Source: AGRICOLA database (1970-1996)

Absalom, J. P., S. D. Young, et al. (2001). Predicting the transfer of radiocaesium from organic soils to plants using soil characteristics. Journal of Environmental Radioactivity. [print] 52(1): 31-43. {a} School of Biological Sciences, University of Nottingham, Loughborough, Sutton Bonington Campus, Leicestershire, LE12 5RD, UK

Altpeter, F. and U. K. Posselt (2000). Improved plant regeneration from cell suspensions of commercial cultivars, breeding- and inbred lines of perennial ryegrass (Lolium perenne L.). Journal of Plant Physiology. [print] May 156(5-6): 790-796. {a} AG Gentransfer IPK Gatersleben, Corrensstr. 3, 06466, Gatersleben, Germany

Bahmani, I., L. Hazard, et al. (2000). Differences in tillering of long- and short-leaved perennial ryegrass genetic lines under full light and shade treatments. Crop Science. [print] July August 40(4): 1095-1102. {a} Unite d'Ecophysiologie des Plantes Fourrageres, Institut National de Recherche Agronomique, F-86600, Lusignan, France

Balfourier, F., C. Imbert, et al. (2000). Evidence for phylogeographic structure in Lolium species related to the spread of agriculture in Europe. A cpDNA study. Theoretical and Applied Genetics. [print] July 101(1-2): 131-138. {a} Station d'Amelioration des Plantes, INRA, 234 Avenue du Brezet, F-63039, Clermont-Ferrand Cedex, France

Barrell, L. G., J. L. Burke, et al. (2000). Preparation of fresh forages for incubation and prediction of nutritive value. Proceedings of the New Zealand Society of Animal Production. [print] 60: 5-8. {a} AgResearch, Grasslands Centre, Palmerston North, New Zealand

Bennett, S. J., M. D. Hayward, et al. (2000). Morphological differentiation in four species of the genus Lolium. Genetic Resources and Crop Evolution. [print] June 47(3): 247-255. {a} School of Biological Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK

Bittman, S. and C. G. Kowalenko (2000). Within-season grass herbage crude-protein- and nitrate-N concentrations as affected by rates and seasonal distribution of fertilizer nitrogen in a high yearly rainfall climate. Canadian Journal of Plant Science. [print] April 80(2): 277-285. {a} Pacific Agri-Food Research Centre, Agriculture and Agri-Food Canada, Agassiz, BC, V0M 1A0, Canada

Bonnet, M., O. Camares, et al. (2000). Effects of zinc and influence of Acremonium lolii on growth parameters, chlorophyll a fluorescence and antioxidant enzyme activities of ryegrass (Lolium perenne L. cv Apollo). Journal of Experimental Botany. [print] May 51(346): 945-953. {a} Institut Universitaire de Technologie Genie Biologique, 100 Rue de l'egalite, 15000, Aurillac, France

Boschma, S. P. and J. M. Scott (2000). Measuring and predicting the consequences of drought for a range of perennial grasses on the Northern Tablelands of New South Wales. Australian Journal of Experimental Agriculture. [print] 40(2): 285-297. {a} NSW Agriculture, Calala Lane, Tamworth, NSW, 2340, Australia

Boukhars, L. and A. Rada (2000). Plant exposure to cadmium in moroccan calcareous salty soils treated with sewage sludges and wastewaters. Environmental Technology. [print] June 21(6): 641-652. {a} Laboratoire d'Ecotoxicologie, Departement de Biologie, Faculte des Sciences-Semlalia, Marrakesh, Morocco

Brock, J. L., K. A. Albrecht, et al. (2000). Morphology of white clover during development from seed to clonal populations in grazed pastures. Journal of Agricultural Science. [print] September 135(2): 103-111. {a} Grasslands Research Centre, AgResearch, Palmerston North, New Zealand

Burgess, C. P., R. Chapman, et al. (2000). Shallow mechanical loosening of a soil under dairy cattle grazing: Effects on soil and pasture. New Zealand Journal of Agricultural Research. [print] June 43(2): 279-290. {a} Dairying Research Corporation, Hamilton, New Zealand

Burggraaf, V. T. and E. R. Thom (2000). Contamination and persistence of endophyte-free ryegrass pastures established by spray-drilling, and intensively grazed by dairy cows in the Waikato region of New Zealand. New Zealand Journal of Agricultural Research. [print] June 43(2): 163-173. {a} Dairying Research Corporation, Hamilton, New Zealand

Cao, M., D. A. Sleper, et al. (2000). Genomic in situ hybridization (GISH) reveals high chromosome pairing affinity between Lolium perenne and Festuca mairei. Genome . April 43(2): 398-403. {a} Department of Agronomy, University of Missouri, Columbia, MO, 65211, USA

Carruthers, K., B. Prithiviraj, et al. (2000). Intercropping of corn with soybean, lupin and forages: Silage yield and quality. Journal of Agronomy and Crop Science. [print] October 185(3): 177-185. {a} Department of Plant Science, McGill University, 21, 111 Lakeshore, Macdonald Campus, Sainte-Anne-de-Bellevue, PQ, H9X 3V9, Canada

Carruthers, K., B. Prithiviraj, et al. (2000). Intercropping corn with soybean, lupin and forages: Yield component responses. European Journal of Agronomy. March 12(2): 103-115. {a} Department of Plant Science, McGill University, 21, 111 Lakeshore, Macdonald Campus, Ste. Anne-de-Bellevue, Que., Canada

Casler, M. D., D. C. West, et al. (2000). Establishment of temperate pasture species into alfalfa by frost-seeding. Agronomy Journal. Nov. Dec. 91(6): 916-921. {a} Dep. of Agronomy, Univ. of Wisconsin, Madison, WI, 53706-1597, USA

Chadwick, D. R., F. John, et al. (2000). Plant uptake of nitrogen from the organic nitrogen fraction of animal manures: A laboratory experiment. Journal of Agricultural Science. March 134(2): 159-168. {a} Institute of Grassland and Environmental Research, North Wyke, Okehampton, Devon, EX20 2SB, UK

Cheplick, G. P. and C. M. Gutierrez (2000). Clonal growth and storage in relation to competition in genets of the rhizomatous perennial Amphibromus scabrivalvis. Canadian Journal of Botany. [print] April 78(4): 537-546. {a} Department of Biology, College of Staten Island, City University of New York, Staten Island, NY, 10314, USA

Christensen, M. J., W. R. Simpson, et al. (2000). Infection of tall fescue and perennial ryegrass plants by combinations of different Neotyphodium endophytes. Mycological Research. [print] August 104(8): 974-978. {a} AgResearch Grasslands Research Centre, Palmerston North, New Zealand

Clotuche, P. and A. Peeters (2000). Nitrogen uptake by Italian ryegrass after destruction of non-fertilized set-aside covers at different times in autumn and winter. Journal of Agronomy and Crop Science. April 184(2): 121-131. {a} Laboratoire d'Ecologie des Prairies, Universite Catholique de Louvain, Place Croix de Sud, 5 Bte 1, 1348, Louvain-la-Neuve, Belgium

Cody, W. J., K. L. MacInnes, et al. (2000). Alien and invasive native vascular plants along the Norman Wells Pipeline, District of Mackenzie, Northwest Territories. Canadian Field Naturalist. [print] Jan. March 114(1): 126-137. {a} Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, Central Experimental Farm, Ottawa, ON, K1A 0C6, Canada

Concha, M. A. and A. M. Nicol (2000). Selection by sheep and goats for perennial ryegrass and white clover offered over a range of sward height contrasts. Grass and Forage Science. March 55(1): 47-58. {a} Animal and Food Sciences Division, Lincoln University, Canterbury, New Zealand

Cookson, W. R., J. S. Rowarth, et al. (2000). The fate of residual nitrogen fertiliser applied to a ryegrass (Lolium perenne L.) seed crop. Australian Journal of Agricultural Research 51(2): 287-294. {a} Soil, Plant and Ecological Sciences Division, Lincoln University, Hilgendorf Building, Canterbury, New Zealand

Cosgrove, G. P. and J. H. Niezen (2000). Intake and selection for white clover by grazing lambs in response to gastrointestinal parasitism. Applied Animal Behaviour Science. Feb. 66(1-2): 71-85. {a} Grasslands Research Centre, AgResearch, Palmerston North, New Zealand

Davies, D. M. and J. D. Graves (2000). The impact of phosphorus on interactions of the hemiparasitic angiosperm Rhinanthus minor and its host Lolium perenne. Oecologia Berlin. [print] July 124(1): 100-106. {a} Department of Environmental Science, College of Ripon and York St John, Heworth Croft, York, YO3 7SX, UK

Davies, Z. S., D. Mason, et al. (2000). An automated system for measuring gas production from forages inoculated with rumen fluid and its use in determining the effect of enzymes on grass silage. Animal Feed Science and Technology. March 83(3-4): 205-221. {a} Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth, Wales, SY23 3EB, UK

Dawson, L. A., R. W. Mayes, et al. (2000). Root hydrocarbons as potential markers for determining species composition. Plant Cell and Environment. [print] July 23(7): 743-750. {a} Macaulay Land Use Research Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK

Drewry, J. J., J. A. H. Lowe, et al. (2000). Effect of subsoiling on soil physical properties and pasture production on a Pallic Soil in Southland, New Zealand. New Zealand Journal of Agricultural Research. [print] June 43(2): 269-277. {a} AgResearch, C/- Soil and Physical Sciences Group, Soil, Plant and Ecological Sciences Division, Lincoln University, Canterbury, New Zealand

Drewry, J. J. and R. J. Paton (2000). Effect of subsoiling on soil physical properties and dry matter production on a Brown Soil in Southland, New Zealand. New Zealand Journal of Agricultural Research. [print] June 43(2): 259-268. {a} AgResearch, C/- Soil and Physical Sciences Group, Soil, Plant and Ecological Sciences Division, Lincoln University, Canterbury, New Zealand

Dumont, B., J. F. Maillard, et al. (2000). The effect of the spatial distribution of plant species within the sward on the searching success of sheep when grazing. Grass and Forage Science. [print] June 55(2): 138-145. {a} Centre de Clermont-Fd/Theix, INRA, URH, 63122, Saint-Genes-Champanelle, France

Elgersma, A., H. Schlepers, et al. (2000). Interactions between perennial ryegrass (Lolium perenne L.) and white clover (Trifolium repens L.) under contrasting nitrogen availability: Productivity, seasonal patterns of species composition, N2 fixation, N transfer and N recovery. Plant and Soil. [print] 221(2): 281-299. {a} C.T. de Wit Graduate School for Production Ecology and Resource Conservation (PE and RC), Group Crop and Weed Ecology, Wageningen University, Haarweg 333, 6709 RZ, Wageningen, Netherlands

Eriksen, J. and M. Askegaard (2000). Sulphate leaching in an organic crop rotation on sandy soil in Denmark. Agriculture Ecosystems and Environment. April 78(2): 107-114. {a} Department of Crop Physiology and Soil Science, Danish Institute of Agricultural Sciences, DK-8830, Tjele, Denmark

Giddings, G. (2000). Modelling the spread of pollen from Lolium perenne. The implications for the release of wind-pollinated transgenics. Theoretical and Applied Genetics. April 100(6): 971-974. {a} Institute of Biological Sciences, University of Wales, Cledwyn Building, Aberystwyth, Ceredigion, UK

Gilliland, T. J. and R. L. Mann (2000). Effect of sward cutting management on the relative performance of perennial ryegrass varieties. Journal of Agricultural Science. [print] September 135(2): 113-122. {a} Plant Testing Station, 50 Houston Road, Crossnacreevy, Belfast, BT6 9SH, UK

Goldson, S. L., J. R. Proffitt, et al. (2000). Multitrophic interaction between the ryegrass Lolium perenne, its endophyte Neotyphodium lolii, the weevil pest Listronotus bonariensis, and its parasitoid Microctonus hyperodae. New Zealand Journal of Agricultural Research. [print] June 43(2): 227-233. {a} AgResearch, Lincoln, New Zealand

Graham, J. F., T. Prance, et al. (2000). The effects of grazing management on perennial ryegrass (Lolium perenne L.) herbage mass and persistence in south-eastern Australia. Australian Journal of Experimental Agriculture. [print] 40(2): 207-224. {a} Pastoral and Veterinary Institute, Agriculture Victoria, Hamilton, Vic., 3300, Australia

Greer, D. H., W. A. Laing, et al. (2000). The effect of perturbations in temperature and photon flux density on the growth and photosynthetic responses of five pasture species to elevated CO2. Australian Journal of Plant Physiology. [print] 27(4): 301-310. {a} HortResearch, Palmerston North Research Centre, Palmerston North, New Zealand

Griffith, S. M. (2000). Changes in dry matter, carbohydrate and seed yield resulting from lodging in three temperate grass species. Annals of Botany London. [print] May 85(5): 675-680. {a} National Forage Seed Production Research Center, USDA ARS, Corvallis, OR, 97331, USA

Grote, M., S. Vrtala, et al. (2000). Expulsion of allergen-containing materials from hydrated rye grass (Lolium perenne) pollen revealed by using immunogold field emission scanning and transmission electron microscopy. Journal of Allergy and Clinical Immunology. [print] June 105(6 Part 1): 1140-1145. {a} Institute of Medical Physics and Biophysics, University of Muenster, Robert-Koch-Strasse 31, 48149, Muenster, Germany

Harding, R. J., C. Huntingford, et al. (2000). Modelling long-term transpiration measurements from grassland in southern England. Agricultural and Forest Meteorology. Feb. 100(4): 309-322. {a} Institute of Hydrology, Crowmarsh Gifford, Wallingford, Oxon, OX10 8BB, UK

Harmon, P., K. Rane, et al. (2000). First report of gray leaf spot on perennial ryegrass in Indiana. Plant Disease. April 84(4): 492. {a} Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN, 47907-1155, USA

Heidenreich, S. C., M. Kruse, et al. (2000). Verification of perennial ryegrass blends (Lolium perenne L.): Comparison of growing tests and bulk seed storage protein electrophoresis. Plant Varieties and Seeds. [print] April 13(1): 61-66. {a} Institut fuer Pflanzenzuechtung, Saatgutforschung und Populationsgenetik, Universitaet Hohenheim, 350, D-70593, Stuttgart, Germany

Hodge, A., D. Robinson, et al. (2000). An arbuscular mycorrhizal inoculum enhances root proliferation in, but not nitrogen capture from, nutrient-rich patches in soil. New Phytologist. March 145(3): 575-584. {a} Department of Biology, The University of York, York, YO10 5YW, UK

Hodge, A., J. Stewart, et al. (2000). Plant N capture and microfaunal dynamics from decomposing grass and earthworm residues in soil. Soil Biology and Biochemistry. [print] October 32(11-12): 1763-1772. {a} Department of Biology, University of York, York, YO10 5YW, UK

Hodge, A., J. Stewart, et al. (2000). Competition between roots and soil micro-organisms for nutrients from nitrogen-rich patches of varying complexity. Journal of Ecology. Feb. 88(1): 150-164. {a} Department of Biology, University of York, York, YO10 5YW, UK

Ishida, S., S. R. Miller, et al. (2000). Enzymatic activity of protoporphyrinogen-IX oxidase from various plant species: Its sensitivity to peroxidizing herbicides. Journal of Pesticide Science 25(1): 18-23. {a} Graduate School of Agricultural Science, Tamagawa University, Machida, Tokyo, 194-8610, Japan

Isopp, H., M. Frehner, et al. (2000). Nitrogen plays a major role in leaves when source-sink relations change: C and N metabolism in Lolium perenne growing under free air CO2 enrichment. Australian Journal of Plant Physiology. [print] 27(8-9): 851-858. {a} Institute of Plant Sciences, Swiss Federal Institute of Technology, Universitatstrasse 2, CH-8092, Zurich, Switzerland

Isopp, H., M. Frehner, et al. (2000). Sucrose-phosphate synthase responds differently to source-sink relations and to photosynthetic rates: Lolium perenne L. growing at elevated pCO2 in the field. Plant Cell and Environment. [print] June 23(6): 597-607. {a} Institute of Plant Sciences, Swiss Federal Institute of Technology, Universitatstrasse 2, 8092, Zurich, Switzerland

Jansen, C., I. Schuphan, et al. (2000). Glufosinate metabolism in excised shoots and leaves of twenty plant species. Weed Science. [print] May June 48(3): 319-326. {a} Department of Biology V (Ecology/Ecotoxicology/Ecochemistry), Technical University of Aachen, Worringer Weg 1, D-52056, Aachen, Germany

Jenkins, G., J. Head, et al. (2000). Probing meiosis in hybrids of Lolium (Poaceae) with a discriminatory repetitive genomic sequence. Chromosoma Berlin. [print] 109(4): 280-286. {a} Institute of Biological Sciences, UW Aberystwyth, Penglais, Cledwyn Building, Aberystwyth, Ceredigion, SY23 3DD, UK

Keating, T. and K. P. O (2000). Comparison of old permanent grassland, Lolium perenne and Lolium multiflorum swards grown for silage: 2. Effects on conservation characteristics in laboratory silos. Irish Journal of Agricultural and Food Research. [print] June 39(1): 25-33. {a} Grange Research Centre, Teagasc, Dunsany, Co. Meath, Ireland

Keating, T. and K. P. O (2000). Comparison of old permanent grassland, Lolium perenne and Lolium multiflorum swards grown for silage: 4. Effects of varying harvesting date. Irish Journal of Agricultural and Food Research. [print] June 39(1): 55-71. {a} Grange Research Centre, Teagasc, Dunsany, Co. Meath, Ireland

Keating, T. and K. P. O (2000). Comparison of old permanent grassland, Lolium perenne and Lolium multiflorum swards grown for silage: 3. Effects of varying fertiliser nitrogen application rate. Irish Journal of Agricultural and Food Research. [print] June 39(1): 35-53. {a} Grange Research Centre, Teagasc, Dunsany, Co. Meath, Ireland

Keating, T. and K. P. O (2000). Comparison of old permanent grassland, Lolium perenne and Lolium multiflorum swards grown for silage: 1. Effects on beef production per hectare. Irish Journal of Agricultural and Food Research. [print] June 39(1): 1-24. {a} Grange Research Centre, Teagasc, Dunsany, Co. Meath, Ireland

Knight, D. A., N. Asokananthan, et al. (2000). Oncostatin M synergises with house dust mite proteases to induce the production of PGE2 from cultured lung epithelial cells. British Journal of Pharmacology. [print] October 131(3): 465-472. {a} Asthma and Allergy Research Unit, Department of Medicine, University of WA, QE II Medical Centre, Verdun Street, 4th Floor "G" Block, Nedlands, WA, 6009, Australia

Kowalenko, C. G. and S. Bittman (2000). Within-season grass yield and nitrogen uptake, and soil nitrogen as affected by nitrogen applied at various rates and distributions in a high rainfall environment. Canadian Journal of Plant Science. [print] April 80(2): 287-301. {a} Pacific Agri-Food Research Centre, Agriculture and Agri-Food Canada, Agassiz, BC, V0M 1A0, Canada

Kuk, Y. I., N. R. Burgos, et al. (2000). Cross- and multiple resistance of diclofop-resistant Lolium spp. Weed Science. [print] July August 48(4): 412-419. {a} Department of Crop, Soil, and Environmental Sciences, University of Arkansas, 276 Altheimer Drive, Fayetteville, AR, 72704, USA

Kurstjens, D. A. G., U. D. Perdok, et al. (2000). Selective uprooting by weed harrowing on sandy soils. Weed Research. [print] October 40(5): 431-447. {a} Wageningen University and Research Centre, Institute of Agricultural and Environmental Engineering (WUR-IMAG), 6700 AA, Wageningen, Netherlands

Kuznetsov, V. K., N. I. Sanzharova, et al. (2000). Accumulation of 137Cs in vegetable production in connection with specific and varietal peculiarities of agricultural crops. Sel'skokhozyaistvennaya Biologiya. [print] Jan. Feb. 1: 64-70.

Kvarnstrom, E., C. Morel, et al. (2000). Changes in the phosphorus availability of a chemically precipitated urban sewage sludge as a result of different dewatering processes. Waste Management and Research. [print] June 18(3): 249-258. {a} Division of Sanitary Engineering, Lulea University of Technology, SE-971 87, Lulea, Sweden

Laidlaw, A. S., C. J. Watson, et al. (2000). Implications of nitrogen fertilizer applications and extended grazing for the N economy of grassland. Grass and Forage Science. March 55(1): 37-46. {a} Plant Testing Station, 50 Houston Road, Crossnacreevy, Belfast, BT6 9SH, UK

Lawrence, M. J. (2000). Population genetics of the homomorphic self-incompatibility polymorphisms in flowering plants. Annals of Botany London. March 85(Suppl. A): 221-226. {a} Wolfson Laboratory for Plant Molecular Biology, Plant Genetics and Cell Biology Group, School of Biosciences, University of Birmingham, Birmingham, B15 2TT, UK

Lehman, V. G., M. E. Pompei, et al. (2000). Registration of 'Palmer III' perennial ryegrass. Crop Science. [print] July August 40(4): 1201-1202. {a} Plant Science Dep., Cook College, Rutgers Univ., Foran Hall, New Brunswick, NJ, 08901, USA

Leuchtmann, A., D. Schmidt, et al. (2000). Different levels of protective alkaloids in grasses with stroma-forming and seed-transmitted Epichloe/Neotyphodium endophytes. Journal of Chemical Ecology. April 26(4): 1025-1036. {a} Geobotanisches Institut ETH, Zollikerstrasse 107, CH-8008, Zurich, Switzerland

Louahlia, S., P. Laine, et al. (2000). The role of N-remobilisation and the uptake of NH4+ and NO3- by Lolium perenne L. in laminae growth following defoliation under field conditions. Plant and Soil. [print] 220(1-2): 175-187. {a} 950 Physiologie et Biochimie Vegetales, U.A. INRA, Institut de Recherche en Biologie Appliquee, Universite, 14032, Caen Cedex, France

Maejima, A., S. Saiga, et al. (2000). Endophyte infection rate and alkaloid concentrations in seeds of commercial cultivars of perennial ryegrass. Grassland Science. [print] April 46(1): 52-57. {a} Faculty of Agriculture, Iwate University, Morioka, 020-8550, Japan

McGorum, B. C., S. C. Fry, et al. (2000). Properties of herbage in relation to equine dysautonomia: Biochemical composition and antioxidant and prooxidant actions. Journal of Agricultural and Food Chemistry. [print] June 48(6): 2346-2352. {a} Easter Bush Veterinary Centre, University of Edinburgh, Edinburgh, UK

Merrington, G. and C. Madden (2000). Changes in cadmium and zinc phytoavailability in agricultural soil after amendment with papermill sludge and biosolids. Communications in Soil Science and Plant Analysis. March 31(5-6): 759-776. {a} Department of Soil and Water, University of Adelaide, Waite Campus, Adelaide, SA, Australia

Nissen, L. R., N. W. Lepp, et al. (2000). Synthetic zeolites as amendments for sewage sludge-based compost. Chemosphere . July 41(1-2): 265-269. {a} School of Biological and Earth Sciences, Liverpool John Moores University, Byrom Street, Liverpool, L3 3AF, UK

Nsereko, V. L. and J. A. Rooke (2000). Characterisation of peptides in silages made from perennial ryegrass with different silage additives. Journal of the Science of Food and Agriculture. May 80(6): 725-731. {a} Animal Biology Division, SAC, Craibstone Estate, Aberdeen, AB21 9YA, UK

Olesen, J. E., M. Askegaard, et al. (2000). Design of an organic farming crop-rotation experiment. Acta Agriculturae Scandinavica Section B Soil and Plant Science. [print] March 50(1): 13-21. {a} Department of Crop Physiology and Soil Science, Danish Institute of Agricultural Sciences, DK-8830, Tjele, Denmark

Pasakinskiene, I. (2000). Culture of embryos and shoot tips for chromosome doubling in Lolium perenne and sterile hybrids between Lolium and Festuca. Plant Breeding. April 119(2): 185-187. {a} Dotnuva-Akademija, Lithuanian Institute of Agriculture, 5051, Kedainiai, Lithuania

Pasakinskiene, I., C. M. Griffiths, et al. (2000). Anchored simple-sequence repeats as primers to generate species-specific DNA markers in Lolium and Festuca grasses. Theoretical and Applied Genetics. Feb. 100(3-4): 384-390. {a} Dotnuva-Akademija, Lithuanian Institute of Agriculture, 5051, Kedainiai, Lithuania

Pedersen, D. K., R. T. Kane, et al. (2000). First report of gray leaf spot caused by Pyricularia grisea on Lolium perenne in Illinois. Plant Disease. [print] October 84(10). {a} Department of Natural Resources and Environmental Sciences, Champaign-Urbana, IL, 61801, USA

Piquery, L., C. Davoine, et al. (2000). Senescence of leaf sheaths of ryegrass stubble: Changes in enzyme activities related to H2O2 metabolism. Plant Growth Regulation. Jan. 30(1): 71-77. {a} Laboratoire de Physiologie et Biochimie Vegetales, U.A. INRA 950, Institut de Recherche en Biologie Appliquee, Universite, 14032, Caen Cedex, France

Quigley, P. E. (2000). Effects of Neotyphodium lolii infection and sowing rate of perennial ryegrass (Lolium perenne) on the dynamics of ryegrass/subterranean clover (Trifolium subterraneum) swards. Australian Journal of Agricultural Research 51(1): 47-56. {a} Agriculture Victoria, Pastoral and Veterinary Institute, Hamilton, VIC, 3300, Australia

Ramirez, P. A. H., S. E. Buntinx, et al. (2000). Effect of breed and age on the voluntary intake and the micromineral status of non-pregnant sheep. II. Micromineral status. Small Ruminant Research. [print] August 37(3): 231-242. {a} Departamento de Nutricion, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autonoma de Mexico, Mexico, D.F., 04510, Mexico

Ramirez, P. A. H., S. E. Buntinx, et al. (2000). Effect of breed and age on the voluntary intake and the micromineral status of non-pregnant sheep. 1. Estimation of voluntary intake. Small Ruminant Research. [print] August 37(3): 223-229. {a} Departamento de Nutricion, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autonoma de Mexico, Mexico City, D.F., 04510, Mexico

Razmovski, V., M. T. J. O, et al. (2000). A new method for simultaneous immunodetection and morphologic identification of individual sources of pollen allergens. Journal of Allergy and Clinical Immunology. April 105(4): 725-731. {a} Institute of Respiratory Medicine, University of Sydney, Room 461, Blackburn Building (D06), Syndney, NSW, 2006, Australia

Reed, K. F. M., A. Leonforte, et al. (2000). Incidence of ryegrass endophyte (Neotyphodium lolii) and diversity of associated alkaloid concentrations among naturalised populations of perennial ryegrass (Lolium perenne L.). Australian Journal of Agricultural Research. [print] 51(5): 569-578. {a} Agriculture Victoria, Pastoral and Veterinary Institute, Hamilton, VIC, 3300, Australia

Rigueiro, R. A., L. M. R. Mosquera, et al. (2000). Pasture production and tree growth in a young pine plantation fertilized with inorganic fertilizers and milk sewage in northwestern Spain. Agroforestry Systems 48(3): 245-256. {a} Departamento de Produccion Vegetal, Escuela Politecnica Superior, Lugo, 27002, Spain

Roderick, H. W., D. Thorogood, et al. (2000). Temperature-dependent resistance to crown rust infection in perennial ryegrass, Lolium perenne. Plant Breeding. Feb. 119(1): 93-95. {a} Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth, SY23 3EB, UK

Roldan, R. I., J. Dendauw, et al. (2000). AFLP markers reveal high polymorphic rates in ryegrasses (Lolium spp.). Molecular Breeding. April 6(2): 125-134. {a} Department of Plant Genetics and Breeding, Centre of Agricultural Research-Gent, Caritasstraat 21, 9090, Melle, Belgium

Ryan, M. H., D. R. Small, et al. (2000). Phosphorus controls the level of colonisation by arbuscular mycorrhizal fungi in conventional and biodynamic irrigated dairy pastures. Australian Journal of Experimental Agriculture. [print] 40(5): 663-670. {a} CSIRO Plant Industry, Canberra, ACT, 2601, Australia

Saigusa, M., K. Onozawa, et al. (2000). Effects of porous hydrate calcium silicate on the silica nutrition of turf grasses. Grassland Science. Jan. 45(4): 411-415. {a} Experimental Farm of Tohoku University, Naruko, Miyagi, 989-6711, Japan

Saikkonen, K., J. Ahlholm, et al. (2000). Endophytic fungi in wild and cultivated grasses in Finland. Ecography . [print] June 23(3): 360-366. {a} Dept of Biology, Univ. of Turku, FIN-20014, Turku, Finland

Sanderson, M. A. and G. F. Elwinger (2000). Grass species and cultivar effects on establishment of grass-white clover mixtures. Agronomy Journal. Nov. Dec. 91(6): 889-897. {a} ARS Pasture Systems and Watershed Management Res. Lab., USDA, Curtin Rd., Bldg. 3702, University Park, PA, 16802-3702, USA

Schaeufele, R. and H. Schnyder (2000). Cell growth analysis during steady and non-steady growth in leaves of perennial ryegrass (Lolium perenne L.) subject to defoliation. Plant Cell and Environment. Feb. 23(2): 185-194. {a} Technische Universitaet Muechen, Am Hochanger 1, D-85350, Freising-Weihensteph, Germany

Siciliano, S. D. and C. W. Greer (2000). Plant-bacterial combinations to phytoremediate soil contaminated with high concentrations of 2,4,6-trinitrotoluene. Journal of Environmental Quality. Jan. Feb. 29(1): 311-316. {a} Biotechnology Research Institute, 6100 Royalmount, Montreal, PQ, H4P 2R2, Canada

Silva, R. G., K. C. Cameron, et al. (2000). Effect of macropore flow on the transport of surface-applied cow urine through a soil profile. Australian Journal of Soil Research 38(1): 13-23. {a} Centre for Soil and Environmental Quality, Lincoln University, Canterbury, New Zealand

Slack, K., W. J. Fulkerson, et al. (2000). Regrowth of prairie grass (Bromus willdenowii Kunth) and perennial ryegrass (Lolium perenne L.) in response to temperature and defoliation. Australian Journal of Agricultural Research. [print] 51(5): 555-561. {a} NSW Agriculture, Wollongbar Agriculture Institute, Wollongbar, NSW, 2477, Australia

Smith, K. F. and G. A. Kearney (2000). The distribution of errors associated with genotype and environment during the prediction of the water-soluble carbohydrate concentration of perennial ryegrass cultivars using near infrared reflectance spectroscopy. Australian Journal of Agricultural Research. [print] 51(4): 481-486. {a} Agriculture Victoria, Pastoral and Veterinary Institute, Hamilton, VIC, 3300, Australia

Sowerby, A., H. Blum, et al. (2000). The decomposition of Lolium perenne in soils exposed to elevated CO2: Comparisons of mass loss of litter with soil respiration and soil microbial biomass. Soil Biology and Biochemistry. [print] September 32(10): 1359-1366. {a} Department of Biological Sciences, John Tabor Laboratories, Essex University, Wivenhoe Park, Colchester, Essex, CO4 3SQ, UK

Stout, W. L., S. L. Fales, et al. (2000). Water quality implications of nitrate leaching from intensively grazed pasture swards in the northeast US. Agriculture Ecosystems and Environment. Feb. 77(3): 203-210. {a} Pasture Systems and Watershed Management Research Laboratory, United States Department of Agriculture/Agricultural Research Service, Curtin Road, University Park, PA, 16802-3702, USA

Streeter, T. C., R. Bol, et al. (2000). Amino acids as a nitrogen source in temperate upland grasslands: The use of dual labelled (13C, 15N) glycine to test for direct uptake by dominant grasses. Rapid Communications in Mass Spectrometry. [print] 14(15): 1351-1355. {a} Department of Biological Science, Institute of Environmental and Natural Sciences, Lancaster University, Lancaster, LA1 4YQ, UK

Sweeney, P. and K. Danneberger (2000). Inheritance of restriction amplification fragment length polymorphisms in perennial ryegrass. Crop Science. [print] July August 40(4): 1126-1129. {a} Dep. of Hort. and Crop Sci., Ohio State Univ., Columbus, OH, 43210, USA

Torstensson, G. and H. Aronsson (2000). Nitrogen leaching and crop availability in manured catch crop systems in Sweden. Nutrient Cycling in Agroecosystems. Feb. 56(2): 139-152. {a} Department of Soil Sciences, Swedish University of Agricultural Sciences, S-75007, Uppsala, Sweden

Tye, A., M. Fullen, et al. (2000). Response of grass leys to applications of calcified seaweed. Communications in Soil Science and Plant Analysis. Feb. 31(3-4): 529-542. {a} Division of Environmental Science, School of Biology, University of Nottingham, Loughborough, Sutton Bonington Campus, Leicestershire, LEI2 5RD, UK

van, G. J. H., A. Gorissen, et al. (2000). Elevated atmospheric carbon dioxide concentration: Effects of increased carbon input in a Lolium perenne soil on microorganisms and decomposition. Soil Biology and Biochemistry. April 32(4): 449-456. {a} Plant Research International, 6700 AA, Wageningen, Netherlands

Vinther, F. P. and E. S. Jensen (2000). Estimating legume N2 fixation in grass-clover mixtures of a grazed organic cropping system using two 15N methods. Agriculture Ecosystems and Environment. April 78(2): 139-147. {a} Department Soil Science and Plant Physiology, Research Centre Foulum, Danish Institute of Agricultural Sciences, DK-8830, Tjele, Denmark

Wang, J. G., F. S. Zhang, et al. (2000). Release of potassium from K-bearing minerals: Effect of plant roots under P deficiency. Nutrient Cycling in Agroecosystems. Jan. 56(1): 45-52. {a} Department of Plant Nutrition, China Agricultural University, Beijing, 100094, China

Watson, C. A., J. M. Ross, et al. (2000). Environment-induced modifications to root longevity in Lolium perenne and Trifolium repens. Annals of Botany London. March 85(3): 397-401. {a} Land Management Department, Environmental Division, SAC, Craibstone Estate, Aberdeen, AB21 9YA, UK

Watson, C. J., C. Jordan, et al. (2000). Inorganic nitrogen in drainage water from grazed grassland in Northern Ireland. Journal of Environmental Quality. Jan. Feb. 29(1): 225-232. {a} Agricultural and Environmental Science Division, Dep. of Agriculture for Northern Ireland, Newforge Lane, Belfast, BT9 5PX, UK

Webster, E. A., J. A. Chudek, et al. (2000). Carbon transformations during decomposition of different components of plant leaves in soil. Soil Biology and Biochemistry. March 32(3): 301-314. {a} Department of Environmental Science, University of Stirling, Stirling, FK9 4LA, UK

Widmer, F., P. J. Hayes, et al. (2000). Substrate preference profiles of proteases released by allergenic pollens. Clinical and Experimental Allergy. [print] April 30(4): 571-576. {a} School of Pathology, University of New South Wales, Sydney, NSW, 2052, Australia

Wilkins, P. W., D. K. Allen, et al. (2000). Differences in the nitrogen use efficiency of perennial ryegrass varieties under simulated rotational grazing and their effects on nitrogen recovery and herbage nitrogen content. Grass and Forage Science. March 55(1): 69-76. {a} Plant Breeding Department, IGER, Plas Gogerddan, Aberystwyth, SY23 3EB, UK

Williams, P. H. and R. J. Haynes (2000). Transformations and plant uptake of urine N and S in long and short-term pastures. Nutrient Cycling in Agroecosystems. Feb. 56(2): 109-116. {a} Canterbury Agriculture and Science Centre, New Zealand Institute for Crop and Food Research Ltd, Christchurch, New Zealand

Williams, P. H., J. S. Rowarth, et al. (2000). Recovery of 15N-labelled fertiliser by a perennial ryegrass seed crop and a subsequent wheat crop. Nutrient Cycling in Agroecosystems. Feb. 56(2): 117-123. {a} Canterbury Agriculture and Science Centre, New Zealand Institute for Crop and Food Research Ltd, Christchurch, New Zealand

Williams, T. A., M. T. Abberton, et al. (2000). Contribution of white clover varieties in high-productivity systems under grazing and cutting. Journal of Agronomy and Crop Science. [print] September 185(2): 121-128. {a} Legume Breeding Group, Institute of Grassland and Environmental Research, Aberystwyth, UK

Wouters, T. C. A. E. and G. Booy (2000). Stability of esterases and total proteins during seed storage of perennial ryegrass (Lolium perenne L.) and their use for cultivar discrimination. Euphytica 111(3): 161-168. {a} Centre for Plant Breeding and Reproduction Research (CPRO-DLO), 6700 AA, Wageningen, Netherlands

Zak, N. T., F. M. Kraus, et al. (2000). Histamine receptor expression on peripheral blood lymphocytes is influenced by specific and nonspecific activation. Archivum Immunologiae et Therapiae Experimentalis. [print] 48(2): 107-110. {a} Department of Internal Medicine and Allergology, University Medical School, Traugutta 57/59, 50-417, Wroclaw, Poland

Zhu, Y. G., A. S. Laidlaw, et al. (2000). The specificity of arbuscular mycorrhizal fungi in perennial ryegrass-white clover pasture. Agriculture Ecosystems and Environment. Feb. 77(3): 211-218. {a} Department of Soil Science, University of Adelaide, Glen Osmond, SA, 5064, Australia

Acosta, M. V., Z. Reicher, et al. (1999). The role of tree leaf mulch and nitrogen fertilizer on turfgrass soil quality. Biology and Fertility of Soils 29(1): 55-61. {a} Department of Agronomy, Purdue University, 1150 Lilly Hall, West Lafayette, IN, 47907-1150, USA

Adams, W. A. and M. T. Jan (1999). Utilization of nitrogen accumulated by a clover containing ley following cultivation. Soil Use and Management. Dec. 15(4): 247-253. {a} Soil Science Unit, Institute of Biological Sciences, University of Wales, Aberystwyth, SY23 3DE, UK

Ai, W., J. Zhang, et al. (1999). Phosphorus transfer via mycorrhizal hyphal links from red clover to rye grass. Yingyong Shengtai Xuebao. Oct. 10(5): 615-618. {a} Department of Plant Nutrition, China Agricultural University, Beijing, 100094, China

Amalric, C., H. Sallanon, et al. (1999). Gas exchange and chlorophyll fluorescence in symbiotic and non-symbiotic ryegrass under water stress. Photosynthetica Prague 37(1): 107-112. {a} Laboratoire de 'Biotechnologies Environnement Sante', Universite d'Auvergne, Rue de l'Ecole Normale, 15000, Aurillac, France

Anderson, M. W., P. J. Cunningham, et al. (1999). Perennial grasses of Mediterranean origin offer advantages for central western Victorian sheep pasture. Australian Journal of Experimental Agriculture 39(3): 275-284. {a} Pastoral and Veterinary Institute, Agriculture Victoria, Hamilton, Vic., 3300, Australia

Armstead, I. P., A. Bollard, et al. (1999). Chromosome pairing in Lolium perenne X L. temulentum diploid hybrids: Genetic and cytogenetic evaluation. Heredity . [print] Sept 83(3): 298-303. {a} Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth, Ceredigion, SY23 3EB, UK

Arumuganathan, K., S. P. Tallury, et al. (1999). Nuclear DNA content of thirteen turfgrass species by flow cytometry. Crop Science. Sept. Oct. 39(5): 1518-1521. {a} Dep. of Crop Science, North Carolina State Univ., Raleigh, NC, 27695, USA

Bardgett, R. D., J. L. Mawdsley, et al. (1999). Plant species and nitrogen effects on soil biological properties of temperate upland grasslands. Functional Ecology. Oct. 13(5): 650-660. {a} Department of Biological Sciences, Institute of Environmental and Natural Sciences, University of Lancaster, Lancaster, LA1 4YQ, UK

Barker, A. M., N. J. Brown, et al. (1999). Do host-plant requirements and mortality from soil cultivation determine the distribution of graminivorous sawflies on farmland? Journal of Applied Ecology. April 36(2): 271-282. {a} Game Conservancy Trust, Fordingbridge, Hants, SP6 1EF, UK

Barnes, J., J. Bender, et al. (1999). Natural and man-made selection for air pollution resistance. Journal of Experimental Botany. Sept. 50(338): 1423-1435. {a} Department of Agricultural and Environmental Science, University of Newcastle Upon Tyne, Ridley Building, Newcastle Upon Tyne, NE1 7RU, UK

Barthram, G. T., G. R. Bolton, et al. (1999). The effects of cutting intensity and neighbour species on plants of Lolium perenne, Poa annua, Poa trivialis and Trifolium repens. Agronomie Paris. Aug. Sept. 19(6): 445-456. {a} Hartwood Research Station, Macaulay Land Use Research Institute, Shotts, ML7 4JY, UK

Benjaponpitak, S., A. Oro, et al. (1999). The kinetics of change in cytokine production by CD4+ T cells during conventional allergen immunotherapy. Journal of Allergy and Clinical Immunology 103(3 Part 1): 468-475. {a} Department of Pediatrics, Stanford University, Rm H307, Stanford, CA, 94305-5208, USA

Bennet, R. J. and A. Stewart (1999). The aluminium response network in perennial ryegrass (Lolium perenne): II. Water fluxes and ion transport. South African Journal of Plant and Soil. Feb. 16(1): 1-9. {a} ARC-Range and Forage Institute, Pietermaritzburg, 3200, South Africa

Bert, P. F., G. Charmet, et al. (1999). A high-density molecular map for ryegrass (Lolium perenne) using AFLP markers. Theoretical and Applied Genetics. Aug. 99(3-4): 445-452. {a} INRA Station d Amelioration des Plantes, 234 av. du brezet, 63039, Clermont-Ferrand Cedex, France

Bluemmel, M., A. Schroeder, et al. (1999). Estimating ruminal microbial efficiencies in silage-fed cattle: Comparison of an in vitro method with a combination of in situ and in vivo measurements. Journal of Animal Physiology and Animal Nutrition. April 81(2): 57-67. {a} Institute for Animal Production in the Tropics and Subtropics, University of Hohenheim, Stuttgart, Germany

Bluett, S. J., J. Hodgson, et al. (1999). Evaluation of the feeding value of Aries HD perennial ryegrass (Lolium perenne). II. Performance of weaned lambs in summer and autumn. New Zealand Journal of Agricultural Research. Dec. 42(4): 449-458. {a} Institute of Natural Resources, Massey University, Palmerston North, New Zealand

Bluett, S. J., J. Hodgson, et al. (1999). Evaluation of the feeding value of Aries HD perennial ryegrass (Lolium perenne). I. Performance of lactating ewes in spring. New Zealand Journal of Agricultural Research. Dec. 42(4): 441-448. {a} Institute of Natural Resources, Massey University, Palmerston North, New Zealand

Blumenthal, M. J., A. M. Bowman, et al. (1999). Establishment, growth and persistence of greater lotus (Lotus uliginosus) at six sites in eastern Australia. Australian Journal of Experimental Agriculture 39(7): 819-827. {a} NSW Agriculture, Orange, NSW, 2800, Australia

Boehme, F., P. K. Welsch, et al. (1999). Uptake of airborne semivolatile organic compounds in agricultural plants: Field measurements of interspecies variability. Environmental Science and Technology. June 33(11): 1805-1813. {a} Baltic Sea Research Institute, Seestrasse 15, 18119, Rostock, Germany

Brereton, A. J. and D. A. McGilloway (1999). Winter growth of varieties of perennial ryegrass (Lolium perenne L.). Irish Journal of Agricultural and Food Research. June 38(1): 1-12. {a} Ecobiops, 21/23 Oliver Plunkett St., Cork, Ireland

Broadley, M. R., N. J. Willey, et al. (1999). A comparison of caesium uptake kinetics in eight species of grass. Journal of Environmental Radioactivity 46(2): 225-236. {a} Horticulture Research International, Wellesbourne, Warwick, CV35 9EF, UK

Cadot, P., H. E. M. Van, et al. (1999). Composition and stability of allergenic extracts made from gamma-irradiated rye grass (Lolium perenne) pollen. Clinical and Experimental Allergy. Sept. 29(9): 1248-1255. {a} Laboratory of Experimental Immunology, Herestraat 49, B-3000, Leuven, Belgium

Cagas, B., M. Flieger, et al. (1999). Concentration of ergot alkaloids in Czech ecotypes of Lolium perenne and Festuca pratensis. Grass and Forage Science. Dec. 54(4): 365-370. {a} Vyzkumna stanice Travinarska, OSEVA PRO s.r.o., 75654, Zubri, Czech Republic

Campbell, B. D., N. D. Mitchell, et al. (1999). Climate profiles of temperate C3 and subtropical C4 species in New Zealand pastures. New Zealand Journal of Agricultural Research. Sept. 42(3): 223-233. {a} AgResearch Grasslands, Palmerston North, New Zealand

Canter, P. H., I. Pasakinskiene, et al. (1999). Chromosome substitutions and recombination in the amphiploid Lolium perenne X Festuca pratensis cv Prior (2n=4x=28). Theoretical and Applied Genetics. April 98(5): 809-814. {a} Plas Gogerddan, Institute of Grassland and Environmental Research, Aberystwyth, Ceredigion, SY23 3EB, UK

Carranca, C., V. A. de, et al. (1999). Biological nitrogen fixation estimated by 15N dilution, natural 15N abundance, and N difference techniques in a subterranean clover-grass sward under Mediterranean conditions. European Journal of Agronomy 10(2): 81-89. {a} Estacao Agronomica Nacional, Quinta do Marques, 2780, Oeiras, Portugal

Carro, M. D., S. Lopez, et al. (1999). Effect of nitrogen supplementation on the in vitro rumen fermentation of nitrogen deficient forages. Archivos de Zootecnia. [print] 48(183): 295-306. {a} Departamento de Produccion Animal I, Universidad de Leon, 24071, Leon, Spain

Casey, I. A., A. J. Brereton, et al. (1999). Effects of sheath tube length on leaf development in perennial ryegrass (Lolium perenne L.). Annals of Applied Biology. April 134(2): 251-257. {a} Teagasc, Moorepark, Fermoy, Co. Cork, Ireland

Casler, M. D. (1999). Spatial variation affects precision of perennial cool-season forage grass trials. Agronomy Journal. Jan. Feb. 91(1): 75-81. {a} Dep. of Agronomy, Univ. of Wisconsin, Madison, WI, 53706-1597, USA

Casler, M. D. (1999). Repeated measures vs. repeated plantings in perennial forage grass trials: An empirical analysis of precision and accuracy. Euphytica 105(1): 33-42. {a} Dep. Agron., Univ. Wis.-Madison, Madison, WI 53706-1597, USA

Castlebury, L. A. and L. M. Carris (1999). Tilletia walkeri, a new species on Lolium multiflorum and L. perenne. Mycologia . Jan. Feb. 91(1): 121-131. {a} USDA-ARS Systematic Botany and Mycology Lab, 10300 Baltimore Avenue, Beltsville, MD, 20705-2350, USA

Chen, C. and D. A. Sleper (1999). FISH and RFLP marker-assisted introgression of Festuca mairei chromosomes into Lolium perenne. Crop Science. Nov. Dec. 39(6): 1676-1679. {a} Dep. of Agronomy, Univ. of Missouri-Columbia, Columbia, MO, 65211-0001, USA

Chen, X., P. Boeckx, et al. (1999). Emission of N2O from rye grass (Lolium perenne L.). Biology and Fertility of Soils 28(4): 393-396. {a} Fac. Agric. Applied Biol. Sci., Univ. Ghent, Coupure 653, B-9000 Ghent, Belgium

Chiy, P. C. and C. J. C. Phillips (1999). Sodium fertilizer application to pasture. 8. Turnover and defoliation of leaf tissue. Grass and Forage Science. Dec. 54(4): 297-311. {a} Animal Science Division, Department of Clinical Veterinary Medicine, University of Cambridge, Cambridge, CB3 0ES, UK

Chiy, P. C. and C. J. C. Phillips (1999). Effects of sodium fertiliser on the distribution of trace elements, toxic metals and water-soluble carbohydrates in grass and clover fractions. Journal of the Science of Food and Agriculture. Nov. 79(14): 2017-2024. {a} Department of Clinical Veterinary Medicine, University of Cambridge, Cambridge, CB3 0ES, UK

Clark, H., P. C. D. Newton, et al. (1999). Physiological and morphological responses to elevated CO2 and a soil moisture deficit of temperate pasture species growing in an established plant community. Journal of Experimental Botany 50(331): 233-242. {a} AgRes. Grasslands, Private Bag 11008, Palmerston North, New Zealand

Cogger, C. G., D. M. Sullivan, et al. (1999). Nitrogen recovery from heat-dried and dewatered biosolids applied to forage grasses. Journal of Environmental Quality. May June 28(3): 754-759. {a} Puyallup Research and Extension Center, Washington State Univ., 7612 Pioneer Way E., Puyallup, WA, 98371-4998, USA

Colbaugh, P. F. and S. P. Metz (1999). Chemical control of algal mats on golf course greens. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent. [print] 64(3b): 687-692. {a} Texas A and M University Research and Extension Center, 17360 Coit Road, Dallas, TX, 75252-6599, USA

Cone, J. W. and G. A. H. Van (1999). Influence of protein fermentation on gas production profiles. Animal Feed Science and Technology 76(3-4): 251-264. {a} DLO Inst. Anim. Sci. Health, Dep. Ruminant Nutr., P.O. Box 65, NL-8200 AB Lelystad, Netherlands

Cook, R., K. A. Mizen, et al. (1999). Resistance in ryegrasses, Lolium spp., to three European populations of the root-knot nematode, Meloidogyne naasi. Nematology . Oct. 1(6): 661-671. {a} Institute of Grassland and Environmental Research, Aberystwyth, SY23 3EB, UK

Dalley, D. E., J. R. Roche, et al. (1999). Dry matter intake, nutrient selection and milk production of dairy cows grazing rainfed perennial pastures at different herbage allowances in spring. Australian Journal of Experimental Agriculture 39(8): 923-931. {a} Agriculture Victoria Ellinbank, Department of Natural Resources and Environment, Hazeldean Road, RMB 2460, Ellinbank, Vic., 3821, Australia

Dalton, S. J., A. J. E. Bettany, et al. (1999). Co-transformed, diploid Lolium perenne (perennial ryegrass), Lolium multiflorum (Italian ryegrass) and Lolium temulentum (darnel) plants produced by microprojectile bombardment. Plant Cell Reports. May 18(9): 721-726. {a} Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth, Ceredigion, SY23 3 EB, UK

Davey, P. A., A. J. Parsons, et al. (1999). Does photosynthetic acclimation to elevated CO2 increase photosynthetic nitrogen-use efficiency? A study of three native UK grassland species in open-top chambers. Functional Ecology. June 13(Suppl. 1): 21-28. {a} Departments of Crop Sciences and Plant Biology, 190 Edward R. Madigan Laboratory, University of Illinois, 1201 West Gregory Drive, Urbana, IL, 61801, USA

Dawson, L. E. R., C. P. Ferris, et al. (1999). The effects of wilting grass before ensiling on silage intake. Grass and Forage Science. Sept. 54(3): 237-247. {a} Agricultural Research Institute of Northern Ireland, Hillsborough, County Down, BT26 6DR, UK

Deckmyn, G. and I. Impens (1999). Seasonal responses of six Poaceae to differential levels of solar UV-B radiation. Environmental and Experimental Botany 41(2): 177-184. {a} Laboratory of Plant Ecology, University of Antwerp UIA, Universiteitsplein 1, 2610, Antwerp, Belgium

Delagarde, R., J. P. Caudal, et al. (1999). Development of an automatic bitemeter for grazing cattle. Annales de Zootechnie Paris. Sept. Oct. 48(5): 329-339. {a} Station de recherches sur la vache laitiere, Inra, 35590, Saint-Gilles, France

Delozier, V., D. Peltier, et al. (1999). Development of SCARs useful for species identification in the genus Lolium. Agronomie Paris. Feb. 19(2): 145-153. {a} Groupe de biochimie et de biologie moleculaire vegetales, laboratoire de genetique, U.F.R. sciences, 2, bd Lavoisier, 49045, Angers cedex, France

Di, H. J., K. C. Cameron, et al. (1999). Contributions to nitrogen leaching and pasture uptake by autumn-applied dairy effluent and ammonium fertilizer labeled with 15N isotope. Plant and Soil 210(2): 189-198. {a} Centre for Soil and Environmental Quality, Lincoln University, Canterbury, New Zealand

Dinelli, G. and C. Lucchese (1999). Comparison between capillary and polyacrylamide gel electrophoresis for identification of Lolium species and cultivars. Electrophoresis . Aug. 20(12): 2524-2532. {a} Department of Agronomy, University of Bologna, via Filippo Re 6/8, I-40126, Bologna, Italy

Eason, W. R., J. Scullion, et al. (1999). Soil parameters and plant responses associated with arbuscular mycorrhizas from contrasting grassland management regimes. Agriculture Ecosystems and Environment. May 73(3): 245-255. {a} Institute for Grassland and Environmental Research, Plas Goggerdan, Aberystwyth, SY23 3EB, UK

Eerens, J. P. J. (1999). A minimal effect of hydroponic culture of perennial ryegrass (Lolium perenne) plants on infection with the endophyte Neotyphodium lolii. New Zealand Journal of Agricultural Research. Dec. 42(4): 513-514. {a} Ruakura Agricultural Research Centre, AgResearch, Hamilton, New Zealand

Emoto, T. and H. Ikeda (1999). Appearance and development of tillers in herbage grass species: 1. Italian ryegrass (Lolium multiflorum Lam.) and perennial ryegrass (Lolium perenne L.). Grassland Science. Oct. 45(3): 210-216. {a} Akita Prefectural College of Agriculture, Ohgata-mura, Akita, 010-0444, Japan

Fahlbusch, B., W. D. Mueller, et al. (1999). Quantification of group 1 and group 5 allergens in extracts of several grass species. Allergologie . Aug. 22(8): 460-466. {a} Institut fuer Klinische Immunologie, Friedrich-Schiller-Universitaet, Am Johannisfriedhof 3, D-07740, Jena, Germany

Feng, Y., P. H. Dernoeden, et al. (1999). A simple Pythium aphanidermatum field inoculation technique for perennial ryegrass. Hortscience . April 34(2): 301-304. {a} Department of Natural Resource Sciences and Landscape Architecture, University of Maryland, College Park, MD, 20742-5821, USA

Fransen, B., J. Blijjenberg, et al. (1999). Root morphological and physiological plasticity of perennial grass species and the exploitation of spatial and temporal heterogeneous nutrient patches. Plant and Soil 211(2): 179-189. {a} Nature Conservation and Plant Ecology Group, Department of Environmental Sciences, Wageningen Agricultural University, Bornsesteeg 69, 6708 PD, Wageningen, Netherlands

Fraser, L. H. and J. P. Grime (1999). Aphid fitness on 13 grass species: A test of plant defence theory. Canadian Journal of Botany. Dec. 77(12): 1783-1789. {a} Department of Biology, University of Akron, Akron, OH, USA

Fraser, M. L., F. C. A. Rose, et al. (1999). Registration of 'Sonata' perennial ryegrass. Crop Science. Sept. Oct. 39(5). {a} Pure Seed Testing, Inc., Rolesville, NC, 27571, USA

Frost, J. P. and R. C. Binnie (1999). The effect of mechanical treatment on the drying rates of Italian and perennial ryegrasses. Grass and Forage Science. June 54(2): 144-154. {a} Agricultural Research Institute of Northern Ireland, Hillsborough, Down, BT26 6DR, UK

Galussi, A. A., L. R. Zimmermann, et al. (1999). Using seedlings hairiness to identify varieties of oats, rice and wheat. Seed Science and Technology 27(3): 1047-1050. {a} Facultad de Ciencias Agropecuarias, Universidad Nacional de Entre Rios, 3100, Parana, Entre Rios, Argentina

Garay, A. H., C. Matthew, et al. (1999). Tiller size/density compensation in perennial ryegrass miniature swards subject to differing defoliation heights and a proposed productivity index. Grass and Forage Science. Dec. 54(4): 347-356. {a} Programa de Ganaderia, Colegio de Postgraduados, Montecillo, Texcoco Edo. de Mexico, CP 56230, Mexico

Garnier, E., J. L. Salager, et al. (1999). Relationships between photosynthesis, nitrogen and leaf structure in 14 grass species and their dependence on the basis of expression. New Phytologist. July 143(1): 119-129. {a} Centre d'Ecologie Fonctionnelle et Evolutive (CNRS-UPR 9056), 1919, Route de Mende, 34293, Montpellier Cedex 5, France

Gatenby, W. A., F. S. C. Munday, et al. (1999). Terpendole M, a novel indole-diterpenoid isolated from Lolium perenne infected with the endophytic fungus Neotyphodium lolii. Journal of Agricultural and Food Chemistry 47(3): 1092-1097. {a} Ruakura Agricultural Research Centre, New Zealand Pastoral Agriculture Research Institute Ltd., Hamilton, New Zealand

Gautier, H., G. C. Varlet, et al. (1999). Tillering responses to the light environment and to defoliation in populations of perennial ryegrass (Lolium perenne L.) selected for contrasting leaf length. Annals of Botany London 83(4): 423-429. {a} Institut National de Recherche Agronomique (INRA)-Unite de Bioclimatologie, Domaine de St Paul, Site Agroparc, 84914, Avignon Cedex 9, France

Gorissen, A. and M. F. Cotrufo (1999). Elevated carbon dioxide effects on nitrogen dynamics in grasses, with emphasis on rhizosphere processes. Soil Science Society of America Journal. Nov. Dec. 63(6): 1695-1702. {a} Dep. of Soil Chemistry and Soil Ecology, Research Institute for Agrobiology and Soil Fertility (AB), 6700 AA, Wageningen, Netherlands

Guerrand, D., J. C. Avice, et al. (1999). Fructan biosynthesis in Lolium perenne: Appraisal of soluble and insoluble enzymatic pathways. New Phytologist 141(1): 109-118. {a} Laboratoire de Physiologie et Biochimie Vegetales, UA INRA, IRBA, Universite, 14032, Caen Cedex, France

Hahn, H. and W. Schoeberlein (1999). Characterization and identification of Festulolium hybrids by electrophoresis of seed proteins. Seed Science and Technology 27(2): 525-542. {a} Landwirtschaftliche Fakultaet, Lehrgebiet Saatgutwirtschaft, Martin-Luther-Universitaet Halle-Wittenberg, Institut fuer Acker- und Pflanzenbau, Emil-Abderhalden-Str. 27, 06108, Halle, Germany

Haigh, P. M. (1999). Effluent production from grass silages treated with additives and made in large-scale bunker silos. Grass and Forage Science. Sept. 54(3): 208-218. {a} Pwllpeiran Research Centre, ADAS, Cwmystwyth, Aberystwyth, Ceredigion, SY23 4AB, UK

Hartikainen, H. and T. Xue (1999). The promotive effect of selenium on plant growth as triggered by ultraviolet irradiation. Journal of Environmental Quality. July Aug 28(4): 1372-1375. {a} Dep. of Applied Chemistry and Microbiology, Univ. of Helsinki, 00014, Helsinki, Finland

Haugland, E. and W. R. J. Froud (1999). Improving grasslands: The influence of soil moisture and nitrogen fertilization on the establishment of seedlings. Journal of Applied Ecology. April 36(2): 263-270. {a} Department of Herbology, Norwegian Crop Research Institute, Plant Protection Centre, 1432, Aas, Norway

Haynes, R. J. (1999). Labile organic matter fractions and aggregate stability under short-term, grass-based leys. Soil Biology and Biochemistry. Nov. 31(13): 1821-1830. {a} Department of Agronomy, University of Natal, Scottsville, Pietermaritzburg, 3209, South Africa

Heidenreich, S. C., M. Kruse, et al. (1999). Verification of perennial ryegrass blends (Lolium perenne L.) using bulk seed storage protein electrophoresis. Plant Varieties and Seeds. April 12(1): 1-9. {a} Institut fuer Pflanzenzuechtung, Saatgutforschung und Populationsgenetik (350), Universitaet Hohenheim, D-70593, Stuttgart, Germany

Hesse, U. and G. C. M. Latch (1999). Influence of Neotyphodium lolii and barley yellow dwarf virus, individually and combined, on the growth of Lolium perenne. Australasian Plant Pathology 28(3): 240-247. {a} Institut fuer Acker und Pflanzenbau, Lehrgebiet Saatgutwirtschaft, Martin-Luther-Universitaet Halle-Wittenberg, 06099, Halle, Germany

Hodge, A., D. Robinson, et al. (1999). Why plants bother: Root proliferation results in increased nitrogen capture from an organic patch when two grasses compete. Plant Cell and Environment. July 22(7): 811-820. {a} Department of Biology, University of York, York, YO10 5YW, UK

Hodge, A., D. Robinson, et al. (1999). Nitrogen capture by plants grown in N-rich organic patches of contrasting size and strength. Journal of Experimental Botany. July 50(336): 1243-1252. {a} Department of Biology, The University of York, York, YO10 5YW, UK

Hodge, A., J. Stewart, et al. (1999). Plant, soil fauna and microbial responses to N-rich organic patches of contrasting temporal availability. Soil Biology and Biochemistry. Oct. 31(11): 1517-1530. {a} Department of Biology, University of York, York, YO10 5YW, UK

Hopper, J. L. and D. R. Parker (1999). Plant availability of selenite and selenate as influenced by the competing ions phosphate and sulfate. Plant and Soil 210(2): 199-207. {a} Soil and Water Sciences Section, Department of Environmental Sciences, University of California, Riverside, CA, USA

Hoskin, S. O., T. N. Barry, et al. (1999). Effects of reducing anthelmintic input upon growth and faecal egg and larval counts in young farmed deer grazing chicory (Cichorium intybus) and perennial ryegrass (Lolium perenne)/white clover (Trifolium repens) pasture. Journal of Agricultural Science. May 132(3): 335-345. {a} Institute for Food, Nutrition and Human Health, Massey University, Palmerston North, New Zealand

Hoskin, S. O., T. N. Barry, et al. (1999). Growth and carcass production of young farmed deer grazing sulla (Hedysarum coronarium), chicory (Cichorium intybus), or perennial ryegrass (Lolium perenne)/white clover (Trifolium repens) pasture in New Zealand. New Zealand Journal of Agricultural Research. March 42(1): 83-92. {a} Institute of Food Nutrition and Human Health, Massey University, Palmerston North, New Zealand

Hsiang, T., N. Matsumoto, et al. (1999). Biology and management of typhula snow molds of turfgrass. Plant Disease. Sept. 83(9): 788-798. {a} University of Guelph, Guelph, ON, Canada

Ide, Y., H. Hayashi, et al. (1999). Effect of dissemination of seeds along with cattle dung on the propagation of Kentucky bluegrass (Poa pratensis L.). 1. Recovery and viability of seeds passaged through digestive tract of cattle. Grassland Science. July 45(2): 157-162. {a} Chugoku National Agricultural Experiment Station, Kawai, Oda, Shimane, 694-0013, Japan

Jensen, B., P. Sorensen, et al. (1999). Availability of nitrogen in 15N-labeled ruminant manure components to successively grown crops. Soil Science Society of America Journal. March April 63(2): 416-423. {a} Dep. of Plant Physiology and Soil Science, Res. Ctr. Foulum, Danish Inst. Agric. Sciences, DK-8830, Tjele, Denmark

Jorgensen, F. V., E. S. Jensen, et al. (1999). Dinitrogen fixation in white clover grown in pure stand and mixture with ryegrass estimated by the immobilized 15N isotope dilution method. Plant and Soil. July 208(2): 293-305. {a} Department of Economics and Natural Resources, The Royal Veterinary and Agricultural University, Kirkegardsvej 3A, DK-2970, Horsholm, Denmark

Kennedy, P. M., J. B. Lowry, et al. (1999). Isolation of grass cell walls as neutral detergent fibre increases their fermentability for rumen micro-organisms. Journal of the Science of Food and Agriculture. March 79(4): 544-548. {a} CSIRO Tropical Agriculture, PO Indooroopilly, QLD, 4068, Australia

Kerley, S. J. and S. C. Jarvis (1999). The use of nitrogen-15 natural abundance in white clover (Trifolium repens L.) to determine nitrogen fixation under different management practices. Biology and Fertility of Soils. Aug. 29(4): 437-440. {a} IACR Rothamsted, Harpenden Herts, AL5 2JQ, UK

Kimbeng, C. A. (1999). Genetic basis of crown rust resistance in perennial ryegrass, breeding strategies, and genetic variation among pathogen populations: A review. Australian Journal of Experimental Agriculture 39(3): 361-378. {a} Bureau of Sugar Experiment Stations, Mackay, Qld, 4741, Australia

Kinder, M. and I. Vagts (1999). Estuarine salt marsh vegetation and brackish reeds of the Weser-Estuary. Abhandlungen Naturwissenschaftlichen Verein zu Bremen. [print] 44(2-3): 523-544. {a} Abt. Geobotanik und Naturschutz, Fachbereich 2: Biologie/Chemie, Institut fuer Oekologie und Evolutionsbiologie, Universitaet Bremen, D - 28334, Bremen, Germany

King, I. P., W. G. Morgan, et al. (1999). Introgression mapping in the grasses. II. Meiotic analysis of the Lolium perenne/Festuca pratensis triploid hybrid. Heredity 82(1): 107-112. {a} Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth, Ceredigion, Wales, SY23 3EB, UK

Kolliker, R., F. J. Stadelmann, et al. (1999). Genetic variability of forage grass cultivars: A comparison of Festuca pratensis Huds., Lolium perenne L., and Dactylis glomerata L. Euphytica 106(3): 261-270. {a} Institute of Plant Sciences, Swiss Federal Institute of Technology, CH-8092, Zurich, Switzerland

Krebs, R., S. K. Gupta, et al. (1999). Gravel sludge as an immobilizing agent in soils contaminated by heavy metals: A field study. Water Air and Soil Pollution. Oct. 115(1-4): 465-479. {a} Institute of Environmental Protection and Agriculture Liebefeld (IUL), Swiss Federal Research Station for Agroecology and Agriculture (FAL), CH-3003, Bern, Switzerland

Kubik, C., W. A. Meyer, et al. (1999). Assessing the abundance and polymorphism of simple sequence repeats in perennial ryegrass. Crop Science. July Aug 39(4): 1136-1141. {a} Dep. of Ecology and Evolutionary Biology, University of California, Irvine, 321 Steinhaus Hall, Irvine, CA, 92697-2525, USA

Kulli, B., M. Balmer, et al. (1999). The influence of nitrilotriacetate on heavy metal uptake of lettuce and ryegrass. Journal of Environmental Quality. Nov. Dec. 28(6): 1699-1705. {a} Inst. of Terrestrial Ecology (ITO), ETH Zurich, Grabenstr. 3, CH-8952, Schlieren, Switzerland

Kuzyakov, Y., A. Kretzschmar, et al. (1999). Contribution of Lolium perenne rhizodeposition to carbon turnover of pasture soil. Plant and Soil 213(1-2): 127-136. {a} Institute of Soil Science and Land Evaluation, University of Hohenheim, Emil-Wolff-Strasse 27, D-70599, Stuttgart, Germany

Lantinga, E. A., P. J. A. G. Deenen, et al. (1999). Herbage and animal production responses to fertilizer nitrogen in perennial ryegrass swards. II. Rotational grazing and cutting. Netherlands Journal of Agricultural Science. [print] December 47(3-4): 243-261. {a} Group of Biological Farming Systems, Wageningen University, Marijkeweg 22, NL-6709 PG, Wageningen, Netherlands

Lantinga, E. A., M. Nassiri, et al. (1999). Modelling and measuring vertical light absorption within grass-clover mixtures. Agricultural and Forest Meteorology. Aug. 96(1-3): 71-83. {a} C.T. De Wit Graduate School for Production Ecology (PE), Laboratory of Theoretical Production Ecology, Wageningen Agricultural University, 6700 AK, Wageningen, Netherlands

Lepiece, D., A. Thompson, et al. (1999). Florasulam Primus, a new selective herbicide for the control of broad-leaved weeds in young grass. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent. [print] 64(3b): 693-712. {a} Dow AgroSciences, B-2610, Wilrijk, Belgium

Lewis, G. C. and R. O. Clements (1999). Effect of combined insecticide and fungicide treatments on newly sown swards of Italian and perennial ryegrass using two methods of sowing, two rates of seed and N fertilizer, with and without herbicide. Grass and Forage Science. June 54(2): 155-162. {a} North Wyke Research Station, Institute of Grassland and Environmental Research, Okehampton, Devon, EX20 2SB, UK

Lingvall, P. and P. Lattemae (1999). Influence of hexamine and sodium nitrite in combination with sodium benzoate and sodium propionate on fermentation and hygienic quality of wilted and long cut grass silage. Journal of the Science of Food and Agriculture 79(2): 257-264. {a} Dep. Animal Nutr. Management, Swedish Univ. Agric. Sci., Kungsangen Res. Centre, 753 23 Uppsala, Sweden

Logan, K. A. B. and R. J. Thomas (1999). Interactions between N supply and N uptake by perennial ryegrass, 15N recovery and soil pH for four acid Scottish soils. Grass and Forage Science. March 54(1): 42-51. {a} CIAT, Cali, Colombia

Loiseau, P. and J. F. Soussana (1999). Elevated (CO2), temperature increase and N supply effects on the accumulation of below-ground carbon in a temperate grassland ecosystem. Plant and Soil 212(2): 123-134. {a} Fonctionnement et Gestion de l'Ecosysteme Prairial, INRA-Agronomie, 234, Av. du Brezet, F-63039, Clermont-Ferrand, Cedex 2, France

Loiseau, P. and J. F. Soussana (1999). Elevated (CO2), temperature increase and N supply effects on the turnover of below-ground carbon in a temperate grassland ecosystem. Plant and Soil 210(2): 233-247. {a} Fonctionnement et Gestion de l''Ecosysteme Prairial, Unite d''Agronomie, INRA, 234, Av. du Brezet, F-63039, Clermont-Ferrand Cedex, 2, France

Lomholt, A. (1999). A device measuring physiologically determined seed shedding in grasses. Seed Science and Technology 27(2): 791-794. {a} Research Centre, Danish Institute of Agricultural Sciences, Flakkebjerg, 4200, Slagelse, Denmark

Louahlia, S., J. H. Macduff, et al. (1999). Nitrogen reserve status affects the dynamics of nitrogen remobilization and mineral nitrogen uptake during recovery of contrasting cultivars of Lolium perenne from defoliation. New Phytologist. June 142(3): 451-462. {a} UA INRA 950 Physiologie et Biochimie Vegetales, Institut de Recherche en Biologie Appliquee, Universite, 14032, Caen Cedex, France

Lovborg, U., P. J. Baker, et al. (1999). Subtribe-specific monoclonal antibodies to Lolium perenne. Clinical and Experimental Allergy. July 29(7): 973-981. {a} Institute of Respiratory Medicine, University of Sydney, Room 461 Blackburn Building (D06), Sydney, NSW, 2006, Australia

Lowe, K. F., T. M. Bowdler, et al. (1999). Performance of temperate perennial pastures in the Australian subtropics. 2. Milk production. Australian Journal of Experimental Agriculture 39(6): 677-683. {a} Department of Primary Industries, Mutdapilly Research Station, Australian Tropical Dairy Institute, Ipswich, QLD, 4306, Australia

Lowe, K. F., T. M. Bowdler, et al. (1999). Performance of temperate perennial pastures in the Australian subtropics. 1. Yield, persistence and pasture quality. Australian Journal of Experimental Agriculture 39(6): 663-676. {a} Department of Primary Industries, Mutdapilly Research Station, Australian Tropical Dairy Institute, Ipswich, QLD, 4306, Australia

Lucero, D. W., P. Grieu, et al. (1999). Effects of water deficit and plant interaction on morphological growth parameters and yield of white clover (Trifolium repens L.) and ryegrass (Lolium perenne L.) mixtures. European Journal of Agronomy. Nov. 11(3-4): 167-177. {a} Unite associee, Agronomie et Environnement, INRA, ENSAIA, 2 Avenue de la Foret de Haye, F-54500, Vandoeuvre-les-Nancy, France

Mackie, D. L. A. (1999). Nitrogen uptake and root morphological responses of defoliated Lolium perenne (L.) to a heterogeneous nitrogen supply. Plant and Soil 209(1): 111-118. {a} Macaulay Land Use Research Institute, Craigiebuckler, Aberdeen, UK

Magid, J., C. Kjaergaard, et al. (1999). Drying and rewetting of a loamy sand soil did not increase the turnover of native organic matter, but retarded the decomposition of added 14C-labelled plant material. Soil Biology and Biochemistry 31(4): 595-602. {a} Department of Agricultural Sciences, Royal Veterinary and Agricultural University (KVL), Copenhagen, DK 1871 FC, Denmark

Manderscheid, R., J. Bender, et al. (1999). Long term effects of various atmospheric carbon dioxide concentrations on physiology, growth, yield, and quality of crop plants. Berichte ueber Landwirtschaft. March 77(1): 117-120. {a} Braunschweig, Germany

Marilley, L., U. A. Hartwig, et al. (1999). Influence of an elevated atmospheric CO2 content on soil and rhizosphere bacterial communities beneath Lolium perenne and Trifolium repens under field conditions. Microbial Ecology. July 38(1): 39-49. {a} GSF-National Research Center, Institute of Soil Ecology, Ingolstaedter Landstrasse 1, D-85758, Oberschleissheim, Germany

Marriott, C. A., G. T. Barthram, et al. (1999). Seasonal dynamics of leaf extension and losses to senescence and herbivory in extensively managed sown ryegrass-white clover swards. Journal of Agricultural Science 132(1): 77-89. {a} Macaulay Land Use Research Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK

Matsi, T. and V. Z. Keramidas (1999). Fly ash application on two acid soils and its effect on soil salinity pH, B, P and on ryegrass growth and composition. Environmental Pollution 104(1): 107-112. {a} Soil Sci. Lab., Aristotle Univ., Thessaloniki 54006, Greece

Matthies, D. and P. Egli (1999). Response of a root hemiparasite to elevated CO2 depends on host type and soil nutrients. Oecologia Berlin. July 120(1): 156-161. {a} Institut fur Umweltwissenschaften, Universitat Zurich, Winterthurerstr. 190, CH-8057, Zurich, Switzerland

Mazur, A. R. and J. S. Rice (1999). Impact of overseeding bermudagrass with various amounts of perennial ryegrass for winter putting turf. Hortscience . Aug. 34(5): 864-866. {a} Department of Crop and Soil Environmental Science, Clemson University, Clemson, SC, 29634-0359, USA

McGilloway, D. A., A. Cushnahan, et al. (1999). The relationship between level of sward height reduction in a rotationally grazed sward and short-term intake rates of dairy cows. Grass and Forage Science. June 54(2): 116-126. {a} Grange Research Centre, Teagasc, Dunsany, Meath, Ireland

McKenzie, F. R., J. L. Jacobs, et al. (1999). Effect of rate and time of nitrogen application from autumn to midwinter on perennial ryegrass-white clover dairy pastures in western Victoria. 2. Pasture nutritive value. Australian Journal of Agricultural Research 50(6): 1067-1072. {a} Department of Natural Resources and Environment, 78 Henna Street, Warrnambool, Vic., 3280, Australia

McKenzie, F. R., M. J. Ryan, et al. (1999). Effect of rate and time of nitrogen application from autumn to midwinter on perennial ryegrass-white clover dairy pastures in western Victoria. 1. Growth and composition. Australian Journal of Agricultural Research 50(6): 1059-1065. {a} Department of Natural Resources and Environment, 78 Henna Street, Warrnambool, Vic., 3280, Australia

Min, B. R., W. C. McNabb, et al. (1999). The effect of condensed tannins in Lotus corniculatus upon reproductive efficiency and wool production in sheep during late summer and autumn. Journal of Agricultural Science. May 132(3): 323-334. {a} Institute for Food, Nutrition and Human Health, Massey University, Palmerston North, New Zealand

Mora, M. L., B. Schnettler, et al. (1999). Effect of liming and gypsum on soil chemistry, yield, and mineral composition of ryegrass grown in an acidic Andisol. Communications in Soil Science and Plant Analysis. May 30(9-10): 1251-1266. {a} Instituto de Agroindustria, Universidad de La Frontera, Casilla 54-D, Temuco, Chile

Morvan, B. A., J. Boucaud, et al. (1999). Influence of initial levels of carbohydrates, fructans, nitrogen, and soluble proteins on regrowth of Lolium perenne L. cv. Bravo following defoliation. Journal of Experimental Botany. [print] Dec 50(341): 1817-1826. {a} U.A. INRA Physiologie et Biochimie Vegetales, Institut de Biologie en Recherche Appliquee, Universite Esplanade de la Paix, 14032, Caen Cedex, France

Morvan, B. A., N. Pavis, et al. (1999). Partitioning of reserve and newly assimilated carbon in roots and leaf tissues of Lolium perenne during regrowth after defoliation: Assessment by 13C steady-state labelling and carbohydrate analysis. Plant Cell and Environment. Sept. 22(9): 1097-1108. {a} U.A.INRA Physiologie et Biochimie Vegetales, IRBA, Universite, Esplanade de la Paix, 14032, Caen, Cedex, France

Mosquera, L. R. and R. A. Gonzalez (1999). Pasture production in Northern Spain dairy systems. New Zealand Journal of Agricultural Research. June 42(2): 125-132. {a} Departamento de Produccion Vegetal Escuela Politecnica Superior de Ingenieros Agronomos, Universidade de Santiago de Compostela, Campus de Lugo, 27002, Lugo, Spain

Mosquera, M. R. and R. A. Gonzalez (1999). Management effect on sward evolution in dairy systems. Investigacion Agraria Produccion y Proteccion Vegetales. [print] 14(1-2): 101-106. {a} Escuela Politecnica Superior, Universidad de Santiago de Compostela, Campus de Lugo, 27002, Lugo, Spain

Naffaa, W., C. Astier, et al. (1999). Creation of stable associations between perennial ryegrass or tall fescue and fungal endophytes. Agronomie Paris. Feb. 19(2): 133-144. {a} Unite de pathologie vegetale et mycologie, centre de Clermont-Ferrand, Inra, 234, avenue du Brezet, 63039, Clermont-Ferrand cedex, 02, France

Naffaa, W., C. Ravel, et al. (1999). Peroxidase activity of perennial ryegrass and tall fescue seedlings artificially infected with endophytes. Agronomie Paris. Oct. Nov. 19(7): 611-619. {a} Unite de pathologie vegetale et mycologie, Inra, 234, avenue du Brezet, 63039, Clermont-Ferrand cedex, 02, France

Neilson, R. and D. J. F. Brown (1999). Feeding on different host plants alters the natural abundances of delta13C and delta15N in Longidoridae (Nemata). Journal of Nematology. March 31(1): 20-26. {a} Nematology Unit, Scottish Crop Research Institute, Dundee, DD2 5DA, UK

Nie, Z. N., D. J. Barker, et al. (1999). Changes in the population of germinated seed in a hill pasture during and after a pastoral fallow. Grass and Forage Science. June 54(2): 127-136. {a} Department of Animal Production (Glenormiston), University of Melbourne, Terang, VIC, 3264, Australia

Norton, L. R., L. G. Firbank, et al. (1999). Effects of Free-Air CO2 Enrichment (FACE) on experimental grassland communities. Functional Ecology. June 13(Suppl. 1): 38-44. {a} School of Biological Sciences, University of East Anglia, Norwich, Norfolk, NR4 7TJ, UK

Nsereko, V. L. and J. A. Rooke (1999). Effects of peptidase inhibitors and other additives on fermentation and nitrogen distribution in perennial ryegrass silage. Journal of the Science of Food and Agriculture. April 79(5): 679-686. {a} Animal Biology Division, SAC, Craibstone Estate, Aberdeen, AB21 9YA, UK

O, D. C. and P. M. Attiwill (1999). A comparative study of habitats of the Golden Sun Moth Synemon plana Walker (Lepidoptera: Castniidae): Implications for restoration. Biological Conservation. July 89(2): 131-141. {a} Conservation and Research Department, Zoological Parks and Gardens Board, Elliott Ave, Parkville, VIC, 3052, Australia

Oertel, C. and F. Matzk (1999). Introgression of crown rust resistance from Festuca spp. into Lolium multiflorum. Plant Breeding. Dec. 118(6): 491-496. {a} Institut fuer Pflanzengenetik und Kulturpflanzenforschung (IPK), Corrensstrasse 3, D-06466, Gatersleben, Germany

Oklejewicz, K. (1999). A locality for Artemisia biennis (Asteraceae) in Rzeszow (south-eastern Poland). Fragmenta Floristica et Geobotanica Series Polonica 6: 297. {a} Zaklad Przyrodniczych Podstaw Produkcji Rolniczej, Akademia Rolnicza im. H. Kollataja w krakowie, Wydzial Ekonomii w Rzeszowie, ul. Cwiklinskiej 2, PL-35-601, Rzeszow, Poland

Okora, J. O., C. E. Watson, et al. (1999). Comparison of botanical characteristics and seedling root fluorescence for distinguishing Italian and perennial ryegrass. Seed Science and Technology 27(2): 721-730. {a} Mississippi Agricultural and Forestry Experiment Station, Mississippi State, MS, 39762, USA

Oyedele, D. J., P. Schjonning, et al. (1999). Aggregation and organic matter fractions of three Nigerian soils as affected by soil disturbance and incorporation of plant material. Soil and Tillage Research. March 50(2): 105-114. {a} Department of Crop Physiology and Soil Science, Research Centre Foulum, Danish Institute of Agricultural Sciences, DK-8830, Tjele, Denmark

Paterson, E. and A. Sim (1999). Rhizodeposition and C-partitioning of Lolium perenne in axenic culture affected by nitrogen supply and defoliation. Plant and Soil 216(1-2): 155-164. {a} Plants Group, The Macaulay Land Use Research Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK

Pfender, W. F. and S. S. Vollmer (1999). Freezing temperature effect on survival of Puccinia graminis subsp. graminicola in Festuca arundinacea and Lolium perenne. Plant Disease. Nov. 83(11): 1058-1062. {a} National Forage Seed Production Research Center, USDA-ARS, 3450 S.W. Campus Way, Corvallis, OR, 97331, USA

Pillard, D. A. and D. L. DuFresne (1999). Toxicity of formulated glycol deicers and ethylene and propylene glycol to Lactuca sativa, Lolium perenne, Selenastrum capricornutum, and Lemna minor. Archives of Environmental Contamination and Toxicology. July 37(1): 29-35. {a} ENSR, 4303 West LaPorte Ave., Fort Collins, CO, 80521, USA

Raistrick, N. (1999). An automated relative-addition rate nutrient-dosing system for use in flowing solution culture. Journal of Experimental Botany 50(331): 263-267. {a} Inst. Grassland Environ. Res., Aberystwyth Res. Cent., Plas Gogerddan, Aberystwyth SY23 3EB, UK

Ravel, C., F. Balfourier, et al. (1999). Enhancement of yield and persistence of perennial ryegrass inoculated with one endophyte isolate in France. Agronomie Paris. Oct. Nov. 19(7): 635-644. {a} Unite d'amelioration des plantes, Inra, 234 avenue du Brezet, 63039, Clermont-Ferrand cedex, 02, France

Realini, C. E., J. Hodgson, et al. (1999). Effect of sward surface height on herbage intake and performance of finishing beef cattle. New Zealand Journal of Agricultural Research. June 42(2): 155-164. {a} Institute of Natural Resources, Massey University, Palmerston North, New Zealand

Reicher, Z. J., D. V. Weisenberger, et al. (1999). Turf safety and effectiveness of dithiopyr and quinclorac for large crabgrass (Digitaria sanguinalis) control in spring-seeded turf. Weed Technology. April June 13(2): 253-256. {a} Department of Agronomy, Purdue University, 1150 Lilly Hall, West Lafayette, IN, 47907-1150, USA

Reverter, M., T. Lundh, et al. (1999). Ileal amino acid digestibilities in pigs of barley-based diets with inclusion of lucerne (Medicago sativa), white clover (Trifolium repens), red clover (Trifolium pratense) or perennial ryegrass (Lolium perenne). British Journal of Nutrition. Aug. 82(2): 139-147. {a} Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, S-750 07, Uppsala, Sweden

Richmond, D. S. and D. J. Shetlar (1999). Larval survival and movement of bluegrass webworm in mixed stands of endophytic perennial ryegrass and Kentucky bluegrass. Journal of Economic Entomology. Dec. 92(6): 1329-1334. {a} Department of Entomology, Ohio State University, OARDC, Wooster, OH, USA

Robinson, D., A. Hodge, et al. (1999). Plant root proliferation in nitrogen-rich patches confers competitive advantage. Proceedings of the Royal Society of London Series B 266(1418): 431-435. {a} Cellular and Environmental Physiology Department, Scottish Crop Research Institute, Dundee, DD2 5DA, UK

Rodriguez, D., O. M. Van, et al. (1999). LINGRA-CC: A sink-source model to simulate the impact of climate change and management on grassland productivity. New Phytologist. Nov. 144(2): 359-368. {a} Laboratory of Theoretical Production Ecology, 6700AK, Wageningen, Netherlands

Roehricht, W. and T. Peschel (1999). Sheep fescue-rich turf grasses in Berlin and Brandenburg. Verhandlungen des Botanischen Vereins von Berlin und Brandenburg. [print] 132: 253-266. {a} Strasse 43 Nr. 48, D-13125, Berlin, Germany

Rothwell, N. L. and D. R. Smitley (1999). Impact of golf course mowing practices on Ataenius spretulus (Coleoptera: Scarabaeidae) and its natural enemies. Environmental Entomology. June 28(3): 358-366. {a} Department of Entomology, University of Massachusetts, Fernald Hall, Amherst, MA, 01003, USA

Runge, F. (1999). Succession of some plant societies at the island Baltrum. Abhandlungen Naturwissenschaftlichen Verein zu Bremen. [print] 44(2-3): 545-549. {a} Diesterwegstr. 63, D - 48159, Muenster, Germany

Ryan, M. and J. Ash (1999). Effects of phosphorus and nitrogen on growth of pasture plants and VAM fungi in SE Australian soils with contrasting fertiliser histories (conventional and biodynamic). Agriculture Ecosystems and Environment 73(1): 51-62. {a} CSIRO Plant Industry, Canberra, ACT, 2601, Australia

Saito, M. (1999). Mycorrhizal symbiosis in grassland ecosystem. Japanese Journal of Ecology Otsu. Aug. 49(2): 139-144. {a} National Grassland Research Institute, Nishi-nasuno, Tochigi, 329-2793, Japan

Salaun, C., S. W. M. van, et al. (1999). In situ degradation of perennial rye grass from grazed pastures during the season at two levels of nitrogen fertilization. Annales de Zootechnie Paris. Jan. Feb. 48(1): 35-46. {a} Department of Ruminant Nutrition, DLO-Institute for Animal Science and Health, 8200 AB, Lelystad, Netherlands

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Schnyder, H. and V. R. de (1999). Fluxes of reserve-derived and currently assimilated carbon and nitrogen in perennial ryegrass recovering from defoliation. The regrowing tiller and its component functionally distinct zones. Plant Physiology Rockville. April 119(4): 1423-1435. {a} Technische Universitaet Muenchen, D-85350, Freising-Weihenstephan, Germany

Scholefield, D., R. D. Sheldrick, et al. (1999). A comparison of triple superphosphate and Gafsa ground rock phosphate fertilisers as P-sources for grass-clover swards on a poorly-drained acid clay soil. Nutrient Cycling in Agroecosystems 53(2): 147-155. Institute Grassland, Environmental Research, North Wyke Research Station, Okehampton, Devon, EX20 2SB, UK

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Shiel, R. S., T. A. M. A. El, et al. (1999). The influence of fertilizer nitrogen, white clover content and environmental factors on the nitrate content of perennial ryegrass and ryegrass/white clover swards. Grass and Forage Science. Sept. 54(3): 275-285. {a} Agriculture Department, University of Newcastle, Newcastle upon Tyne, NE1 7RU, UK

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Staff, I. A., G. Schappi, et al. (1999). Localisation of allergens in ryegrass pollen and in airborne micronic particles. Protoplasma 208(1-4): 47-57. {a} School of Botany, The University of Melbourne, Parkville, VIC, 3052, Australia

Stenberg, M., H. Aronsson, et al. (1999). Soil mineral nitrogen and nitrate leaching losses in soil tillage systems combined with a catch crop. Soil and Tillage Research. March 50(2): 115-125. {a} Department of Soil Sciences, Division of Soil Management, Swedish University of Agricultural Sciences, S-750 07, Uppsala, Sweden

Stewart, D. P. C. and A. K. Metherell (1999). Carbon (13C) uptake and allocation in pasture plants following field pulse-labelling. Plant and Soil 210(1): 61-73. {a} AgResearch, c/- Soil and Physical Sciences, Lincoln University, Canterbury, New Zealand

Stockdale, C. R. (1999). Effect of length of the period of supplementation with concentrates on pasture intake and performance of grazing dairy cows. Australian Journal of Experimental Agriculture 39(7): 803-809. {a} Department of Natural Resources and Environment, Kyabram Dairy Centre, Institute of Sustainable Irrigated Agriculture, 120 Cooma Road, Kyabram, VIC, 3620, Australia

Stockdale, C. R. (1999). Effects of season and time since defoliation on the nutritive characteristics of three irrigated perennial pasture species in northern Victoria 2. Macro-minerals. Australian Journal of Experimental Agriculture 39(5): 567-577. {a} Department of Natural Resources and Environment, Institute of Sustainable Irrigated Agriculture, 120 Cooma Road, Kyabram Dairy Centre, Kyabram, VIC, 3620, Australia

Stockdale, C. R. (1999). Effects of season and time since defoliation on the nutritive characteristics of three irrigated perennial pasture species in northern Victoria 1. Energy, protein and fibre. Australian Journal of Experimental Agriculture 39(5): 555-565. {a} Department of Natural Resources and Environment, Institute of Sustainable Irrigated Agriculture, 120 Cooma Road, Kyabram Dairy Centre, Kyabram, VIC, 3620, Australia

Sugiyama, S. (1999). Genetic variation in the relative dominance of mixed swards: Potential influence and its mechanism. Grassland Science. Jan. 44(4): 303-309. {a} Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, 036-8561, Japan

Suphioglu, C., D. Mawdsley, et al. (1999). Molecular cloning, expression and immunological characterisation of Lol p 5C, a novel allergen isoform of rye grass pollen demonstrating high IgE reactivity. FEBS Letters. Dec. 462(3): 435-441. {a} Department of Allergy, Asthma and Clinical Immunology, Monash University Medical School, Alfred Hospital, Commercial Road, Prahran, VIC, Australia

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Vierheilig, H., A. Boeckenhoff, et al. (1999). In vivo observations of the arbuscular mycorrhizal fungus Glomus mosseae in roots by confocal laser scanning microscopy. Mycological Research. March 103(3): 311-314. {a} Institut fuer Phytopathologie, Christian-Albrecht-Universitaet Kiel, Hermann Rodewald-Strasse 9, 24118, Kiel, Germany

Wales, W. J., P. T. Doyle, et al. (1999). Effects of variations in herbage mass, allowance, and level of supplement on nutrient intake and milk production of dairy cows in spring and summer. Australian Journal of Experimental Agriculture 39(2): 119-130. {a} Department of Natural Resources and Environment, Kyabram Dairy Centre, Institute of Sustainable Irrigated Agriculture, 120 Cooma Road, Kyabram, Vic., 3620, Australia

Waller, R. A., P. W. G. Sale, et al. (1999). Tactical versus continuous stocking for persistence of perennial ryegrass (Lolium perenne L.) in pastures grazed by sheep in south-western Victoria. Australian Journal of Experimental Agriculture 39(3): 265-274. {a} Pastoral and Veterinary Institute, Agriculture Victoria, Hamilton, Vic., 3300, Australia

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Wivstad, M. (1999). Nitrogen mineralization and crop uptake of N from decomposing 15N labelled red clover and yellow sweetclover plant fractions of different age. Plant and Soil 208(1): 21-31. {a} Department of Crop Production Science, Swedish University of Agricultural Sciences, S-750 07, Uppsala, Sweden

Yamashita, M., H. Sawada, et al. (1999). Genetic diversity of perennial ryegrass (Lolium perenne L.) collected from Japan, France and Germany. Grassland Science. Oct. 45(3): 290-298. {a} Faculty of Agriculture, Shizuoka University, Shizuoka, 422-8529, Japan

Yilmaz, N., Z. Bayraktaroglu, et al. (1999). Efficiency of some in vitro allergy tests for evaluating atopy in children and adults. Clinical Chemistry and Laboratory Medicine. Oct. 37(10): 981-985. {a} Fevzi Cakmak P.K 1163, Sehitkamil, Gaziantep, Turkey

Young, W. C., III, M. E. Mellbye, et al. (1999). Residue management of perennial ryegrass and tall fescue seed crops. Agronomy Journal. July Aug 91(4): 671-675. {a} Dep. of Crop and Soil Science, Oregon State Univ., Corvallis, OR, 97331-3002, USA

Zeller, F. J. (1999). Gene transfer with the aid of genome and chromosome manipulations between Festuca and Lolium species. Journal of Applied Botany. May 73(1-2): 43-49. {a} Institut fuer Pflanzenbau und Pflanzenzuechtung, Technische Universitaet Muenchen, D-85350, Freising-Weihenstephan, Germany

Zubillaga, M. S. and L. Giuffre (1999). Soil phosphorus mobilization in different taxonomic orders. Journal of Plant Nutrition and Soil Science. April 162(2): 201-205. {a} Soils Department, Facultad de Agronomia, Universidad de Buenos Aires, Av. San Martin 4453, 1417, Buenos Aires, Argentina

Zygoyiannis, D., N. Katsaounis, et al. (1999). The use of nutritional management after weaning for the production of heavier lamb carcasses from Greek dairy breeds. Livestock Production Science 57(3): 279-289. {a} Animal Biol. Div., Scott. Agric. College, Bush Estate, Penicuik EH26 0QE, UK

Acosta, G., C. Cangiano, et al. (1998). Grazing and nitrogen fertilization effect on the growth and quality of perennial ryegrass (Lolium perenne). Investigacion Agraria Produccion y Proteccion Vegetales 13(1-2): 21-27. {a} Facultad Agronomia, Universidad Buenos Aires, Avda. San Martin 4453, 1417 Buenos Aires, Argentina

Allen, R. B. (1998). Germination, growth, reproduction, and population structure of three subspecies of Lepidium sisymbrioides (Brassicaceae) with respect to taxon rarity. New Zealand Journal of Botany 36(3): 439-452. {a} Landcare Res., Private Bag 1930, Dunedin, New Zealand

Allsopp, N. (1998). Effect of defoliation on the arbuscular mycorrhizas of three perennial pasture and rangeland grasses. Plant and Soil 202(1): 117-124. {a} ARC Range Forage Inst., c/o Botany Dep., Univ. Western Cape, Private Bag X17, Bellville 7535, South Africa

Askbrant, S. and J. Sandalls (1998). Root uptake of 137Cs and 90Sr by rye-grass on various soils in the CIS. Journal of Environmental Radioactivity 38(1): 85-95. {a} ALEGLO FOU, Sulitelmavaegen 22, 161 33 Bromma, Sweden

Aytasheva, Z. G. (1998). Green-house harvested ryegrass plants contain thioredoxin-like gene fragment in the pollen. Biotronics 27: 53-60. {a} Murat Aytkhozhin Institute of Molecular Biology and Biochemistry, 86 Dosmukhamedov st., Almaty, 480 012, Kazakhstan

Bailey, J. S. (1998). Varying the ratio of 15N-labelled ammonium and nitrate-N supplied to perennial ryegrass: Effects on nitrogen absorption and assimilation, and plant growth. New Phytologist 140(3): 505-518. {a} Dep. Agric. Northern Ireland, Agric. Environ. Sci. Div., Newforge Lane, Belfast BT9 5PX, UK

Bain, R. A., E. L. Raynor, et al. (1998). Effect of nitrogen on interactions between ryegrass mosaic virus (RMV) and Lolium species in mixed swards. Annals of Applied Biology 132(2): 313-324. {a} Plant Biol. Dep., SAC, Auchincruive, Ayr KA6 5HW, UK

Bakker, M. L., I. J. Gordon, et al. (1998). Effects of sward structure on the diet selected by guanacos (Lama guanicoe) and sheep (Ovis aries) grazing a perennial ryegrass-dominated sward. Grass and Forage Science 53(1): 19-30. {a} Macaulay Land Use Res. Inst., Craigiebuckler, Aberdeen AB15 8QH, UK

Balfourier, F., G. Charmet, et al. (1998). Comparison of different spatial strategies for sampling a core collection of natural populations of fodder crops. Genetics Selection Evolution Paris 30(Suppl. 1): S215-S235. {a} Inst. Natl. Recherche Agronomique, Stn. Amelioration Plantes, 234, avenue du Brezet, 63039 Clermont-Ferrand Cedex 2, France

Balfourier, F., G. Charmet, et al. (1998). Comparison of different spatial strategies for sampling a core collection of natural populations of fodder crops. Genetics Selection Evolution Paris 30(Suppl. 1): S215-S235. {a} Inst. Natl. Recherche Agronomique, Stn. Amelioration Plantes, 234, avenue du Brezet, 63039 Clermont-Ferrand Cedex 2, France

Balfourier, F., G. Charmet, et al. (1998). Genetic differentiation within and between natural populations of perennial and annual ryegrass (Lolium perenne and L. rigidum). Heredity 81(1): 100-110. {a} INRA, Station d'Ameliortain Plantes, 234 avenue Brezet, 63039 Clermont-Ferrand Cedex, France

Balzter, H., P. W. Braun, et al. (1998). Cellular automata models for vegetation dynamics. Ecological Modelling 107(2-3): 113-125. {a} Biometrie und Populationsgenet., Univ. Giessen, Ludwigstr. 27, D-35390 Giessen, Germany

Barry, T. N. (1998). The feeding value of chicory (Cichorium intybus) for ruminant livestock. Journal of Agricultural Science 131(3): 251-257. {a} Inst. Food Nutr. Human Health, Massey Univ., Palmerston North, New Zealand

Bartak, M., I. Nijs, et al. (1998). The susceptibility of PS II of Lolium perenne to a sudden fall in air temperature: Response of plants grown in elevated CO2 and/or increased air temperature. Environmental and Experimental Botany 39(1): 85-95. {a} Dep. Plant Physiol. Anat., Masaryk Univ., Kotlarska 2, 61137 Brno, Czech Republic

Bernal, M. P., A. F. Navarro, et al. (1998). Influence of sewage sludge compost stability and maturity on carbon and nitrogen mineralization in soil. Soil Biology and Biochemistry 30(3): 305-313. {a} Dep. Soil Water Conserv. Organic Waste Management, Centro Edafol. Biol. Aplicada Segura, CSIC, P.O. Box 4195, 30080 Murcia, Spain

Bernard, C. (1998). Comparative seed morphology of five Lolium L. species growing in France. Seed Science and Technology 26(3): 701-710. {a} Station Nationale d'Essais de Semences, G.E.V.E.S., rue Georges Morel, 49071, Beaucouze, France

Bluett, S. J., C. Matthew, et al. (1998). The relationship between herbage mass and pasture accumulation rate in winter. New Zealand Journal of Agricultural Research 41(3): 299-305. {a} Dep. Plant Sci., Massey Univ., Private Bag 11-222, Palmerston, New Zealand

Bonner, K. I., A. Rahman, et al. (1998). Relative intra-species competitive ability of nodding thistle biotypes with varying resistance to the herbicide 2,4-D. New Zealand Journal of Agricultural Research 41(2): 291-297. {a} AgResearch, Ruakura Res. Cent., Private Bag 3123, Hamilton, New Zealand

Burket, J. Z. and R. P. Dick (1998). Microbial and soil parameters in relation to N mineralization in soils of diverse genesis under differing management systems. Biology and Fertility of Soils 27(4): 430-438. {a} Dep. Crop Soil Sci., Oregon State Univ., Corvallis, OR 97331-7306, USA

Cagas, B., A. Zemanova, et al. (1998). Fusarium species, a likely cause of Lolium wilt. Plant Protection Science 34(3): 109-111. {a} Vyzkumna stanice Travinarska, 756 54 Zubri, Czech Republic

Calkins, J. B. and B. T. Swanson (1998). Comparison of conventional and alternative nursery field management systems: Soil physical properties. Journal of Environmental Horticulture 16(2): 90-97. Dep. Hortic. Sci., Univ. Minn., 1970 Folwell Ave., St. Paul, MN 55108, USA

Calkins, J. B. and B. T. Swanson (1998). Plant cold acclimation, hardiness, and winter injury in response to bare soil and groundcover-based nursery field management systems. Journal of Environmental Horticulture 16(2): 82-89. Dep. Hortic. Sci., Univ. Minn., 1970 Folwell Ave., St. Paul, MN 55108, USA

Carriere, Y., A. Bouchard, et al. (1998). Effect of endophyte incidence in perennial ryegrass on distribution, host-choice, and performance of the hairy chinch bag (Hemiptera: Lygaeidae). Journal of Economic Entomology 91(1): 324-328. Dep. Phytol., Centre Rech. Hortic., Pavillon l'Envirotron, Univ. Laval, PQ G1K 7P4, Canada

Carruthers, K., Q. Fe, et al. (1998). Intercropping corn with soybean, lupin and forages: Weed control by intercrops combined with interrow cultivation. European Journal of Agronomy 8(3-4): 225-238. {a} Dep. Plant Sci., MacDonald Campus, McGill Univ., 21,111 Lakeshore, Ste. Anne-de-Bellevue, PQ, Canada

Casler, M. D., D. J. Undersander, et al. (1998). An on-farm test of perennial forage grass varieties under management intensive grazing. Journal of Production Agriculture 11(1): 92-99. {a} Dep. Agronomy, Univ. Wis., Madison, WI 53706, USA

Cayley, J. W. D., M. C. Hannah, et al. (1998). Effects of phosphorus fertiliser and rate of stocking on the seasonal pasture production of perennial rye-grass-subterranean clover pasture. Australian Journal of Agricultural Research 49(2): 233-248. {a} Agric. Victoria Hamilton, Pastoral Vet. Inst., Private Bag 105, Hamilton, VIC 3300, Australia

Chastain, T. G. and W. C. Young, III (1998). Vegetative plant development and seed production in cool-season perennial grasses. Seed Science Research 8(2): 295-301. {a} Dep. Crop Soil Sci., Oregon State Univ., Corvallis, OR 97331-3002, USA

Cheplick, G. P. (1998). Genotypic variation in the regrowth of Lolium perenne following clipping: Effects of nutrients and endophytic fungi. Functional Ecology 12(2): 176-184. {a} Dep. Biol., College Staten Island City University New York, Staten Island, NY 10314, USA

Chiy, P. C. and C. J. C. Phillips (1998). Sodium fertilizer application to pasture. 7. Residual effects of combined applications with sulphur on herbage production and chemical composition. Grass and Forage Science 53(1): 11-18. {a} Dep. Clin. Vet. Med., Madingley Road, Univ. Cambridge, Cambridge CB3 0ES, UK

Chiy, P. C. and C. J. C. Phillips (1998). Sodium fertilizer application to pasture. 6. Effects of combined applications with sulphur on herbage production and chemical composition in the season of application. Grass and Forage Science 53(1): 1-10. {a} Dep. Clin. Vet. Med., Madingley Road, Univ. Cambridge, Cambridge CB3 0ES, UK

Cone, J. W., G. A. H. Van, et al. (1998). Prediction of nylon bag degradation characteristics of grass samples with the gas production technique. Journal of the Science of Food and Agriculture 77(3): 421-426. {a} DLO Inst. Animal Sci. Health, Dep. Ruminant Nutr., PO Box 65, NL-8200 AB Lelystad, Netherlands

Cuttle, S. P., R. V. Scurlock, et al. (1998). A 6-year comparison of nitrate leaching from grass/clover and N-fertilized grass pastures grazed by sheep. Journal of Agricultural Science 131(1): 39-50. {a} Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Ceredigion SY23 3EB, UK

Dalton, S. J., A. J. E. Bettany, et al. (1998). Transgenic plants of Lolium multiflorum, Lolium perenne, Festuca arundinacea and Agrostis stolonifera by silicon carbide fibre-mediated transformation of cell suspension cultures. Plant Science Shannon 132(1): 31-43. {a} Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Ceredigion SY23 3EB, UK

Damgaard, P. H., H. A. Abdel, et al. (1998). Natural occurrence of Bacillus thuringiensis on grass foliage. World Journal of Microbiology and Biotechnology 14(2): 239-242. {a} Dep. Ecol. Mol. Biol., Royal Vet. Agric. Univ., Thorvalsensvej 40, DK-1871 Frederiksberg C, Denmark

Daschner, A., J. C. Crespo, et al. (1998). Specific IgE to recombinant vegetal panallergen (rBet v 2) and fruit allergy in pollinic patients. Allergy Copenhagen 53(6): 614-618. {a} Lab. Inmunoalergia, Servicio Alergia Pediatrica, Hospital "La Paz", Castellana 261, Madrid 28046, Spain

Davies, D. M. and J. D. Graves (1998). Interactions between arbuscular mycorrhizal fungi and the hemiparasitic angiosperm Rhinanthus minor during co-infection of a host. New Phytologist 139(3): 555-563. {a} Dep. Environ. Sci., UCRYSJ, York YO3 7SX, UK

de, J. H., O. H. Jacobsen, et al. (1998). Particle-facilitated transport of prochloraz in undisturbed sandy loam soil columns. Journal of Environmental Quality 27(6): 1495-1503. {a} Danish Inst. Agric. Sci., Dep. Crop Physiol. Soil Sci., Res. Centre Foulum, P.O. Box 50, DK-8830 Tjele, Denmark

Deckmyn, G. and I. Impens (1998). UV-B and PAR in a grass (Lolium perenne L.) canopy. Plant Ecology 137(1): 13-19. Lab. Plant Ecol., Univ. Antwerpen UIA, Universiteitsplein 1, 2610 Wilrijk, Belgium

del, P. M., K. Osoro, et al. (1998). Effects of complementary grazing by goats on sward composition and on sheep performance managed during lactation in perennial ryegrass and white clover pastures. Small Ruminant Research 29(2): 173-184. {a} CIATA, Apdo 13, 33300 Villaviciosa, Asturias, Spain

Dewhurst, R. J. and P. J. King (1998). Effects of extended wilting, shading and chemical additives on the fatty acids in laboratory grass silages. Grass and Forage Science 53(3): 219-224. {a} Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth, Ceredigion, SY23 3EB, UK

Di, H. J., K. C. Cameron, et al. (1998). Nitrate leaching and pasture yields following the application of dairy shed effluent or ammonium fertilizer under spray or flood irrigation: Results of a lysimeter study. Soil Use and Management 14(4): 209-214. Soil Phys. Sci. Group, Soil Plant Ecol. Sci. Div., PO Box 84, Lincoln Univ., Canterbury, New Zealand

Di, H. J., K. C. Cameron, et al. (1998). Nitrate leaching for dairy shed effluent and ammonium fertiliser applied to a free-draining pasture soil under spray or flood irrigation. New Zealand Journal of Agricultural Research 41(2): 263-270. Soil Plant Ecol. Sci. Div., P.O. Box 84, Lincoln Univ., Canterbury, New Zealand

Donaghy, D. J. and W. J. Fulkerson (1998). Priority for allocation of water-soluble carbohydrate reserves during regrowth of Lolium perenne. Grass and Forage Science 53(3): 211-218. {a} Tasmanian Institute of Agricultural Research, Burnie, Tasmania, 7320, Australia

Douglas, J. T. and C. E. Crawford (1998). Soil compaction effects on utilization of nitrogen from livestock slurry applied to grassland. Grass and Forage Science 53(1): 31-40. {a} Soils Dep., SAC, Bush Estate, Penicuik EH26 0PH, UK

Echevarria, G., P. C. Vong, et al. (1998). Effect of NO3- on the fate of 99TcO4- in the soil-plant system. Journal of Environmental Radioactivity 38(2): 163-171. {a} Lab. Soil, Environmental Sci., ENSAIA-INRA/INPL, BP 172, 2, Ave. de la Foret de Haye, 54505 Vandoeuvre-les-Nancy Cedex, France

Eckard, R. J. and D. R. Franks (1998). Strategic nitrogen fertiliser use on perennial ryegrass and white cloverpasture in north-western Tasmania. Australian Journal of Experimental Agriculture 38(2): 155-160. {a} Inst. Land Food Resour., Univ. Melbourne, RMB 2460, Hazeldean Road, Ellinbank, VIC 3820, Australia

Eerens, J. P. J., R. J. Lucas, et al. (1998). Influence of the endophyte (Neotyphodium lolii) on morphology, physiology and alkaloid synthesis of perennial ryegrass during high temperature and water stress. New Zealand Journal of Agricultural Research 41(2): 219-226. {a} AgResearch, Ruakura Agric. Res. Cent., Private Bag 3123, Hamilton, New Zealand

Elgersma, A., M. Nassiri, et al. (1998). Competition in perennial ryegrass-white clover mixtures under cutting. 1. Dry-matter yield, species composition and nitrogen fixation. Grass and Forage Science. Dec. 53(4): 353-366. {a} Department of Agronomy, Graduate School of Production Ecology, Wageningen Agricultural University, Haarweg 333, 6709 RZ, Wageningen, Netherlands

Ervin, E. H. and A. J. Koski (1998). Growth responses of Lolium perenne L. to trinexapac-ethyl. Hortscience 33(7): 1200-1202. {a} Dep. Hortic., Univ. Mo., Columbia, MO 65211, USA

Fagerness, M. J. and D. Penner (1998). Evaluation of V-10029 and trinexapac-ethyl for annual bluegrass seedhead suppression and growth regulation of five cool-season turfgrass species. Weed Technology 12(3): 436-440. {a} Dep. Crop Soil Sci., Mich. State Univ., East Lansing, MI 48824-1325, USA

Fagerness, M. J. and D. Penner (1998). Spray application parameters that influence the growth inhibiting effects of trinexapac-ethyl. Crop Science 38(4): 1028-1035. {a} Mich. State Univ., Dep. Crop Soil Sci., East Lansing, MI 48824-1325, USA

Fahlbusch, B., W. D. Mueller, et al. (1998). Detection and quantification of group 4 allergens in grass pollen extracts using monoclonal antibodies. Clinical and Experimental Allergy 28(7): 799-807. {a} Inst. Clin. Immunol., Friedrich-Schiller-University, Am Johannisfriedhof 3, 07743 Jena, Germany

Faure, S., J. B. Cliquet, et al. (1998). Nitrogen assimilation in Lolium perenne colonized by the arbuscular mycorrhizal fungus Glomus fasciculatum. New Phytologist 138(3): 411-417. {a} UA INRA 950 Physiol. Biochim. Veg., IRBA, Univ. Caen, 14032 Caen Cedex, France

Ferrer, M., M. L. Sanz, et al. (1998). Effect of immunotherapy on allergen-specific production of sulphidoleukotriene and histamine. Journal of Investigational Allergology and Clinical Immunology 8(5): 277-280. {a} Dep. Allergy Clin. Immunol., Univ. Clin. of Navarra, P.O. Box 4209, 31080 Pamplona, Spain

Ferrer, M., M. L. Sanz, et al. (1998). Study of IgE-dependent sulphidoleukotriene cellular releasability. Journal of Investigational Allergology and Clinical Immunology 8(1): 17-22. {a} Dep. Allergology Clinical Immunol., Univ. Clinic, Fac. Med., Univ. Navara, PO Box 4092, 31080 Pamplona, Spain

Folling, M., C. Pedersen, et al. (1998). Reduction of nuclease activity from Lolium protoplasts: Effect on transformation frequency. Plant Science Shannon 139(1): 29-40. {a} Dep. Agric. Sci., Plant Breeding Crop Sci., Royal Vet. Agric. Univ., 40 Thorvaldsensvej, DK-1871 Frederiksberg C, Copenhagen, Denmark

Fulkerson, W. J., K. Slack, et al. (1998). Nutrients in ryegrass (Lolium spp.), white clover (Trifolium repens) and kikuyu (Pennisetum clandestinum) pastures in relation to season and stage of regrowth in a subtropical environment. Australian Journal of Experimental Agriculture 38(3): 227-240. {a} NSW Agric., Wollongbar Agric. Inst., Wollongbar, NSW 2477, Australia

Gerzabek, M. H., F. Strebl, et al. (1998). Plant uptake radionuclides in lysimeter experiments. Environmental Pollution 99(1): 93-103. {a} Austrian Res. Cent. Seibersdorf, Div. Life Sci., A-2444 Seibersdorf, Austria

Gooding, M. J., N. D. Cosser, et al. (1998). Sheep grazing and defoliation of contrasting varieties of organically grown winter wheat with and without undersowing. Grass and Forage Science 53(1): 76-87. {a} Dep. Agric., Univ. Reading, Earley Gate, P.O. Box 236, Reading, Berkshire RG6 6AT, UK

Gross, M. K., J. B. Santini, et al. (1998). The influence of temperature and leaf wetness duration on infection of perennial ryegrass by Rhizoctonia solani. Plant Disease 82(9): 1012-1016. {a} Dep. Botany Plant Pathol., Purdue Univ., West Lafayette, IN 47907, USA

Hall, M. H., P. J. Levan, et al. (1998). Fall-grazing management effects on production and persistence of tall fescue, perennial ryegrass, and prairie grass. Journal of Production Agriculture 11(4): 487-491. {a} Dep. Agronomy, Pennsylvania State Univ., University Park, PA 16802, USA

Hameleers, A. and R. W. Mayes (1998). The use of n-alkanes to estimate herbage intake and diet composition by dairy cows offered a perennial ryegrass/white clover mixture. Grass and Forage Science 53(2): 164-169. {a} SAC, Food and Farm. Syst. Dep., Crichton Royal Farm, Mid Park, Bankend Road, Dumfries DG1 4SZ, UK

Hansen, Q. J. A., K. Nyamapfene, et al. (1998). Effects of aqueous extracts from Artemisia afra parts and soil on seed germination and early seedling development in selected plant species. South African Journal of Plant and Soil 15(1): 1-5. {a} Sch. Agric., Univ. North West, Private Bag X2046, Mmabatho 2735, South Africa

Hassim, Z., S. E. Maronese, et al. (1998). Injury to murine airway epithelial cells by pollen enzymes. Thorax 53(5): 368-371. {a} Inflammation Res. Unit, Sch. Pathology, Univ. New South Wales, Sydney, NSW 2052, Australia

Hayward, M. D., J. W. Forster, et al. (1998). Genetic analysis of Lolium: I. Identification of linkage groups and the establishment of a genetic map. Plant Breeding 117(5): 451-455. {a} Inst. Grassland Environ. Res., Aberystwyth, Wales SY23 3EB, UK

Hazard, L., M. A. De, et al. (1998). Perennial ryegrass cultivar effects on intake of grazing sheep and feeding value. Annales de Zootechnie Paris 47(2): 117-125. {a} INRA, Amelioration Plantes Fourrageres, 86600 Lusignan, France

Heath, R., H. Huxley, et al. (1998). cDNA cloning and differential expression of three caffeic acid O-methyltransferase homologues from perennial ryegrass (Lolium perenne). Journal of Plant Physiology 153(5-6): 649-657. {a} Plant Biotechnol. Centre, Agric. Victoria, Dep. Natl. Resour. Environ., La Trobe Univ., Bundoora, VIC 3083, Australia

Hirth, J. R., B. M. McKenzie, et al. (1998). Roots of perennial ryegrass (Lolium perenne) influence the burrowing of the endogeic earthworm, Aporrectodea rosea. Soil Biology and Biochemistry 30(14): 2181-2183. {a} Sch. Agriculture, La Trobe Univ., Bundoora, VIC 3083, Australia

Hodge, A., E. Paterson, et al. (1998). Characterisation and microbial utilisation of exudate material from the rhizosphere of Lolium perenne grown under CO2 enrichment. Soil Biology and Biochemistry 30(8-9): 1033-1043. {a} Dep. Biol., PO Box 373, Univ. York, York, YO10 5YW, UK

Hodge, A., J. Stewart, et al. (1998). Root proliferation, soil fauna and plant nitrogen capture from nutrient-rich patches in soil. New Phytologist 139(3): 479-494. {a} Dep. Biol., Univ. York, PO Box 373, York YO10 5YW, UK

Hoffman, P. C., D. K. Combs, et al. (1998). Performance of lactating dairy cows fed alfalfa silage or perennial ryegrass silage. Journal of Dairy Science 81(1): 162-168. {a} Marshfield Agric. Research Station, Marshfield, WI 54449, USA

Hongo, A. and H. Oinuma (1998). Effect of artificial treading on morphology and ethylene production in four herbage grasses. Research Bulletin of Obihiro University Natural Science. Oct. 21(1): 1-8. {a} Department of Agro-environmental Science, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido, 080-8555, Japan

Hopkins, D. L., A. S. Beattie, et al. (1998). Meat quality of cryptorchid lambs grazing either dryland or irrigated perennial pasture with some silage supplementation. Meat Science 49(3): 267-275. {a} NSW Agriculture, P.O. Box 129, Cowra, NSW 2794, Australia

Hornick, J. L., P. Raskin, et al. (1998). Compensatory growth in Belgian Blue bulls previously grazed at two stocking rates: Animal performance and meat characteristics. Animal Science Pencaitland 67(3): 427-434. {a} Dep. Anim. Nutr., B43, Fac. Vet. Med., Univ. Liege, Sart-Tilman, 400 Leige, Belgium

Horwath, W. R., L. F. Elliott, et al. (1998). Influence of soil quality on the function of inhibitory rhizobacteria. Letters in Applied Microbiology 26(2): 87-92. {a} Dep. Land Air Water Resources, Hoagland Hall, Univ. Calif. Davis, Davis, CA 95616, USA

Horwath, W. R., L. F. Elliott, et al. (1998). Denitrification in cultivated and noncultivated riparian areas of grass cropping systems. Journal of Environmental Quality 27(1): 225-231. {a} One Shields Ave., Dep. Land Air and Water Resour., Univ. Calif., Davis, CA 95616-8627, USA

Ineson, P., P. A. Coward, et al. (1998). Soil gas fluxes of N2O, CH4 and CO2 beneath Lolium perenne under elevated CO2: The Swiss free air carbon dioxide enrichment experiment. Plant and Soil 198(1): 89-95. {a} Inst. Terrestrial Ecol., Merlewood Res. Station, Grange-over-Sands, Cumbria LA11 6JU, UK

Isensee, A. R., A. M. Sadeghi, et al. (1998). Impact of burn-down herbicides on atrazine washoff from vegetation. Chemosphere 36(1): 13-19. {a} USDA, Agric. Res. Serv., Environ. Chemistry Lab., Build. 001, Beltsville, MD 20705, USA

Jacobs, J. L. (1998). A survey on the effect of management techniques and pasture composition and quality at harvesting on silage quality on dairy farms in western Victoria. Australian Journal of Experimental Agriculture 38(2): 139-143. {a} Dep. Nat. Resour. Environ., 78 Henna Street, Warrnambool, VIC 3280, Australia

Jacobs, J. L., S. E. Rigby, et al. (1998). Effect of lock up and harvest dates on dairy pasture dry matter yield and quality for silage in southern-western Victoria. Australian Journal of Experimental Agriculture 38(2): 131-138. {a} Dep. Nat. Resour. Environ., 78 Henna Street, Warrnambool, VIC 3280, Australia

Jenkyn, J. F., R. J. Gutteridge, et al. (1998). A comparison of management regimes for one-year rotational set-aside within a sequence of winter wheat crops, and of growing wheat without interruption. 3. Effects of diseases. Journal of Agricultural Science 130(4): 399-410. IACR-Rothamsted, Harpenden, Herts. AL5 2JQ, UK

Jiang, H. and J. Fry (1998). Drougt responses of perennial ryegrass treated with plant growth regulators. Hortscience 33(2): 270-273. {a} Dep. Nat. Resour. Environ. Sci., Univ. Ill., Urbana, IL 61801, USA

Jiang, H., J. Fry, et al. (1998). Assessing irrigation management for its effect on disease and weed levels in perennial ryegrass. Crop Science 38(2): 440-445. {a} Dep. Hortic. Forest. Resour., Kans. State Univ., Manhattan, KS 66506, USA

Jongen, M. and M. B. Jones (1998). Effects of elevated carbon dioxide on plant biomass production and competition in a simulated neutral grassland community. Annals of Botany London 82(1): 111-123. {a} Bot. Dep., Trinity Coll., Univ. Dublin, Dublin 2, Ireland

Keady, T. W. J. and K. P. O (1998). An evaluation of potassium and nitrogen fertilization of grassland, and date of harvest, on fermentation, effluent production, dry-matter recovery and predicted feeding value of silage. Grass and Forage Science. Dec. 53(4): 326-337. {a} Agricultural Research Institute of Northern Ireland, Hillsborough, Down, BT26 6DR, UK

Keeling, A. A., J. A. Cook, et al. (1998). Effects of carbohydrate application on diazotroph populations and nitrogen availability in grass swards established in garden waste compost. Bioresource Technology 66(2): 89-97. {a} Crop Environ. Res. Centre, Harper Adams Coll., Newport, Shropshire TF10 8NB, UK

King, I. P., W. G. Morgan, et al. (1998). Introgression mapping in the grasses. I. Introgression of Festuca pratensis chromosomes and chromosome segments into Lolium perenne. Heredity 81(4): 462-467. {a} Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Ceredigion SY23 3EB, Wales, UK

Kirkpatrick, H. E. (1998). Factors affecting the success of California poppy (Eschscholzia californica) introduced into western Washington state. Northwest Science 72(3): 180-189. {a} Dep. Biol., Univ. Puget Sound, 1500 N., Warner, Tacoma, WA 98416, USA

Laidlaw, A. S. and J. A. Withers (1998). Changes in contribution of white clover to canopy structure in perennial ryegrass/white clover swards in response to N fertilizer. Grass and Forage Science 53(3): 287-291. {a} Applied Plant Science Division, Department of Agriculture for Northern Ireland, Plant Testing Station, 50 Houston Road, Crossnacreevy, Belfast, BT6 9SH, UK

Lewis, D. N., A. H. Marshall, et al. (1998). Influence of storage conditions on seed germination and vigour of temperate forage species. Seed Science and Technology 26(3): 643-656. {a} Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth, Ceredigion, SY23 3EB, UK

Leyval, C. and P. Binet (1998). Effect of polyaromatic hydrocarbons in soil on arbuscular mycorrhizal plants. Journal of Environmental Quality 27(2): 402-407. {a} Centre de Pedologie Biologique, CNRS UPR 6831 Associated with H. Poincare Univ., 17, rue Notre Dame des Bauvres, B.P. 5 54501 Vandoeuvre-les-Nancy Cedex, France

Luescher, A., G. R. Hendrey, et al. (1998). Long-term responsiveness to free air CO2 enrichment of functional types, species and genotypes of plants from fertile permanent grassland. Oecologia Berlin 113(1): 37-45. {a} Inst. Plant Sci., Swiss Federal Inst. Technol., CH-8092 Zurich, Switzerland

Marilley, L., G. Vogt, et al. (1998). Bacterial diversity in the bulk soil and rhizosphere fractions of Lolium perenne and Trifolium repens as revealed by PCR restriction analysis of 16S rDNA. Plant and Soil 198(2): 219-224. Lab. Microbiologie, Univ. Neuchatel, Rue Emile-Argand 11, CH-2007 Neuchatel, Switzerland

Matthew, C., J. Z. Yang, et al. (1998). Determination of tiller and root appearance in perennial ryegrass (Lolium perenne) swards by observation of the tiller axis, and potential application in mechanistic modelling. New Zealand Journal of Agricultural Research 41(1): 1-10. {a} Dep. Plant Sci., Massey Univ., Private Bag 11-222, Palmerston North, New Zealand

Matthies, D. (1998). Influence of the host on growth and biomass allocation in the two faculatative root hemiparasites Odontites vulgaris and Euphrasia minima. Flora Jena 193(2): 187-193. {a} Inst. Umweltwissenschaften, Univ. Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland

Maxwell, T. J., A. R. Sibbald, et al. (1998). The implications of controlling grazed sward height for the operation and productivity of upland sheep systems in the UK. 4. The effect of seasonal pattern of nitrogen fertilizer application and annual stocking rate. Grass and Forage Science 53(3): 279-286. {a} Macaulay Land Use Research Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK

McAlister, F. M., C. L. D. Jenkins, et al. (1998). Sequence and expression of a stem-abundant caffeic acid O-methyltransferase cDNA from perennial ryegrass (Lolium perenne). Australian Journal of Plant Physiology 25(2): 225-235. {a} CSIRO Plant Industry, GPO Box 1600, Canberra, ACT 2601, Australia

McCoy, E. L. (1998). Sand and organic amendment influences on soil physical properties related to turf establishment. Agronomy Journal 90(3): 411-419. {a} Sch. Natural Resources, Ohio State Univ., Ohio Agric. Res. Dev. Center, Wooster, OH 44691, USA

McKenzie, F. R. (1998). Influence of applied nitrogen on vegetative, reproductive, and aerial tiller densities in Lolium perenne L. during the establishment year. Australian Journal of Agricultural Research 49(4): 707-711. {a} Dep. Nat. Resources Environment, 78 Henna St., Warrnambool, VIC 3280, Australia

McKenzie, F. R., J. L. Jacobs, et al. (1998). Influence of single applications of nitrogen on white clover nitrogen fixation in autumn and winter dairy pastures in south-west Victoria, Australia. African Journal of Range and Forage Science. Aug. 15(1-2): 1-6. {a} Department of Natural Resources and Environment, 78 Henna Street, Warrnambool, VIC, 3280, Australia

McKeown, A. W., R. F. Cerkauskas, et al. (1998). Long-term evaluation of cover crop and strip-tillage on tomato yield, foliar diseases and nematode populations. Canadian Journal of Plant Science 78(2): 341-348. Univ. Guelph, Horticultural Res. Inst. Ontario, Horticultural Exp. Station, Simcoe, ON N3Y 4N5, Canada

Mengel, K., Rahmatullah, et al. (1998). Release of potassium from the silt and sand fraction of loess-derived soils. Soil Science 163(10): 805-813. {a} Inst. Plant Nutr., Justus Liebig Univ., Suedanlage 6, 35 390 Giessen, Germany

Morris, C. A., N. R. Towers, et al. (1998). Preliminary results of selecting sheep for resistance or susceptibility to ryegrass staggers. Proceedings of the New Zealand Society of Animal Production 58: 154-156. AgRes., Ruakura Agric. Res. Cent., P.B. 3123, Hamilton, New Zealand

Morton, J. D., A. G. Sinclair, et al. (1998). Pasture yield responses to sulphur fertilisers in relation to nutrient ratios in white clover. New Zealand Journal of Agricultural Research 41(3): 313-323. {a} AgRes., Invermay Agric. Cent., Private Bag 50034, Mosgiel, New Zealand

Munday, F. S. C., A. L. Wilkins, et al. (1998). Isolation of lolicine A, lolicine B, lolitriol, and lolitrem N from Lolium perenne infected with Neotyphodium lolii and evidence for the natural occurrence of 31-epilolitrem N and 31-epilolitrem F. Journal of Agricultural and Food Chemistry 46(2): 590-598. {a} New Zealand Pastoral Agriculture Res. Inst. Ltd., Ruakura Agricultural Res. Centre, Private Bag 3123, Hamilton, New Zealand

Naffaa, W., C. Ravel, et al. (1998). A new group of endophytes in European grasses. Annals of Applied Biology 132(2): 211-226. Inst. Natl. Rech. Agronomique, Stn. Amelioration Plantes, 234 ave. du Brezet, 63039 Clermont-Ferrand Cedex, France

Nassiri, M. and A. Elgersma (1998). Competition in perennial ryegrass-white clover mixtures under cutting. 2. Leaf characteristics, light interception and dry-matter production during regrowth. Grass and Forage Science. Dec. 53(4): 367-379. {a} Department of Agronomy, Graduate School of Production Ecology, Wageningen Agricultural University, Haarweg 333, 6709 RZ, Wageningen, Netherlands

Nauggaard, N. H., N. A. De, et al. (1998). A field study of nitrogen dynamics and spring barley growth as affected by the quality of incorporated residues from white clover and ryegrass. Plant and Soil 203(1): 91-101. {a} Plant Biol. Biochem. Dep., RISO Natl. Lab., P.O. Box 49, DK-4000 Roskilde, Denmark

Newsham, K. K., G. C. Lewis, et al. (1998). Neotyphodium lolii, a fungal leaf endophyte, reduces fertility of Lolium perenne exposed to elevated UV-B radiation. Annals of Botany London 81(3): 397-403. {a} British Antarctic Survey, High Cross Madingley Road, Cambridge CB3 0ET, UK

Niederberger, V., S. Laffer, et al. (1998). IgE antibodies to recombinant pollen allergens (Phl p 1, Phl p 2, Phl p 5, and Bet v 2) account for a high percentage of grass pollen-specific IgE. Journal of Allergy and Clinical Immunology 101(2 Part 1): 258-264. {a} Inst. Gen. Exp. Pathol., AKH, Univ. Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria

Niezen, J. H., H. A. Robertson, et al. (1998). Production, faecal egg counts and worm burdens of ewe lambs which grazed six contrasting forages. Veterinary Parasitology 80(1): 15-27. {a} AgRes., Grassland, Private Bag 11008, Palmerston North, New Zealand

Nkana, J. C., A. Demeyer, et al. (1998). Availability of nutrients in wood ash amended tropical and soils. Environmental Technology 19(12): 1213-1221. {a} Lab. Anal. Chem. Appl. Biochem., Univ. Gent, Coupure Links 653, B-9000 Gent, Belgium

Nsereko, V. L., J. A. Rooke, et al. (1998). Influence of protease inhibitors on nitrogen distribution in ensiled perennial ryegrass and the utilisation of silage nitrogen for growth by rumen bacteria in vitro. Animal Feed Science and Technology 76(1-2): 51-63. {a} Anim. Biol. Div., SAC, Craibstone Estate, Aberdeen AB21 9YA, UK

O, B. T. A. and A. V. Barker (1998). Acidification of lime-stabilized biosolids in formulation of synthetic topsoil. Communications in Soil Science and Plant Analysis 29(9-10): 1107-1114. Dep. Plant Soil Sci., Bowditch Hall, Univ. Massachusetts, Amherst, MA 01003, USA

O, D. J. V., P. Nowakowski, et al. (1998). The effects of feeding grass silage and molassed sugarbeet pulp either separately or as an ensiled mixture to twin-bearing ewes. Journal of Agricultural Science 130(2): 217-227. {a} Dep. Anim. Sci. Production, University Coll. Dublin, Lyons Res. Farm, Newcastle, Co. Dublin, Ireland

Oehling, A. K., M. L. Sanz, et al. (1998). Importance of IgG4 determination in in vitro immunotherapy follow-up of inhalant allergens. Journal of Investigational Allergology and Clinical Immunology 8(6): 333-339. {a} Dep. Allergol. Clin. Immunol., Univ. Clin. Navarra, Apdo. 4209, 31090 Pamplona, Spain

Ogilvie, S. C., L. H. Booth, et al. (1998). Uptake and persistence of sodium monofluoroacetate (1080) in plants. Bulletin of Environmental Contamination and Toxicology 60(5): 745-749. {a} Manaaki Whenua, Post Office Box 69, Lincoln, New Zealand

Phillips, C. J. C. and N. L. James (1998). The effect of including white clover in perennial ryegrass swards and the height of mixed swards on the milk production, sward selection and ingestive behaviour of dairy cows. Animal Science Pencaitland 67(2): 195-202. {a} Dep. Clinical Vet. Med., Univ. Cambridge, Cambridge CB3 0ES, UK

Pichtel, J. and C. A. Salt (1998). Vegetative growth and trace metal accumulation on metalliferous wastes. Journal of Environmental Quality 27(3): 618-624. {a} Dep. Nat. Resour. Environ. Management, Ball State Univ., Muncie, IN 47306, USA

Pimentel, G., L. M. Carris, et al. (1998). Genetic variability among isolates of Tilletia barclayana, T. indica and allied species. Mycologia 90(6): 1017-1027. {a} Dep. Plant Pathol., Washington State Univ., Pullman, WA 99164-6430, USA

Reinert, J. A., J. C. Read, et al. (1998). Fall armyworm, Spodoptera frugiperda resistance in turfgrass. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 63(2b): 467-471. {a} Tex. A and M Univ. Res. Extension Cent., 17360 Coit Road, Dallas, TX 75252-6599, USA

Rezvani, M. P. and D. Wilman (1998). Cell wall thickness and cell dimensions in plant parts of eight forage species. Journal of Agricultural Science 131(1): 59-67. {a} Welsh Inst. Rural Studies, Univ. Wales, Aberystwyth, Ceredigion SY23 3AL, UK

Rogers, A., B. U. Fischer, et al. (1998). Acclimation of photosynthesis to elevated CO2 under low-nitrogen nutrition is affected by the capacity for assimilate utilization. Perennial ryegrass under free-air CO2 enrichment. Plant Physiology Rockville 118(2): 683-689. {a} Dep. Biol. Sci., John Tabor Lab., Univ. Essex, Wivenhoe Park, Colchester CO4 3SQ, UK

Rogers, J. N., III, J. T. Vanini, et al. (1998). Simulated traffic on turfgrass topdressed with crumb rubber. Agronomy Journal 90(2): 215-221. {a} Dep. Crop Soil Sci., Michigan State Univ., East Lansing, MI 48824, USA

Schapendonk, A. H. C. M., W. Stol, et al. (1998). LINGRA, a sink/source model to simulate grassland productivity in Europe. European Journal of Agronomy 9(2-3): 87-100. {a} DLO-Research Institute Agrobiology Soil Fertility AB-DLO, P.O. Box 14, 6700 AA Wageningen, Netherlands

Sluyter, R., E. R. Tovey, et al. (1998). Limited genetic control of specific IgE responses to rye grass pollen allergens in Australian twins. Clinical and Experimental Allergy 28(3): 322-331. {a} Dep. Med., Blackburn Build. DO6, Univ. Sydney, NSW 2006, Australia

Smith, F. R. and R. I. Yeaton (1998). Disturbance by the mould-boulding termite, Trinervitermes trinervoides, and vegetation patch dynamics in a semi-arid, south African grassland. Plant Ecology 137(1): 41-53. Dep. Bot., Univ. Durban-Westville Private Bag X54001, Durban 4000, South Africa

Smith, K. F., G. A. Kearney, et al. (1998). The use of repeated measurements analysis for the evaluation of seasonal variation in the dry matter yeild and nutritive value of perennial ryegrass (Lolium perenne L.) cultivars. Australian Journal of Experimental Agriculture 38(2): 145-154. {a} Dep. Nat. Resources Environ., Pastoral Vet. Inst., Bag 105, Hamilton, VIC 3300, Australia

Smith, K. F., R. J. Simpson, et al. (1998). Seasonal variation in the herbage yield and nutritive value of perennial ryegrass (Lolium perenne L.) cultivars with high or normal herbage water-soluble carbohydrate concentrations grown in three contrasting Australian dairy environments. Australian Journal of Experimental Agriculture 38(8): 821-830. {a} Agric. Victoria Pastoral Vet. Inst., Private Bag 105, Hamilton, VIC 3300, Australia

Stadelmann, F. J., B. Boller, et al. (1998). Fertility and growth in the field of Lolium perenne and Festuca rubra plants regenerated from suspension cultured cells and protoplasts. Plant Breeding 117(1): 37-43. {a} Swiss Federal Inst. Technol., Inst. Plant Sci., ETH-Zentrum, CH-8092 Zuerich, Switzerland

Stadelmann, F. J., B. Boller, et al. (1998). Field performance of cell-suspension-derived Lolium perenne L. regenerants and their progenies. Theoretical and Applied Genetics 96(5): 634-639. {a} Swiss Federal Inst. Technol., Inst. Plant Sci., ETH-Zentrum, CH-8092 Zurich, Switzerland

Stenberg, M. (1998). Spring establishment of perennial ryegrass in winter wheat. Swedish Journal of Agricultural Research 28(2): 83-90. {a} Swedish Univ. Agric. Sci., Dep. Soil Sci., Div. Soil Management P.O. Box 7014, S-750 07 Uppsala, Sweden

Sugiyama, S. (1998). Differentiation in competitive ability and cold tolerance between diploid and tetraploid cultivars in Lolium perenne. Euphytica 103(1): 55-59. {a} Fac. Agric. Life Sci., Hirosaki Univ., Hirosaki 036, Japan

Suphioglu, C., B. Blaher, et al. (1998). Molecular basis of IgE-recognition of Lol p 5, a major allergen of rye-grass pollen. Molecular Immunology 35(5): 293-305. {a} Dep. Allergy Clin. Immunol., Monash Med. Sch., Alfred Hosp., Prahran, VIC 3052, Australia

Taylor, J. E. and J. A. Thomson (1998). Bracken litter as mulch: Glasshouse evaluation of phytotoxicity. Australian Journal of Experimental Agriculture 38(2): 161-169. {a} Sch. Biol. Sci., Univ. New South Wales, Sydney, NSW 2052, Australia

Thom, E. R., C. D. Waugh, et al. (1998). Growth and persistence of perennial and hybrid ryegrasses when grazed by dairy cows in the central Waikato region of New Zealand. New Zealand Journal of Agricultural Research 41(4): 477-486. Dairying Res. Corp., Private Bag 3123, Hamilton, New Zealand

Thornton, B. (1998). Influence of pH and aluminum on nitrogen partitioning in defoliated grasses. Grass and Forage Science 53(2): 170-178. {a} Macaulay Lane Use Res. Inst., Craigiebuckler, Aberdeen AB15 8QH, UK

Tinghino, R., B. Barletta, et al. (1998). Molecular characterization of a cross-reactive Juniperus oxycedrus pollen allergen, Jun o 2: A novel calcium-binding allergen. Journal of Allergy and Clinical Immunology 101(6 Part 1): 772-777. {a} Lab. Immunol., Ist. Superiore di Sanita, Viale Regina Elena 299, 00161 Rome, Italy

Tkaczyk, C., M. Viguier, et al. (1998). Specific antigen targeting to surface IgE and IgG on mouse bone marrow-derived mast cells enhances efficiency of antigen presentation. Immunology 94(3): 318-324. {a} Unite Immuno-allergie, Inst. Pasteur, 28 Rue Dr. Roux, 75724 Paris Cedex 15, France

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velthof, G. L., B. M. L. Van, et al. (1998). Assessment of plant available nutrients in organic products using an airlift bioreactor. Journal of Environmental Quality 27(5): 1261-1267. {a} Dep. Environmental Sci., Subdep. Soil Sci. Plant Nutrition, Wageningen Agricultural Univ., P.O. Box 8005, 6700 EC Wageningen, Netherlands

Verstraete, D., J. Riondato, et al. (1998). Determination of the uptake of (Pt(NH3)4)(NO3)2 by grass cultivated on a sandy loam soil and by cucumber plants, grown hydroponically. Science of the Total Environment 218(2-3): 153-160. {a} Lab. Anal. Chem., Ghent Univ., Inst. Nucl. Sci., Proeftuinstr. 86, B-9000 Ghent, Belgium

Villar, M. C., P. S. J. Gonzalez, et al. (1998). Evaluation of three organic wastes for reclaiming burnt soils: Improvement in the recovery of vegetation cover and soil fertility in pot experiments. Biology and Fertility of Soils 26(2): 122-129. {a} Inst. Investigaciones Agrobiol. Galicia, CSIC, Apartado 122, E-15780 Santiago de Compostela, Spain

Volaire, F., H. Thomas, et al. (1998). Survival and recovery of perennial forage grasses under prolonged Mediterranean drought. II. Water status, solute accumulation, abscisic acid concentration and accumulation of dehydrin transcripts in bases of immature leaves. New Phytologist 140(3): 451-460. {a} Inst. Natl. Recherche Agronomique, Lab. Ecophysiol. Plantes Stress Environnementaux, 2 place Viala, F-34060 Montpellier Cedex 01, France

Volaire, F., H. Thomas, et al. (1998). Survival and recovery of perennial forage grasses under prolonged Mediterranean drought. I. Growth, death, water relations and solute content in herbage and stubble. New Phytologist 140(3): 439-449. {a} Inst. Natl. Recherche Agronomique, LEPSE, 2 place Viala, 34060 Montpellier, Cedex 01, France

Voundi, N. J. C., A. Demeyer, et al. (1998). Chemical effects of wood ash on plant growth in tropical acid soils. Bioresource Technology 63(3): 251-260. {a} Lab. Anal. Chem. Appl. Ecochem., Univ. Gent, Coupure Links 653, 9000 Gent, Belgium

Voundi, N. J. C., F. M. G. Tack, et al. (1998). Paper pulp as an amendment to a tropical acid soil: Effects on growth of rye grass. Communications in Soil Science and Plant Analysis 29(9-10): 1329-1340. {a} Lab. Anal. Chem. Applied Ecochem., Univ. Gent, Coupure Links 653 Gent, Belgium

Waldron, B. L., N. J. Ehlke, et al. (1998). Controlled freezing as an indirect selection method for field winterhardiness in turf-type perennial ryegrass. Crop Science 38(3): 811-816. {a} Dep. Agron. Plant Genet., 1991 Buford Circle, 411 Borlaug Hall, Univ. Minn., St. Paul, MN 55108, USA

Waldron, B. L., N. J. Ehlke, et al. (1998). Genetic variation and predicted gain from selection for winterhardiness and turf quality in a perennial ryegrass topcross population. Crop Science 38(3): 817-822. {a} Dep. Agron. Plant Genet., 1991 Buford Circle, 411 Borlaug Hall, Univ. Minn., St. Paul, MN 55108-6026, USA

Wang, W. H., M. H. Wong, et al. (1998). Fractionation and biotoxicity of heavy metals in urban dusts collected from Hong Kong and London. Environmental Geochemistry and Health. Dec. 20(4): 185-198. {a} Department of Biology and Institute for Natural Resource and Waste Management, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China

Wardle, D. A., G. M. Barker, et al. (1998). Can comparative approaches based on plant ecophysiological traits predict the nature of biotic interactions and individual plant species effects in ecosystems? Journal of Ecology 86(3): 405-420. {a} Landcare Res., P.O. Box 69, Lincoln 8152, New Zealand

Warpeha, K. M. F., I. Capesius, et al. (1998). Genetic diversity in perennial ryegrass (Lolium perenne) evaluated by hybridization with ribosomal DNA: Implications for cultivar identification and breeding. Journal of Agricultural Science 131(1): 23-30. {a} Dep. Applied Plant Sci., Queen's Univ. Belfast, Belfast, UK

Warren, J. M., A. F. Raybould, et al. (1998). Genetic structure in the perennial grasses Lolium perenne and Agrostis curtisii. Heredity 81(5): 556-562. {a} Farmland Ecology Unit, SAC Aberdeen, Bucksburn, Aberdeen AB2 9TS, UK

Warringa, J. W., V. R. De, et al. (1998). Seed weight in Lolium perenne as affected by interactions among seeds within the inflorescence. Annals of Botany London 82(6): 835-841. {a} Inst. Land Food Resources, Univ. Melbourne, Parkville, VIC 3052, Australia

Warringa, J. W., P. C. Struik, et al. (1998). The pattern of flowering, seed set, seed growth and ripening along the ear of Lolium perenne. Australian Journal of Plant Physiology 25(2): 213-223. {a} Sch. Agric. Sci., La Trobe Univ., Bundoora, VIC 3083, Australia

Watson, C. J., P. Poland, et al. (1998). The efficacy of repeated applications of the urease inhibitor N-(n-butyl) thiophosphoric triamide for improving the efficiency of urea fertilizer utilization on temperate grassland. Grass and Forage Science 53(2): 137-145. {a} Agric. Environ. Sci. Div., Dep. Agric. North. Ireland, Newforge Lane, Belfast BT9 5PX, UK

Weyers, A. and I. Schuphan (1998). Variation of effect endpoint parameters in a terrestrial model ecosystem. Ecotoxicology . Dec. 7(6): 335-341. {a} RWTH Aachen (Aachen University of Technology), Worringerweg 1, D-52056, Aachen, Germany

Wilman, D., Y. Gao, et al. (1998). Some differences between eight grasses within the Lolium-Festuca complex when grown in conditions of severe water shortage. Grass and Forage Science 53(1): 57-65. {a} Welsh Inst. Rural Studies, Univ. Wales Aberystwyth, Llanbadarn Campus, Aberystwyth, Ceredigion SY23 3AL, UK

Wilman, D. and M. P. Rezvani (1998). Volume, surface area and cellular composition of chewed particles of plant parts of eight forage species and estimated degradation of cell wall. Journal of Agricultural Science 131(1): 69-77. {a} Welsh Inst. Rural Studies, Univ. Wales, Aberystwyth, Ceredigion SY23 3AL, UK

Wilman, D. and M. P. Rezvani (1998). In vitro digestibility and neutral detergent fibre and lignin contents of plant parts of nine forage species. Journal of Agricultural Science 131(1): 51-58. {a} Welsh Inst. Rural Studies, Univ. Wales, Aberystwyth, Ceredigion SY23 3AL, UK

Wilson, I. B. H. and F. Altmann (1998). Structural analysis of N-glycans from allergenic grass, ragweed and tree pollens: Core alpha1,3-linked fucose and xylose present in all pollens examined. Glycoconjugate Journal. Nov. 15(11): 1055-1070. {a} Institut fuer Chemie der Universitaet fuer Bodenkultur, Muthgasse 18, A-1190, Wien, Austria

Woodman, R. F. and W. L. Lowther (1998). Establishment and growth of grasses overdrilled into clover-developed, montane tussock grasslands. New Zealand Journal of Agricultural Research 41(4): 463-475. {a} AgResearch, Invermay Agric. Cent., Private Bag 50034, Mosgiel, New Zealand

Woodward, S. J. R. (1998). Quantifying different causes of leaf and tiller death in grazed perennial ryegrass swards. New Zealand Journal of Agricultural Research 41(2): 149-159. {a} AgResearch Ruakura, Private Bag 3123, Hamilton, New Zealand

Wurtzen, P. A., N. R. J. J. Van, et al. (1998). Dissection of the grass allergen-specific immune response in patients with allergies and control subjects: T-cell proliferation in patients does not correlate with specific serum IgE and skin reactivity. Journal of Allergy and Clinical Immunology 101(2 Part 1): 241-249. {a} ALK-Abello Group, Boge Alle 10-12, 2970 Horsholm, Denmark

Yang, J. Z., C. Matthew, et al. (1998). Tiller axis observations for perennial ryegrass (Lolium perenne) and tall fescue (Festuca arundinacea): Number of active phytomers, probability of tiller appearance, and frequency of root appearance per phytomer for three cutting heights. New Zealand Journal of Agricultural Research 41(1): 11-17. {a} Dep. Agron., Shanxi Agric. Univ., Taigu, Shanxi, China

Yoshimatsu, S. I., K. Arimura, et al. (1998). Comparison of population growth rates of confused flour beetle, Tribolium confusum Jacquelin (Coleoptera: Tenebrionidae), on endophyte-infected or endophyte-uninfected seeds of ground tall fescue and perennial ryegrass. Japanese Journal of Applied Entomology and Zoology 42(4): 227-229. {a} National Grassland Res. Inst., Nishinasuno, Tochigi 329-2793, Japan

Adler, A., H. Lew, et al. (1997). Effects of manuring and fertilizing on the Fusarium populations in grassland soils. Cereal Research Communications 25(3 Part 2): 721-722. Federal Office Agrobiol., Wieningerstr. 8, A-4020 Linz, Austria

Allan, B. E. (1997). Grazing management of oversown tussock country: 3. Effects on liveweight and wool growth of Merino wethers. New Zealand Journal of Agricultural Research 40(4): 437-447. {a} Wattie Bush, Peel Forest, RD 22, Geraldine, New Zealand

Andrews, M., A. Douglas, et al. (1997). Emergence of temperate pasture grasses from different sowing depths: Importance of seed weight, coleoptile plus mesocotyl length and shoot strength. Annals of Applied Biology 130(3): 549-560. {a} Ecol. Cent., Univ. Sunderland, Sunderland SR1 3SD, UK

Bailey, R. H., J. W. Jenks, et al. (1997). Registration of 'Elf' perennial ryegrass. Crop Science 37(5): 1673. {a} Plant Sci. Dep., Cook Coll., Rutgers Univ., New Brunswick, NJ 08903, USA

Bakken, A. K., J. MacDuff, et al. (1997). A stay-green mutation of Lolium perenne affects NO-3- uptake and translocation of N during prolonged N starvation. New Phytologist 135(1): 41-50. {a} Kvithamar Res. Cent., N-7500 Stjordal, Norway

Balfourier, F., J. A. Oliveira, et al. (1997). Factorial regression analysis of genotype by environment interaction in ryegrass populations, using both isozyme and climate data as covariates. Euphytica 98(1-2): 37-46. {a} Inst. Natl. Rech. Agronomique, Plant Breeding Stn., 63039 Clermont-Ferrand, France

Baligar, V., Z. L. He, et al. (1997). Effect of phosphate rock, coal combustion by-product, lime, and cellulose on ryegrass in an acidic soil. Plant and Soil 195(1): 129-136. {a} USDA-ARS-ASWCRL, Beaver, WV 25813-0400, USA

Ball, O. J. P., G. M. Barker, et al. (1997). Distribution and accumulation of the alkaloid peramine in Neotyphodium lolii-infected perennial ryegrass. Journal of Chemical Ecology 23(5): 1419-1434. {a} AgResearch, Grasslands Res. Cent., Private Bag 11008, Palmerston North, New Zealand

Ball, O. J. P., G. M. Barker, et al. (1997). Distribution and accumulation of the mycotoxin Lolitrem B in Neotyphodium lolii-infected perennial ryegrass. Journal of Chemical Ecology 23(5): 1435-1449. {a} AgResearch, Grasslands Res. Cent., Private Bag 11008, Palmerston North, New Zealand

Ball, O. J. P., C. O. Miles, et al. (1997). Ergopeptide alkaloids and Neotyphodium lolii-mediated resistance in perennial ryegrass against adult Heteronychus arator (Coleoptera: Scarabaeidae). Journal of Economic Entomology 90(5): 1382-1391. {a} AgRes., Grassland Res. Cent., Private Bag 11008, Palmerston North, New Zealand

Barthram, G. T. (1997). Shoot characteristics of Trifolium repens grown in association with Lolium perenne or Holcus lanatus in pastures grazed by sheep. Grass and Forage Science 52(3): 336-339. {a} Macaulay Land Use Res. Inst., Hartwood Res. Stn., Shotts, Lanarkshire ML7 4JY, UK

Bennett, S. J. (1997). A phenetic analysis and lateral key of the genus Lolium (Gramineae). Genetic Resources and Crop Evolution 44(1): 63-72. Centre Legumes Mediterranean Agric., Univ. Western Australia, Nedlands, WA 6907, Australia

Blackburn, K., S. R. Alm, et al. (1997). High-pressure liquid injection of isazofos for management of Hoplolaimus galeatus and Tylenchorhynchus dubius infesting turfgrasses. Journal of Nematology 29(4 Suppl.): 690-694. Dep. Plant Sci., Univ. R.I., Kingston, RI 02881, USA

Blum, H., G. Hendrey, et al. (1997). Effects of elevated CO-2, N fertilization, and cutting regime on the production and quality of Lolium perenne L. shoot necromass. Acta Oecologica 18(3): 291-295. {a} Inst. Plant Sci., Swiss Federal Inst. Technol., CH-8092 Zurich, Switzerland

Brendel, O., C. Wheeler, et al. (1997). A statistical comparison of the two-source delta15N and 15N isotope dilution methods for estimating plant N2-fixation using Trifolium pratense and Lolium perenne. Australian Journal of Plant Physiology 24(5): 631-636. {a} Technische Universitaet Muenchen, D-80290 Muenchen, Germany

Bush, L. P., H. H. Wilkinson, et al. (1997). Bioprotective alkaloids of grass-fungal endophyte symbioses. Plant Physiology Rockville 114(1): 1-7. {a} Dep. Plant Pathol., Univ. Kentucky, Lexington, KY 40546-0091, USA

Campbell, L. S. and B. E. Davies (1997). Experimental investigation of plant uptake of caesium from soils amended with clinoptilolite and calcium carbonate. Plant and Soil 189(1): 65-74. {a} 62 Wroughton Road, London SW11 6BG, UK

Casella, E. and J. F. Soussana (1997). Long-term effects of CO-2 enrichment and temperature increase on the carbon balance of a temperate grass sward. Journal of Experimental Botany 48(311): 1309-1321. {a} Fonctionnement Gestion Ecosyst. Prairial, INRA-Agronomie, 12 Av. Brezet, F-63039 Clermont-Ferrand Cedex 2, France

Charmet, G., C. Ravel, et al. (1997). Phylogenetic analysis in the Festuca-Lolium complex using molecular markers and ITS rDNA. Theoretical and Applied Genetics 94(8): 1038-1046. {a} INRA, Stn. Amelioration Plantes, F-63039 Clermont-Ferrand Cedex, France

Chen, C., D. A. Sleper, et al. (1997). RFLP detection of 2n pollen formation by first and second division restitution in perennial ryegrass. Crop Science 37(1): 76-80. {a} Dep. Agron., Univ. Missouri, Columbia, MO 65211-0001, USA

Cheplick, G. P. (1997). Responses to severe competitive stress in a clonal plant: Differences between genotypes. Oikos 79(3): 581-591. Dep. Biol., Coll. Staten Island, City Univ. New York, Staten Island, NY 10314, USA

Cheplick, G. P. (1997). Effects of endophytic fungi on the phenotypic plasticity of Lolium perenne (Poaceae). American Journal of Botany 84(1): 34-40. Dep. Biol., Coll. Staten Island City Univ. New York, Staten Island, NY 10314, USA

Chinoim, N., R. D. B. Lefroy, et al. (1997). Effect of crop duration and soil type on the ability of soil sulfur tests to predict plant response to sulfur. Australian Journal of Soil Research 35(5): 1131-1141. {a} Centra Lab. and Greenhouse Complex, Kasetsart Univ., Kamphaengsaen Campus, Kamphaengsaen, 73140 Nakhon Pathom, Thailand

Chiy, P. C. and C. J. C. Phillips (1997). Effects of sodium fertiliser on the chemical composition of perennial ryegrass and white clover leaves of different physiological ages. Journal of the Science of Food and Agriculture 73(3): 337-348. {a} Dep. Clin. Vet. Med., Univ. Cambridge, Cambridge, UK

Chorlton, K. H., I. D. Thomas, et al. (1997). A forage grass and legume plant collecting expedition in Czechoslovakia 1992. Genetic Resources and Crop Evolution 44(3): 277-283. {a} Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Christensen, M. J., O. J. P. Ball, et al. (1997). Fungal and host genotype effects on compatibility and vascular colonization by Epichloe festucae. Mycological Research 101(4): 493-501. {a} AgResearch Grasslands Res. Centre, Private Bag 11008, Palmerston North, New Zealand

Clark, H., P. C. D. Newton, et al. (1997). Dry matter yield, leaf growth and population dynamics in Lolium perenne/Trifolium repens-dominated pasture turves exposed to two levels of elevated CO-2. Journal of Applied Ecology 34(2): 304-316. AgRes., Grasslands Res. Cent., Private Bag 11008, Palmerston North, New Zealand

Clarke, R. G., O. N. Villalta, et al. (1997). Evaluation of resistance to five isolates of Puccinia coronata f. sp. lolii in 19 perennial ryegrass cultivars. Australian Journal of Agricultural Research 48(2): 191-198. Agric. Victoria, Inst. Hortic. Dev., Private Bag 15, South Eastern Mail Center, VIC 3176, Australia

Clayton, H., I. P. McTaggart, et al. (1997). Nitrous oxide emissions from fertilised grassland: A 2-year study of the effects of N fertiliser form and environmental conditions. Biology and Fertility of Soils 25(3): 252-260. {a} Inst. Ecology Resource Management, Univ. Edinburgh, West Mains Road, Edinburgh EH 3JG, UK

Cliquet, J. B., P. J. Murray, et al. (1997). Effect of the arbuscular mycorrhizal fungus Glomus fasciculatum on the uptake of amino nitrogen by Lolium perenne. New Phytologist 137(2): 345-349. {a} L A INRA Physiol. Biochim. Vegetales, IRBA, Univ. Caen, 14032 CAEN, Cedex, France

Cotrufo, M. F. and A. Gorissen (1997). Elevated Co2 enhances below-ground C allocation in three perennial grass species at different levels of N availability. New Phytologist 137(3): 421-431. {a} Fac. Scienze Ambientali, Seconda Univ. Napoli, 81100 Caserta, Italy

Creamer, N. G., M. A. Bennett, et al. (1997). Evaluation of cover crop mixtures for use in vegetable production systems. Hortscience 32(5): 866-870. {a} Horticultural Sci. Dep., N.C. State Univ., Box 7609, Raleigh, NC 27695, USA

Cudney, D. W., C. L. Elmore, et al. (1997). Common bermudagrass (Cynodon dactylon) management in cool-season turfgrass. Weed Technology 11(3): 478-483. {a} Dep. Botany Plant Sci., Univ. California, Riverside, CA 92521, USA

De, V. H., H. Valk, et al. (1997). Nutrient fluxes in splanchnic tissue of dairy cows: Influence of grass quality. Journal of Dairy Science 80(8): 1666-1673. {a} Inst. Anim. Sci. Health, Dep. Ruminant Nutr., PO Box 65, 8200 AB Lelystad, Netherlands

De, V. R., H. Vianden, et al. (1997). Kinetics and relative significance of remobilized and current C and N incorporation in leaf and root growth zones of Lolium perenne after defoliation: Assessment by 13C and 15N steady-state labelling. Plant Cell and Environment 20(1): 37-46. {a} AB-DLO, PO Box 14, NL-6700 AA Wageningen, Netherlands

Del, P. M. and K. Osoro (1997). Effect of sward height and vertical distribution of clover on performance of cashmere goats in autumn. Grass and Forage Science 52(3): 269-277. {a} CIATA, Apdo. 13, 33300 Villaviciosa, Asturias, Spain

Del, P. M., I. A. Wright, et al. (1997). Effects of sward height and clover availability on performance of ewes and lambs stocked in low nitrogen fertilized ryegrass-clover pastures. Investigacion Agraria Produccion y Sanidad Animales 12(1-3): 41-52. {a} Centro de Investigacion Aplicada y Tecnologia Agroalimentaria, Apdo. 13.3300, Villaviciosa, Asturias

Dohi, H., A. Yamada, et al. (1997). Feeding responses of goats to leaf alcohol and leaf aldehyde with characteristic leafy flavor. Animal Science and Technology 68(5): 474-480. {a} Chugoku Natl. Agric. Experimental Station, Oda-shi 694, Japan

Dohi, H., A. Yamada, et al. (1997). Intake stimulants in perennial ryegrass (Lolium perenne L.) fed to sheep. Journal of Dairy Science 80(9): 2083-2086. {a} Dep. Animal Production, Chugoku National Agric. Experiment Station, Oda, Shimane 694, Japan

Donaghy, D. J. and W. J. Fulkerson (1997). The importance of water-soluble carbohydrate reserves on regrowth and root growth of Lolium perenne (L.). Grass and Forage Science 52(4): 401-407. {a} Wollongbar Agric. Inst., Wollongbar, NSW 2477, Australia

Donaghy, D. J., J. M. Scott, et al. (1997). Effect of defoliation frequency and summer irrigation on survival of perennial (Lolium perenne) and biennial (Lolium multiflorum) ryegrass in the subtropics. Australian Journal of Experimental Agriculture 37(5): 537-545. {a} NSW Agric., Wollongbar Agric. Isnt., Wollongbar, NSW 2477, Australia

Durand, J. L., F. Gastal, et al. (1997). Interspecific variability of plant water status and leaf morphogenesis in temperate forage grasses under summer water deficit. European Journal of Agronomy 7(1-3): 99-107. {a} Station d'Ecophysiologie des Plantes Fourrageres, INRA, 86 600 Lusignan, France

Easton, H. S., A. D. Mackay, et al. (1997). Genetic variation for macro- and micro-nutrient concentration in perennial ryegrass (Lolium perenne L.). Australian Journal of Agricultural Research 48(5): 657-666. AgResearch, Private Bag 11008, Palmerston North, New Zealand

Echevarria, G., P. C. Vong, et al. (1997). Bioavailability of technetium-99 as affected by plant species and growth, application form, and soil incubation. Journal of Environmental Quality 26(4): 947-956. {a} Lab. Soil Environmental Sciences, ENSAIA-INRA/INPL, BP 172, 2, avenue de la Foret de Haye F-54505 Vandoeuvre-les-Nancy Cedex, France

Edwards, G. R., J. A. Newman, et al. (1997). Use of cues by grazing animals to locate food patches: An example with sheep. Applied Animal Behaviour Science 51(1-2): 59-68. {a} Dep. Biol., Imperial Coll. at Silwood Park, Ascot SL5 7PY, UK

Elgersma, A. and L. Fengrui (1997). Effects of cultivar and cutting frequency on dynamics of stolon growth and leaf appearance in white clover grown in mixed swards. Grass and Forage Science 52(4): 370-380. {a} Wageningen Agric. Univ., Dep. Agron., Haarweg 333, 6709 RZ Wageningen, Netherlands

Elgersma, A. and J. Hassink (1997). Effects of white clover (Trifolium repens L.) on plant and soil nitrogen and soil organic matter in mixtures with perennial ryegrass (Lolium perenne L.). Plant and Soil 197(2): 177-186. {a} C.T. de Wit Graduate Sch. Production Ecology, Wageningen Agricultural Univ., Dep. Agronomy, Haarweg 333, 6709 RZ Wageningen, Netherlands

Elgersma, A. and H. Schlepers (1997). Performance of white clover/perennial ryegrass mixtures under cutting. Grass and Forage Science 52(2): 134-146. {a} Wageningen Agricultural Univ., Dep. Agronomy, Haarweg 333, 6709 RZ Wageningen, Netherlands

Elmore, C. L., V. A. Gibeault, et al. (1997). Invasion resistance of tall fescue (Festuca arundinacea) and perennial ryegrass (Lolium perenne) to kikuyugrass (Pennisetum clandestinum). Weed Technology 11(1): 24-29. {a} Ext. Weed Sci., Weed Sci. Program, Univ. California, Davis, CA 95616, USA

Expert, J. M., P. Jacquard, et al. (1997). Neighbourhood effect of genotypes of Rhizobium leguminosarum biovar trifolii, Trifolium repens and Lolium perenne. Theoretical and Applied Genetics 94(3-4): 486-492. {a} Lab. de Recherche sur les Symbiotes des Racines, INRA, 1 place Pierre Viala, 34060 Montpellier Cedex 1, France

Fischer, B. U., M. Frehner, et al. (1997). Source-sink relations in Lolium perenne L. as reflected by carbohydrate concentrations in leaves and pseudo-stems during regrowth in a free air carbon dioxide enrichment (FACE) experiment. Plant Cell and Environment 20(7): 945-952. {a} Inst. Plant Sci., Swiss Federal Inst. Technol., Univ. 2, 8092 Zurich, Switzerland

Forbes, P. J., K. E. Black, et al. (1997). Temperature-induced alteration to root longevity in Lolium perenne. Plant and Soil 190(1): 87-90. Soil Biol. Unit, Land Resources Dep., SAC, Doig Scott Build., Craibstone Estate, Aberdeen AB21 9TQ, UK

Fraser, M. D. and I. J. Gordon (1997). Organic matter intake, diet digestibility and feeding behaviour of goats, red deer and South American camelids feeding on three contrasting Scottish vegetation communities. Journal of Applied Ecology 34(3): 687-698. {a} Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Fraser, M. D. and I. J. Gordon (1997). The diet of goats, red deer and South American camelids feeding on three contrasting Scottish upland vegetation communities. Journal of Applied Ecology 34(3): 668-686. {a} Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Gagliostro, G. A. and S. E. Lavandera (1997). Feeding corn and barley concentrates to grazing dairy cows. Milk production, plasma metabolite, response to insulin and glucose challenges to beta-adrenergic stimuli. Annales de Zootechnie Paris 46(2): 147-161. {a} INTA EEA Balcarce, Area Prod. Anim., CC 276, 7620 Balcarce, Argentina

Gajdos, R. (1997). Effects of two composts and seven commercial cultivation media on germination and yield. Compost Science and Utilization 5(1): 16-37. Swedish Univ. Agric. Sci., Dep. Horticulture, Alnarp, Sweden

Giddings, G. D., N. R. S. Hamilton, et al. (1997). The release of genetically modified grasses. Part 2: The influence of wind direction on pollen dispersal. Theoretical and Applied Genetics 94(8): 1007-1014. {a} Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Giddings, G. D., N. R. S. Hamilton, et al. (1997). The release of genetically modified grasses. Part 1: Pollen dispersal to traps in Lolium perenne. Theoretical and Applied Genetics 94(8): 1000-1006. {a} Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Gilliland, T. J. (1997). Changes induced by defoliation in the yield and digestibility of leaves and stems of perennial ryegrass (Lolium perenne L.) during reproductive development. European Journal of Agronomy 6(3-4): 257-264. Dep. Agric. Northern Ireland, Plant Test. Stn., 50 Houston Road, Crossnacreevy, Belfast BT6 9SH, UK

Gooding, R. F. and J. Frame (1997). Effects of continuous sheep stocking and strategic rest periods on the sward characteristics of binary perennial grass/white clover associations. Grass and Forage Science 52(4): 350-359. {a} SAC Auchincruive, Ayr KA6 5HW, UK

Griffith, S. M., J. S. Owen, et al. (1997). Nitrogen movement and water quality at a poorly-drained agricultural and riparian site in the Pacific Northwest. Soil Science and Plant Nutrition 43(Special Issue): 1025-1030. {a} Natl. Forage Seed Prod. Res. Cent., USDA, Agric. Res. Serv., Corvallis, OR 97331, USA

Haidouti, C. (1997). Inactivation of mercury in contaminated soils using natural zeolites. Science of the Total Environment 208(1-2): 105-109. {a} Agric. Univ. Athens, Lab. Soils Agric. Chem., Iera Odos 75, Botanikos 11855, Athens, Greece

Hansen, E. M. and J. Djurhuus (1997). Yield and N uptake as affected by soil tillage and catch crop. Soil and Tillage Research 42(4): 241-252. {a} Danish Inst. Agric. Sci., Dep. Soil Science, Res. Centre Foulum, PO Box 50, DK-8830 Tjele, Denmark

Hansen, E. M. and J. Djurhuus (1997). Nitrate leaching as influenced by soil tillage and catch crop. Soil and Tillage Research 41(3-4): 203-219. {a} Danish Inst. Plant Soil Sci., Dep. Soil Sci., Res. Cent. Foulum, P.O. Box 23, DK-8830 Tjele, Denmark

Harrison, J., C. Tonkinson, et al. (1997). Acclimation to freezing temperatures in perennial ryegrass (Lolium perenne). Acta Physiologiae Plantarum 19(4): 505-515. Inst. Grassland Environmental Res., Plas Gogerddan, Aberystwyth, Ceredigion SY23 3EB, UK

Hay, F. S., J. H. Niezen, et al. (1997). Infestation of sheep dung by nematophagous fungi and implications for the control of free-living stages of gastro-intestinal nematodes. Veterinary Parasitology 70(4): 247-254. {a} AgRes., Grasslands Res. Cent., Private Bag 11008, Palmerston North, New Zealand

Hazard, L. and M. Ghesquiere (1997). Productivity under contrasting cutting regimes of perennial ryegrass selected for short and long leaves. Euphytica 95(3): 295-299. {a} INRA, Amelioration des Plantes Fourrageres, Genetique des Graminees perennes, 86600 Lusignan, France

Hebeisen, T., A. Luscher, et al. (1997). Effects of elevated atmospheric CO-2 and nitrogen fertilisation on yield of Trifolium repens and Lolium perenne. Acta Oecologica 18(3): 277-284. {a} Inst. Plant Sci., Swiss Federal Inst. Technol., 8092 Zurich, Switzerland

Hernandez, G. A., J. Hodgson, et al. (1997). Effect of spring grazing management of perennial ryegrass and ryegrass-white clover pastures. 1. Tissue turnover and herbage accumulation. New Zealand Journal of Agricultural Research 40(1): 25-35. Programa Ganaderia, Colegio Postgraduados, Montecillo, Texcoco Edo. de Mexico, Mexico CP 56230, Mexico

Hernandez, G. A., C. Matthew, et al. (1997). Effect of spring grazing management on perennial ryegrass and ryegrass-white clover pastures. 2. Tiller and growing point densities and population dynamics. New Zealand Journal of Agricultural Research 40(1): 37-50. {a} Programa Ganaderia, Colegio Postgraduados, Montecillo, Texcoco Edo. de Mexico, Mexico, CP 56230, Mexico

Hiller, K. M., R. E. Esch, et al. (1997). Mapping of an allergenically important determinant of grass group I allergens. Journal of Allergy and Clinical Immunology 100(3): 335-340. {a} Dep. Microbiol. Immunol., Univ. North Carolina Sch. Med., Chapel Hill, NC 27599-7290, USA

Hodge, A., E. Paterson, et al. (1997). Effects of photon flux density on carbon partitioning and rhizosphere carbon flow of Lolium perenne. Journal of Experimental Botany 48(315): 1797-1805. {a} Dep. Biol., PO Box 383, University York, York Y01 5YW, UK

Hogh, J. H. and J. K. Schjoerring (1997). Residual nitrogen effect of clover-ryegrass swards on yield and N uptake of a subsequent winter wheat crop as studied by use of 15N methodology and mathematical modelling. European Journal of Agronomy 6(3-4): 235-243. {a} Plant Nutr. Lab., Dep. Agric. Sci., Royal Vet. Agric. Univ., 40 Thorvaldsensvej, DK-1871 Copenhagen, Denmark

Hogh, J. H., B. Wollenweber, et al. (1997). Kinetics of nitrate and ammonium absorption and accompanying H+ fluxes in roots of Lolium perenne L. and N-2-fixing Trifolium repens L. Plant Cell and Environment 20(9): 1184-1192. {a} Dep. Agric. Sci., Royal Vet. Agric. Univ., Thorvaldsensvej 40, DK-1871 Copenhagen, Denmark

Hopkins, D. W. (1997). Decomposition in a peaty soil improved for pastoral agriculture. Soil Use and Management 13(2): 104-106. Dep. Biological Sciences, Univ. Dundee, Dundee DD1 4HN, UK

Hopkins, D. W., J. A. Chudek, et al. (1997). Following the decomposition of ryegrass labelled with 13C and 15N in soil by solid-state nuclear magnetic resonance spectroscopy. European Journal of Soil Science 48(4): 623-631. {a} Dep. Biol. Sci., Univ. Dundee, Dundee DD1 4HN, UK

Houlbrooke, D. J., E. R. Thom, et al. (1997). A study of the effects of soil bulk density on root and shoot growth of different ryegrass lines. New Zealand Journal of Agricultural Research 40(4): 429-435. {a} Dairying Res. Corp., Private Bag 3123, Hamilton, New Zealand

Huff, D. R. (1997). RAPD characterization of heterogeneous perennial ryegrass cultivars. Crop Science 37(2): 557-564. Dep. Agronomy, Pennsylvania State Univ., University Park, PA 16802-3504, USA

Hume, D. E. and J. L. Brock (1997). Morphology of tall fescue (Festuca arundinacea) and perennial ryegrass (Lolium perenne) plants in pastures under sheep and cattle grazing. Journal of Agricultural Science 129(1): 19-31. AgRes. Grasslands Res. Centre, Private Bag 11008, Palmerston North, New Zealand

Johnson, R. H. and J. Morrison (1997). Effects of spring fertilizer nitrogen and sward height on production from perennial ryegrass/white clover swards grazed by beef cattle. Grass and Forage Science 52(3): 322-324. {a} Inst. Grassland Environ. Res., North Wyke Res. Stn., Okehampton, Devon EX20 2SB, UK

Jorgensen, F. V. and E. S. Jensen (1997). Short-term effects of a dung pat on N2 fixation and total N uptake in a perennial ryegrass/white clover mixture. Plant and Soil 196(1): 133-141. Plant Ecosystems Nutrient Cycling, Plant Biol. Biogeochem. Dep., Riso Natl. Lab., DK-4000 Roskilde, Denmark

King, R. W., C. Blundell, et al. (1997). Modified gibberellins retard growth of cool-season turfgrasses. Crop Science 37(6): 1878-1883. {a} CSIRO Plant Ind., GPO Box 1600, Canberra, ACT 2601, Australia

Kinnersley, R. P., A. J. H. Goddard, et al. (1997). Interception of caesium-contaminated rain by vegetation. Atmospheric Environment 31(8): 1137-1145. Cent. Analytical Res. Environment, Imperial Coll. Sci., Technol. Med., Silwood Park, Ascot, Berks SL5 7TE, UK

Kleijn, D., W. Joenje, et al. (1997). Patterns in species composition of arable field boundary vegetation. Acta Botanica Neerlandica 46(2): 175-192. Dep. Theoretical Production Ecol., Wageningen Agric. Univ., PO Box 430, 6700 AK Wageningen, Netherlands

Koga, H., Y. Hirai, et al. (1997). Successive transmission of resistance to bluegrass webworm to perennial ryegrass and tall fescue plants by artificial inoculation with Acremonium endophytes. JARQ 31(2): 109-115. {a} Research Inst. Agric. Resources, Ishikawa Agric. Coll., Suematsu, Nonoichi, Ishikawa 921, Japan

Kuecke, M., H. M. Helal, et al. (1997). N balance in forage grass production as influenced by N fertilizer type. Wirtschaftseigene Futter 43(2): 165-180. {a} Inst. Pflanzenbau, Bundesforschungsanstalt Landwirtschaft, Bundesallee 50, 38116 Braunschweig, Germany

Kusmartono, A. S. and T. N. Barry (1997). Rumen digestion and rumen outflow rate in deer fed fresh chicory (Cichorium intybus) or perennial ryegrass (Lolium perenne). Journal of Agricultural Science 128(1): 87-94. {a} Dep. Anim. Sci., Massey Univ., Palmerston North, New Zealand

Lawson, A. R., K. B. Kelly, et al. (1997). Effect of defoliation frequency on an irrigated perennial pasture in northern Victoria. 2. Individual plant morphology. Australian Journal of Agricultural Research 48(6): 819-829. {a} Kyabram Dairy Cent., Inst. Sustainable Irrigated Agriculture, Agriculture Victoria, RMB 3010, Kyabram, Vic. 3620, Australia

Lawson, A. R., K. B. Kelly, et al. (1997). Effect of defoliation frequency on an irrigated perennial pasture in northern Victoria. 1. Seasonal production and sward composition. Australian Journal of Agricultural Research 48(6): 811-817. {a} Kyabram Dairy Cent., Inst. Sustainable Irrigated Agriculture, Agriculture Victoria, RMB 3010, Kyabram, Vic. 3620, Australia

Lepp, N. W., J. Hartley, et al. (1997). Patterns of soil copper contamination and temporal changes in vegetation in the vicinity of a copper rod rolling factory. Environmental Pollution 95(3): 363-369. {a} Sch. Biol. Earth Sci., Liverpool John Moores Univ., Byrom St., Liverpool L3 3AF, UK

Lewis, G. C. and B. Vaughan (1997). Evaluation of a fungal endophyte (Neotyphodium lolii) for control of leatherjackets (Tipula spp.) in perennial ryegrass. Tests of Agrochemicals and Cultivars(18): 34-35. Inst. Grassland Environmental Res., North Wyke Res. Stn., Okehampton, Devon EX20 2SB, UK

Linde, D. T. and T. L. Watschke (1997). Nutrients and sediment in runoff from creeping bentgrass and perennial ryegrass turfs. Journal of Environmental Quality 26(5): 1248-1254. {a} Dep. Agron. Environ. Sci., Delaware Valley Coll., 700 E. Butler Ave., Doylestown, PA 18901, USA

Liu, D. L. and N. E. Christians (1997). Inhibitory activity of corn gluten hydrolysate on monocotyledonous and dicotyledonous species. Hortscience 32(2): 243-245. {a} Dep. Hortic., Iowa State Univ., Ames, IA 50011-1100, USA

Liu, F. Y., J. Hodgson, et al. (1997). Comparative studies of herbage intake and performance of lambs grazing Yorkshire fog (Holcus lanatus) and tall fescue (Festuca arundinacea) pastures under rotational management in summer. New Zealand Journal of Agricultural Research 40(4): 475-487. {a} Dep. Plant Sci., Massey Univ., Palmerston North, New Zealand

Liu, F. Y., J. Hodgson, et al. (1997). Comparative studies of herbage intake and performance of lambs grazing Yorkshire fog (Holcus lanatus) and perennial ryegrass (Lolium perenne) pastures in winter. New Zealand Journal of Agricultural Research 40(4): 463-474. {a} Dep. Plant Sci., Massey Univ., Palmerston North, New Zealand

Liu, H., R. J. Hull, et al. (1997). Comparing cultivars of three cool-season turfgrasses for soil water NO-3- concentration and leaching potential. Crop Science 37(2): 526-534. {a} Western Kentucky Univ., Dep. Agric., One Big Red Way, Bowling Green, KY 42101, USA

Louault, F., P. Carrere, et al. (1997). Efficiencies of ryegrass and white clover herbage utilization in mixtures continuously grazed by sheep. Grass and Forage Science 52(4): 388-400. {a} INRA-Agron., Fonctionnement Gestion Ecosyst. Prairial, Domaine Crouelle, 234 Av. du Brezet, F-63039 Clermont-Ferrand Cedex 2, France

Luo, Y. M. and P. Christie (1997). Alkaline sewage sludge solids affect the chemical speciation and bioavailability of Cu and Zn in the rhizosphere soil solution. Soil Science and Plant Nutrition 43(Special Issue): 1041-1046. Agric. Environ. Sci. Dep., Queen's Univ. Belfast, Newforge Lane, Belfast BT9 5PX, UK

Luscher, A. and J. Nosberger (1997). Interspecific and intraspecific variability in the response of grasses and legumes to free air CO-2 enrichment. Acta Oecologica 18(3): 269-275. {a} Inst. Plant Sci., Swiss Federal Inst. Technol., CH-8092 Zurich, Switzerland

Magnusson, C. and B. Hammeraas (1997). Nematodes in sports fields. Vaxtskyddsnotiser 61(4): 121-132. Fellesbygget, NO-1432 As, Norway

Marquez, J., C. J. A. Seoane, et al. (1997). The role of the intine and cytoplasm in the activation and germination processes of Poaceae pollen grains. Grana 36(6): 328-342. Dep. Botany, Fac. Pharm., Univ. Barcelona, Avda. Joan XXIII s/n, E-08028 Barcelona, Spain

Marquez, J., C. J. A. Seoane, et al. (1997). Allergenic and antigenic proteins released in the apertural sporoderm during the activation process in grass pollen grains. Sexual Plant Reproduction 10(5): 269-278. {a} Dep. Botany, Faculty Pharmacy, Univ. Barcelona, Av. Diagonal s/n., E-08028 Barcelona, Spain

Marriott, C. A., G. R. Bolton, et al. (1997). Factors affecting the stolon growth of white clover in ryegrass/clover patches. Grass and Forage Science 52(2): 147-155. {a} Macaulay Land Use Res. Inst., Craigiebuckler, Aberdeen AB15 8QH, UK

Marriott, C. A., J. M. Fisher, et al. (1997). Persistence and colonization of gaps in sown swards of grass and clover under different sward managements. Grass and Forage Science 52(2): 156-166. {a} Macaulay Land Use Res. Inst., Craigiebuckler, Aberdeen AB15 8QH, UK

Martin, M. F., A. A. Moreno, et al. (1997). Atopy and bronchial hyperresponsiveness in pure extrinsic childhood asthma. Journal of Investigational Allergology and Clinical Immunology 7(4): 229-233. {a} Hosp. Infantil La Paz, Servicio de Alergia, Paseo de la Castellana 261, Madrid 28029, Spain

Marx, S. P., J. Nosberger, et al. (1997). Hydrolysis of fructan in grasses: A beta-(2-6)-linkage specific fructan-beta-fructosidase from stubble of Lolium perenne. New Phytologist 135(2): 279-290. {a} Inst. Plant Sciences, Swiss Federal Inst. Technology, ETH-Zentrum, CH-8092 Zurich, Switzerland

Masuch, G., J. T. Franz, et al. (1997). Ozone increases group 5 allergen content of Lolium perenne. Allergy Copenhagen 52(8): 874-875. {a} Univ. Paderborn, Warburger Str. 100, D-33095 Paderborn, Germany

Matsumoto, H. and K. Sugawara (1997). Use of opal phytoliths as a marker for the identification of plant species and herbage intake ingested by grazing animals. 1. Identification of plant species by opal phytoliths and changes in opal phytolith composition at growth stages. Grassland Science 43(3): 249-257. Land Ecol., Fac. Agric., Tohoku Univ., Kawatabi, Narugo, Tamatsukuri, Miyagi 989-67, Japan

Matthies, D. (1997). Parasite - host interactions in Castilleja and Orthocarpus. Canadian Journal of Botany 75(8): 1252-1260. Inst. fuer Umweltwissenschaften, Univ. Zurich, Winterhurerstr. 190, CH-8057 Zurich, Switzerland

Mawdsley, J. L. and R. D. Bardgett (1997). Continuous defoliation of perennial ryegrass (Lolium perenne) and white clover (Trifolium repens) and associated changes in the composition and activity of the microbial population of an upland grassland soil. Biology and Fertility of Soils 24(1): 52-58. {a} Inst. Grassland Environmental Research, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Mazzarino, M. J., I. Walter, et al. (1997). Plant response to fish farming wastes in volcanic soils. Journal of Environmental Quality 26(2): 522-528. {a} Centro Regional Univ. Bariloche, Univ. Nac. Comahue, 8400 Bariloche, Argentina

McKenzie, F. R. (1997). Influence of grazing frequency and intensity on aerial and reproductive tillering in Lolium perenne L. under subtropical conditions. African Journal of Range and Forage Science 14(2): 45-48. {a} Dep. Grassland Sci., Univ. Natal, Private Bag X01, Scottsville 3209, South Africa

McKenzie, F. R. (1997). The influence of grazing management on weed invasion of Lolium perenne pastures under subtropical conditions in South Africa. Tropical Grasslands 31(1): 24-30. Agric. Victoria, 78 Henna Street, Warrnambool, VIC 3280, Australia

McKenzie, F. R. (1997). Influence of grazing frequency and intensity on tiller appearance and death rates of Lolium perenne L. under subtropical conditions. Australian Journal of Agricultural Research 48(3): 337-342. Dep. Nat. Resour. Environ., 78 Henna St., Warrnambool, VIC 3280, Australia

McKirdy, S. J. and R. A. C. Jones (1997). Further studies on the incidence of virus infection in white clover pastures. Australian Journal of Agricultural Research 48(1): 31-37. Cooperative Res. Centre, Legumes Mediterranean Agriculture, Univ. Western Australia, Nedlands, WA 6009, Australia

McTaggart, I. P., H. Clayton, et al. (1997). Nitrous oxide emissions from grassland and spring barley, following N fertiliser application with and without nitrification inhibitors. Biology and Fertility of Soils 25(3): 261-268. {a} Inst. Ecology Resource Management, Univ. Edinburgh, West Mains Road, Edinburgh EH 3JG, UK

Miller, R. M., B. A. D. Hetrick, et al. (1997). Mycorrhizal fungi affect root stele tissue in grasses. Canadian Journal of Botany 75(10): 1778-1784. {a} Environ. Res. Div., Argonne Natl. Lab., Argonne, IL 60439, USA

Montossi, F., J. Hodgson, et al. (1997). Herbage intake, ingestive behaviour and diet selection, and effects of condensed tannins upon body and wool growth in lambs grazing Lolium perenne and Holcus lanatus swards in summer. New Zealand Journal of Agricultural Research 40(4): 449-461. {a} Estacion Exp. Norte, Inst. Nacional Invest. Agropecuaria, Ruta 5, km 386, Tacuarembo, Uruguay

Mortensen, L. M. (1997). Effects of carbon dioxide concentrations on three grass species grown in mixture in two soil types at different ozone concentrations or temperatures. Acta Agriculturae Scandinavica Section B Soil and Plant Science 47(1): 14-19. Norwegian Crop Res. Inst., Saerheim Res. Cent., N-4062 Klepp stasjon, Norway

Morvan, A., G. Challe, et al. (1997). Rise of fructan exohydrolase activity in stubble of Lolium perenne after defoliation is decreased by uniconazole, an inhibitor of the biosynthesis of gibberellins. New Phytologist 136(1): 81-88. {a} Laboratoire de Physiologie et Biochimie Vegetales, U.A. INRA, Institut de Recherche en Biologie Applique, Universite, 14032 Caen Cedex, France

Mueller, T. and W. Seyfarth (1997). Starvation and nonculturable state in plant-associated lactic acid bacteria. Microbiological Research 152(1): 39-43. {a} Cent. Agric. Landscape Land Use Res. Muencheberg, Inst. Microbial Ecol. Soil Biol., Gutshof 7, D-14641 Paulinenaue, Germany

Munday, F. S. C., A. L. Wilkins, et al. (1997). Isolation and structure elucidation of lolilline, a possible biosynthetic precursor of the lilitrem family of tremorgenic mycotoxins. Journal of Agricultural and Food Chemistry 45(1): 199-204. {a} New Zealand Pastoral Agric. Res. Inst. Ltd., Ruakura Agric. Res. Center, Private Bag 3123, Hamilton, New Zealand

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Nijs, I., R. Ferris, et al. (1997). Stomatal regulation in a changing climate: A field study using free air temperature increase (FATI) and free air CO-2 enrichment (FACE). Plant Cell and Environment 20(8): 1041-1050. {a} Lab. Plant Ecol., Dep. Biol., Univ. Antwerp UIA, Universiteitsplein 1, B-2610 Wilrijk, Belgium

Nijs, V. (1997). An analysis of the balance between root and shoot activity in Lolium perenne cv. Melvina. Effects of CO-2 concentration and air temperature. New Phytologist 135(1): 81-91. {a} Lab. Plant Ecol., Dep. Biol., Univ. Antwerp, UIA, Universiteitsplein 1, Wilrijk B-2610, Belgium

O, D. C., A. G. Williams, et al. (1997). The effects of temperature on the effluent production potential of grass silage. Grass and Forage Science 52(4): 343-349. {a} US Dairy Forage Res. Cent., 1925 Linden Drive West, Madison, WI 53706, USA

O, D. C., A. G. Williams, et al. (1997). The effects of pressure and stage of ensilage on the mechanical properties and effluent production potential of grass silage. Grass and Forage Science 52(1): 12-26. {a} US Dairy Forage Res. Cent., 1925 Lindon Dr. W., Madison, WI 53706, USA

Oldenburg, E. (1997). Endophytic fungi and alkaloid production in perennial ryegrass in Germany. Grass and Forage Science 52(4): 425-431. {a} Inst. Grassland and Forage Res., Fed. Agric. Res. Cent. Braunschweig-Voelkenrode, Bundesallee 50, D-38116 Braunschweig, Germany

Oliveira, J. A., F. Balfourier, et al. (1997). Isozyme polymorphism in a collection of Spanish and French perennial ryegrass populations. Agronomie Paris 17(6-7): 335-342. {a} Station d'amelioration des plantes, Inst. Natl. de la Recherche Agronomique, 63039 Clermont-Ferrand, France

Oliveira, J. A., G. E. Rottinghaus, et al. (1997). Perennial ryegrass endophytes in Galicia, northwest Spain. Journal of Agricultural Science 129(2): 173-177. {a} Cent. Investigaciones Agrarias de Mabegondo, Apdo 10, 15080 La Coruna, Spain

Orr, R. J., P. D. Penning, et al. (1997). Diurnal patterns of intake rate by sheep grazing monocultures of ryegrass or white clover. Applied Animal Behaviour Science 52(1-2): 65-77. {a} Inst. Grassland Environ. Res., North Wyke, Okehampton EX20 2SB, UK

Penning, P. D., J. A. Newman, et al. (1997). Diet preferences of adult sheep and goats grazing ryegrass and white clover. Small Ruminant Research 24(3): 175-184. {a} Inst. Grassland Envioronmental Res., North Wyke, Okehampton, Devon EX20 2SB, UK

Pike, R. N., D. Bagarozzi, Jr., et al. (1997). Immunological cross-reactivity of the major allergen from perennial ryegrass (Lolium perenne), Lol pI, and the cysteine proteinase, bromelain. International Archives of Allergy and Immunology 112(4): 412-414. {a} Dep. Biochem. Mol. Biol., Univ. Georgia, Athens, GA 30602-7229, USA

Ravel, C., C. Courty, et al. (1997). Beneficial effects of Neotyphodium lolii on the growth and the water status in perennial ryegrass cultivated under nitrogen deficiency or drought stress. Agronomie Paris 17(3): 173-181. {a} Stn. Amelioration Plantes, INRA, F-63039 Clermont-Ferrand Cedex 02, France

Richardson, M. D. and S. Logendra (1997). Ergosterol as an indicator of endophyte biomass in grass seeds. Journal of Agricultural and Food Chemistry 45(10): 3903-3907. {a} Dep. Plant Sci., Cent. Turfgrass Sci., Cook Coll., Rutgers Univ., P.O. Box 23, New Brunswick, NJ 08903, USA

Rizzo, M. C., C. E. Fernandez, et al. (1997). IgE antibodies to aeroallergens in allergic children in Sao Paulo, Brazil. Journal of Investigational Allergology and Clinical Immunology 7(4): 242-248. {a} Rua Domingos Augusto Setti, 90, CEP 04116-170, Sao Paulo, SP, Brazil

Runeckles, V. C. and M. Vaartnou (1997). EPR evidence for superoxide anion formation in leaves during exposure to low levels of ozone. Plant Cell and Environment 20(3): 306-314. {a} Dep. Plant Sci., Univ. British Columbia, Vancouver, BC V6T 1Z4, Canada

Salih, A., A. S. Jones, et al. (1997). Confocal imaging of exine as a tool for grass pollen analysis. Grana 36(4): 215-224. Australian Key Cent. Microscopy Microanalysis, Madsen Build. FO9, Inst. Respiratory Med., Univ. Sydney, Sydney, NSW 2006, Australia

Samudio, S. H., A. D. Brede, et al. (1997). Registration of 'APM' perennial ryegrass. Crop Science 37(4): 1379. {a} Jacklin Seed Co., W. 5300 Riverbend Ave., Post Falls, ID 83854, USA

Samudio, S. H., A. D. Brede, et al. (1997). Registration of 'Advent' perennial ryegrass. Crop Science 37(3): 1003. {a} Jacklin Seed Co., W. 5300 Riverbend Ave., Post Falls, ID 83854, USA

Sanz, M. L., M. Ferrer, et al. (1997). Sulphidoleukotriene and histamine releasability in atopic patients. International Archives of Allergy and Immunology 113(1-3): 305-306. {a} Dep. Allergol. Clinical Immunol., Fac. Med., Univ. Navarra, E-31080 Pamplona, Spain

Sato, K., Y. Sato, et al. (1997). The macropore structure of soils formed by grass roots: 4. Macropore morphology of grassland of brown forest soil, England, determined by X-ray and contrast media. Grassland Science 43(3): 325-332. Sch. Vet. Med. Anim. Sci., Kitasato Univ., 23-35-1 Higashi, Towada, Aomori 034, Japan

Schardl, C. L. and T. D. Phillips (1997). Protective grass endophytes: Where are they from and where are they going? Plant Disease 81(5): 430-438. {a} Dep. Plant Pathol., Univ. Ky., Lexington, KY 40546-0091, USA

Schenk, U., H. J. Jaeger, et al. (1997). The response of perennial ryegrass/white clover mini-swards to elevated atmospheric CO2 concentrations: Effects on yield and fodder quality. Grass and Forage Science 52(3): 232-241. {a} Inst. Ecotoxicol., Federal Agric. Res. Cent., Bundesallee 50, D 38116 Braunschweig, Germany

Schenk, U., H. J. Jaeger, et al. (1997). The response of perennial ryegrass/white clover swards to elevated atmospheric CO-2 concentrations. 1. Effects on competition and species composition and interaction with N supply. New Phytologist 135(1): 67-79. {a} Inst. Produktions- Okotoxikol., Bundesforschungsanstalt Landwirtschaft, Bundesallee 50, D 38116 Braunschweig, Germany

Schils, R. L. M. (1997). Effect of a spring application of nitrogen on the performance of perennial ryegrass-white clover swards at two sites in the Netherlands. Netherlands Journal of Agricultural Science 45(2): 263-275. Res. Stn. Cattle Sheep and Horse Husbandry, Runderweg 6, NL-8219 PK Lelystad, Netherlands

Siffelova, G., M. Pavelkova, et al. (1997). RAPD fingerprinting of diploid Lolium perenne X hexaploid Festuca arundinacea hybrid genomes. Biologia Plantarum Prague 40(2): 183-192. {a} Inst. Plant Mol. Biol., AS CR, Branisovska 31, Ceske Budejovice CZ-370 05, Czech Republic

Sinclair, A. G., J. D. Morrison, et al. (1997). Determination of optimum nutrient element ratios in plant tissue. Journal of Plant Nutrition 20(9): 1069-1083. New Zealand Pastoral Agric. Res. Inst., Invermay Agric. Centre, Private Bag 50034, Mosgiel, New Zealand

Sinclair, A. G., J. D. Morrison, et al. (1997). Effects and interactions of phosphorus and sulphur on a mown white clover/ryegrass sward. 3. Indices of nutrient adequacy. New Zealand Journal of Agricultural Research 40(2): 297-307. AgResearch, Invermay Agricultural Cent., Private Bag 50034, Mosgiel, New Zealand

Smith, H., K. McCallum, et al. (1997). Experimental comparison of the nature conservation value, productivity and ease of management of a conventional and a more species-rich grass ley. Journal of Applied Ecology 34(1): 53-64. Wildlife Conservation Res. Unit, Dep. Zool., South Parks Road, Oxford OX1 3PS, UK

Smith, K. P., J. Handelsman, et al. (1997). Modeling dose-response relationships in biological control: Partitioning host responses to the pathogen and biocontrol agent. Phytopathology 87(7): 720-729. {a} Univ. Wis., Dep. Plant Pathol., 1630 Linden Dr., Madison, WI 53706, USA

Snow, C. S. R., R. H. Marrs, et al. (1997). Trends in soil chemistry and floristics associated with the establishment of a low-input meadow system on an arable clay soil in Essex. Biological Conservation 79(1): 35-41. {a} Ness Bot. Gardens, Ness, Neston, South Wirral L64 4AY, UK

Sweeney, P. M. and T. K. Danneberger (1997). RAPD markers for perennial ryegrass DNA extracted from seeds. Hortscience 32(7): 1212-1215. Dep. Hortic. Crop Sci., Ohio State Univ., Columbus, OH 43210, USA

Tamborini, E., S. Faccini, et al. (1997). Biochemical and immunological characterization of recombinant allergen Lol p 1. European Journal of Biochemistry 249(3): 886-894. {a} Dibit, San Raffaele Sci. Inst., Via Olgettina 58, I-20132 Milano, Italy

Thomas, H., C. Evans, et al. (1997). Introgression, tagging and expression of a leaf senescence gene in Festulolium. New Phytologist 137(1): 29-34. {a} Cell Biol. Dep., Inst. Grassland Environmental Res., Plas Gogerddan, Aberystwyth, Ceredigion SY23 3EB, UK

Thomsen, I. K. and V. Kjellerup (1997). Yields and N uptake of barley and ryegrass from soils with added animal manure differing in straw and urine content. European Journal of Agronomy 7(4): 285-292. {a} Danish Inst. Plant Soil Sci., Dep. Soil Sci., Research Cent. Foulum, P.O. Box 23, DK-8830 Tjele, Denmark

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Tworkoski, T. J., D. M. Glenn, et al. (1997). Carbohydrate and nitrogen partitioning within one-year shoots of young peach trees grown with grass competition. Hortscience 32(7): 1174-1177. {a} Appalachian Fruit Res. Stn., Agric. Res. Serv., U.S. Dep. Agric., 45 Wiltshire Rd., Kearneysville, WV 25430, USA

Ulen, B. (1997). Nutrient losses by surface run-off from soils with winter cover crops and spring-ploughed soils in the south of Sweden. Soil and Tillage Research 44(3-4): 165-177. {a} Dep. Soil Sci., Div. Water Management, Swedish Univ. Agric. Sci., PO Box 7072, S-750 07 Uppsala, Sweden

Unruh, J. B., N. E. Christian, et al. (1997). Herbicidal effects of the dipeptide alanyl-alanine on perennial ryegrass (Lolium perenne L.) seedlings. Crop Science 37(1): 208-212. {a} Dep. Hortic., 105 Horticulture Hall, Iowa State Univ., Ames, IA 50011-1100, USA

Unruh, J. B., N. E. Christians, et al. (1997). Mitotic and ultrastructural changes in root meristems of grass seedlings treated with alaninyl-alanine. Crop Science 37(6): 1870-1874. {a} Dep. Environ. Hortic., Univ. Fla., P.O. Box 3634, Milton, FL 32572, USA

Ursla, F. W. M., M. D. Hayward, et al. (1997). Isozyme and quantitative traits polymorphisms in European provenances of perennial ryegrass (Lolium perenne L.). Euphytica 93(3): 263-269. {a} Coconut Res. Inst., Lunuwila, Sri Lanka

Van, D. P. V. D. A., B. M. L. Van, et al. (1997). Effects of grassland management on the emission of methane from intensively managed grasslands on peat soil. Plant and Soil 189(1): 1-9. Dep. Soil Sci. Plant Nutrition, Wageningen Agric. Univ., P.O. Box 8005, 6700 EC Wageningen, Netherlands

Van, G. J. H., A. Gorissen, et al. (1997). Carbon and nitrogen allocation in Lolium perenne in response to elevated atmospheric CO-2 with emphasis on soil carbon dynamics. Plant and Soil 188(2): 299-308. {a} DLOResearch Inst. Agrobiol. Soil Fertility, Dep. Soil Ecol., P.O. Box 14, 6700 AA Wageningen, Netherlands

Van, R. R., L. W. A. Van, et al. (1997). Measurement of IgE antibodies against purified grass pollen allergens (Lo1 p 1,2, 3 and 5) during immunotherapy. Clinical and Experimental Allergy 27(1): 68-74. {a} C.L.B., Plesmanlaan 125, 1066 CX Amsterdam, Netherlands

Vazquez, D. A. B. R. and F. Berendse (1997). Nitrogen-use efficiency in six perennial grasses from contrasting habitats. Functional Ecology 11(5): 619-626. {a} Inst. Natural Resources Agrobiol., Apdo. 257, 37071 Salamanca, Spain

Vipond, J. E., G. Swift, et al. (1997). A comparison of diploid and tetraploid perennial ryegrass and tetraploid ryegrass/white clover swards under continuous sheep stocking at controlled sward heights: 3. Sward characteristics and animal output, years 4-8. Grass and Forage Science 52(1): 99-109. {a} Scottish Agric. Coll., Bush Estate, Penicuik, Midlothian EH26 OPH, UK

Volkogon, V. V., V. G. Minyailo, et al. (1997). Effect of molybdenum on the activity of the process of associative nitrogen fixation. Fiziologiya i Biokhimiya Kul'turnykh Rastenii 29(1): 32-37. Inst. Agric. Microbiol., Ukr. Acad. Agrar. Sci., ul. Shevchenko 97, Chernigov 250027, Ukraine

Wang, G. R., H. Binding, et al. (1997). Fertile transgenic plants from direct gene transfer to protoplasts of Lolium perenne L. and Lolium multiflorum Lam. Journal of Plant Physiology 151(1): 83-90. {a} Forschungsschwerpunkt Biotechnol. Pflanzenzuechtung, Univ. Hohenheim, D-70593 Stuttgart, Germany

Warringa, J. W. and M. J. Marinissen (1997). Sink-source and sink-sink relations during reproductive development in Lolium perenne L. Netherlands Journal of Agricultural Science 45(4): 505-520. {a} La Trobe Univ., Sch. Agric., Bundoora, VIC 3083, Australia

Watanabe, K., J. Nonaka, et al. (1997). Seasonal changes in productivity and quality of temperate grasses and the fluctuations with years: 3. Changes of mineral content. Grassland Science 43(1): 24-31. Fac. Agric., Iwate Univ., Ueda, Morioka 020, Japan

Wheeler, D. M., D. C. Edmeades, et al. (1997). Effect of lime on yield, N fixation, and plant N uptake from the soil by pasture on 3 contrasting trials in New Zealand. New Zealand Journal of Agricultural Research 40(3): 397-408. Ruakura Res. Centre, New Zealand Pastoral Agriculture Res. Inst., Private Bag 3123, Hamilton, New Zealand

White, T. A., B. D. Campbell, et al. (1997). Invasion of temperate grassland by a subtropical annual grass across an experimental matrix of water stress and disturbance. Journal of Vegetation Science 8(6): 847-854. {a} AgRes., Grassland Res. Cent., Private Bag 11008, Palmerston North, New Zealand

Wightman, P. S., M. F. Franklin, et al. (1997). The effect of sward height on responses of mini-swards of perennial ryegrass/white clover to slurry application. Grass and Forage Science 52(1): 42-51. {a} Agronomy Dep., SAC, Ferguson Build., Craibstone Estate, Bucksburn, Aberdeen AB21 9YA, UK

Wilkins, P. W. (1997). Useful variation in vitro digestibility within perennial ryegrass. Euphytica 93(2): 249-255. Inst. Grassland and Environ. Res., Plas Gogerddan, Aberystwyth SY23 3EB, UK

Wilkins, P. W., J. H. MacDuff, et al. (1997). Varietal differences in perennial ryegrass for nitrogen use efficiency in leaf growth following defoliation: Performance in flowing solution culture and its relationship to yield under simulated grazing in the field. Euphytica 98(1-2): 109-119. Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth SY23 3EB, UK

Williamson, R. C. and D. A. Potter (1997). Turfgrass species and endophyte effects on survival, development, and feeding preference of black cutworms (Lepidoptera: Noctuidae). Journal of Economic Entomology 90(5): 1290-1299. {a} Dep. Entomol., Univ. Kentucky, Lexington, KY 40546-0091, USA

Wilman, D., R. W. Derrick, et al. (1997). Physical breakdown of chickweed, dandelion, dock, ribwort, spurrey and perennial ryegrass when eaten by sheep and when macerated. Journal of Agricultural Science 129(4): 419-428. {a} Welsh Inst. Rural Studies, Univ. Wales, Aberystwyth, Ceredigion SY23 3AL, UK

Wisniewski, K., B. Zagdanska, et al. (1997). Interrelationship between frost tolerance, drought and resistance to snow mould (Microdochium nivale). Acta Agronomica Hungarica 45(3): 311-316. {a} Plant Breed. Acclimatization Inst., Radzikow, P.O. Box 1019, PL 00-950 Warsaw, Poland

Wu, J. L. Q. and L. Yan (1997). Effect of intercropping on soil erosion in young citrus plantation - a simulation study. Yingyong Shengtai Xuebao 8(2): 143-146. Zhejiang Agricultural Univ., Hangzhou 310029, China

Yamamoto, I., A. J. Turgeon, et al. (1997). Field emergence of solid matrix seed primed turfgrasses. Crop Science 37(1): 220-225. {a} Texas A and M Res. Ext. Cent. at Dallas, Dallas, TX 75252, USA

Yang, X. E., V. C. Baligar, et al. (1997). Accumulation and transport of nickel in relation to organic acids in ryegrass and maize grown with different nickel levels. Plant and Soil 196(2): 271-276. {a} Dep. Agric. Chem., Zhejiang Agric. Univ., Hangzhou, China

Young, W. C. I., H. W. Youngberg, et al. (1997). Spring nitrogen fertilization of perennial ryegrass seed crop. Journal of Production Agriculture 10(2): 327-330. {a} Dep. Crop Soil Sci., Oregon State Univ., Corvallis, OR 97331-3002, USA

Zanetti, S. and U. A. Hartwig (1997). Symbiotic N-2 fixation increases under elevated atmospheric pCO-2 in the field. Acta Oecologica 18(3): 285-290. Inst. Plant Sci., Swiss Federal Inst. Technol., 8092 Zurich, Switzerland

Zanetti, S., U. A. Hartwig, et al. (1997). Does nitrogen nutrition restrict the CO-2 response of fertile grassland lacking legumes? Oecologia Berlin 112(1): 17-25. {a} Inst. Plant Sciences, Swiss Federal Inst. Technol., 8092 Zurich, Switzerland

Amin, R. and H. Thomas (1996). Growth and water relations of diverse populations of Lolium perenne exposed to drought in field, glasshouse and controlled environment. Journal of Agricultural Science 126(1): 15-23. {a} Environ. Biol. Dep., Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Ashenden, T. W., S. A. Bell, et al. (1996). Interactive effects of gaseous air pollutants and acid mist on two major pasture grasses. Agriculture Ecosystems and Environment 57(1): 1-8. {a} Inst. Terrestrial Ecol., Bangor Res. Unit, Univ. Wales, Deiniol Rd., Bangor LL57 2UP, UK

Astwood, J. D. and R. D. Hill (1996). Cloning and expression pattern of Hor v 9, the group 9 pollen isoallergen from barley. Gene Amsterdam 182(1-2): 53-62. {a} Dep. Plant Science, Faculty Agricultural Food Sciences, Univ. Manitoba, Winnipeg, MB R3T 2N2, Canada

Baka, Z. A. and H. B. Gjaerum (1996). Egyptian Uredinales: I. Rusts on wild plants on the Nile Delta. Mycotaxon 60: 291-303. {a} Dep. Bot., Fac. Sci., Univ. Mansoura, Mansoura, Egypt

Barker, A. M. and C. J. M. Maczka (1996). The relationships between host selection and subsequent larval performance in three free-living graminivorous sawflies. Ecological Entomology 21(4): 317-327. {a} Game Conservancy Trust, Fordingbridge, Hants SP6 1EF, UK

Bartak, M., I. Nijs, et al. (1996). The effect of long-term exposure of Lolium perenne L. plants to elevated CO-2 and/or elevated air temperature on quantum yield of photosystem 2 and net photosynthesis. Photosynthetica Prague 32(4): 549-562. {a} Dep. Plant Physiol. Anat., Msaryk Univ., Kotlarska 2, CZ-61137 Brno, Czech Republic

Belanger, F. C. (1996). A rapid seedling screening method for determination of fungal endophyte viability. Crop Science 36(2): 460-462. Plant Sci. Dep., Rutgers Univ., New Brunswick, NJ 08903, USA

Binnie, R. C., D. T. Johnston, et al. (1996). The effect of a high-magnesium perennial ryegrass variety on the magnesium status of sheep. Grass and Forage Science 51(4): 456-463. {a} Agric. Res. Inst. of Northern Ireland, Hillsborough, Co. Down BT26 6DR, UK

Blaher, B., C. Suphioglu, et al. (1996). Identification of T-cell epitopes of Lol p 9, a major allergen of ryegrass (Lolium perenne) pollen. Journal of Allergy and Clinical Immunology 98(1): 124-132. {a} Dep. Path. Immunol., Monash Univ., Prahran, VIC 3181, Australia

Blom, C. W. P. M. and L. A. C. J. Voesenek (1996). Flooding: The survival strategies of plants. Trends in Ecology and Evolution 11(7): 290-295. Dep. Ecol., Univ. Nijmegen, PO Box 9010, 6500 GL Nijmegen, Netherlands

Blumenthal, M. J., K. Prakash, et al. (1996). Characterisation of the Kangaroo Valley ecotype of perennial ryegrass (Lolium perenne). Australian Journal of Agricultural Research 47(7): 1131-1142. {a} NSW Agric., Pasture Res. Unit, PO Box 63, Berry, NSW 2535, Australia

Bohne, H. and D. Rauch (1996). Effects of the agroforestry land use system on mineral nitrogen content and water potential in a Haplic Luvisol and on growth of Acer pseudoplatanus. Zeitschrift fuer Pflanzenernaehrung und Bodenkunde 159(2): 143-148. Institut Obstbau Baumschule, Universitaet Hannover, Am Steinberrg 3, D-31157 Sarstedt, Germany

Brock, J. L., D. E. Hume, et al. (1996). Seasonal variation in the morphology of perennial ryegrass (Lolium perenne) and cocksfoot (Dactylis glomerata) plants and populations in pastures under intensive sheep grazing. Journal of Agricultural Science 126(1): 37-51. AgRes., Grasslands Res. Cent., Private Bag 11008, Palmerston North, New Zealand

Bullock, J. M., J. Silvertown, et al. (1996). Plant demographic responses to environmental variation: Distinguishing between effects on age structure and effects on age-specific vital rates. Journal of Ecology 84(5): 733-743. {a} Furzebrook Res. Station, NERC Inst. Terrestrial Ecol., Wareham, Dorset BH20 5AS, UK

Bussink, D. W., L. A. Harper, et al. (1996). Ammonia transport in a temperate grassland: II. Diurnal fluctuations in response to weather and management conditions. Agronomy Journal 88(4): 621-626. {a} Nutrient Mgt. Inst., Runderweg 6, 8219 PK Lelystad, Netherlands

Cadot, P., A. M. Kochuyt, et al. (1996). Inhalative occupational and ingestive immediate-type allergy caused by chicory (Cichorium intybus). Clinical and Experimental Allergy 26(8): 940-944. {a} Lab. Clin. Immunol., Univ. Hosp., Kapucijnenvoer 33, B-3000 Leuven, Belgium

Calkins, J. B. and B. T. Swanson (1996). Comparison of conventional and alternative nursery field management systems: Tree growth and performance. Journal of Environmental Horticulture 14(3): 142-149. Dep. Hortic. Sci., Univ. Minnesota, St. Paul, MN 55108, USA

Casella, E., J. F. Soussana, et al. (1996). Long-term effects of CO-2 enrichment and temperature increase on a temperature grass sward: I. Productivity and water use. Plant and Soil 182(1): 83-99. {a} Fonctionnement Gestion Ecosysteme Prairial, INRA-Agron., 12 Av. du Brezet, 63039 Clermont-Ferrand Cedex 2, France

Cegarra, J., C. Paredes, et al. (1996). Use of olive mill wastewater compost for crop production. International Biodeterioration and Biodegradation 38(3-4): 193-203. Dep. Soil Water Conservation Organic Waste Management, Cent. Edafol. Biol. Aplicada Segura, CSIC, P.O. Box 4195, 30080 Murcia, Spain

Charmet, G., F. Balfourier, et al. (1996). Taxonomic relationships and interspecific hybridization in the genus Lolium (grasses). Genetic Resources and Crop Evolution 43(4): 319-327. INRA Stn d'Amelioration des Plantes, F-63039 Clermont-Ferrand, Cedex 2, France

Chen, L., W. A. Dick, et al. (1996). Ryegrass utilization of nutrients released from composted biosolids and cow manure. Compost Science and Utilization 4(1): 73-83. {a} Sch. Natural Resources, The Ohio State Univ., Ohio Agric. Res. Development Cent., Wooster, OH, USA

Chiy, P. C. and C. J. C. Phillips (1996). Effects of sodium fertiliser on the chemical composition of grass and clover leaves, stems and inflorescences. Journal of the Science of Food and Agriculture 72(4): 501-510. {a} Dep. Clin. Vet. Med., Univ. Cambridge, Cambridge CB3 0ES, UK

Chorlton, K. H., I. D. Thomas, et al. (1996). A forage grass and small grain legume plant collecting expedition in south east Poland, 1990. Genetic Resources and Crop Evolution 43(1): 69-77. {a} AFRC Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Christensen, M. J. (1996). Antifungal activity in grasses infected with Acremonium and Epichloe endophytes. Australasian Plant Pathology 25(3): 186-191. AgResearch Grasslands Res. Cent., Private Bag 11008, Palmerston North, New Zealand

Chu, L. M. and A. D. Bradshaw (1996). The value of pulverized refuse fines (PRF) as a substitute for topsoil in land reclamation. II. Lysimeter studies. Journal of Applied Ecology 33(4): 858-865. {a} Dep. Biol., Chinese Univ. Hong Kong, Shatin, NT, Hong Kong

Chu, L. M. and A. D. Bradshaw (1996). The value of pulverized refuse fines (PRF) as a substitute for topsoil in land reclamation. I. Field studies. Journal of Applied Ecology 33(4): 851-857. {a} Dep. Biol., Chinese Univ. Hong Kong, Shatin, NT, Hong Kong

Clark, D. A., E. R. Thom, et al. (1996). Milk production from pastures and pasture silage with different levels of endophyte infection. Proceedings of the New Zealand Society of Animal Production 56: 292-296. Dairying Res. Corporation, Private Bag 3123, Hamilton, New Zealand

Collins, R. P., M. Fothergill, et al. (1996). The use of repeated-measurements analysis to describe the overwintering of white clover cultivars. Grass and Forage Science 51(2): 116-120. {a} Inst. Grassland and Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Collins, R. P., M. Fothergill, et al. (1996). Interactions between seedlings of perennial ryegrass and white clover cultivars in establishing swards. Grass and Forage Science 51(2): 163-169. {a} IGER, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Cone, J. W., G. A. H. Van, et al. (1996). Influence of drying method and ageing on chemical and physical properties and in vitro degradation characteristics of grass and maize samples. Journal of Agricultural Science 126(1): 7-14. {a} DLO Inst. Anim. Sci. Health, Dep. Ruminant Nutr., PO Box 160, NL-8200 AD Leylstad, Netherlands

Cook, A., C. A. Marriott, et al. (1996). Effects of soil mechanical impedance on root and shoot growth of Lolium perenne L., Agrostis capillaris and Trifolium repens L. Journal of Experimental Botany 47(301): 1075-1084. {a} Sports Turf Res. Inst., St. Ives Estates, Bingley, West Yorkshire BD16 1AU, UK

De, L. C., E. Tamborini, et al. (1996). Human recombinant antibody fragments specific for a rye-grass pollen allergen: Characterization and potential applications. Molecular Immunology 33(13): 1049-1058. {a} Dibit, Dep. Biol. Technol. Res., San Raffaele Sci. Inst., Via Olgettina 58, 20132 Milano, Italy

Del, P. M., I. A. Wright, et al. (1996). Effects of grazing by sheep or goats on sward composition in ryegrass/white clover pasture and on subsequent performance of weaned lambs. Grass and Forage Science 51(2): 142-154. {a} Macaulay Land Use Res. Inst., Craigiebuckler, Aberdeen AB15 8QH, UK

Do, V. R. M. A. M., K. A. Gurney, et al. (1996). Endophyte Acremonium lolii in ecotypes of perennial ryegrass (Lolium perenne L.) collected in old Irish pastures. Irish Journal of Agricultural and Food Research 35(2): 151-157. {a} Teagasc, Oak Park Res. Cent., Carlow, Ireland

Dohi, H., A. Yamada, et al. (1996). Effects of organic solvent extracts from herbage on feeding behavior in goats. Journal of Chemical Ecology 22(3): 425-430. {a} Dep. Ecol., Natl. Grassland Res. Inst., Senbonmatsu, Nishinasuno, Tochigi 329-27, Japan

Dostalek, J. (1996). Application of the algorithm of the deductive method of syntaxonomic classification on an example of trampled communities in the Biosphere Reserve Krivoklatsko (Central Bohemia). Feddes Repertorium 107(1-2): 103-133. Res. Inst. Ornamental Gardening, Dep. Garden Landscape Architecture, CZ-25243 Pruhonice, Czech Republic

Dove, H., R. W. Mayes, et al. (1996). Effects of species, plant part, and plant age on the n-alkane concentrations in the cuticular wax of pasture plants. Australian Journal of Agricultural Research 47(8): 1333-1347. {a} Div. Plant Industry, CSIRO, GPO Box 1600, Canberra, ACT 2601, Australia

Dunn, J. H., D. D. Minner, et al. (1996). Clippings disposal and fertilization influence disease in perennial ryegrass turf. Hortscience 31(7): 1180-1181. {a} Dep. Horticulture, Univ. Missouri, Columbia, MO 65211, USA

Edwards, G. R., A. J. Parsons, et al. (1996). The spatial pattern of vegetation in cut and grazed grass/white clover pastures. Grass and Forage Science 51(3): 219-231. {a} Dep. Biol., Imperial Coll. Silwood Park, Ascot, Berks SL5 7PY, UK

Ester, A. and H. J. Nijenstein (1996). Control of field slug (Deroceras reticulatum (Muller)) by seed-applied pesticides in perennial ryegrass assessed by laboratory tests. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz 103(1): 42-49. {a} Res. Stn. Arable Farming and Field Prod. Veg., P.O. Box 430, NL-8200 AK Lelystad, Netherlands

Fahlbusch, B., W. D. Muller, et al. (1996). Application of reversed-phase high-performance liquid chromatography in the purification of major allergens from grass pollen. Journal of Immunological Methods 194(1): 27-34. {a} Inst. Clinical Immunol., Friedrich Schiller Univ., Am Johannisfriedhof 3, 07743 Jena, Germany

Fardeau, J. C. and J. Martinez (1996). Pig slurry applications: Effects on bioavailable phosphorus and cation concentration in soil solution. Agronomie Paris 16(3): 153-166. {a} DEVM, CEA, Cadarache, F-13108 Saint-Paul-les-Durance cedex, France

Faurie, O., J. F. Soussana, et al. (1996). Radiation interception, partitioning and use in grass-clover mixtures. Annals of Botany London 77(1): 35-45. {a} Fonctionnement Gestion Ecosysteme Prairial, INRA-Agronomie, 12 Av. du Brezet, 63039 Clermont-Ferrand Cedex 2, France

Ferrer, M., M. L. Sanz, et al. (1996). Antigen-specific sulphidoleukotriene production and histamine release in pollinic patients. Journal of Investigational Allergology and Clinical Immunology 6(5): 271-277. {a} Dep. Allergol. Clin. Immunol. Univ. Clin., Fac. Med., Univ. Navarra, P.O. Box 4209, 31080 Pamplona, Spain

Ferris, R., I. Nijs, et al. (1996). Elevated CO-2 and temperature have different effects on leaf anatomy of perennial ryegrass in spring and summer. Annals of Botany London 78(4): 489-497. {a} Plant Environment Lab., Dep. Agriculture, Univ. Reading, Cutbush Lane, Shinfield, Reading RG2 9AD, UK

Ferris, R., I. Nijs, et al. (1996). Contrasting CO-2 and temperature effects on leaf growth of perennial ryegrass in spring and summer. Journal of Experimental Botany 47(301): 1033-1043. {a} Plant Environ. Lab., Dep. Agric., Univ. Reading, Cutbush Lane, Shinfield, Reading RG2 9AD, UK

Fidanza, M. A. and P. H. Dernoeden (1996). Brown patch in perennial ryegrass as influenced by irrigation, fungicide, and fertilizers. Crop Science 36(6): 1631-1638. {a} Dep. Agron., Univ. Md., College Park, MD 20742, USA

Fidanza, M. A. and P. H. Dernoeden (1996). Influence of mowing height, nitrogen source, and iprodine on brown patch severity in perennial ryegrass. Crop Science 36(6): 1620-1630. {a} Dep. Agron., Univ. Md., College Park, MD 20742, USA

Fidanza, M. A. and P. H. Dernoeden (1996). Interaction of nitrogen source, application timing, and fungicide on rhizoctonia blight in ryegrass. Hortscience 31(3): 389-392. Dep. Agronomy, Univ. Maryland, College Park, MD 20742-5821, USA

Fidanza, M. A., P. H. Dernoeden, et al. (1996). Development and field validation of a brown patch warning model for perennial ryegrass turf. Phytopathology 86(4): 385-390. {a} University Maryland, College Park, MD 20742-5821, USA

Fisher, G. E. J. and A. M. Dowdeswell (1996). The effects of regrowth and maintenance height on a grass sward with a high density of tillers. Grass and Forage Science 51(4): 464-468. {a} SAC, Grassland Ruminant Sci. Dep., Auchincruive, Ayr KA6 5HW, UK

Fisher, G. E. J., A. M. Dowdeswell, et al. (1996). The effects of sward characteristics and supplement type on the herbage intake and milk production of summer-calving cows. Grass and Forage Science 51(2): 121-130. {a} Scottish Agric. Coll., Auchincruive, Ayr KA6 5W, UK

Fitzgerald, J. J. (1996). Grass silage as a basic feed for store lambs. 3. Effect of barley supplementation of silages varying in chop length on silage intake and lamb performance. Grass and Forage Science 51(4): 389-402. Teagasc, Moorepark Res. Cent., Fermoy, Co. Cork, Ireland

Fitzgerald, J. J. (1996). Grass silage as a basic feed for store lambs. 2. Effect of harvesting system and chop length of grass silage on silage intake and performance of store lambs. Grass and Forage Science 51(4): 378-388. Teagasc, Moorepark Res. Cent., Fermoy, Co. Cork, Ireland

Fitzgerald, J. J. (1996). Grass silage as a basic feed for store lambs. 1. Effect of wilting, chop length and stage of maturity of grass silage on intake and performance of store lambs. Grass and Forage Science 51(4): 363-377. Teagasc, Western Res. Cent., Belclare, Co. Galway, Ireland

Frossard, E., S. Sinaj, et al. (1996). The fate of sludge phosphorus in soil-plant systems. Soil Science Society of America Journal 60(4): 1248-1253. {a} Inst. Plant Sci., Swiss Federal Inst. Technol., Versuchsstan. Eschikon, Eschikon 33, CH-8315 Lindau, Switzerland

Gautier, H. and G. C. Varlet (1996). Regulation of leaf growth of grass by blue light. Physiologia Plantarum 98(2): 424-430. {a} Station Ecophysiologie Plantes Fourrageres, INRA, F-86600 Lusignan, France

Gilliland, T. J. (1996). Response of perennial ryegrass varieties to annual changes in sward management. Grass and Forage Science 51(4): 442-448. Plant Testing Stn., 50 Houston Rd., Crossnacreevy, Belfast BT6 9SH, UK

Goh, K. M., I. Mansur, et al. (1996). Biological nitrogen fixing capacity and biomass production of different understorey pastures in a Pinus radiata-pasture agroforestry system in New Zealand. Agroforestry Systems 34(1): 33-49. {a} Dep. Soil Sci., P.O. Box 84, Lincoln Univ., Canterbury, New Zealand

Gong, Y., M. G. Lambert, et al. (1996). Effects of contrasting sward heights within forage species on short-term ingestive behaviour of sheep and goats grazing grasses and legumes. New Zealand Journal of Agricultural Research 39(1): 83-93. {a} AgRes. Grasslands, Private Bag 11008, Palmerston North, New Zealand

Gooding, R. F., J. Frame, et al. (1996). Effects of sward type and rest periods from sheep grazing on white clover presence in perennial ryegrass/white clover associations. Grass and Forage Science 51(2): 180-189. {a} SAC Auchincruive, Ayr KA6 5HW, UK

Gorissen, A., P. J. Kuikman, et al. (1996). ESPAS: An advanced phytotron for measuring carbon dynamics in a whole plant-soil system. Plant and Soil 179(1): 81-87. DLO-Res. Inst. Agrobiol. and Soil Fertility, P.O. Box 14, 6700 AA Wageningen, Netherlands

Griffiths, W. M., J. Hodgson, et al. (1996). The use of a novel approach to determine the influence of sward characteristics on the discriminatory grazing behaviour of dairy cows. Proceedings of the New Zealand Society of Animal Production 56: 122-124. {a} Dep. Plant Sci., Massey Univ., Palmerston North, New Zealand

Groffman, P. M., P. Eagan, et al. (1996). Grass species and soil type effects on microbial biomass and activity. Plant and Soil 183(1): 61-67. {a} Inst. Ecosystem Studies, Box AB, Millbrook, NY 12545, USA

Guenther, T., U. Dornberger, et al. (1996). Effects of ryegrass on biodegradation of hydrocarbons in soil. Chemosphere 33(2): 203-215. {a} Inst. Mikrobiol., Friedrich-Schiller-Univ. Jena, Philosophenweg 12, D-07743 Jena, Germany

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Guerrand, D., h. M. P. Prud, et al. (1996). Fructan metabolism in expanding leaves, mature leaf sheaths and mature leaf blades of Lolium perenne. Fructan synthesis, fructosyltransferase and invertase activities. New Phytologist 134(2): 205-214. {a} Lab. Physiol. Biochimie Vegetales, LA INRA, IRBA, Univ., 14032 Caen cedex, France

Haigh, P. M., D. G. Chapple, et al. (1996). Effect of silage additives on big-bale grass silage. Grass and Forage Science 51(3): 318-323. {a} ADAS Pwllpeiran Res. Centre., Cwmystwyth, Aberystwyth, Dyfed 5723 4AB, UK

Hansen, E. M. and J. Djurhuus (1996). Nitrate leaching as affected by long-term N fertilization on a coarse sand. Soil Use and Management 12(4): 199-204. Danish Inst. Plant Soil Science, Dep. Soil Sciences, Res. Centre Foulum, P.O. Box 23, DK-8830 Tjele, Denmark

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Harris, M. O., J. L. Dando, et al. (1996). Susceptibility of cereal and non-cereal grasses to attack by Hessian fly (Mayetiola destructor (Say)). New Zealand Journal of Crop and Horticultural Science 24(3): 229-238. {a} Hortic. Food Res. Inst. New Zealand, Private Bag 92 169, Auckland, New Zealand

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Hawkins, J. M. B. and D. Scholefield (1996). Molybdate-reactive phosphorus losses in surface and drainage waters from permanent grassland. Journal of Environmental Quality 25(4): 727-732. {a} Inst. Grassland Environmental Res., North Wyke, Okehampton, Devon EX20 1JA, UK

Hazard, L., M. Ghesquiere, et al. (1996). Genetic variability for leaf development in perennial ryegrass populations. Canadian Journal of Plant Science 76(1): 113-118. {a} Inst. Natl. Rech. Agron., Station Amelioration Plantes Fourageres, F-86600 Lusignan, France

Heiss, S., S. Flicker, et al. (1996). Expression of Zm13, a pollen specific maize protein, in Escherichia coli reveals IgE-binding capacity and allergenic potential. FEBS Letters 381(3): 217-221. {a} Inst. Gen. Exp. Pathol., AKH, Univ. Vienna, Waehringer Guertel 18-20, Vienna A-1090, Austria

Henry, D. A., R. H. MacMillan, et al. (1996). Measurement of the shear and tensile fracture properties of leaves of pasture grasses. Australian Journal of Agricultural Research 47(4): 587-603. {a} CSIRO Div. Anim. Production, Private Bag, PO Wembley, WA 6014, Australia

Hester, A. J., F. J. G. Mitchell, et al. (1996). Activity patterns and resource use by sheep and red deer grazing across a grass/heather boundary. Journal of Zoology London 240(4): 609-620. {a} Macaulay Land Use Res. Inst., Craigiebuckler, Aberdeen AB15 8QH, UK

Hill, M. J. (1996). Potential adaptation zones for temperature pasture species as constrained by climate: A knowledge-based logical modelling approach. Australian Journal of Agricultural Research 47(7): 1095-1117. CCMAR, PMB PO, Wembly, WA 6014, Australia

Horwath, W. R. and L. F. Elliott (1996). Microbial C and N dynamics during mesophilic and thermophilic incubations of ryegrass. Biology and Fertility of Soils 22(1-2): 1-9. {a} Natl. Forage Seed Prod. Res. Cent., USDA-ARS, Corvallis, OR 97331, USA

Horwath, W. R. and L. F. Elliott (1996). Ryegrass straw component decomposition during mesophilic and thermophilic incubations. Biology and Fertility of Soils 21(4): 227-232. {a} Natl. Forage Seed Production Res. Cent., 3450 SW Campus Way, Corvallis, OR 97331, USA

Hurley, R. H., V. G. Lehman, et al. (1996). Registration of 'Yorktown III' perennial ryegrass. Crop Science 36(2): 465-466. {a} Lofts Seed, 347 Elizabeth Ave., Suite 101, Somerset, NJ 008873, USA

Huth, W. and S. Zuechner (1996). Investigations on the susceptibility of perennial ryegrass (Lolium perenne) to barley yellow dwarf virus. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz 103(2): 125-133. {a} Biol. Bundesanstalt Land- Forstwirtschaft, Inst. Biochemie Pflanzenvirol., D-38104 Braunschweig, Germany

Jackson, F. S., W. C. McNabb, et al. (1996). The condensed tannin content of a range of subtropical and temperate forages and the reactivity of condensed tannin with ribulose-1,5-bis-phosphate carboxylase (Rubisco) protein. Journal of the Science of Food and Agriculture 72(4): 483-492. {a} AgResearch Grasslands, Private Bag 11008, Palmerston North, New Zealand

Jensen, E. S. (1996). Compared cycling in a soil-plant system of pea and barley residue nitrogen. Plant and Soil 182(1): 13-23. Plant Nutr. Environ. Sci. Technol. Dep., Riso Natl. Lab., DK-4000 Roskilde, Denmark

Jones, M. B., M. Jongen, et al. (1996). Effects of elevated carbon dioxide concentrations on agricultural grassland production. Agricultural and Forest Meteorology 79(4): 243-252. {a} Dep. Botany, Trinity Coll., Univ. Dublin, Dublin 2, Ireland

Jung, G. A., J. A. Shaffer, et al. (1996). Harvest frequency and cultivar influence on yield and protein of alfalfa-ryegrass mixtures. Agronomy Journal 88(5): 817-822. {a} USDA-ARS, Pasture Systems Watershed Manage. Res. Lab., Curtin Rd., University Park, PA 16802-3702, USA

Karlsson, I. M. (1996). Establishment and maintenance of grassed sports fields: Experience from a field experiment on soil construction alternatives. Sveriges Lantbruksuniversitet Uppsala Institutionen for Markvetenskap Rapporter fran Jordbearbetningsavdelningen(89): 1-94. Dep. Soil Sci., Div. Soil Management, Swed. Univ. Agric. Sci., S-750 07 Uppsala, Sweden

Keady, T. W. J. and J. J. Murphy (1996). Effects of inoculant treatment on ryegrass silage fermentation, digestibility, rumen fermentation, intake and performance of lactating dairy cattle. Grass and Forage Science 51(3): 232-241. {a} Agric. Res. Inst. Northern Ireland, Large Park, Hillsborough, Co. Down BT26 6DR, UK

Keady, T. W. J. and K. P. O (1996). An evaluation of the effects of rate of nitrogen fertilization of grassland on silage fermentation, in-silo losses, effluent production and aerobic stability. Grass and Forage Science 51(4): 350-362. {a} Agric. Res. Inst. Northern Ireland, Hillsborough, Co Down BT26 6DR, UK

Keeling, A. A., G. L. F. Cater, et al. (1996). Application of glucose at low concentrations to grass swards in waste-derived compost can significantly increase long-term yields. Plant and Soil 184(1): 117-121. Crop and Envionment Res. Centre, Harper Adams College, Newport, Shropshire TF10 8NB, UK

Kendall, D. A., S. George, et al. (1996). Occurrence of barley yellow dwarf viruses in some common grasses (Gramineae) in south west England. Plant Pathology Oxford 45(1): 29-37. Dep. Agric. Sci., Univ. Bristol, Inst. Arable Crops Research, Long Ashton Research Station, Bristol BS18 9AF, UK

Kerley, S. J. and S. C. Jarvis (1996). Preliminary studies of the impact of excreted N on cycling and uptake of N in pasture systems using natural abundance stable isotopic discrimination. Plant and Soil 178(2): 287-294. {a} Inst. Grassland Environ. Res., N. Wyke, Okehampton, Devon EX20 2SB, UK

Kiang, A. S. and T. A. Kavanagh (1996). Cytoplasmic male sterility (CMS) in Lolium perenne L. 2. The mitochondrial genome of a CMS line is rearranged and contains a chimaeric atp 9 gene. Theoretical and Applied Genetics 92(3-4): 308-315. {a} Dep. Genetics, Trinity Coll. Dublin, Dublin 2, Ireland

Kilian, S. and D. Werner (1996). Enhanced denitrification in plots on N-2-fixing faba beans compared to plots of a non-fixing legume and non-legumes. Biology and Fertility of Soils 21(1-2): 77-83. Fachbereich Biol., Botanisches Inst. Philipps-Univ. Marburg, Karl von Frisch Strasse, D-35032 Marburg, Germany

Kirkham, F. W., J. O. Mountford, et al. (1996). The effects of nitrogen, potassium and phosphorus addition on the vegetation of a Somerset peat moor under cutting management. Journal of Applied Ecology 33(5): 1013-1029. {a} ADAS Wolverhampton, Woodthorne, Wergs Road, Wolverhampton WV6 8TQ, UK

Knight, A. C., J. S. Price, et al. (1996). Mechanical removal of surface moisture from grass. Grass and Forage Science 51(4): 412-417. {a} Silsoe Res. Inst., Wrest Park, Silsoe, Bedfordshire MK45 4HS, UK

Koops, J. G., O. Oenema, et al. (1996). Denitrification in the top and sub soil of grassland on peat soils. Plant and Soil 184(1): 1-10. Dep. Soil Sci. Plant Nutrition, Wageningen Agric. Univ., P.O. Box 8005, 6700 EC Wageningen, Netherlands

Kostov, O., N. Kaloianova, et al. (1996). Assessment of inoculation of ryegrass with Azospirillum brazilense using 15N labelled organic matter. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 61(1): 69-74. Nikola Poushkarov Inst. Soil Sci. Agroecol., 7 Shosse Bankya, 1080 Sofia, Bulgaria

Kusmartono, A. S., K. J. Stafford, et al. (1996). Intra-ruminal particle size reduction in deer fed fresh perennial ryegrass (Lolium perenne) or chicory (Cichorium intybus). Journal of Agricultural Science 127(4): 525-531. {a} Dep. Animal Sci., Massey Univ., Palmerston North, New Zealand

Kusmartono, T. N. B., P. R. Wilson, et al. (1996). Effects of grazing chicory (Cichorium intybus) and perennial ryegrass (Lolium perenne)/white clover (Trifolium repens) pasture upon the growth and voluntary feed intake of red and hybrid deer during lactation and post-weaning growth. Journal of Agricultural Science 127(3): 387-401. {a} Dep. Anim. Sci., Massey Univ., Palmerston North, New Zealand

Lattemae, P. and P. Lingvall (1996). Effect of hexamine and sodium nitrite in combination with sodium benzoate and sodium propionate on fermentation and storage stability of wilted and long cut grass silage. Swedish Journal of Agricultural Research 26(3): 135-146. {a} Lab. Feeds, Estonian Res. Inst. Agriculture, Saku, Estonia

Ledgard, S. F., M. S. Sprosen, et al. (1996). Nitrogen fixation by nine white clover cultivars in grazed pasture, as affected by nitrogen fertilization. Plant and Soil 178(2): 193-203. {a} AgRes. Ruakura Agric. Res. Cent., Private Bag 3123, Hamilton, New Zealand

Leduc, B. V., F. Inacio, et al. (1996). Characterization of Dac g 4, a major basic allergen from Dactylis glomerata pollen. Journal of Allergy and Clinical Immunology 98(6 Part 1): 1065-1072. {a} Unite Immuno-Allergie, Inst. Pasteur, 28 Rue du Dr. Roux, 75724 Paris Cedex 15, France

Leuchtmann, A. (1996). Isoenzymes as a taxonomic tool: As shown in grass endophytes. Mycologia Helvetica 8(2): 81-82. Geobotanisches Inst., ETH Zurich, Zollikerstr. 107, 8008 Zurich, Switzerland

Lewis, G. C., A. K. Bakken, et al. (1996). Effect of infection by the endophytic fungus Acremonium lolii on growth and nitrogen uptake by perennial ryegrass (Lolium perenne) in flowing solution culture. Annals of Applied Biology 129(3): 451-460. {a} Inst. Grassland and Environ. Res., North Wyke Res. Station, Okehampton, Devon EX20 2SB, UK

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Liu, D. L. and N. E. Christians (1996). Bioactivity of a pentapeptide isolated from corn gluten hydrolysate on Lolium perenne L. Journal of Plant Growth Regulation 15(1): 13-17. {a} Dep. Horticulture, Iowa State Univ., Ames, Iowa 50011, USA

Macklon, A. E. S., D. G. Lumsdon, et al. (1996). Phosphate fluxes, compartmentation and vacuolar speciation in root cortex cells of intact Agrostis capillaris seedlings: Effect of non-toxic levels of aluminium. Journal of Experimental Botany 47(299): 793-803. {a} Macaulay Land Use Res. Inst., Craigiebuckler, Aberdeen AB9 2QJ, UK

Mainz, A. K., J. Isselstein, et al. (1996). Studies on the ensilability of some common grassland forbs. Wirtschaftseigene Futter 42(2): 125-136. Inst. Pflanzenbau Pflanzenzuchtung II, Grunlandwirtschaft Futterbau, Justu-Liebig Univ. Giessen, Ludwigstr. 23, 35390 Giessen, Germany

Marriott, C. A. and M. T. Zuazua (1996). Tillering and partitioning of dry matter and nutrients in Lolium perenne growing with neighbours of different species: Effects of nutrient supply and defoliation. New Phytologist 132(1): 87-95. {a} Macaulay Land Use Res. Inst., Craigiebuckler, Aberdeen AB9 2QJ, UK

Martinez, J. and X. Hao (1996). A field treatment plant for pig slurry. Water Science and Technology 34(11): 87-92. {a} CEMAGREG, 17 avenue Cucille, 35044 Rennes Cedex, France

Martins, M. A. and D. J. Read (1996). The role of the external mycelial network of arbuscular mycorrhizal (AM) fungi. II. A study of phosphorus transfer between plants interconnected by a common mycelium. Revista de Microbiologia 27(2): 100-105. {a} Universidade Estadual do Norte Fluminense, Centro de Ciencias e Tecnologias Agropecuarias, Setor de Microbiologia do Solo, CEP 28015-620 - Campos - RJ -, Brazil

Matthies, D. (1996). Interactions between the root hemiparasite Melampyrum arvense and mixtures of host plants: Heterotrophic benefit and parasite-mediated competition. Oikos 75(1): 118-124. Inst. Umweltwissenschaften, Univ. Zurich, Winterthurerstr. 190, CH-8057 Zurich, Switzerland

McKenzie, F. R. (1996). The influence of applied nitrogen on the vigour of Lolium perenne during the establishment year under subtropical conditions. Tropical Grasslands 30(3): 345-349. Warrnambool Agric. Office, Agric. Victoria, 78 Henna St., Warrnambool, VIC 3280, Australia

McKenzie, F. R. (1996). The effect of grazing frequency and intensity on the root development of Lolium perenne L. under subtropical conditions. South African Journal of Plant and Soil 13(3): 77-81. Agric. Victoria, 78 Henna St., Warrnambool, VIC 3280, Australia

McKenzie, F. R. (1996). Influence of applied nitrogen on weed invasion of Lolium perenne pastures in a subtropical environment. Australian Journal of Experimental Agriculture 36(6): 657-660. Agric. Victoria, 78 Henna St., Warrnambool, VIC 3280, Australia

McKenzie, F. R. (1996). The influence of grazing frequency and intensity on the vigor of Lolium perenne L. under subtropical conditions. Australian Journal of Agricultural Research 47(6): 975-983. Agric. Victoria, 78 Henna St., Warrnambool, VIC 3280, Australia

McKenzie, F. R. (1996). The influence of applied nitrogen on herbage yield and quality of Lolium perenne L. pastures during the establishment year under subtropical conditions. South African Journal of Plant and Soil 13(1): 22-26. Dep. Grassland Sci., Univ. Natal, Private Bag X01, Scottsville 3209, South Africa

McKenzie, F. R. and N. M. Tainton (1996). Effect of grazing frequency and intensity on Lolium perenne L. pastures under subtropical conditions: Herbage quality. African Journal of Range and Forage Science 13(1): 6-8. {a} Agric. Victoria, 78 Henna St., Warrnambool, VIC 3280, Australia

McKenzie, F. R. and N. M. Tainton (1996). Effect of grazing frequency and intensity on Lolium perenne L. pastures under subtropical conditions: Herbage production. African Journal of Range and Forage Science 13(1): 1-5. {a} Agric. Victoria, 78 Henna St., Warrnambool, VIC 3280, Australia

McNeilly, T. and M. L. Roose (1996). Co-adaptation between neighbours? A case study with Lolium perenne genotypes. Euphytica 92(1-2): 121-128. Dep. Environmental Evolutionary Biol., Univ. Liverpool, P.O. Box 147, Liverpool, UK

Mehrhoff, L. A. and R. Turkington (1996). Growth and survival of white clover (Trifolium repens) transplanted into patches of different grass species. Canadian Journal of Botany 74(8): 1243-1247. {a} Dep. Botany, The University British Columbia, Vancouver, BC V6T 1Z4, Canada

Merchant, M. (1996). The intake of grass and rush (Juncus effusus L.) by goats grazing rush-infested grass pasture. Grass and Forage Science 51(1): 81-87. Macaulay Land Use Res. Inst., Craigiebuckler, Aberdeen AB15 8QH, UK

Mitchley, J., G. P. Buckley, et al. (1996). Vegetation establishment on chalk marl spoil: The role of nurse grass species and fertiliser application. Journal of Vegetation Science 7(4): 543-548. {a} Dep. Agriculture Horticulture Environment, Wye Coll., Univ. London, Wye, Ashford TN25 5AH, UK

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Muller, S. H. (1996). Interplanting ryegrass in winter leek: Effect on weed control, crop yield and allocation of N-fertiliser. Crop Protection 15(7): 641-648. Inst. Plant Sci./Ecol. Uiv. Fribourg, Perolles, CH-1700 Fribourg, Switzerland

Munday, F. S. C., A. L. Wilkins, et al. (1996). Structure elucidation of lolitrem F, a naturally occurring stereoisomer of the tremorgenic mycotoxin lolitrem B, isolated from Lolium perenne infected with Acremonium lolii. Journal of Agricultural and Food Chemistry 44(9): 2782-2788. {a} New Zealand Pastoral Agric. Res. Inst. Ltd., Ruakura Agric. Res. Centre, Private Bag 3123, Hamilton, New Zealand

Nijs, I. and I. Impens (1996). Effects of elevated CO-2 concentration and climate-warming on photosynthesis during winter Lolium perenne. Journal of Experimental Botany 47(300): 915-924. {a} Dep. Biol., Univ. Antwerp, UIA, Universiteitplein 1, B-2610 Wilrijk, Belgium

Nijs, I., F. Kockelbergh, et al. (1996). Free air temperature increase (FATI): A new tool to study global warming effects on plants in the field. Plant Cell and Environment 19(4): 495-502. {a} Lab. Plant Ecol., Dep. Biol., Univ. Antwerp UIA, Universiteitsplein 1, B-2610 Wilrijk, Belgium

Nijs, I., H. Teughels, et al. (1996). Simulation of climate change with infrared heaters reduces the productivity of Lolium perenne L. in summer. Environmental and Experimental Botany 36(3): 271-280. {a} Lab. Plant Ecol., Dep. Biol., Univ. Antwerp, UIA, Universiteitsplein 1, B-2610 Wukrijk, Belgium

Norrie, J. and A. Gosselin (1996). Paper sludge amendments for turfgrass. Hortscience 31(6): 957-960. {a} Acadian Seaplants, 30 Brown Ave., Dartmouth, NS B3B 1X8, Canada

O, B. T. A. and A. V. Barker (1996). Evaluation of ammonium and soluble salts on grass sod production in compost. II. Delaying seeding after compost application. Communications in Soil Science and Plant Analysis 27(1-2): 77-85. Dep. Plant Soil Sciences, Univ. Mass., Amherst, MA 01003, USA

O, B. T. A. and A. V. Barker (1996). Evaluation of ammonium and soluble salts on grass sod production in compost. I. Addition of ammonium or nitrate salts. Communications in Soil Science and Plant Analysis 27(1-2): 57-76. Dep. Plant Soil Sciences, Univ. Mass., Amherst, MA 01003, USA

Oertel, C., J. Fuchs, et al. (1996). Successful hybridization between Lolium and Dactylis. Plant Breeding 115(2): 101-105. Inst. Pflanzengenetik Kulturpflanzenforschung, Correnstrase 3, D-06466 Gatersleben, Germany

Ohlander, L., G. Bergkvist, et al. (1996). Yield of catch crops and spring barley as affected by time of undersowing. Acta Agriculturae Scandinavica Section B Soil and Plant Science 46(3): 161-168. {a} Dep. Crop Production Sci., Swedish Univ. Agric. Sci., P.O. Box 7043, S-750 07 Uppsala, Sweden

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Ouazzani, N., K. Bousselhaj, et al. (1996). Reuse of wastewater treated by infiltration percolation. Water Science and Technology 33(10-11): 401-408. Fac. Sci. Semlalia, Dep. Biol., B.P.S. 15, Marrakech, Morocco

Ourry, A., J. H. MacDuff, et al. (1996). The relationship between mobilization of N reserves and changes in translatable messages following defoliation in Lolium temulentum L. and Lolium perenne L. Journal of Experimental Botany 47(299): 739-747. {a} LA INRA Physiologie Biochimie Vegetales, IRBA Univ. F-14032 Caen Cedex, France

Ourry, A., J. H. Macduff, et al. (1996). Diurnal variation in the simultaneous uptake and 'sink' allocation of NH-4+ and NO-3- by Lolium perenne in flowing solution culture. Journal of Experimental Botany 47(305): 1853-1863. {a} Inst. Grassland Environmental Research, Aberystwth, Dyfed SY23 3EB, UK

Pacakova, V., J. Pechancova, et al. (1996). Size-exclusion liquid chromatography and capillary electrophoresis of pollen allergens. Journal of Chromatography B Biomedical Applications 681(1): 47-53. {a} Dep. Analytical Chemistry, Charles University, Alberto 2030, 128 40 Prague 2, Czech Republic

Parronchi, P., S. Mohapatra, et al. (1996). Effects of interferon-alpha on cytokine profile, T cell receptor repertoire and peptide reactivity of human allergen-specific T cells. European Journal of Immunology 26(3): 697-703. {a} Clinical Immunol. Dep., Ist. di Clinica Med. 3, Viale Morgagni 85, I-50134 Florence, Italy

Paterson, E., E. A. S. Rattray, et al. (1996). Effect of elevated atmospheric CO-2 concentration on C-partitioning and rhizosphere C-flow for three plant species. Soil Biology and Biochemistry 28(2): 195-201. {a} Department Plant Soil Science, Meston Building, University Aberdeen, Aberdeen AB9 2UE, UK

Pearson, E. G., C. B. Andreasen, et al. (1996). Atypical pneumonia associated with ryegrass staggers in calves. Journal of the American Veterinary Medical Association 209(6): 1137-1142. {a} Coll. Veterinary Med., Oregon State Univ., Corvallis, OR 97331, USA

Perez, S. A., E. Eymar, et al. (1996). Effects of foliar sprays on turfgrass of an extract of peat and kelp amended with iron. Journal of Plant Nutrition 19(8-9): 1179-1188. {a} Dep. Quimica Agricola C-VII, Fac. Ciencias, Universidad Autonoma, 28049 Madrid, Spain

Peyraud, J. L., E. A. Comeron, et al. (1996). The effect of daily herbage allowance, herbage mass and animal factors upon herbage intake by grazing dairy cows. Annales de Zootechnie Paris 45(3): 201-217. {a} Station recherches la vache laitiere, Cent. recherche Inra Rennes, 35590 Saint-Gilles, France

Plebani, M., F. Borghesan, et al. (1996). Receiver-operating characteristic (ROC) curves: A fundamental tool for improving the clinical usefulness of in vitro IgE tests. Allergy Copenhagen 51(6): 407-411. {a} Lab. Cent., Azienda Ospedale Padova, Via Giustiniani, 2, 35128 Padova, Italy

Plebani, M., F. Borghesan, et al. (1996). Clinical evaluation of a new quantitative method for specific IgE antibodies. European Journal of Clinical Chemistry and Clinical Biochemistry 34(7): 579-584. {a} Lab. Centrale, Ospedale Civile, Via Giustiniani 2, I-35128 Padova, Italy

Price, E. A. C. and M. J. Hutchings (1996). The effects of competition on growth and form in Glechoma hederacea. Oikos 75(2): 279-290. {a} Dep. Environmental Geographical Sci., Manchester Metropolitan Univ., Manhester M1 5GD, UK

Ravel, C. and G. Charmet (1996). A comprehensive multisite recurrent selection strategy in perennial ryegrass. Euphytica 88(3): 215-226. INRA Stn. d'Amelioration Plantes, 63039 Clermont Ferrand, France

Reddy, P. V., C. K. Lam, et al. (1996). Mutualistic fungal endophytes express a proteinase that is homologous to proteases suspected to be important in fungal pathogenicity. Plant Physiology Rockville 111(4): 1209-1218. {a} Cent. Agric. Molecular Biol., Rutgers Univ., New Brunswick, NJ 08903, USA

Reed, K. F. M. (1996). Improving the adaptation of perennial ryegrass, tall fescue, phalaris, and cocksfoot for Australia. New Zealand Journal of Agricultural Research 39(4): 457-464. Agric. Victoria Pastoral Vet. Inst., Private Bag 105, Hamilton, VIC 3300, Australia

Reeves, M., W. J. Fulkerson, et al. (1996). Forage quality of kikuyu (Pennisetum, clandestinum): The effect of time of defoliation and nitrogen fertiliser application and in comparison with perennial ryegrass (Lolium perenne). Australian Journal of Agricultural Research 47(8): 1349-1359. {a} NSW Agric., Wollongbar Agric. Inst., Wollongbar, NSW 2477, Australia

Reheul, D. and A. Ghesquiere (1996). Breeding perennial ryegrass with better crown rust resistance. Plant Breeding 115(6): 465-469. Rijksstation Plantenveredeling, Burg. Van Gansberghelaan 109, B-9820 Merelbeke, Belgium

Repo, T. and S. Pulli (1996). Application of impedance spectroscopy for selecting frost hardy varieties of English ryegrass. Annals of Botany London 78(5): 605-609. {a} Univ. Joensuu, Fac. Forestry, P.O. Box 111, FIN-80101 Joensuu, Finland

Rida, A. M. M. A. (1996). The influences of earthworms on the absorption of potassium by rye grass in soils contaminated with five trace elements. Soil Biology and Biochemistry 28(8): 1045-1051. Lab. Zooecol. Sol, CEFE, CNRS, 1919 Route de Mende, BP 5051, 34033 Montpellier Cedex 1, France

Rida, A. M. M. A. (1996). Growth and trace element concentration in earth worms and plants in non-contaminated soils and soils contaminated with Cd, Cu, Fe, Pb, and zinc: Plant-soil-earthworm interactions. Soil Biology and Biochemistry 28(8): 1037-1044. Lab. Zooecol. Sol, CEFE, CNRS, 1919 Route Mende, BP 5051, 34033 Montpliier Cedex 1, France

Rida, A. M. M. A. (1996). Growth and trace element concentration in earth worms and plants in non-contaminated soils and soils contaminated with Cd, Cu, Fe, Pb, and zinc: Soil-earthworm interactions. Soil Biology and Biochemistry 28(8): 1029-1035. Lab. Zooecol. Sol, CEFE, CNRS, 1919 Route de Mende, BP 5051, 34033 Montpellier Cedex 1, France

Roche, J. R., P. Dillon, et al. (1996). The effect of closing date of pasture in autumn and turnout date in spring on sward characteristics, dry matter yield and milk production of spring-calving dairy cows. Irish Journal of Agricultural and Food Research 35(2): 127-140. {a} Teagasc, Moorepark Res. Cent., Fermoy Co., Cork, Ireland

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Zwierzykowski, Z. (1996). Interspecific and intergeneric hybrids of the Lolium-Festuca complex obtained in Poland in the years 1964-1994 and maintained in the collection at the Institute of Plant Genetics in Poznan. Journal of Applied Genetics 37(1): 79-100. Inst. Plant Genet., Polish Acad. Sci., Strzeszynska 34, 60-479 Poznan, Poland

Ale, A. N. (1995). Ergot (Claviceps purpurea) and some other fungal flora on sweet grasses within the Duisburg area. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 60(2a): 295-306. Hans-Sachsstr. 75, 47166 Duisburg, Germany

Alonso, A., K. Mouchian, et al. (1995). Usefulness of soluble fractions in pollen immunotherapy. Prensa Medica Argentina 82(5): 418-423. Hosp. de Clinicas "Jose de San Martin", Cent. de Alergia y de Med. Nuclear, Cordoba 2351, Buenos Aires, Argentina

Anderson, S. F. and A. E. Dudeck (1995). An evaluation of cool-season turfgrasses for overseeding fairway and putting green bermudagrass. Soil and Crop Science Society of Florida Proceedings 54: 5-12. {a} Environ. Hort. Dep., Univ. Fla., Gainesville, FL 32611-0670, USA

Arbones, E. and J. A. Oliveira (1995). Relationships between agronomic traits and ecogeographical factors in natural populations of perennial ryegrass from the North of Spain. Investigacion Agraria Produccion y Proteccion Vegetales 10(3): 325-340. Cent. Investigaciones Agrarias Mabegondo, Apdo. 10, 15080 La Coruna, Spain

Astwood, J. D., S. S. Mohapatra, et al. (1995). Pollen allergen homologues in barley and other crop species. Clinical and Experimental Allergy 25(1): 66-72. {a} Dep. Plant Sci., Univ. Manitoba, Winnipeg, Manitoba R3T 2N2, Canada

Avellaneda, M. O. and M. A. Jauregui (1995). Comparing potassium soil tests with a flexible function and a modifier variable. Soil Science Society of America Journal 59(4): 1081-1085. {a} PRODETEC FinnIDA, NICABOX 115, PO Box 52-7444, Miami, FL 33152-7444, USA

Bailey, J. S. (1995). Liming and nitrogen efficiency: Some effects of increased calcium supply and increased soil pH on nitrogen recovery by perennial ryegrass. Communications in Soil Science and Plant Analysis 26(7-8): 1233-1246. Dep. Agric. North. Irel., Agric. Environ. Sci. Div., Newforge Lane, Belfast BT9 5PX, Northern Ireland

Ball, O. J. P., R. A. Prestidge, et al. (1995). Interrelationships between Acremonium lolii, Peramine, and Lolitrem B in Perennial Ryegrass. Applied and Environmental Microbiology 61(4): 1527-1533. {a} AgRes. Ruakura Agric. Res. Cent., Private Bag 3123, Hamilton, New Zealand

Banfi, G., F. Ferrara, et al. (1995). Multicentre evaluation of capture assay radim liquid allergen for measurement of specific IgE antibodies. European Journal of Clinical Chemistry and Clinical Biochemistry 33(10): 755-759. {a} Dip. Med. Lab., H. San Raffaele, Via Olgettina 60, I-20132 Milano, Italy

Barker, G. M., A. C. Firth, et al. (1995). Susceptibility to Deroceras reticulatum feeding among Brachiaria species. Tests of Agrochemicals and Cultivars(16): 82-83. {a} Ruakura Agric. Res. Cent., AgRes., Private Bag 323, Hamilton, New Zealand

Barthram, G. T. and S. A. Grant (1995). Interactions between variety and the timing of conservation cuts on species balance in Lolium perenne-Trifolium repens swards. Grass and Forage Science 50(2): 98-105. {a} MLURI, Hartwood Res. Stn., Shotts, Lanarkshire ML7 4JY, UK

Bell, C. E. (1995). Broccoli (Brassica oleracea var. botrytis) yield loss from Italian ryegrass (Lolium perenne) interference. Weed Science 43(1): 117-120. Coop. Ext., Univ. Calif., Holtville, CA 92250, USA

Belli, M., U. Sansone, et al. (1995). The effect of fertilizer applications on 137Cs uptake by different plant species and vegetation types. Journal of Environmental Radioactivity 27(1): 75-89. {a} ANPA-DISP, Via V. Brancati 48, 00144 Roma, Italy

Bennet, R. J. (1995). The use of hematoxylin in screening perennial ryegrass (Lolium perenne) for aluminium tolerance. South African Journal of Plant and Soil 12(2): 65-72. Roodeplaat Grasslands Inst., Private Bag X9059, Pietermaritzburg 3200, South Africa

Bo, S. and J. Oyen (1995). Perennial ryegrass in pure stand and in mixtures with other grass species. Norsk Landbruksforsking 9(1-2): 29-37. {a} Planteforsk Kvithamar, B-7500 Stjordal, Norway

Bowen, P. and S. Freyman (1995). Ground Covers Affect Raspberry Yield, Photosynthesis, and Nitrogen Nutrition of Primocanes. Hortscience 30(2): 238-241. Pacific Agric. Res. Cent., Box 1000, Agassiz, BC V0M 1A0, Canada

Bredemeijer, G. M. M. and G. Esselink (1995). Sugar metabolism in cold-hardened Lolium perenne varieties. Plant Varieties and Seeds 8(3): 187-195. {a} Cent. Plant Breeding Reproduction Res., CPRO-DLO, PO Box 16, NL-6700 AA Wageningen, Netherlands

Bredemeijer, G. M. M. and G. Esselink (1995). Glucose 6-phosphate dehydrogenase during cold-hardening in Lolium perenne. Journal of Plant Physiology 145(4): 565-569. Centre Plant Breeding and Reprod. Res., CPRO-DLO, P.O. Box 16, NL-6700 AA Wageningen, Netherlands

Bufe, A., G. Schramm, et al. (1995). Major allergen Phl p Vb in timothy grass is a novel pollen RNase. FEBS Letters 363(1-2): 6-12. {a} Research Inst. Borstel, Allergol., Parkallee 22, D-23845 Borstel, Germany

Cadot, P., M. Lejoly, et al. (1995). The effect of sucrose on the quality of ryegrass (Lolium perenne) pollen extracts. Allergy Copenhagen 50(12): 941-951. {a} Lab. Clin. Immunol., Catholic Univ. Leuven, Univ. Hosp., Herestr. 49, 3000 Leuven, Belgium

Calkins, J. B. and B. T. Swanson (1995). Comparison of conventional and alternative nursery weed management strategies. Weed Technology 9(4): 761-767. Dept. Hort. Sci., Univ. Minn., St. Paul, MN 55108, USA

Casler, M. D. (1995). Patterns of variation in a collection of perennial ryegrass accessions. Crop Science 35(4): 1169-1177. Dep. Agron., Univ. Wis., Madison, WI 53706-1597, USA

Charmet, G. and F. Balfourier (1995). The use of geostatistics for sampling a core collection of perennial ryegrass populations. Genetic Resources and Crop Evolution 42(4): 303-309. INRA, Station d'Amelioration Plantes, F63039 Clermont-Ferrand, Cedex, France

Charmet, G. and B. Debote (1995). Breeding value of base populations derived from 'contiguous' clusters in perennial ryegrass. Plant Breeding 114(3): 235-238. INRA Stn. Amelioration Plantes, F-63039 Clermont-Ferrand Cedex 02, France

Chauhan, T. R. (1995). Dried ryegrass (Lolium perene) grown in combination with berseem/lucerne as a replacement for conventional concentrate mixture in the ration of buffalo bull calves. Indian Journal of Animal Sciences 65(1): 67-73. Buffalo Nutr. Div., Central Inst. Res. Buffaloes, Hisar, Haryana 125 002, India

Chen, C., D. A. Sleper, et al. (1995). Correction of PREVIEWS 98261787. RFLP and cytogenetic analyses of hybrids between Festuca mairei and Lolium perenne. Correction of abstract. Erratum published in CROP SCIENCE Vol. 35. Iss. 4. 1995. p. 1244. Crop Science 35(3): 720-725. {a} Dep. Agron., Univ. Mo., Columbia, MO 65211, USA

Chen, C., D. A. Sleper, et al. (1995). RFLP and cytogenetic analyses of hybrids between Festuca mairei and Lolium perenne. Crop Science 35(3): 720-725. {a} Dep. Agron., Univ. Mo., Columbia, MO 65211, USA

Chesson, A., A. H. Gordon, et al. (1995). Pectic polysaccharides of mesophyll cell walls of perennial ryegrass leaves. Phytochemistry Oxford 38(3): 579-583. {a} Rowett Res. Inst., Bucksburn, Aberdeen AB2 9SB, UK

Christensen, M. J. (1995). Variation in the ability of Acremonium endophytes of Lolium perenne, Festuca arundinacea and F. pratensis to form compatible associations in the grasses. Mycological Research 99(4): 466-470. AgRes., Grasslands Res. Centre, Private Bag 11008, Palmerston North, New Zealand

Clark, H., P. C. D. Newton, et al. (1995). The influence of elevated CO-2 and simulated seasonal changes in temperature on tissue turnover in pasture turves dominated by perennial ryegrass (Lolium perenne) and white clover (Trifolium repens). Journal of Applied Ecology 32(1): 128-136. AgRes. Grasslands, Grasslands Res. Cent., Fitzherbert West, Private Bag 11008, Palmerston North, New Zealand

Collett, M. A., R. E. Bradshaw, et al. (1995). A mutualistic fungal symbiont of perennial ryegrass contains two different pyr4 genes, both expressing orotidine-5'-monophosphate decarboxylase. Gene Amsterdam 158(1): 31-39. {a} Dep. Microbiology Genetics, Massey Univ., Palmerston North, New Zealand

Condron, L. M., H. J. Di, et al. (1995). Agronomic effectiveness of partially acidulated phosphate rock fertilisers in selected New Zealand soils. Australian Journal of Experimental Agriculture 35(3): 387-393. {a} Dep. Soil Sci., Lincoln Univ., PO Box 84, Canterbury, New Zealand

Crush, J. R. (1995). Effect of VA mycorrhizas on phosphorus uptake and growth of white clover (Trifolium repens L.) growing in association with ryegrass (Lolium perenne L.). New Zealand Journal of Agricultural Research 38(3): 303-307. AgResearch, Ruakura Agric. Centre, Privte Bag 3123, Hamilton, New Zealand

Crutchfield, B. A. and D. A. Potter (1995). Tolerance of cool-season turfgrasses to feeding by Japanese Beetle and southern masked chafer (Coleoptera: Scarabaeidae) grubs. Journal of Economic Entomology 88(5): 1380-1387. {a} Plant Industries Div., West Virginia Dep. Agric., 1900 Kanawha Blvd. E., Charleston, WV 25305-0191, USA

Crutchfield, B. A. and D. A. Potter (1995). Damage relationships of Japanese beetle and southern masked chafer (Coleoptera: Scarabaeidae) grubs in cool-season turfgrasses. Journal of Economic Entomology 88(4): 1049-1056. {a} West Va. Dep. Agric., Plant Industries Div., 1900 Kanawha Blvd. East, Charlestown, WV 25305-0191, USA

Davies, D. A., M. Fothergill, et al. (1995). Animal production evaluation of herbage varieties: 2. Comparison of Aberystwyth S184, AberEndura and grasslands Huia white clovers. Grass and Forage Science 50(3): 227-240. {a} IGER, Bronydd Mawr Res. Station, Trecastle, Near Brecon, Powys LD3 8RD, UK

Del, P. G., C. M. De, et al. (1995). Preferential expression of CD30 by human CD4+ T cells producing Th2-type cytokines. FASEB Journal 9(1): 81-86. {a} Ist. Clin. Med. 3, Viale Morgagni 85, 50134 Florence, Italy

Dempster, L. C. and S. J. I. Holmes (1995). The incidence of strains of barley yellow dwarf virus in perennial ryegrass crops in south-west and central Scotland. Plant Pathology Oxford 44(4): 710-717. {a} Dep. Virol., Int. Inst. Tropical Agriculture, PMB 5320, Ibadan, Nigeria

Di, H. J., R. Harrison, et al. (1995). An isotope injection technique to measure agronomic effectiveness of different phosphate sources in undisturbed soils. Australian Journal of Experimental Agriculture 35(4): 489-493. {a} Soil Sci. Plant Univ., Fac. Agric., Univ. West. Aust., Nedlands, WA 6009, Australia

Dick, R. P. and R. A. Christ (1995). Effects of long term residue management and nitrogen fertilization on availability and profile distribution of nitrogen. Soil Science 159(6): 402-408. {a} Dep. Crop and Soil Sci., Agric. and Life Sci. Bldg., Room 3067, Oregon State Univ., Corvallis, OR 97331-7306, USA

Distel, R. A., E. A. Laca, et al. (1995). Patch selection by cattle: Maximization of intake rate in horizontally heterogeneous pastures. Applied Animal Behaviour Science 45(1-2): 11-21. {a} Dep. Range Wildlife Manage., Tex. Tech. Univ., Lubbock, TX 79409-2125, USA

Dou, H. and D. Steffens (1995). Recovery of 15N labelled urea as affected by fixation of ammonium by clay minerals. Zeitschrift fuer Pflanzenernaehrung und Bodenkunde 158(4): 351-354. Inst. Plant Nutr., Justus-Liebig-Univ., Suedanlage 6, D-35390 Giessen, Germany

Dryden, G. M., K. J. Stafford, et al. (1995). Comminution of roughages by red deer (Cervus elaphus) during the prehension of feed. Journal of Agricultural Science 125(3): 407-414. {a} Dep. Animal Production, University Queensland, Gatton College, Lawes, QLD 4343, Australia

Dufrasne, I., M. Gielen, et al. (1995). Effects of a grazing period on performance of finishing bulls: Comparison with an indoor finishing system. Animal Science Pencaitland 60(1): 75-80. {a} Univ. Liege, Faculte Med. Veterinaire-B43, Serv. Nutrition, Sart-Tilman, 4000 Liege, Belgium

Edwards, G. R., A. J. Parsons, et al. (1995). Relationship between vegetation state and bite dimensions of sheep grazing contrasting plant species and its implications for intake rate and diet selection. Grass and Forage Science 50(4): 378-388. {a} Dep. Biol., Imperial Coll. Silwood Park, Ascot, Berks SL5 7PY, UK

Fidanza, M. A. and P. H. Dernoeden (1995). Evaluation of an enzyme-linked immunosorbent assay method for predicting brown patch infection in turf. Hortscience 30(6): 1263-1265. Dep. Agron., Univ. Md., College Park, MD 20742-5821, USA

Fisher, A. and D. Wilman (1995). Effect of interval between harvests and spring-applied fertilizer N on the growth of white clover in a mixed sward. Grass and Forage Science 50(2): 162-171. {a} Dep. Agric. Sci., Univ. Wales, Aberystwyth, Dyfed SY23 3DD, UK

Fisher, G. E. J. and D. J. Roberts (1995). The effects of stocking rate in spring, and topping on sward characteristics and dairy cow performance in a poor grass growing season. Grass and Forage Science 50(4): 461-465. {a} SAC Auchincruive, Ayr KA6 5HW, UK

Folling, M., S. Madsen, et al. (1995). Effect of nurse culture and conditioned medium on colony formation and plant regeneration from Lolium perenne protoplasts. Plant Science Limerick 108(2): 229-239. {a} Dep. Agric. Sci., Plant Breeding Biotechnol., Royal Veterinary Agric. Univ., Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark

Ford, T. M., R. F. Bara, et al. (1995). Registration of 'Affinity' perennial ryegrass. Crop Science 35(4): 1220-1221. {a} Lebanon Turf Products, P.O. Box 10, Huntsville, UT 84317, USA

Fountain, D. W., C. A. Cornford, et al. (1995). Benzoic acid and hydroxylated benzoic acids in pollen. Grana 34(3): 213-216. {a} Dep. Plant Biol. Biotechnol., Massey Univ., Palmerston North, New Zealand

Francis, G. S., R. J. Haynes, et al. (1995). The effects of a nitrification inhibitor on leaching losses and recovery of mineralized nitrogen by a wheat crop after ploughing-in temporary leguminous pastures. Fertilizer Research 41(1): 33-39. {a} New Zealand Inst. Crop Food Res. Limited, Private Bag 4704, Christchurch, New Zealand

Fry, J. D., P. H. Dernoeden, et al. (1995). Safety and Efficacy of Halosulfuron-methyl for Yellow Nutsedge Topkill in Cool-season Turf. Hortscience 30(2): 285-288. {a} Dep. Horticulture Forestry Recreation Resour., Kansas State Univ., Manhattan, KS 66506, USA

Fulkerson, W. J. and K. Slack (1995). Leaf number as a criterion for determining defoliation time for Lolium perenne: 2. Effect of defoliation frequency and height. Grass and Forage Science 50(1): 16-20. {a} NSW Agric., Wollongbar Agric. Inst., Wollongbar, NSW 2477, Australia

Gagnon, R., Y. Boutin, et al. (1995). Lol p I-specific IgE and IgG synthesis by peripheral blood mononuclear cells from atopic subjects in SCID mice. Journal of Allergy and Clinical Immunology 95(6): 1268-1275. {a} Cent. Recherche Immunol. Allergie, Room 9800, Cent. Recherche du C.H.U.L., 2705 boul. Laurier, Ste-Foy, PQ G1V 4G2, Canada

Garcia, L., M. C. Garcia, et al. (1995). Coated diammonium phosphate effect on soil nitrogen lixiviation and its relation with properties kinetics. Communications in Soil Science and Plant Analysis 26(19-20): 3405-3416. {a} Dep. Quimica Analisis Agricola, Univ. Politecnia Madrid, Escuela Tecnica Superior Ingenieros Agronomos, Ciudad Univ., s/n 28040 Madrid, Spain

Gilliland, T. J. (1995). Identification of Lolium perenne L. diploid amenity and tetraploid forage cultivars by allozyme variation in phosphoglucoisomerase. Tests of Agrochemicals and Cultivars(16): 90-91. Dep. Agric. N. Ireland, Plant Test. Stn., Belfast BT6 9SH, UK

Gilliland, T. J. (1995). Identification of Lolium perenne L. diploid forage cultivars by allozyme variation in phosphoglucoisomerase. Tests of Agrochemicals and Cultivars(16): 88-89. Dep. Agric. N. Ireland, Plant Test. Stn., Belfast BT6 9SH, UK

Gilliland, T. J. (1995). Effect of harvest date and cultivar maturity on the composition of newly sown perennial ryegrass (Lolium perenne L.) mixtures. Irish Journal of Agricultural and Food Research 34(2): 143-150. Dep.. Agric. of Northern Ireland, Plant Testing Stn., Crossnacreevy, Belfast, UK

Gilliland, T. J., M. S. Camlin, et al. (1995). Effect of harvest date and cultivar maturity on perennial ryegrass (Lolium perenne L.) yield and digestibility. Irish Journal of Agricultural and Food Research 34(2): 133-142. Dep. Agric. Northern Ireland, Plant Testing Station, Crossnacreevy, Belfast, UK

Gorissen, A., G. J. H. Van, et al. (1995). Grass root decomposition is retarded when grass has been grown under elevated CO-2. Soil Biology and Biochemistry 27(1): 117-120. {a} DLO-Res. Inst. Agrobiol. Soil Fertility, P.O. Box 14, 6700 AA Wageningen, Netherlands

Greer, D. H., W. A. Laing, et al. (1995). Photosynthetic responses of thirteen pasture species to elevated CO-2 and temperature. Australian Journal of Plant Physiology 22(5): 713-722. {a} Horticultural Food Res. Inst., Private Bag 11030, Palmerston North, New Zealand

Greer, D. H. and L. A. Robinson (1995). Temperature control of the development of frost hardiness in two populations of Leptospermum scoparium. Tree Physiology 15(6): 399-404. Plant Physiol. Group, Horticulture and Food Res. Inst., Private Bag 11030, Palmerston North, New Zealand

Guo, Y., R. Schulz, et al. (1995). Genotypic differences in uptake and distribution of cadmium and nickel in plants. Angewandte Botanik 69(1-2): 42-48. {a} Inst. Plant Nutrition, Univ. Hohenheim, D-70593 Stuttgart, Germany

Hall, M. H. (1995). Plant Vigor and Yield of Perennial Cool-Season Forage Crops When Summer Planting Is Delayed. Journal of Production Agriculture 8(2): 233-238. Dep. Agronomy, Pennsylvania State Univ., University Park, PA 16802, USA

Haris, A. (1995). Further data on the food-choice of wheat-sawflies (Dolerus spp., Hymenoptera, Tenthredinidae). Acta Phytopathologica et Entomologica Hungarica 30(3-4): 255-263. {a} Plant Health Soil Conservation Station, P.O. Box 340, H-1519 Budapest, Hungary

Hassan, L. and R. N. Jones (1995). Colchicine-induced heritable modification of chiasma frequency and distribution in perennial ryegrass (Lolium perenne). Genome 38(2): 356-361. {a} Inst. Biol. Sci., Univ. Wales Aberystwyth, Sir George Stapledon Build., Penglais, Aberystwyth, Wales SY23 3DD, UK

Hayward, M. D., G. H. Degenaars, et al. (1995). Isozyme procedures for the characterization of germplasm, exemplified by the collection of Lolium perenne L. Genetic Resources and Crop Evolution 42(4): 327-337. {a} Inst. Grassland Environmental Research, WElsh Plant Breeding Station, Aberystwyth, UK

Hazard, L. and M. Ghesquiere (1995). Evidence from the use of isozyme markers of competition in swards between short-leaved and long-leaved perennial ryegrass. Grass and Forage Science 50(3): 241-248. {a} INRA, Station Amelioration Plantes Fourrageres, F-86600 Lusignan, France

Hopkins, A., P. J. Murray, et al. (1995). Productivity and nitrogen uptake of ageing and newly sown swards of perennial ryegrass (Lolium perenne L.) at different sites and with different nitrogen fertilizer treatments. European Journal of Agronomy 4(1): 65-75. {a} Inst. Grassland, Environmental Res., North Wyke Res. Station, Okehampton, Devon, EX20 2SB, UK

Horner, J. M. and J. N. B. Bell (1995). Effects of fluoride and acidity on early plant growth. Agriculture Ecosystems and Environment 52(2-3): 205-211. {a} Digby Stuart Coll., Roehampton Inst., Roehampton Lane, London SW15 5PH, UK

Hoskin, S. O., K. J. Stafford, et al. (1995). Digestion, rumen fermentation and chewing behaviour of red deer fed fresh chicory and perennial ryegrass. Journal of Agricultural Science 124(2): 289-295. {a} Dep. Anim. Sci., Massey Univ., Palmerston North, New Zealand

Hsiang, T., C. Wu, et al. (1995). Pythium root rot associated with cool-season dieback of turfgrass in Ontario and Quebec. Canadian Plant Disease Survey 75(2): 191-195. Dep. Environ. Biol., Univ. Guelph, Guelph, ON N1G 2W1, Canada

Hsiao, C., N. J. Chatterton, et al. (1995). Molecular phylogeny of the Pooideae (Poaceae) based on nuclear rDNA (ITS) sequences. Theoretical and Applied Genetics 90(3-4): 389-398. {a} USDA-ARS, Forage Range Res. Lab., Utah State Univ., Logan, UT 84322-6300, USA

Hume, D. E., T. B. Lyons, et al. (1995). Evaluation of 'Grasslands Puna' chicory (Cichorium intybus L.) in various grass mixtures under sheep grazing. New Zealand Journal of Agricultural Research 38(3): 317-328. AgResearch, Grasslands Res. Centre, Private Bag 11008, Palmerston North, New Zealand

Humphreys, M. O. (1995). Multitrait response to selection in Lolium perenne L. (perennial ryegrass) populations. Heredity 74(5): 510-517. Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Jenkins, G. and G. Jimenez (1995). Genetic control of synapsis and recombination in Lolium amphidiploids. Chromosoma Berlin 104(3): 164-168. {a} Inst. Biol. Sci., Sir George Stapledon Building, Univ. Wales, Aberystwyth, Dyfed SY23 3DD, UK

Jimenez, G. and G. Jenkins (1995). Lateral element lengths and nuclear disposition in Lolium. Heredity 75(3): 273-280. {a} Inst. Biol. Sci., Sir George Stapledon Building, Univ. Wales, Aberystwyth, Dyfed SY23 3DD, UK

Joost, R. E. (1995). Acremonium in fescue and ryegrass: Boon or bane? A review. Journal of Animal Science 73(3): 881-888. Plant Sci. Unit, Univ. Missouri-Columbia, Columbia, MO 65211, USA

Kanno, T. (1995). Study on productivity and utilization of tropical and temperate grasses under intensive grazing. Sochi Shikenjo Kenkyu Hokoku(52): 19-109. Dep. Grassl. Plann., Natl. Grassland Res. Inst., 768 Senbonmatsu, Nishinasuno, Tochigi 329-27, Japan

Kawabe, Y. E. (1995). Pasture improvement by introducing temperate grasses into native grassland under the sub-tropical low rainfall climatic conditions of North-Western New South Wales. Nippon Sochi Gakkai Shi 40(4): 351-361. PO Box W358, Tamworth NSW, Australia

Konarev, A. V., I. O. Vvedenskaya, et al. (1995). Use of prolamine polymorphism in studying genetic resources of forage grasses. Genetic Resources and Crop Evolution 42(3): 197-209. {a} N. I. Vavilov Institute of World Plant Genetic Resources, 42 Herzen Street, St. Petersburg 190000, Russia

Kozak, N. V. (1995). Effect of long-term sodding of orchard spacings by cereals on the humic state of dark gray forest podzolized soil. Agrokhimiya(10): 10-20. Inst. Hortic., Ukr. Acad. Agrar. Sci., Kiev, Ukraine

Ledgard, S. F., M. S. Sprosen, et al. (1995). Productivity of white clover cultivars under intensive grazing, as affected by high nitrogen fertiliser application. New Zealand Journal of Agricultural Research 38(4): 473-482. {a} AgResearch, Ruakura Agric. Research Centre, Private Bag 3123, Hamilton, New Zealand

Lewis, G. C. and B. Vaughan (1995). Evaluation of hydroponic culture of ten genotypes of perennial ryegrass on infection by the fungal endophyte Acremonium lolii. Tests of Agrochemicals and Cultivars(16): 80-81. Inst. Grassland Environ. Res., North Wyke, Okehampton, Devon EX20 2SB, UK

Linde, D. T., T. L. Watschke, et al. (1995). Surface runoff assessment from creeping bentgrass and perennial ryegrass turf. Agronomy Journal 87(2): 176-182. Dep. Agronomy, Pennsylvania State Univ., 116 ASI Build., University Park, PA 16802, USA

Liu, H., R. I. Hull, et al. (1995). Comparing cultivars of three cool-season turf-grasses for potassium uptake kinetics and potassium recovery in the field. Journal of Plant Nutrition 18(3): 467-485. {a} Dep. Plant Sci., Lipman Hall, Cook Coll., P.O. Box 231, Rutgers, State Univ. New Jersey, New Brunswick, NJ 08903, USA

Liu, H., R. J. Hull, et al. (1995). Comparing cultivars of three cool-season turf-grasses for phosphate uptake kinetics and phosphorus recovery in the field. Journal of Plant Nutrition 18(3): 523-540. {a} Dep. Plant Sci., Cook Coll., P.O. Box 231, Rutgers, State Univ. New Jersey, New Brunswick, NJ 08903, USA

Lopez, F. A., N. Balcazar, et al. (1995). The recycling of Linz-Donawitz (LD) converter slag by use as a liming agent on pasture land. Waste Management and Research 13(6): 555-568. {a} Dep. Materials Recycling, Natl. Cent. Metallurgical Res. (CSIC), Avda. Gregorio del Amo 8, 28040 Madrid, Spain

Lowe, K. F. and T. M. Bowdler (1995). Growth, persistence, and rust sensitivity of irrigated, perennial temperate grasses in the Queensland subtropics. Australian Journal of Experimental Agriculture 35(5): 571-578. Queensl. Dep. Primary Ind., PO Box 96, Ipswich, QLD 4305, Australia

Mackie, D. L. A., J. F. Darbyshire, et al. (1995). Video-enhanced photography of lateral roots of perennial ryegrass, Lolium perenne L., with and without potassium fertiliser amendments. European Journal of Soil Biology 31(2): 81-86. Macaulay Land Use Res. Inst., Craigiebuckler Aberdeen AB9 2QJ, UK

Madsen, S., A. Olesen, et al. (1995). Inheritance of anther-culture response in perennial ryegrass (Lolium perenne L.). Plant Breeding 114(2): 165-168. {a} Royal Vet. Agric. Univ., Dep. Agric. Sci., Sect. Plant Breeding Biotechnol., Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark

Matthew, C., G. Lemaire, et al. (1995). A modified self-thinning equation to describe size/density relationships for defoliated swards. Annals of Botany London 76(6): 579-587. {a} Dep. Plant Sci., Massey Univ., Palmerston North, New Zealand

McKenzie, F. R. and C. D. Morris (1995). Research note: The influence of applied nitrogen on the root development of Lolium perenne L. one year after establishment. African Journal of Range and Forage Science 12(3): 131-132. {a} Agric. Victoria, 78 Henna St., Warrnambool, VIC 3280, Australia

McMullen, J. A. and P. MacPherson (1995). Yellow bartsia in the Glasgow area. Glasgow Naturalist 22(5): 526-527.

Meharg, A. A. and K. Killham (1995). Loss of exudates from the roots of perennial ryegrass inoculated with a range of micro-organisms. Plant and Soil 170(2): 345-349. {a} Institute Terrestrial Ecol., Monks Wood, Abbots Ripton, Huntingdon, Cambs. PE17 2LS, UK

Morgan, W. G., H. Thomas, et al. (1995). Unreduced gametes in interspecific hybrids in the Festuca/Lolium complex. Plant Breeding 114(3): 267-268. Inst. Grassl. Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Morris, C. A., N. R. Towers, et al. (1995). A note on the genetics of resistance or susceptibility to ryegrass staggers in sheep. New Zealand Journal of Agricultural Research 38(3): 367-371. AgRes., Ruakura Agric. Res. Centre, Private Bag 3123, Hamilton, New Zealand

Morrison, I. M. and D. Stewart (1995). Determination of lignin in the presence of ester-bound substituted cinnamic acids by a modified acetyl bromide procedure. Journal of the Science of Food and Agriculture 69(2): 151-157. {a} Scottish Crop Res. Inst., Invergowrie, Dundee DD2 5DA, UK

Mtengeti, E. J., D. Wilman, et al. (1995). Physical structure of white clover, rape, spurrey and perennial ryegrass in relation to rate of intake by sheep, chewing activity and particle breakdown. Journal of Agricultural Science 125(1): 43-50. {a} Dep. Agric. Sci., Univ. Wales, Aberystwyth, Dyfed SY23 3DD, UK

Munday, F. S. C., C. O. Miles, et al. (1995). Isolation and Structure Elucidation of Lolitrem A, a Tremorgenic Mycotoxin from Perennial Ryegrass Infected with Acremonium lolii. Journal of Agricultural and Food Chemistry 43(5): 1283-1288. New Zealand Pastoral Agric. Res. Inst. Ltd., Ruakura Agric. Res. Cent., Private Bag 3123, Hamilton, New Zealand

Murata, T., M. L. Nguyen, et al. (1995). The effects of long-term superphosphate application on soil organic matter content and composition from the intensively managed New Zealand pasture. European Journal of Soil Science 46(2): 257-264. {a} Dep. Soil Sci., Lincoln Univ., Canterbury, New Zealand

Murphy, S. L. and A. J. M. Smucker (1995). Evaluation of video image analysis and line-intercept methods for measuring root systems of alfalfa and ryegrass. Agronomy Journal 87(5): 865-868. {a} Dep. Environ. Sci., Rutgers Univ., New Brunswick, NJ 08903, USA

Nechaeva, T. I. (1995). New findings in the flora of Primorski Krai. Botanicheskii Zhurnal St Petersburg 80(7): 110-111. Far East State Univ., Vladivostok, Russia

Novy, E. M., M. D. Casler, et al. (1995). Selection for persistence of tetraploid ryegrasses and festulolium in mixture with perennial legumes. Crop Science 35(4): 1046-1051. {a} Dep. Agron., Univ. Wis.-Madison, Madison, WI 53706-1597, USA

Nussbaum, S., M. Geissmann, et al. (1995). Ozone exposure-response relationships for mixtures of perennial ryegrass and white clover depend on ozone exposure patterns. Atmospheric Environment 29(9): 989-995. {a} Swiss Fed. Res. Stn. Agric. Chem. and Environ. Hygiene, CH-3097 Liebefeld-Bern, Switzerland

Okawara, R. and S. Kaneko (1995). Comparison of chlorophyll fluorescence of cool and warm season grasses at chilling and high temperatures. Grassland Science 41(1): 26-30. Japan Turfgrass Inc., 3-6-2 Akanehama, Narashinoshi, Chiba 275, Japan

Olesen, A., M. Storgaard, et al. (1995). Somatic in vitro culture response of Lolium perenne L.: Genetic effects and correlations with anther culture. Euphytica 86(3): 199-209. Royal Vet. Agric. Univ., Dep. Agric. Sci., Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark

Paine, L., H. Harrison, et al. (1995). Establishment of asparagus with living Mulch. Journal of Production Agriculture 8(1): 35-40. {a} Dep. Agron., 1575 Linden Dr., Univ. Wisconsin, Madison, WI 53706, USA

Penning, P. D., A. J. Parsons, et al. (1995). Intake and behaviour responses by sheep, in different physiological states, when grazing monocultures of grass or white clover. Applied Animal Behaviour Science 45(1-2): 63-78. {a} Inst. Grassland Environ. Res., North Wyke, Okehampton EX20 2SB, UK

Piano, E. and P. Annicchiarico (1995). Interference effects in grass varieties grown as pure stand, complex mixture and binary mixture with white clover. Journal of Agronomy and Crop Science 174(5): 301-308. Ist. Sperimentale per le Colture Foraggere, 29 Viale Piacenza, I-20075 Lodi, Italy

Pinto, M., M. Rodriguez, et al. (1995). Effects of Linz-Donawitz (LD) slag on soil properties and pasture production in the Basque country (northern Spain). New Zealand Journal of Agricultural Research 38(1): 143-155. {a} Servicio de Investigacion y Mejora Agraria, Gobierno Vasco. B Artegan n 26, 48016 Derio, Bizkaia, Spain

Popay, A. J., D. E. Hume, et al. (1995). Field Resistance to Argentine stem weevil (Listronotus bonariensis) in different ryegrass cultivars infected with an endophyte deficient in lolitrem B. New Zealand Journal of Agricultural Research 38(4): 519-528. {a} AgResearch, Ruakura Agric. Research Centre, Private Bag 3123, Hamilton, New Zealand

Rainey, F. D. and J. B. Mitton (1995). Natural selection of UDP genotypes in an experimental population of Lolium perenne (Poaceae). American Journal of Botany 82(6): 811-815. Dep. EPO Biol., Campus Box 334, Univ. Colorado, Boulder, CO 80309-0334, USA

Rainey, F. D. and J. B. Mitton (1995). Glucose utilization by 6pgd genotypes in Lolium perenne. Molecular Ecology 4(2): 231-237. {a} Dep. Biol., Macalester Coll., 1600 Grand Ave., St. Paul, MN 55105, USA

Raskina, O. M. and V. G. Grif (1995). G/R-like banding of plant chromosomes as a result of uneven chromatin condensation in mitosis. Tsitologiya 37(1-2): 133-136. Bot. Inst., Russ. Acad. Sci., St. Petersburg, Russia

Rattray, E. A. S., E. Paterson, et al. (1995). Characterisation of the dynamics of C-partitioning within Lolium perenne and to the rhizosphere microbial biomass using 14C pulse chase. Biology and Fertility of Soils 19(4): 280-286. {a} Dep. Plant Soil Sci., Meston Building, Univ. Aberdeen, Aberdeen AB9 2UE, UK

Ravel, C., G. Charmet, et al. (1995). Influence of the fungal endophyte Acremonium lolii on agronomic traits of perennial ryegrass in France. Grass and Forage Science 50(1): 75-80. {a} INRA, Stn. d'amelioration des plantes, Domaine Crouelle, 63039 Clermont-Ferrand Cedex, France

Ravel, C., G. Charmet, et al. (1995). Comparison of predicted and observed response to selection in two breeding populations of perennial ryegrass. Plant Breeding 114(3): 262-264. INRA, Stn. Amelioration Plantes, Domaine de Crouelle, F-63039 Clermont Ferrand Cedex, France

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Riggs, K. S., J. K. Syers, et al. (1995). Effect of liming on calcium and magnesium concentrations in herbage. Journal of the Science of Food and Agriculture 69(2): 169-174. {a} Ministry Agric. Fisheries Food, Nobel House, 17 Smith Square, London SW1P 3JR, UK

Rijckaert, G. (1995). Efficiency and selectivity of fenoxaprop-ethyl in seed crops of perennial ryegrass (Lolium perenne L.). Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 60(2a): 163-170. Ministry Agric., Government Res. Centre-Gent, State Plant Breeding Station-R.v.P., Burg. Van Gansberghelaan 109, B-9820 Merelbeke, Belgium

Rose, F. C. A., W. A. Meyer, et al. (1995). Registration of 'Brightstar' Perennial Ryegrass. Crop Science 35(5): 1508-1509. {a} Pure-Seed Testing, Inc., P.O. Box 449, Hubbard, OR 97032, USA

Rose, F. C. A., W. A. Meyer, et al. (1995). Registration of 'Legacy' perennial ryegrass. Crop Science 35(4): 1210-1211. {a} Plant Sci. Dep., Cook Coll., Rutgers Univ., New Brunswick, NJ 08903, USA

Rose, F. C. A., W. A. Meyer, et al. (1995). Registration of 'Prizm' perennial ryegrass. Crop Science 35(4): 1208-1209. {a} Plant Sci. Dep., N.J. Agric. Exp. Stn., Cook Coll., Rutgers Univ., New Brunswick, NJ 08903, USA

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Ruz, J. B. E., R. E. White, et al. (1995). A comparison of nitrate leaching under clover-based pastures and nitrogen-fertilized grass grazed by sheep. Journal of Agricultural Science 125(3): 361-369. {a} Estacion Experimental Quilamapu, Chillan, Chile

Saiga, S. and H. Oikawa (1995). Release of macrominerals from a cross section of three forage grasses during water-soaking. Nippon Sochi Gakkai Shi 40(4): 381-389. {a} Fac. Agric., Iwate University, Ueda, Morioka 020, Japan

Sarathchandra, S. U., M. M. E. Di, et al. (1995). Effects of Plant-Parasitic nematodes and rhizosphere microorganisms on the growth of white clover (Trifolium repens L.) and perennial ryegrass (Lolium perenne L.). Soil Biology and Biochemistry 27(1): 9-16. AgRes., Ruakura Agric. Res. Cent., Private Bag 3123, Hamilton, New Zealand

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Sato, M., M. Yamashita, et al. (1995). Mitochondrial DNA analysis reveals cytoplasmic variation within a single cultivar of perennial ryegrass (Lolium perenne L.). Euphytica 83(3): 205-208. {a} Lab. Plant Genetics Evolution, Fac. Agric., Hokkaido Univ., Sapporo 060, Japan

Schenk, S., H. Breiteneder, et al. (1995). T-cell epitopes of Phl p 1, major pollen allergen of timothy grass (Phleum pratense): Evidence for crossreacting and non-crossreacting T-cell epitopes within grass group I allergens. Journal of Allergy and Clinical Immunology 96(6 Part 1): 986-996. {a} Inst. Gen. Exp. Pathol., Dep. Immunopathol., AKH-EBO, Waehringer Guertel 18-20, A-1090 Vienna, Austria

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Schleicher, L. C., P. J. Shea, et al. (1995). Efficacy of dissipation of dithiopyr and pendimethalin in perennial ryegrass (Lolium perenne) turf. Weed Science 43(1): 140-148. {a} Dep. Agron., Purdue Univ., Lafayette, IN 47907, USA

Schnabel, R. R., W. L. Stout, et al. (1995). Uptake of a hydrologic tracer (Bromide) by ryegrass from well and poorly-drained soils. Journal of Environmental Quality 24(5): 888-892. {a} USDA-ARS, Pasture Systems Watershed Management Res. Unit, Curtin Road, University Park, PA 16802, USA

Semiadi, G., T. N. Barry, et al. (1995). Dietary preferences of sambar (Cervus unicolor) and red deer (Cervus elaphus) offered browse, forage legume and grass species. Journal of Agricultural Science 125(1): 99-107. {a} Dep. Anim. Sci., Massey Univ., Palmerston North, New Zealand

Siegel, M. R., C. L. Schardl, et al. (1995). Incidence and compatibility of nonclavicipitaceous fungal endophytes in Festuca and Lolium grass species. Mycologia 87(2): 196-202. {a} Dep. Plant Pathol., Univ. Kentucky, Lexington, KY 40546-0091, USA

Smetham, M. L., B. A. McKenzie, et al. (1995). Establishment and productivity of three perennial grass species overdrilled into lucerne. New Zealand Journal of Agricultural Research 38(1): 85-94. Plant Sci. Dep., Lincoln Univ., P.O. Box 84, Canterbury, New Zealand

Soussana, J. F. and M. C. Arregui (1995). Effect of mixed cropping on the nitrogen nutrition and growth of perennial ryegrass and white clover. Agronomie Paris 15(2): 81-96. {a} INRA, Stn. d'Agronomie, 12, Ave. Brezet, F-63039 Clermont Ferrand Cedex 02, France

Soussana, J. F., F. Vertes, et al. (1995). The regulation of clover shoot growing points density and morphology during short-term clover decline in mixed swards. European Journal of Agronomy 4(2): 205-215. {a} Fonctionnement et Gestion de l'Ecosysteme Prairial, INRA-Agronomie, 12 Av. du Brezet, 63039 Clermont-Ferrand Cedex 02, France

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Thorogood, D. (1995). The inter-relationships of colour parameters in turfgrass: The basis of a model for turfgrass colour description. Plant Varieties and Seeds 8(1): 55-64. IGER, Welsh Plant Breeding Stn., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Valdes, C., A. R. Mantecon, et al. (1995). Herbage intake by Churra ewes grazing at two different sward heights. Journal of Animal and Feed Sciences 4(1): 1-9. {a} Dep. Produccion Animal I., Univ. Leon, Leon, Spain

Van, R. R., P. Z. Brewczynski, et al. (1995). Grass pollen immunotherapy induces highly cross-reactive IgG antibodies to group V allergen from different grass species. Allergy Copenhagen 50(3): 281-283. {a} p/o Publication Secretariat, CLB, Plesmanlaan 125, 1066 CX Amsterdam, Netherlands

Van, R. R., D. R. Hoffman, et al. (1995). Lol p XI, a new major grass pollen allergen, is a member of a family of soybean trypsin inhibitor-related proteins. Journal of Allergy and Clinical Immunology 95(5 Part 1): 970-978. {a} p/o Publication Secretariat, C.L.B., Plesmanlaan, 1066 CX Amsterdam, Netherlands

Veresoglou, D. S., J. T. Tsialtas, et al. (1995). Caesium and strontium uptake by two pasture plant species grown in organic and inorganic soils. Agriculture Ecosystems and Environment 56(1): 37-42. {a} Greek Biotope/Wetland Centre, 14th Km. Thessaloniki-Mihaniona, 57001 Thermi, Greece

Virtanen, T., E. Maggi, et al. (1995). No relationship between skin-infiltrating T-H2-like cells and allergen-specific IgE response in atopic dermatitis. Journal of Allergy and Clinical Immunology 96(3): 411-420. {a} Dep. Clinical Microbiol., Univ. Kuopio, P.O. Box 1627, FIN-70211 Kuopio, Finland

Waghorn, G. C. and I. D. Shelton (1995). Effect of condensed tannins in Lotus pedunculatus on the nutritive value of ryegrass (Lolium perenne) fed to sheep. Journal of Agricultural Science 125(2): 291-297. AgRes., Grasslands Res. Station, Private Bag 11008, Palmerston North, New Zealand

Wallace, G., W. R. Russell, et al. (1995). Extraction of phenolic-carbohydrate complexes from graminaceous cell walls. Carbohydrate Research 272(1): 41-53. {a} Rowett Res. Inst., Greenburn Rd., Bucksburn, Aberdeen AB2 9SB, UK

Wang, H. M. and A. Sletten (1995). Infection biology of bacterial wilt of forage grasses. Journal of Phytopathology Berlin 143(3): 141-145. {a} Beijing Agric. Univ., Dep. Plant Prot., Beijing 100094, China

Wang, H. M., A. Sletten, et al. (1995). Difference between Xanthomonas campestris pv. phlei and X.c pv. graminis revealed by genomic fingerprinting and restriction fragment length polymorphism patterns. Journal of Phytopathology Berlin 143(3): 153-156. {a} Beijing Agric. Univ., Dep. Plant Prot., Beijing 100094, China

Wardle, D. A., K. S. Nicholson, et al. (1995). Ecological effects of the invasive weed species Senecio jacobaea L. (ragwort) in a New Zealand pasture. Agriculture Ecosystems and Environment 56(1): 19-28. {a} AgRes., Ruakura Agric. Res. Centre, Private Bag 3123, Hamilton, New Zealand

Wayman, J., D. G. Chamberlain, et al. (1995). A comparison of the ensilage, in a anaerobic cabinet, of grass, either fresh or when thawed after deep freezing. Grass and Forage Science 50(1): 71-74. {a} Hannah Res. Inst., Ayr KA6 5HL, UK

Welch, D. and D. Scott (1995). Studies in the grazing of heather moorland in north-east Scotland. VI. 20-Year trends in botanical composition. Journal of Applied Ecology 32(3): 596-611. Inst. Terrestrial Ecol., Hill Brathens, Banchory, Kincardineshire AB31 4BY, UK

Wetherall, J. A., D. G. Armstrong, et al. (1995). Reduction of proteolysis during ensilage of perennial ryegrass by protease inhibitors. Journal of the Science of Food and Agriculture 68(4): 497-505. {a} Anim. Feed Technol. Dep., SAC, 581 King Street, Aberdeen AB9 1UD, UK

Wheeler, D. M. (1995). Relative aluminium tolerance of ten species of Gramineae. Journal of Plant Nutrition 18(11): 2305-2312. New Zealand Pastoral Agric. Research Inst. Ltd., Ruakura Research Centre, Private Bag 3123, Hamilton, New Zealand

Wheeler, D. M. (1995). Differences in aluminium tolerance of ryegrass and white clover plants grown from seed or propagated vegetatively. Journal of Plant Nutrition 18(5): 949-954. Ruakura Agric. Cent., New Zeal. Agric. Pastoral Res. Inst. Ltd., Private Bag 3123, Hamilton, New Zealand

Wheeler, D. M. and D. C. Edmeades (1995). Effect of depth and lime or phosphorus fertilizer applications on the soil solution chemistry of some New Zealand pastoral soils. Australian Journal of Soil Research 33(3): 461-476. Ruakura Res. Centre, New Zealand Pastoral Agriculture Res. Inst., Private Bag 3123, Hamilton, New Zealand

Wiesner, I., P. Samec, et al. (1995). Identification and relationships of cultivated accessions from Lolium-Festuca complex based on RAPD fingerprinting. Biologia Plantarum Prague 37(2): 185-195. Inst. Plant Molecular Biol., Czech Acad. Sci., Branisovska 31, Ceske BUdejovice, CZ-370 05, Czech Republic

Wightman, P. S. (1995). Effects of slurry application on grass/clover swards. Soil Use and Management 11(3): 149-150. AGronomy Dep., SAC, 581 King St., Aberdeen AB9 1UD, UK

Wilbourn, S., A. W. Davison, et al. (1995). The use of an unenclosed field fumigation system to determine the effects of elevated ozone on a grass-clover mixture. New Phytologist 129(1): 23-32. Dep. Agric. Environ. Sci., Ridley Building, Univ. Newcastle upon Tyne, Newcastle upon Tyne NE1 7RU, UK

Wilkins, P. W. (1995). Independence of dry matter yield and leaf yield among perennial ryegrass varieties differing in seasonal yield distribution. Grass and Forage Science 50(2): 155-161. Inst. Grassland Environ. Res., Aberystwyth, Dyfed, SY23 3EB, UK

Wilman, D., R. J. Young, et al. (1995). A note on the effect of protection from grazing on a sward containing seven grass species and white clover. Irish Journal of Agricultural and Food Research 34(2): 183-187. Welsh Inst. Rural Studies, Univ. Wales, Aberystwyth, Dyfed SY23 3DD, UK

Yamashita, M. and Y. Shimamoto (1995). Diallel analysis of freezing hardiness in perennial ryegrass (Lolium perenne L.). Grassland Science 41(3): 246-250. {a} Faculty Agriculture, Shizuoka University, 836 Oya, Shizuoka 422, Japan

Yamashita, M. and Y. Shimamoto (1995). Relation of freezing hardiness with winter survival in perennial ryegrass (Lolium perenne L.). Grassland Science 41(3): 240-245. {a} Faculty Agriculture, Shizuoka University, 836 Oya, Shizuoka 422, Japan

Yang, X., V. C. Baligar, et al. (1995). Influx, transport, and accumulation of cadmium in plant species grown at different Cd-2+ activities. Journal of Environmental Science and Health Part B Pesticides Food Contaminants and Agricultural Wastes 30(4): 569-583. {a} USDA-ARS, Beckley, WV 25802-0867, USA

Yunusa, I. A. M., D. J. Mead, et al. (1995). Process studies in a Pinus radiata-pasture agroforestry system in a subhumid temperature environment: II. Analysis of dry matter yields in the third year. Agroforestry Systems 32(2): 185-204. {a} Dep. Plant Sci., Lincoln Univ., PO Box 84, Canterbury, New Zealand

Yunusa, I. A. M., D. J. Mead, et al. (1995). Process studies in a Pinus radiata-pasture agroforestry system in a subhumid temperate environment: I. Water use and light interception in the third year. Agroforestry Systems 32(2): 163-183. {a} Dep. Plant Sci., Lincoln Univ., PO Box 84, Canterbury, New Zealand

Zhou, E. M. and F. T. Kisil (1995). Regulation of levels of serum antibodies to rye grass pollen allergen Lol pIV by an internal image anti-idiotypic monoclonal antibody. Immunology 84(3): 343-349. {a} Virol. Sect., Anim. Dis. Res. Inst., 3851 Fallowfield Rd., Nepean, Ontario K2H 8P9, Canada

Zhou, J., A. Kilian, et al. (1995). Variation of nitrate reductase genes in selected grass species. Genome 38(5): 919-927. {a} Dep. Crop. Soil Sci., Washington State Univ., Pullman, WA 99164-6420, USA

Adams, W. A. and N. Akhtar (1994). The possible consequences for herbage growth of waterlogging compacted pasture soils. Plant and Soil 162(1): 1-17. {a} Inst. Biol. Sci., Univ. Wales, Aberystwyth SY23 3DE, UK

Ahmed, M. and H. Verplancke (1994). Germination and biomass production as affected by salinity in hydrogel treated sandy soil. Pakistan Journal of Forestry 44(2): 53-61. {a} Pakistan Agric. Res. Council, Islamabad, Pakistan

Ahmed, M. and D. A. Wardle (1994). Allelopathic potential of vegetative and flowering ragwort (Senecio jacobaea L.) plants against associated pasture species. Plant and Soil 164(1): 61-68. {a} AgResearch, Ruakura Agricultural Centre, Private Bag 3123, Hamilton, New Zealand

Altepeter, F. and U. K. Posselt (1994). Regeneration of fertile plants from cell-suspension-derived small-cell colonies of Lolium perenne (L.). Plant Breeding 113(4): 327-330. {a} Landessaatzuchtanstalt, Univ. Hohenheim, D-70593 Stuttgart, Germany

Asseyr, A. F. and L. Businco (1994). Atopic sensitization in children of Somali immigrants in Italy. Journal of Investigational Allergology and Clinical Immunology 4(4): 192-196. {a} Serv. Speciale Allergol. Immunol. della Clin. Pediatr., Viale Regina Elena 324, 00161 Roma, Italy

Avellaneda, M. O. (1994). Available Potassium In Irrigated Soils Of Mendoza: Comparative study of analytical methods. Revista de la Facultad de Ciencias Agrarias Universidad Nacional de Cuyo 26(1-2): 11-22. Quimica Agricola, Fac. Ciencias Agrarias, Univ. Nacional Cuyo, Almirante Brown 500, Chacras Coria, Mendoza, Argentina

Balfourier, F. and G. Charmet (1994). Geographical patterns of isozyme variation in Mediterranean populations of perennial ryegrass. Heredity 72(1): 55-63. {a} INRA, Plant Breed. Stn., 63039 Clermont-Ferrand, France

Balfourier, F., G. Charmet, et al. (1994). Conservation of allelic multiplicity and genotypic frequency by pooling wild populations of perennial ryegrass. Heredity 73(4): 386-396. {a} INRA, Plant Breeding Stn., 63039 Clermont-Ferrand, France

Banerjee, M. R., S. J. Chapman, et al. (1994). Evaluation of a perfusion system for investigation of the sulphur supplying capacity of soils. Communications in Soil Science and Plant Analysis 25(15-16): 2613-2625. {a} Dep. Plant Soil Sci., Meston Build., Univ. Aberdeen, Aberdeen AB9 2UE, UK

Barthram, G. T. and S. A. Grant (1994). Seasonal variation in growth characteristics of Lolium perenne and Trifolium repens in swards under different managements. Grass and Forage Science 49(4): 487-495. {a} MLURI, Hartwood Res. Stn., Shotts, Lanarkshire ML7 4JY, UK

Barthram, G. T. and S. A. Grant (1994). The effects of management and plant variety on the composition, vertical structure and stock-carrying capacity of Lolium perenne/Trifolium repens pastures. Grass and Forage Science 49(3): 360-368. {a} MLURI, Hartwood Res. Stn., Shotts, Lanarkshire ML7 4JY, UK

Belesky, D. P. and J. M. Fedders (1994). Defoliation effects on seasonal production and growth rate of cool-season grasses. Agronomy Journal 86(1): 38-45. {a} USDA-ARS, Appalachian Soil and Water Conservation Research Laboratory, Beckley, WV 25802, USA

Belesky, D. P. and W. L. Stout (1994). Growth of prairie grass (Bromus willdenowii) and tall fescue X perennial ryegrass (Festuca arundinacea X Lolium perenne ) on the Appalachian plateau of southern West Virginia, USA. Grass and Forage Science 49(1): 21-24. {a} USDA, ARS Box 867, Airport Rd., Beckley, WV 25802, USA

Beuvink, J. M. W. and S. F. Spoelstra (1994). In vitro gas production kinetics of grass silages treated with different cell wall-degrading enzymes. Grass and Forage Science 49(3): 277-283. {a} P.O. Box 160, 8200 AD, Lelystad, Netherlands

Binnie, R. C. and D. M. B. Chestnutt (1994). Effect of continuous stocking by sheep at four sward heights on herbage mass, herbage quality and tissue turnover on grass/clover and nitrogen-fertilized grass swards. Grass and Forage Science 49(2): 192-202. {a} Agric. Res. Inst. Northern Ireland, Hillsborough Co., Down, UK

Blair, G. J., M. Dana, et al. (1994). A glasshouse evaluation of sulfur fertilizer sources for crops and pastures. II. A comparison of sulfur coated triple superphosphates and gypsum. Australian Journal of Agricultural Research 45(7): 1517-1523. {a} Dep. Agron. Soil Sci., Univ. New England, Armidale, NSW 2351, Australia

Bode, E., S. Kozik, et al. (1994). Comparative electron microscopical studies on the process of silicification in leaves of two different grass species. DTW Deutsche Tieraerztliche Wochenschrift 101(9): 367-372. Botanisches Inst., Tieraerztlichen Hochschule Hannover, Buenteweg 17 d, D-30559 Hannover, Germany

Bongi, G., A. Palliotti, et al. (1994). Blue-green fluorescence excited by UV laser on leaves of different species originates from cutin and is sensitive to leaf temperature. Plant Cell and Environment 17(6): 777-780. {a} Instituto Ricerche Olivicoltura, Natl. Res. Council Italy, via Madonna Alta 128, 06128, Perugia, Italy

Bredemeijer, G. M. M. and G. Esselink (1994). Phosphofructokinase in relation to sugar accumulation in cold-hardened Lolium perenne L. cultivars. Journal of Plant Physiology 143(1): 112-118. Cent. Plant Breeding and Reprod. Res., P.O. Box 16, NL-6700 AA Wageningen, Netherlands

Bullock, J. M., B. C. Hill, et al. (1994). Tiller dynamics of two grasses: Responses to grazing, density and weather. Journal of Ecology 82(2): 331-340. {a} Furzebrook Res. Stn., NERC Inst. Terrestrial Ecol., Wareham, Dorset BH20 5AS, UK

Bungy, G. A., S. V. R. Roitt, et al. (1994). Mapping of T cell epitopes of the major fraction of rye grass using peripheral blood mononuclear cells from atopics and non-atopics. II. Isoallergen clone 5A of Lolium perenne group I (Lol p I). European Journal of Immunology 24(9): 2098-2103. {a} Dep. Immunol., Univ. Coll. London Med. Sch., Arthur Stanley House, 40-50 Tottenham St., London W1P 9PG, UK

Carlson, W. R. (1994). Crossover effects of B chromosomes may be 'selfish'. Heredity 72(6): 636-638. Dep. Biol. Sci., Univ. Iowa, Iowa City, IA 52242, USA

Casanovas, M., F. Maranon, et al. (1994). Comparison of skin-prick test assay and reverse enzyme immunoassay competition (REINA-C) for biological activity of allergens. Clinical and Experimental Allergy 24(2): 134-139. {a} Lab. CBF-LETI S.A., C/SOL 5, Poligono Industrial, 28760 Tres Cantos, Madrid, Spain

Champion, R. A., S. M. Rutter, et al. (1994). Temporal variation in grazing behaviour of sheep and the reliability of sampling periods. Applied Animal Behaviour Science 42(2): 99-108. {a} Inst. Grassland Environ. Res., North Wyke, Okehampton, Devon EX20 2SB, UK

Chapman, R., A. Younger, et al. (1994). The influence of soil factors on the growth of a grass/clover sward on a restored opencast site in Northumberland, UK. Grass and Forage Science 49(4): 447-457. {a} Dep. Agric., Univ. Newcastle upon Tyne, Newcastle upon Tyne NE1 7RU, UK

Charmet, G. and F. Balfourier (1994). Influence of ecological factors on population differentiation in perennial ryegrass (Lolium perenne L.). Genetic Resources and Crop Evolution 41(3): 175-184. INRA, Stn. d'Amelioration Plantes, 63039 Clermont-Ferrand, France

Charmet, G. and F. Balfourier (1994). Isozyme variation and species relationships in the genus Lolium L. (ryegrasses, Graminaceae). Theoretical and Applied Genetics 87(6): 641-649. {a} INRA, Station Amelioration des Plantes, 63039 Clermont-Ferrand Cedex, France

Charmet, G., F. Balfourier, et al. (1994). Hierarchical clustering of perennial ryegrass populations with geographic contiguity constraint. Theoretical and Applied Genetics 88(1): 42-48. {a} INRA Stn. Amelioration Plantes, 63039 Clermont-Ferrand, France

Clarke, R. G. and D. R. Eagling (1994). Effects of pathogens on perennial pasture grasses. New Zealand Journal of Agricultural Research 37(3): 319-327. {a} Victorian Dep. Agric., Victorian Inst. Dryland Agric., Private Bag 260, Horsham, VIC 3400, Australia

Clinton, P. W. and D. J. Mead (1994). Competition for nitrogen between Pinus radiata and pasture. II. Trends in plant and soil processes. Canadian Journal of Forest Research 24(5): 889-896. {a} For. Technol. Div., N.Z. Forest Res. Inst. Ltd., P.O. Box 31-011, Christchurch, New Zealand

Clinton, P. W. and D. J. Mead (1994). Competition for nitrogen between Pinus radiata and pasture: I. Recovery of 15N after one growing season. Canadian Journal of Forest Research 24(5): 882-888. {a} For. Technol. Div., N.Z. Forest Res. Inst., P.O. Box 31-011, Christchurch, New Zealand

Cocks, P. S. (1994). Colonization of a South Australian grassland by invading mediterranean annual and perennial pasture species. Australian Journal of Agricultural Research 45(5): 1063-1076. Faculty Agriculture, Centre Legumes Mediterranean Agriculture, Univ. Western Aust., Nedlands, WA 6009, Australia

Cornford, C. A. and R. D. Hill (1994). Alpha-Amylase isoenzymes and BASI-like proteins in seeds of different grass species. Seed Science Research 4(3): 285-291. {a} Dep. Plant Sci., Univ. Manitoba, Winnipeg, MB R3T 2N2, Canada

Cosgrove, G. P., J. C. Burns, et al. (1994). Near infrared reflectance spectroscopy prediction of quality from masticated temperate forage species. Crop Science 34(3): 789-792. {a} USDA-ARS Dep. Crop Sci., N.C. State Univ., Raleigh, NC 27695, USA

Cransberg, L. and D. J. McFarlane (1994). Can perennial pastures provide the basis for a sustainable farming system in southern Australia? New Zealand Journal of Agricultural Research 37(3): 287-294. Western Australian Dep. Agric., Albany, WA 6330, Australia

Crutchfield, B. A. and D. A. Potter (1994). Preferences of Japanese beetle and southern masked chafer (Coleoptera: Scarabaeidae) grubs among cool-season turfgrasses. Journal of Entomological Science 29(3): 398-406. Dep. Entomol., S-225 Agriculture Sci. Build. North, Univ. Kentucky, Lexington, KY 40546-0091, USA

Cunningham, P. J., M. J. Blumenthal, et al. (1994). Perennial ryegrass improvement in Australia. New Zealand Journal of Agricultural Research 37(3): 295-310. {a} Dep. Agric., Patoral Vet. Inst., Hamilton, VIC 3300, Australia

Deaker, J. M., M. J. Young, et al. (1994). Carcass, liver and kidney characteristics of lambs grazing plantain (Plantago lanceolata), chicory (Cichorium intybus), white clover (Trifolium repens) or perennial ryegrass (Lolium perenne). Proceedings of the New Zealand Society of Animal Production 54: 197-200. {a} AgRes., Canterbury Agric. Sci. Cent., Lincoln, Canterbury, New Zealand

Debaene, G. S. B., P. S. Allen, et al. (1994). Morphology of the perennial ryegrass (Lolium perenne: Poaceae) coleorhiza and emerging radicle with continuous or discontinuous hydration. American Journal of Botany 81(6): 739-744. {a} Dep. Agronomy Hortic., 275 WIDB, Brigham Young Univ., Provo, UT 84602, USA

Debaene, G. S. B., P. S. Allen, et al. (1994). Dehydration of germinating perennial ryegrass seeds can alter rate of subsequent radicle emergence. Journal of Experimental Botany 45(278): 1301-1307. {a} Dep. Agron. Horticulture, Brigham Young Univ., Provo, UT 84602, USA

Demirel, H., I. Ozer, et al. (1994). Uptake of cesium-137 by crops from contaminated soils. Journal of Environmental Quality 23(6): 1280-1282. {a} Ankara Nucl. Res. Training Cent., 06105 Saray, Ankara, Turkey

Devey, F., C. H. Fearon, et al. (1994). Self-incompatibility in ryegrass: XI. Number and frequency of alleles in a cultivar of Lolium perenne L. Heredity 73(3): 262-264. {a} Wolfson Lab. Plant Mol. Biol., Sch. Biol. Sci., Univ. Birmingham, Birmingham B15 2TT, UK

Di, H. J., R. Harrison, et al. (1994). Assessment of methods for studying the dissolution of phosphate fertilizers of differing solubility in soil: III. The relationship between rate of dissolution and plant response. Fertilizer Research 38(1): 19-27. {a} Dep. Soil Sci. Plant Nutr., Univ. West. Aust., Nedlands, Perth, WA 6009, Australia

Di, H. J., R. Harrison, et al. (1994). Assessment of methods for studying the dissolution of phosphate fertilizers of differing solubility in soil. I. An isotopic method. Fertilizer Research 38(1): 1-9. {a} Dep. Soil Sci. Plant Nutr., Univ. West. Aust., Nedlands, Perth, WA 6009, Australia

Dimascio, J. A., P. M. Sweeney, et al. (1994). Analysis of heat shock response in perennial ryegrass using maize heat shock protein clones. Crop Science 34(3): 798-804. {a} Dep. Agron., Ohio State Univ., Columbus, OH 43210, USA

Dodd, M. E., J. Silvertown, et al. (1994). Application of the British National Vegetation Classification to the communities of the park grass experiment through time. Folia Geobotanica et Phytotaxonomica 29(3): 321-334. {a} Biol. Dep., Open Univ., Walton Hall, Milton Keynes MK7 6AA, UK

Douglas, J. T. and C. E. Crawford (1994). An evaluation of the drop-disc technique for measurements of herbage production in ryegrass for silage. Grass and Forage Science 49(2): 252-255. {a} Scottish Centre Agric. Eng., SAC, Bush Estate, Penicuik, Midlothian EH26 0PH, UK

Dunn, J. H., D. D. Minner, et al. (1994). Bermudagrass and cool-season turfgrass mixtures: Response to simulated traffic. Agronomy Journal 86(1): 10-16. {a} Dep. Horticulture, University Missouri, Columbia, MO 65211, USA

Ede, R. M., C. O. Miles, et al. (1994). Relative stereochemistry of the A/B rings of the tremorgenic mycotoxin lolitrem B. Journal of Agricultural and Food Chemistry 42(2): 231-233. {a} Dep. Chem., Univ. Waikato, Private Bag 3105, Hamilton, New Zealand

Edge, C. P., S. A. Bell, et al. (1994). Contrasting growth responses of herbaceous species to acidic fogs. Agriculture Ecosystems and Environment 51(3): 293-299. {a} Inst. Terestrial Ecol., Bangor Res. Unit, Univ. Coll. North Wales, Deiniol Road, Bangor LL57 2UP, UK

Elgersma, A., G. D. Winkelhorst, et al. (1994). The relationship between progeny seed yield in drilled plots and maternal spaced-plant traits in perennial ryegrass (Lolium perenne L.). Plant Breeding 112(3): 209-214. {a} Dep. Agronomy, Agric. Univ., Haarweg 333, NL-6709 RZ Wageningen, Netherlands

Fearon, C. H., M. A. Cornish, et al. (1994). Self-incompatibility in ryegrass: X. Number and frequency of alleles in a natural population of Lolium perenne L. Heredity 73(3): 254-261. {a} Wolfson Lab. Plant Mol. Biol., Sch. Biol. Sci., Univ. Birmingham, Birmingham B15 2TT, UK

Fraser, T. W., R. O. Mackender, et al. (1994). Ultrastructural evidence of damage to leaf stromal protein four hours after treatment with paraquat. Journal of Experimental Botany 45(277): 1183-1186. {a} Plant Pathol. Res. Div., Dep. Agric. Northern Ireland, Newforge Lane, Belfast BT9 5PX, UK

Freudenberger, D. O., C. J. Burns, et al. (1994). Digestion and rumen metabolism of red clover and perennial ryegrass/white clover forages by red deer. Journal of Agricultural Science 122(1): 115-120. {a} Dep. Anim. Sci., Massey Univ., Palmerston North, New Zealand

Fritz, E., D. Knoche, et al. (1994). A new approach for rhizosphere research by X-ray microanalysis of microliter soil solutions. Plant and Soil 161(2): 219-223. {a} Inst. Forstbotanik, Univ. Goettingen, Buesgenweg 2, 37077 Goettingen, Germany

Frossard, E., P. Tekeley, et al. (1994). Chemical characterization and agronomic effectiveness of phosphorus applied as a polyphosphate-chitosan complex. Fertilizer Research 37(2): 151-158. {a} ENSAIA-INRA, BP 172, 54505 Vandoeuvre les Nancy Cedex, France

Fulkerson, W. J. (1994). Effect of redefoliation on the regrowth and water soluble carbohydrate content of Lolium perenne. Australian Journal of Agricultural Research 45(8): 1809-1815. Wollongbar Agric. Inst., Wollongbar, NSW 2477, Australia

Fulkerson, W. J. and K. Slack (1994). Leaf number as a criterion for determining defoliation time for Lolium perenne. 1. Effect of water-soluble carbohydrates and senescence. Grass and Forage Science 49(4): 373-377. {a} NSW Agric., Wollongbar Agric. Inst., Wollongbar, NSW 2480, Australia

Fulkerson, W. J. and K. Slack (1994). Management of Lolium perenne/Trifolium repens pastures in the subtropics: II. Effect of summer defoliation, irrigation duration, seedbed preparation and pasture type. Australian Journal of Agricultural Research 45(3): 721-728. NSW Agric. Wollongbar Agric. Inst., Wollongbar, NSW 2477, Australia

Fulkerson, W. J., K. Slack, et al. (1994). Variation in the response of Lolium genotypes to defoliation. Australian Journal of Agricultural Research 45(6): 1309-1317. {a} NSW Agric., Wollongbar Agric. Inst., Wollongbar, N.S.W. 2480, Australia

Gao, Y. and D. Wilman (1994). Leaf development in eight related grasses. Journal of Agricultural Science 123(1): 41-46. {a} Dep. Agric. Sci., Univ. Wales, Aberystwyth, Dyfed SY23 3DD, UK

Garnier, E. and G. Laurent (1994). Leaf anatomy, specific mass and water content in congeneric annual and perennial grass species. New Phytologist 128(4): 725-736. Cent. d'Ecol. Fonctinnelle et Evol., CNRS, BP 5051, 34033 Montpellier Cedex 1, France

Garnier, E. and S. Vancaeyzeele (1994). Carbon and nitrogen content of congeneric annual and perennial grass species: Relationships with growth. Plant Cell and Environment 17(4): 399-407. {a} Centre Ecol. Fonctionelle et Evolutive, Route de Mende, B.P. 5051, 34033 Montpellier-Cedex 1, France

Georgiew, N. (1994). N, P and K content in the phytomass of two herb associations with a dominance of Lolium perenne. Archivos de Zootecnia 43(162): 175-180. Inst. Bot., Bulgarian Acad. Sci., Sofia 1113, Bulgaria

Ghesquiere, M., L. Hazard, et al. (1994). Breeding for management adaptation in perennial ryegrass (Lolium perenne L.): II. Genetic variability and heritability of leaf morphogenesis components. Agronomie Paris 14(4): 267-272. {a} INRA, Stn. Amelioration Plantes Fourrageres, F 86600 Lusignan, France

Griffiths, P. D., H. J. Ougham, et al. (1994). Genotypic and environmental effects on endopolyploidy in the epidermal tissues of Lolium perenne L. and Lolium multiflorum Lam. New Phytologist 128(2): 339-345. {a} Inst. Biol. Sci., Univ. Wales Aberystwyth, Sir George Stapledon Build., Penglais, Aberystwyth, Dyfed SY23 3DD, UK

Hameed, R., J. Cortez, et al. (1994). Biostimulation of Lolium perenne L. growth with nitrogen excreted by Lumbricus terrestris L.: Laboratory measurements of the nitrogen flow. Soil Biology and Biochemistry 26(4): 483-493. {a} Centre d'Ecologie Fonctionnelle Evolutive, CEPE Louis Emberger, route de Mende, B.P. 5051, 34033 Montpellier Cedex, France

Haris, A. (1994). Food-choice of wheat-sawflies (Dolerus spp., Hymenoptera, Tenthredinidae). Acta Phytopathologica et Entomologica Hungarica 29(3-4): 335-342. Goncol Found., P.O. Box 184, Vac, Hungary

Haris, A. (1994). Preliminary examinations on food-choice of Pachynematus clitellatus LEPELETIER (Hymenoptera, Tenthredinidae). Acta Phytopathologica et Entomologica Hungarica 29(3-4): 329-334. Goncol Found., P.O. Box 184, Vac, Hungary

Hatch, D. J. and P. J. Murray (1994). Transfer of nitrogen from damaged roots of white clover (Trifolium repens L.) to closely associated roots of intact perennial ryegrass (Lolium perenne L). Plant and Soil 166(2): 181-185. Inst. Grassland Environ. Res., North Wyke Res. Stn., Okehampton, Devon EX20 2SB, UK

Hazard, L., M. Ghesquiere, et al. (1994). Breeding for management adaptation in perennial ryegrass (Lolium perenne L.): I. Assessment of yield under contrasting cutting frequencies and relationships with leaf morphogenesis components. Agronomie Paris 14(4): 259-266. {a} INRA, Stn. Amelioration Plantes Fourrageres, F 86600 Lusignan, France

Hogh, J. H. and J. K. Schjoerring (1994). Measurement of biological dinitrogen fixation in grassland: Comparison of the enriched 15N dilution and the natural 15N abundance methods at different nitrogen application rates and defoliation frequencies. Plant and Soil 166(2): 153-163. Plant Nutr. Lab., Dep. Agric Sci., Royal Vet. Agric. Univ., Thorvaldsensvej 40, DK-1871 Copenhagen, Denmark

Hojito, M. (1994). Studies on grassland acidification caused by fertilizer application and its effects on grass growth. Report of Hokkaido Prefectural Agricultural Experiment Stations(83): 1-108. Hokkaido Konsen Agricultural, Experiment Station, Nakashibetu, Hokkaido 086-11, Japan

Hooda, P. S. and B. J. Alloway (1994). The plant availability and DTPA extractability of trace metals in sludge-amended soils. Science of the Total Environment 149(1-2): 39-51. {a} Dep. Soil Sci., Univ. Reading, London Rd., Reading RG1 5AQ, UK

Hopkins, A., A. H. Adamson, et al. (1994). Response of permanent and reseeded grassland to fertilizer nitrogen: 2. Effects on concentrations of Ca, Mg, K, Na, S, P, Mn, Zn, Cu, Co and Mo in herbage at a range of sites. Grass and Forage Science 49(1): 9-20. {a} AFRC Inst. Grassland Environmental Res., North Wyke Research Station, Okehampton, Devon EX20 2SB, UK

Hopkins, A. and R. R. Davies (1994). Changing grassland utilization in the United Kingdom and its implications for pollen production and hay fever. Grana 33(2): 71-75. {a} Inst. Grassland and Environ. Res., North Wyke, Okehampton, Devon EX20 2SB, UK

Iannotti, D. A., M. E. Grebus, et al. (1994). Oxygen respirometry to assess stability and maturity of composted municipal solid waste. Journal of Environmental Quality 23(6): 1177-1183. {a} Dep. Plant Pathol., Ohio State Univ./Ohio Agric. Dev. Res. Cent., Wooster, OH 44691, USA

Inoue, T., I. M. Brookes, et al. (1994). Effects of leaf shear breaking load on the feeding value of perennial ryegrass (Lolium perenne) for sheep: I. Effects on leaf anatomy and morphology. Journal of Agricultural Science 123(1): 129-136. {a} Dep. Anim. Sci., Massey Univ., Palmerston North, New Zealand

Inoue, T., I. M. Brookes, et al. (1994). Effects of leaf shear breaking load on the feeding value of perennial ryegrass (Lolium perenne) for sheep: II. Effects on feed intake, particle breakdown, rumen digesta outflow and animal performance. Journal of Agricultural Science 123(1): 137-147. {a} Dep. Anim. Sci., Massey Univ., Palmerston North, New Zealand

Jensen, E. S. (1994). Leaching in small lysimeters of nitrate derived from nitrogen-15-labeled field pea residues. Journal of Environmental Quality 23(5): 1045-1050. Sect. Plant Nutrition, Environ. Sci. Technol. Dep., Riso National Lab., DK-4000 Roskilde, Denmark

Jiang, Q. Q. and B. R. Singh (1994). Effects of different forms and sources of arsenic on crop yield and arsenic concentration. Water Air and Soil Pollution 74(3-4): 321-343. {a} Dep. Soil Water Sci., Agric. Univ. Norway, Box 5028, 1432 Aas, Norway

Johnson, B. J. (1994). Influence of diclofop and dithiopyr on spring transition of a Bermudagrass (Cynodon dactylon) green overseeded with perennial ryegrass (Lolium perenne). Weed Technology 8(2): 207-211. Univ. Georgia, Georgia Stn., Griffin, GA 30223-1797, USA

Johnson, B. J. (1994). Fenarimol tolerance of roughstalk bluegrass overseeded in bermudagrass greens. Agronomy Journal 86(3): 519-522. Univ. Georgia, Georgia Station, Dep. Crop and Soil Sci., Griffin, GA 30223-1797, USA

Johnson, B. J. (1994). Biological control of annual bluegrass with Xanthomonas campestris pv. poannua in bermudagrass. Hortscience 29(6): 659-662. Dep. Crop and Soil Sci., Univ. Ga., Georgia Station, Griffin, GA 30223-1797, USA

Jones, E. L. and J. E. Roberts (1994). Herbage quality and production of perennial ryegrass cultivars in monoculture and mixtures. Irish Journal of Agricultural and Food Research 33(2): 169-176. Inst. Grassland Environmental Res., Plas Gogerddam, Aberystwyth, Dyfed SY23 3EB, UK

Kanno, T., M. Fukuyama, et al. (1994). Canopy structure and underground organs of some temperate grasses undergoing frequent defoliation. Sochi Shikenjo Kenkyu Hokoku(49): 1-16. {a} Dep. Grassland Planning, Natl. Grassland Res. Inst., Nishinasuno, Tochigi 329-27, Japan

Kiang, A. S., V. Connolly, et al. (1994). Paternal inheritance of mitochondria and chloroplasts in Festuca pratensis-Lolium perenne intergenic hybrids. Theoretical and Applied Genetics 87(6): 681-688. {a} Dep. Genetics, Trinity College Dublin, Dublin 2, Ireland

Kim, T. H., K. W. Kim, et al. (1994). Daily dynamics of herbage intake and milk yield by dairy cows under continuous paddock grazing. Korean Journal of Animal Sciences 36(5): 541-548. {a} Inst. Dev. Livestock Prod., Coll. Agric., Gyeongsang Natl. Univ., 660-701 Chinju, South Korea

Kim, T. H., K. W. Kim, et al. (1994). Changes in sward structure and daily dynamics of defoliation by dairy cows under continuous paddock grazing. Korean Journal of Animal Sciences 36(5): 533-540. {a} Inst. Dev. Livestock Prod., Coll. Agric., Gyeongsang Natl. Univ., 660-701 Chinju, South Korea

Kobayashi, R. and H. Kawamoto (1994). Lignin constituents and their relation with forage quality. Sochi Shikenjo Kenkyu Hokoku(49): 51-59. Dep. Feed Production and Utilization, Natl. Grassland Res. Inst., Nishinasuno, Tochigi 329-27, Japan

Kraus, E., C. Kolloffel, et al. (1994). The effect of handling on photosynthesis, transpiration, respiration, and nitrogen and carbohydrate content of populations of Lolium perenne. Physiologia Plantarum 91(4): 631-638. {a} Dep. Plant Ecol. Evol. Biol., Utrecht Univ., Sorbonnelaan 16, NL-3584 CA Utrecht, Netherlands

Laca, E. A., R. A. Distel, et al. (1994). Effects of canopy structure on patch depression by grazers. Ecology Tempe 75(3): 706-716. {a} Dep. Range Wildlife Management, Texas Tech Univ., Lubbock, TX 79409-2125, USA

Laffer, S., R. Valenta, et al. (1994). Complementary DNA cloning of the major allergen PhI p I from timothy grass (Phleum pratense); recombinant PhI p I inhibits IgE binding to group I allergens from eight different grass species. Journal of Allergy and Clinical Immunology 94(4): 689-698. {a} Inst. General Experimental Pathology, AKH, Waehringergeutel 18-20, A-1090 Vienna, Austria

Larsen, A. (1994). Breeding winter hardy grasses. Euphytica 77(3): 231-237. Norw. State Agric. Res. Stn., Vagones Res. Stn., N-8010 Bodo, Norway

Latch, G. C. (1994). Influence of Acremonium endophytes on perennial grass improvement. New Zealand Journal of Agricultural Research 37(3): 311-318. AgRes. Grasslands, Private Bag 11008, Palmerston North, New Zealand

Lefroy, R. D. B., M. Dana, et al. (1994). A glasshouse evaluation of sulfur fertilizer sources for crops and pastures. III. Soluble and non-soluble sulfur and phosphorus sources for pastures. Australian Journal of Agricultural Research 45(7): 1525-1537. {a} Dep. Agron. Soil Sci., Univ. New England, Armidale, NSW 2351, Australia

Leuchtmann, A., C. L. Schardl, et al. (1994). Sexual compatibility and taxonomy of a new species of Epichloe symbiotic with fine fescue grasses. Mycologia 86(6): 802-812. {a} Geobot. Inst. ETH, Zollikerstr. 107, CH-8008 Zurich, Switzerland

Liu, D. L. Y. and N. E. Christians (1994). Isolation and identification of root-inhibiting compounds from corn gluten hydrolysate. Journal of Plant Growth Regulation 13(4): 227-230. {a} Dep. Horticulture, Iowa State Univ., Ames, IA 50011, USA

Loganathan, P., M. J. Hedley, et al. (1994). The agronomic value of co-granulated Christmas Island Grade C phosphate rock and elemental sulphur. Fertilizer Research 39(3): 229-237. Fertilizer Lime Research Centre, Massey Univ., Palmerston North, New Zealand

Loos, B. P. (1994). Allozyme differentiation of European populations and cultivars of Lolium perenne L., and the relation to ecogeographical factors. Euphytica 80(1-2): 49-57. Centre Plant Breeding and Reprod. Res., P.O. Box 16, 6700 AA Wageningen, Netherlands

MacLeod, A., S. D. Wratten, et al. (1994). The efficiency of a new lightweight suction sampler for sampling aphids and their predators in arable land. Annals of Applied Biology 124(1): 11-17. {a} Dep. Biol., Sch. Biol. Sci., Biomed. Sci. Build., University, Bassett Crescent East, Southampton SO9 3TU, UK

Masterman, A. J., S. J. Holmes, et al. (1994). Transmission of barley yellow dwarf virus by cereal aphids collected from different habitats on cereal farms. Plant Pathology Oxford 43(4): 612-620. {a} Dep. Plant Sci., Scottish Agric. Coll., Auchincruive, Ayr KA6 5HW, UK

Masuko, T., I. Kodama, et al. (1994). Changes on mono and disaccharide contents of temperate grass cut at three stages of growth in Hokkaido. Nippon Sochi Gakkai Shi 40(2): 230-233. {a} Fac. Bioind., Tokyo Univ. Agric., 196 Yasaka, Abashiri-shi 099-24, Japan

Masuko, T., A. Ono, et al. (1994). Changes in crude protein, ADF and water soluble carbohydrate (WSC) contents of temperate grass cut at three stages of growth in Hokkaido. Nippon Sochi Gakkai Shi 40(2): 227-229. {a} Fac. Bioind., Tokyo Univ. Agric., 196 Yasaka, Abashiri-shi 099-24, Japan

Matthew, C., C. R. O. Lawoko, et al. (1994). Application of canonical discriminant analysis, principal component analysis, and canonical correlation analysis as tools for evaluating differences in pasture botanical composition. New Zealand Journal of Agricultural Research 37(4): 509-520. {a} Dep. Plant Sci., Massey University, Private Bag 11-222, Palmerston North, New Zealand

McNeill, A. M., R. C. Hood, et al. (1994). Direct measurement of nitrogen fixation by Trifolium repens L. and Alnus glutinosa L. using 15N-2. Journal of Experimental Botany 45(275): 749-755. Dep. Soil Sci., Univ. Reading, London Raod, Reading RG1 5AQ, UK

Mohapatra, S. S., S. Mohaptar, et al. (1994). Molecular basis of cross-reactivity among allergen-specific human T cells: T-cell receptor V-alpha gene usage and epitope structure. Immunology 81(1): 15-20. {a} Dep. Immunology, Univ. Manitoba, 730 William Avenue, Winnipeg, MB R3E 0W3, Canada

Morita, O., M. Goto, et al. (1994). The germination and establishment of the surface-sown grass seeds: 6. Uprooting strength of seminal root of grass species at the early seedling stage. Nippon Sochi Gakkai Shi 40(2): 198-204. Fac. Bioresour., Mie Univ., Tsu, Mie 514, Japan

Muck, R. E. and K. P. O (1994). Lysozyme as a potential silage additive. Irish Journal of Agricultural and Food Research 33(2): 157-167. {a} USDA, Agric. Res. Service, US Dairy Forage Res. Cent., 1925 Linden Drive West, Madison, WI 53706-1108, USA

Mueller, W. D., T. Karamfilov, et al. (1994). Analysis of human T cell clones reactive with group V grass pollen allergens. International Archives of Allergy and Immunology 105(4): 391-396. {a} Abteilung fuer Klinische Immunologie, Friedrich-Schiller-Universitaet, Humboldtstrasse 3, D-07743 Jena, Germany

Mueller, W. G. W., W. C. I. Youngi, et al. (1994). Influence of residue removal method and herbicides on perennial ryegrass seed production: II. Crop tolerance. Agronomy Journal 86(4): 684-690. {a} USDA-ARS, Natl. Forage Seed Prod. Res. Cent., 3450 SW Campus Way, Corvallis, OR 97331-7102, USA

Mueller, W. G. W., W. C. I. Youngi, et al. (1994). Influence of residue removal method and herbicides on perennial ryegrass seed production: I. Weed control. Agronomy Journal 86(4): 677-684. {a} USDA-ARS, Natl. Forage Seed Prod. Res. Cent., 3450 SW Campus Way, Corvallis, OR 97331-7102, USA

Murphy, J. A. and D. E. Zaurov (1994). Shoot and root growth response of perennial ryegrass to fertilizer placement depth. Agronomy Journal 86(5): 828-832. {a} Dep. Plant Sci., New Jersey Agric. Exp. Stn., New Brunswick, NJ 08903, USA

Murray, P. J. and D. J. Hatch (1994). Sitona weevils (Coleoptera: Curculionidae) as agents for rapid transfer of nitrogen from white clover (Trifolium repens L.) to perennial ryegrass (Lolium perenne L.). Annals of Applied Biology 125(1): 29-33. Inst. Grassland and Environ. Res., North Wyke Res. Station, Okehampton, Devon EX20 2SB, UK

Newman, J. A., A. J. Parsons, et al. (1994). A note on the behavioural strategies used by grazing animals to alter their intake rates. Grass and Forage Science 49(4): 502-505. {a} Dep. Zool., Southern Illinois Univ., Carbondale, IL 62901-6501, USA

Newman, J. A., P. D. Penning, et al. (1994). Fasting affects intake behaviour and diet preference of grazing sheep. Animal Behaviour 47(1): 185-193. {a} AFRC, Unit Ecology Behaviour, Dep. Zool., Univ. Oxford, South Parks Road, Oxford OX1 3PS, UK

Nguyen, M. L. and K. M. Goh (1994). Distribution, transformations and recovery of urinary sulphur and sources of plant-available soil sulphur in irrigated pasture soil-plant systems treated with 35sulphur-labelled urine. Journal of Agricultural Science 122(1): 91-105. Dep. Soil Sci., Lincoln Univ., Canterbury, New Zealand

Opitz, V. B. W. J. J. (1994). Effects of rotational fallows ('set-aside land') on subsequent winter wheat. Journal of Agronomy and Crop Science 173(2): 125-134. Ludwigstrasse 23, D-35390 Giessen, Germany

Opsahl, F. H. G., A. Bjornstad, et al. (1994). Genetic control of androgenetic response in Lolium perenne L. Theoretical and Applied Genetics 89(1): 133-138. {a} RCAP, ENS, 46 Allee d'Italie, F-69364 Lyon Cedex 07, France

Opsahl, F. H. G., A. Bjornstad, et al. (1994). Influence of medium and cold pretreatment on androgenetic response in Lolium perenne L. Plant Cell Reports 13(10): 594-600. {a} Agric. Univ. Norway, Dep. Biotechnol. Sci., PO Box 5040, N-1432 As, Norway

Pain, B. F., T. H. Misselbrook, et al. (1994). Effects of nitrification inhibitor and acid addition to cattle slurry on nitrogen losses and herbage yields. Grass and Forage Science 49(2): 209-215. {a} Inst. Grassland Environ. Res., North Wyke Res. Stn., Okehampton, Devon EX20 2SB, UK

Penning, P. D., A. J. Parsons, et al. (1994). Intake and behaviour responses by sheep to changes in sward characteristics under rotational grazing. Grass and Forage Science 49(4): 476-486. {a} AFRC Inst. Grassland Environmental Res., North Wyke, Okehampton, Devon EX20 2SB, UK

Posselt, U. K. and F. Altpeter (1994). Improvement of snow mould resistance by conventional and in vitro techniques. Euphytica 77(3): 251-255. Landessaatzuchtanstalt, Univ. Hohenheim, D-70593 Stuttgart, Germany

Radojevic, I., R. J. Simpson, et al. (1994). Chemical composition and in vitro digestibility of lines of Lolium perenne selected for high concentrations of water-soluble carbohydrate. Australian Journal of Agricultural Research 45(4): 901-912. {a} CSIRO Div. Plant Industry, GPO Box 1600, Canberra, ACT 2601, Australia

Reheul, D. and A. Ghesquiere (1994). Breeding ryegrasses with an improved Puccinia coronata resistance. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 59(3a): 971-976. Rijksstation Plantenveredeling, Burg. Van Gansberghelaan 109, 9820 Merelbeke, Belgium

Reid, R. (1994). The role of introduced grasses other the Lolium perenne, Dactylis glomerata, Phalaris aquatica, and Festuca arundinacea in the pastoral systems of temperate Australia. New Zealand Journal of Agricultural Research 37(3): 399-404. Dep. Primary Industry Fisheries, P.O. Box 46, Kings Meadows, Tasmania 7249, Australia

Reid, R., E. Bettencourt, et al. (1994). Genetic resources for temperate perennial grass improvement programmes in Australia. New Zealand Journal of Agricultural Research 37(3): 439-444. {a} Dep. Primary Industries Fisheries, P.O. Box 46, Kings Meadows, Tasmania 7249, Australia

Rod, J. and J. Robak (1994). The effect of some crops on inactivation of clubroot (Plasmodiophora brassicae Wor.) in soils. Ochrana Rostlin 30(4): 267-272. {a} Central Checking Supervising Inst. Agriculture, 783 71 Olomouc, Czech Republic

Rodriguez, M., F. A. Lope, et al. (1994). Basic Linz-Donawitz slag as a liming agent for pastureland. Agronomy Journal 86(5): 904-909. {a} Servicio de Investigacion y Mejora Agraria, Gobierno Vasco, 48016 Derio, Bizkaia, Spain

Ruiz, R. G. G., J. F. Price, et al. (1994). Specificity of ELISA for IgG subclass antibodies against inhalant antigens in early childhood. Allergy Copenhagen 49(9): 719-723. {a} Dep. Allergy Allied Respiratory Disorders, UMDS, Guy's Campus, St. Thomas St., London SE1 9RT, UK

Sasaki, T. and K. Yamao (1994). Effects of 2, 4-D Concentrations on Callus Formation and Plant Regeneration Derived from mature Seeds in Festuca spp. and Lolium spp. Nippon Sochi Gakkai Shi 40(3): 257-263. Forage Crop Breeding Seed Res. Inst. Inc., Higashiakada, Nishinasuno, Tochigi 329-27, Japan

Sato, K., K. Inoue, et al. (1994). Development of ecological renovation method in areas of grassland cultivated with a reduced-rotary machine (stripe tillage): II. The establishment of four species under the cutting utilization system. Sochi Shikenjo Kenkyu Hokoku(50): 17-24. {a} Shikoku Natl. Agric. Experimental Station, Zentsuji, Kagawa 765, Japan

Sawada, H. and H. Oguchi (1994). Clone structure of a 4 years old pasture population of perennial ryegrass (Lolium perenne L.). Nippon Sochi Gakkai Shi 40(2): 205-213. Fac. Agric., Shizuoka Univ., Ooya-836, Shizuoka 422, Japan

Schnabel, R. R. and W. L. Stout (1994). Denitrification loss from two Pennsylvania floodplain soils. Journal of Environmental Quality 23(2): 344-348. {a} USDA-ARS Pasture Systems Watershed Management Res., 117 Research Office Build., University Park, PA 16802, USA

Schulz, M., A. Friebe, et al. (1994). Allelopathic Effects of Living Quackgrass (Agropyron repens L.): Identification of Inhibitory Allelochemicals Exuded from Rhizome Borne Roots. Angewandte Botanik 68(5-6): 195-200. Inst. Landwirtschaftliche Bot., Meckenheimer Allee 176, 53115 Bonn, Germany

Schwarz, J., M. Kapp, et al. (1994). Evaluation of denitrification losses by the acetylene inhibition technique in a permanent ryegrass field (Lolium perenne L.) fertilized with animal slurry or ammonium nitrate. Biology and Fertility of Soils 18(4): 327-333. Inst. Mikrobiologie, Justus-Liebig-Univ. Giessen, Senckenbergstr. 33, D-35390 Giessen, Germany

Seresinhe, T., U. A. Hartwig, et al. (1994). Symbiotic nitrogen fixation of white clover in a mixed sward is not limited by height of repeated cutting. Journal of Agronomy and Crop Science 172(4): 279-288. {a} Fac. Agric., Univ. Ruhma, Kamburupitiya, Sri Lanka

Silvertown, J., C. E. M. Lines, et al. (1994). Spatial competition between grasses-rates of mutual invasion between four species and the interaction with grazing. Journal of Ecology 82(1): 31-38. {a} Dep. Biol. The Open Univ., Walton Hall, Milton Keynes MK7 6AA, UK

Slusarkiewicz, J. A., A. Ponitka, et al. (1994). In vitro culture of ovules and embryos in intergeneric hybridization within the Lolium-Festuca complex. Genetica Polonica 35(3): 135-142. Inst. Plant Genetics, Polish Academy Sciences, Poland

Smith, K. F., C. K. Lee, et al. (1994). Yield, nutritive value, and phenotypic variability of tall wheatgrass grown in a nonsaline environment. Australian Journal of Experimental Agriculture 34(5): 609-614. {a} Dep. Agric., Pastoral Vet. Inst., Private Bag 105, Hamilton, VIC 3300, Australia

Soetrisno, E., T. N. Barry, et al. (1994). Effects of grazing red clover (Trifolium pratense) or perennial ryegrass (Lolium perenne)/white clover (Trifolium repens) pastures upon growth and venison production from weaner red deer (Cervus elaphus). New Zealand Journal of Agricultural Research 37(1): 19-27. {a} Dep. Anim. Sci., Massey Univ., Palmerston North, New Zealand

Solberg, E. T., O. A. Rognli, et al. (1994). Potential for improving adaptation of Lolium perenne L. to continental climates in Norway. Euphytica 77(3): 183-191. {a} State Agric. Res. Stn. Loken, N-2940 Heggenes, Norway

Sorensen, P., E. S. Jensen, et al. (1994). The fate of 15N-labelled organic nitrogen in sheep manure applied to soils of different texture under field conditions. Plant and Soil 162(1): 39-47. {a} Plant Biol. Sect., Environ. Sci. Technol. Dep., Riso Natl. Lab., DK-4000 Roskilde, Denmark

Spiegelberg, H. L., L. Beck, et al. (1994). Recognition of T cell epitopes and lymphokine secretion by rye grass allergen Lolium perenne I-specific human T cell clones. Journal of Immunology 152(9): 4706-4711. {a} Div. Pediatr. Immunol. Allergy-0609D, Dep. Pediatr., UCSD Sch. Med., 9500 Gilman Dr., La Jolla, CA 92093-0609, USA

Standell, C. and R. O. Clements (1994). Influence of grass seed rate, herbicide (bentazone) molluscicide (methiocarb) and insecticide (triazophos) on white clover (Trifolium repens) establishment, herbage yield and sward botanical composition. Crop Protection 13(6): 429-432. {a} IGER, North Wyke Research Station, Okehampton, Devon EX20 SSB, UK

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Stockdale, C. R. (1994). Persian clover and maize silage: I. Silage as a supplement for lactating dairy cows offered herbage of different quality. Australian Journal of Agricultural Research 45(8): 1751-1765. Kyabram Dairy Cent., Inst. Sustainable Irrigated Agric., Dep. Agric., RMB 3010, Kyabram, VIC 3620, Australia

Stout, W. L. and R. R. Schnabel (1994). Soil drainage influence on biomass and nitrogen accumulation by ryegrass. Agronomy Journal 86(1): 111-116. {a} USDA-ARS, Pasture Systems and Watershed Management Research, University Park, PA 16802, USA

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Suedekum, K. H., F. Taube, et al. (1994). Slot-seeding of white clover into a permanent pasture: Impact on nutritive value estimated in vivo and in vitro. Wirtschaftseigene Futter 40(2-3): 129-141. {a} Inst. Tierernaehrung Stoffwechselphysiologie, Christian-Albrechts-Universitaet, D-24098 Kiel, Germany

Sweeney, P. M. and T. K. Danneberger (1994). Random amplified polymorphic DNA in perennial ryegrass: A comparison of bulk samples vs. individuals. Hortscience 29(6): 624-626. Dep. Agron., Ohio State Univ., Columbus, OH 43210, USA

Tase, K. and M. Kobayashi (1994). Variation of Agronomic Characteristics and Classification by Cluster Analysis of Genus Lolium in a Heavy Snowfall Area of Japan. Nippon Sochi Gakkai Shi 40(3): 247-256. {a} Hokuriku National Agricultural Experiment Station, Inada, Joetsu, Niigata 943-01, Japan

Tasneem, M., C. A. Cornford, et al. (1994). Characterization of serine proteinase inhibitors in dry seeds of cultivated pasture grass species. Seed Science Research 4(3): 335-345. {a} Plant Molecular Genetics Lab., Grasslands Res. Centre, AgRes., Private Bag 11008, Palmerston North, New Zealand

Taylor, P. E., I. A. Staff, et al. (1994). Localization of the two major allergens in rye-grass pollen using specific monoclonal antibodies and quantitative analysis of immunogold labelling. Histochemical Journal 26(5): 392-401. {a} Sch. Bot., Univ. Melb., Parkville, VIC 3052, USA

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Turkington, R. (1994). Effect of propagule source on competitive ability of pasture grasses: Spatial dynamics of six grasses in stimulated swards. Canadian Journal of Botany 72(1): 111-121. Botany Dep., Univ. British Columbia, Vancouver, BC V6T 1Z4, Canada

Turkington, R., E. Klein, et al. (1994). Conditioning effects by neighbors on the growth and form of Trifolium repens. Canadian Journal of Botany 72(6): 783-787. {a} Botany Dep., Univ. Britisch Columbia, Vancouver, BC V4K 1Z4, Canada

Van, A. J. J. C. M. and H. Poorter (1994). The chemical composition and anatomical structure of leaves of grass species differing in relative growth rate. Plant Cell and Environment 17(8): 963-970. {a} Dep. Plant Ecol. and Evolutionary Biol., Utrecht Univ., P.O. Box 800.84, 3508 TB Utrecht, Netherlands

Van, D. M. H. M., J. E. R. De, et al. (1994). Stable transformation and long-term expression of the gusA reporter gene in callus lines of perennial ryegrass (Lolium perenne L.). Plant Molecular Biology 24(2): 401-405. {a} Dep. Cell Biol., DLO Centre Plant Breeding Reproduction Research, P.O. Box 16, 6700 AA Wageningen, Netherlands

Van, D. M. H. M., J. E. R. De, et al. (1994). Cytological characterization of isolated sperm cells of perennial ryegrass (Lolium perenne L.). Protoplasma 178(1-2): 48-56. {a} Dep. Cell Biol., DLO-Cent. Plant Breed. Reprod. Res., Postbus-16, NL-6700AA Wageningen, Netherlands

Van, R. R., L. W. A. Van, et al. (1994). IgE and IgG cross-reactivity among Lol p I and Lol p II/III: Identification of the C-terminal of Lol p I, II, and III as cross-reactive structures. Allergy Copenhagen 49(4): 254-261. {a} p/o Publication Secretariat, CLB, PO Box 9406, 1006 AK Amsterdam, Netherlands

Van, T. R. F. and K. G. Dodds (1994). Assessment of grass grub (Costelytra zealandica (White)) (Coleoptera: Scarabaeidae) damage in ryegrass-white clover pasture in Southland. New Zealand Journal of Agricultural Research 37(1): 99-105. AgRes. Invermay Agric. Cent., Private Bag 50034, Mosgiel, New Zealand

Verch, G. and W. Kuehbauch (1994). Changes in species composition and forage quality of wetlands by extensive management. Wirtschaftseigene Futter 40(2-3): 242-251. Lehrstuhl Allgemeinen Pflanzenbau Rheinischen, Friedrich-Wilhelms-Univ., Katzenburgweg 5, D-53115 Bonn, Germany

Von, B. W. O. and U. Schultheiss (1994). The influence of undersown green manure crops for fallows - set-aside land - in view of vegetation-development and the dynamic of nitrate. Journal of Agronomy and Crop Science 172(1): 52-61. {a} Ludwigstrasse 23, D-35390 Giessen, Germany

Voss, K., G. Harnischfeger, et al. (1994). Seed germination behaviour of Baptisia tinctoria (L.) R. Br. Angewandte Botanik 68(1-2): 53-59. {a} Inst. Angewandte Bot., Nutzpflanzenbiol., Marseiller Str. 7, D-20355 Hamburg, Germany

Waddington, D. V., A. E. Gover, et al. (1994). Nutrient concentrations of turfgrass and soil test levels as affected by soil media and fertilizer rate and placement. Communications in Soil Science and Plant Analysis 25(11-12): 1957-1990. Dep. Agron., Penn. State Univ., University Park, PA 16802, USA

Wang, H. M. and A. Sletten (1994). Effect of Plant Age and Humidity on Development of Bacterial Wilt of Forage Grasses. Acta Agriculturae Scandinavica Section B Soil and Plant Science 44(4): 226-229. {a} Dep. Plant Protection, Beijing Agric. Univ., Beijing 100094, China

Wang, Z. Y., G. Legris, et al. (1994). Cryopreservation of embryogenic cell suspensions in Festuca and Lolium species. Plant Science Limerick 103(1): 93-106. {a} Inst. Plant Sci., Swiss Fed. Inst. Technol., CH-8092 Zurich, Switzerland

Wardle, D. A., K. S. Nicholson, et al. (1994). Influence of herbicide applications on the decomposition, microbial biomass, and microbial activity of pasture shoot and root litter. New Zealand Journal of Agricultural Research 37(1): 29-39. AgRes., Ruakura Agric. Res. Cent., Private Bag 3123, Hamilton, New Zealand

Watson, C. J., P. Poland, et al. (1994). Agronomic assessment of 15N recovery of urea amended with the urease inhibitor nBTPT (N-(n-butyl) thiophosphoric triamide) for temperate grassland. Plant and Soil 161(2): 167-177. {a} Faculty Agriculture Food Science, Queen's Univ., Belfastk, UK

Weatherup, S. T. C. (1994). Use of Mahalanobis distance to measure varietal distinctness. Plant Varieties and Seeds 7(2): 107-119. Biometrics Div., Dep. Agric. North Ireland, Queen's Univ. Belfast, UK

Welty, R. E. and M. D. Azevedo (1994). Application of propiconazole in management of stem rust in perennial ryegrass grown for seed. Plant Disease 78(3): 236-240. Agric. Res. Serv., U.S. Dep. Agric., Natl. Forage Seed Prod. Res. Cent., 3450 S.W. Campus Way, Oreg. State Univ., Corvallis, OR 97331-7201, USA

Whitaker, E. (1994). The effect of salt on the growth of ryegrass. Journal of Biological Education 28(1): 13-18. Wye Coll., Univ. London, Wye, Ashford, Kent TN25 5AH, UK

Williams, P. H. and R. J. Haynes (1994). Comparison of initial wetting pattern, nutrient concentrations in soil solution and the fate of 15N-labelled urine in sheep and cattle urine patch areas of pasture soil. Plant and Soil 162(1): 49-59. N.Z. Inst. Crop Food Res., Canterbury Agric. Sci. Cent., Private Bag 4704, Christchurch, New Zealand

Wilman, D., P. G. H. Acuna, et al. (1994). Concentrations of N, P, K, Ca, Mg and Na in perennial ryegrass and white clover leaves of different ages. Grass and Forage Science 49(4): 422-428. {a} Dep. Agric. Sci., Univ. College Wales, Aberystwyth, Dyfed SY23 3DD, UK

Wilman, D. and R. W. Derrick (1994). Concentration and availability to sheep of N, P, K, Ca, Mg and Na in chickweed, dandelion, dock, ribwort and spurrey, compared with perennial ryegrass. Journal of Agricultural Science 122(2): 217-223. Dep. Agric. Sci., Univ. Coll. Wales, Aberystwyth, Dyfed SY23 3DD, UK

Wilman, D., Y. Gao, et al. (1994). Morphology and position of the shoot apex in some temperate grasses. Journal of Agricultural Science 122(3): 375-383. Dep. Agric. Sci., Univ. Wales, Aberystwyth, Dyfed SY23 3DD, UK

Xu, W. W. and D. A. Sleper (1994). Phylogeny of tall fescue and related species using RFLPs. Theoretical and Applied Genetics 88(6-7): 685-690. {a} Dep. Agron., Univ. Mo.-Columbia, Columbia, MO 65211, USA

Yarrow, N. H. and P. D. Penning (1994). Managing grass/clover swards to produce differing clover proportions. Grass and Forage Science 49(4): 496-501. {a} AFRC Inst. Grassland Environmental Res., North Wyke Res. Stn., Okehampton, Devon EX20 2SB, UK

Yeates, G. W., V. A. Orchard, et al. (1994). Impact of pasture contamination by copper, chromium, arsenic timber preservative on soil biological activity. Biology and Fertility of Soils 18(3): 200-208. {a} Landcare Research, Private Bag 11052, Palmerston North, New Zealand

Zagal, E. (1994). Carbon distribution and nitrogen partitioning in a soil-plant system with barley (Hordeum vulgare L.) ryegrass (Lolium perenne) and rape (Brassica napus L.) grown in a 14CO-2-atmosphere. Plant and Soil 166(1): 63-74. Dep. Soil Sci., Div. Plant Nutr. Soil Fert., Swed. Univ. Agric. Sci., P.O. Box 7014, S-750 07 Uppsala, Sweden

Acuna, G. H. and D. Wilman (1993). Effects of cutting height on the productivity and composition of perennial ryegrass-white clover swards. Journal of Agricultural Science 121(1): 29-37. {a} Dep. Agric. Sci., Univ. Coll. Wales, Aberystwyth, Dyfed SY23 3DD, UK

Acuna, P. G. H. and D. Wilman (1993). Some effects of added phosphorus on perennial ryegrass-white clover swards. Grass and Forage Science 48(4): 416-420. {a} Dep. Agricultural Sciences, University College Wales, Aberystwyth, Dyfed SY23 3DD, UK

Allen, P. S., D. B. White, et al. (1993). Germination of perennial ryegrass and annual bluegrass seeds subjected to hydration-dehydration cycles. Crop Science 33(5): 1020-1025. {a} Dep. Agron. and Hortic., Brigham Young Univ., Provo, UT 84602, USA

An, Z. Q., M. R. Siegel, et al. (1993). Relationship among non-Acremonium sp. fungal endophytes in five grass species. Applied and Environmental Microbiology 59(5): 1540-1548. {a} Dep. Plant Pathol., Univ. Kentucky, Lexington, KY 40546-0091, USA

Andersen, A. and C. C. Olsen (1993). Rye grass as a catch crop in spring barley. Acta Agriculturae Scandinavica Section B Soil and Plant Science 43(4): 218-230. Danish Inst. Plant and Soil Sci., Ronhave Exp. Stn., Hestehave 20, DK-6400 Sinderborg, Denmark

Archie, W. J., D. R. Stevens, et al. (1993). Introduction, production, and persistence of five grass species in dry hill country: 4. Carvossa, North Canterbury, South Island, New Zealand. New Zealand Journal of Agricultural Research 36(1): 25-28. {a} AgRes., Canterbury Agric. Sci. Cent., P. O. Box 60, Lincoln, N.Z

Arvy, M. P. (1993). Selenate and selenite uptake and translocation in bean plants (Phaseolus vulgaris). Journal of Experimental Botany 44(263): 1083-1087. 6, rue de Moncontour, 37300 Joue-les-Tours, France

Atkins, P. C., A. C. Von, et al. (1993). Fibrin formation during ongoing cutaneous allergic reactions: Comparison of responses to antigen and codeine. Journal of Allergy and Clinical Immunology 91(4): 956-960. {a} Hospital Univ. Pa., Module B, Third Floor Silverstein Pavilion, 3400 Spruce St., Philadelphia, PA 19104-4283

Atzema, A. J. (1993). The effect of the weather on the drying rate of cut diploid and tetraploid perennial ryegrass (Lolium perenne L.) and diploid hybrid ryegrass (Lolium perenne X L. multiflorum). Grass and Forage Science 48(4): 362-368. Dep. Meteorology, Wageningen Agricultural University, Duivendaal 2, NL 6701 AP Wageningen, Netherlands

Awonaike, K. O., S. K. A. Danso, et al. (1993). The use of a double isotope (15N and 34S) labelling technique to assess the suitability of various reference crops for estimating nitrogen fixation in Gliricidia sepium and Leucaena leucocephala. Plant and Soil 155-156: 325-328. {a} FAO/IAEA Prog., Soil Sci. Unit, IAEA Lab., A-2444 Seibersdorf, Austria

Barker, D. J. and N. Dymock (1993). Introduction, production, and persistence of five grass species in dry hill country: 6. Ballantrae, North Island, New Zealand. New Zealand Journal of Agricultural Research 36(1): 41-47. AgRes., Grasslands Res. Cent., Private Bag 11008, Palmerston North, N.Z

Barker, D. J., M. G. Lambert, et al. (1993). Introduction, production, and persistence of five grass species in dry hill country: 5. Central Wairarapa, North Island, New Zealand. New Zealand Journal of Agricultural Research 36(1): 29-39. AgRes., Grasslands Res. Cent., Private Bag 11008, Palmerston North, N.Z

Barker, D. J., J. A. Lancashire, et al. (1993). Introduction, production, and persistence of five grass species in dry hill country: 8. Summary and conclusions. New Zealand Journal of Agricultural Research 36(1): 61-66. {a} AgRes., Grasslands Res. Centre, Private Bag 11008, Palmerston North, N.Z

Barta, I. C. and F. Dutka (1993). N-acyl-N-alkyl-1-aminobenzotriazoles: Phytotoxicity, antagonism to EPTC and effects on maize cytochrome P-450. Weed Research 33(4): 329-334. Central Res. Inst. Chem., Hung. Acad. Sci., POB 17, H-1525 Budapest, Hungary

Beale, P. E., M. Bounejmate, et al. (1993). Distribution of annual Trifolium species in Morocco. Australian Journal of Agricultural Research 44(6): 1303-1310. {a} Int. Centre Agric. Res. Dry Areas (ICARDA), P.O. Box 5466, Aleppo, Syria

Bhaskaran, S. and R. H. Smith (1993). Carbohydrates, invertase activity, growth and dimorphism in Sporisorium reilianum. Mycopathologia 122(1): 35-41. {a} Soil and Crop Sciences Dep., Texas A and M Univ., Coll. Station, TX 77843-2474, USA

Bhattacharya, B. and P. R. Sur (1993). Genus Lolium Linn. in India. Journal of Economic and Taxonomic Botany 17(1): 37-41. {a} Dep. Botany, South Calcutta Girls Coll. 72, Sarat Bose Road, Calcutta-700025, India

Bischoff, H. M. and G. Adolf (1993). Effects of rate and form of nitrogen fertilization and irrigation on floristic development, forage quality and yield performance of a grass mixture (Lolium perenne L. and Poa pratensis L.) in the foreland of an Elbe river dike. Wirtschaftseigene Futter 38(3): 188-201. {a} Martin-Luther-Univ. Halle-Wittenberg, Landwirtschaftliche Fak., Inst. Acker- und Pflanzenbaum-Grunland, Ludwig-Wucherer-Str. 80, Halle/Saale O-4020

Boekhold, A. E., E. J. M. Temminghoff, et al. (1993). Influence of electrolyte composition and pH on cadmium sorption by an acid sandy soil. Journal of Soil Science 44(1): 85-96. {a} Natl. Inst. Public Health Environ. Prot., P.O. Box 1, 3720 BA Bilthoven, Netherlands Antilles

Booy, G., D. F. Van, et al. (1993). Identification of ryegrass varieties (Lolium spp.) using allele frequencies of the PGI-2 and ACP-1 isozyme systems. Plant Varieties and Seeds 6(3): 179-195. {a} CPRO-DLO, P.O. Box 16, 6700 AA Wageningen, Netherlands

Boutin, Y., M. Jobin, et al. (1993). Biological activity of monoclonal anti-idiotypic antibody representing the internal image of the major allergenic component of Lolium perenne pollen. International Archives of Allergy and Immunology 102(1): 10-14. {a} Cent. Rech. Inflammation Immunol.-Rhumatol., Cent Hospitalier de l'Univ. Laval, 2705 blvd. Laurier, Ste-Foy, PQ G1V 4G2, Canada

Breen, J. P. (1993). Enhanced resistance to three species of aphids (Homoptera: Aphididae) in Acremonium endophyte-infected turfgrasses. Journal of Economic Entomology 86(4): 1279-1286. FMC, P.O. Box 8, Princeton, NJ 08543, USA

Broadwater, A. H., A. L. Rubinstein, et al. (1993). Zea mI, the maize homolog of the allergen-encoding Lol pI gene of rye grass. Gene Amsterdam 131(2): 227-230. {a} Biol. Dep., 010A Coker Hall CB No. 3280, Univ. NC, Chapel Hill, NC 27599-3280, USA

Brock, J. L. and R. H. Fletcher (1993). Morphology of perennial ryegrass (Lolium perenne) plants in pastures under intensive sheep grazing. Journal of Agricultural Science 120(3): 301-310. Ag Research, Grasslands Research Centre, Palmerston North, New Zealand

Castonguay, Y., P. Nadeau, et al. (1993). Effects of flooding on carbohydrate and ABA levels in roots and shoots of alfalfa. Plant Cell and Environment 16(6): 695-702. {a} Station Recherches, Agriculture Can., 2560 boul. Hochelaga, Sainte-Foy G1V 2J3, Canada

Charmet, G., F. Balfourier, et al. (1993). Isozyme polymorphism and geographic differentiation in a collection of French perennial ryegrass populations. Genetic Resources and Crop Evolution 40(2): 77-89. INRA, Stn. Amelioration Plantes, 63039 Clermon Ferrand, France

Charmet, G., F. Balfourier, et al. (1993). Genotype X environment interactions in a core collection of French perennial ryegrass populations. Theoretical and Applied Genetics 86(6): 731-736. {a} INRA, Station d'Amelioration Plantes, 63039, Clermont Ferrand, France

Charmet, G., C. Ravel, et al. (1993). Change of expected response to multitrait selection in a synthetic population of perennial ryegrass through recurrent selection: I. Prediction of the Bulmer effect. Plant Breeding 111(3): 227-235. INRA, Stn. d'Amelioration des Plantes, F-63039 Clermont-Ferrand, France

Christensen, M. J., A. Leuchtmann, et al. (1993). Taxonomy of Acremonium endophytes of tall fescue (Festuca arundinacea), meadow fescue (Festuca pratensis) and perennial rye-grass (Lolium perenne). Mycological Research 97(9): 1083-1092. {a} AgRes. Grassland, Private Bag 11008, Palmerston North, NZ

Clay, K., S. Marks, et al. (1993). Effects of insect herbivory and fungal endophyte infection on competitive interactions among grasses. Ecology Washington D C 74(6): 1767-1777. {a} Dep. Biology, Indiana Univ., Bloomington, IN 47405, USA

Coblentz, W. K., J. O. Fritz, et al. (1993). Baling system for making laboratory-scale hay bales. Agronomy Journal 85(4): 962-965. {a} Dep. Agron., Kansas State Univ., Manhattan, KS 66506, USA

Cowling, W. A. and J. C. Clements (1993). Association between collection site soil pH and chlorosis in Lupinus angustifolius induced by a fine-textured, alkaline soil. Australian Journal of Agricultural Research 44(8): 1821-1836. {a} Western Aust. Dep. Agric., South Perth, WA 6151, Australia

Cripps, R. W. and H. K. Bates (1993). Effect of cover crops on soil erosion in nursery aisles. Journal of Environmental Horticulture 11(1): 5-13. Sch. Agric., Tennessee Technological Univ., Cookeville, TN 38505

Cuttle, S. P. and P. C. Bourne (1993). Uptake and leaching of nitrogen from artificial urine applied to grassland on different dates during the growing season. Plant and Soil 150(1): 77-86. AFRC Inst. Grassland and Environmental Red., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Davies, D. A., M. Fothergill, et al. (1993). Assessment of contrasting perennial ryegrasses, with and without white clover, under continuous sheep stocking in uplands: 5. Herbage production, quality and intake in years 4-6. Grass and Forage Science 48(3): 213-222. {a} IGER, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Davies, O. D. and P. M. Haigh (1993). A comparison of formic acid and an acid-salt type additive on the performance of dairy cows in early lactation. Grass and Forage Science 48(1): 64-69. {a} ADAS, Trawsgoed, Aberystwyth, Dyfed SY23 4HT, UK

Deenen, P. J. A. G. and E. A. Lantinga (1993). Herbage and animal production responses to fertilizer nitrogen in perennial ryegrass swards. I. Continuous grazing and cutting. Netherlands Journal of Agricultural Science 41(3): 179-203. {a} Dep. Theoretical Production Ecol., Wageningen Agric. Univ., P.O. Box 430, 6700 AK Wageningen, Netherlands

Derrick, R. W., G. Moseley, et al. (1993). Intake, by sheep, and digestibility of chickweed, dandelion, dock, ribwort and spurrey, compared with perennial ryegrass. Journal of Agricultural Science 120(1): 51-61. {a} Dep. Agric. Sci., Univ. College Wales, Aberystwyth, Dyfed SY23 3DD, UK

Dirks, B. O. M. (1993). Diurnal and seasonal carbon dioxide exchange and its components in temperate grasslands in the Netherlands-an outline of the methodology. Water Air and Soil Pollution 70(1-4): 425-430. Dep. Theoretical Production Ecology, Wageningen Agriculture Univ., P.O. Box 430, 6700 AK Wageningen, Netherlands

Dixit, S. P. and P. K. Sharma (1993). Effect of lime and potassium on yield and uptake of nutrients in wheat (Triticum aestivum) soybean (Glycine max) linseed (Linum usitatissimum) cropping sequence in an acid alfisol. Indian Journal of Agricultural Sciences 63(6): 333-339. Himachal Pradesh Krishi Vishvavidyalaya, Palampur, Himachal Pradesh 176 062, India

Dolecek, C., S. Vrtala, et al. (1993). Molecular characterization of Phl p II, a major timothy grass (Phleum pratense) pollen allergen. FEBS Federation of European Biochemical Societies Letters 335(3): 299-304. {a} Inst. General Experimental Pathol., AKH, Univ. Vienna, Vaheringer Gurtel 18-20, A-1090 Vienna, Austria

Donovan, G. R. and B. A. Baldo (1993). Immunoaffinity analysis of cross-reacting allergens by protein blotting. Electrophoresis 14(9): 917-922. {a} Kolling Inst. Med. Res., Royal North Shore Hosp., NSW 2065, Austria

Dou, H. and D. Steffens (1993). Mobility and availability of phosphorus from organic and inorganic forms in the rhizosphere of Lolium perenne. Zeitschrift fuer Pflanzenernaehrung und Bodenkunde 156(4): 279-285. Inst. Pflanzenernaehrung, Justus-Liebig Univ., Suedanlage 6, D-35390 Giessen, Germany

Douglas, G. B. and A. G. Foote (1993). Growth of sheep's burnet and two dryland legumes under periodic mob-stocking with sheep. New Zealand Journal of Agricultural Research 36(4): 393-397. AgRes. Grasslands, Private Bag 11008, Palmerston North, New Zealand

Douglas, G. B., I. L. Gordon, et al. (1993). Effect of genotype and seed size on early vegetative growth of sheep's burnet. New Zealand Journal of Agricultural Research 36(1): 109-116. {a} AgRes., Grasslands Res. Centre, Private Bag 11008, Palmerston North, N.Z

Douglas, J. T. and C. E. Crawford (1993). The response of a ryegrass sward to wheel traffic and applied nitrogen. Grass and Forage Science 48(2): 91-100. {a} Scottish Cent. Agric. Eng., Bush Estate, Penicuik, Midlothian EH26 0PH, UK

Duncan, S., J. E. Barton, et al. (1993). Analysis of variation in isolates of Rhizoctonia solani random amplified polymorphic DNA assay. Mycological Research 97(9): 1075-1082. {a} Biotechnol. Programme, Sch. Biol. Environ. Sci., Murdoch Univ., Murdoch WA 6150, Australia

Eagles, C. F., J. Williams, et al. (1993). Recovery after freezing in Avena sativa L., Lolium perenne L. and Lolium multiflorum Lam. New Phytologist 123(3): 477-483. AFRC Inst. Grassland and Environmental Res. Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Eagling, D. R., O. Villalta, et al. (1993). Sources of resistance to barley yellow dwarf luteovirus in perennial ryegrass (Lolium perenne) L. Australian Journal of Agricultural Research 44(1): 33-40. {a} Inst. Plant Sci., Dep. Food Agric., Swan St., Burnley, Victoria 3121, Australia

Ekler, Z., F. Dutka, et al. (1993). Safener effects on acetochlor toxicity, uptake, metabolism and glutathione S-transferase activity in maize. Weed Research 33(4): 311-318. {a} General Motors Hungary, H-9971 Szentgotthard, Hungary

Elberse, W. T. and F. Berendse (1993). A comparative study of the growth and morphology of eight grass species from habitats with different nutrient availabilities. Functional Ecology 7(2): 223-229. DLO Cent. Agrobiol. Res., PO Box 14, NL-6700 AA Wageningen, The Neth

Elgersma, A., I. G. Nieboer, et al. (1993). The effect of temperature on seed set and seed development in detached spikelets of perennial ryegrass (Lolium perenne L.). Annals of Botany London 72(4): 337-340. {a} Dep. Agron., Agric. Univ., P.O. Box 341, 6700 AH Wageningen, Netherlands

Fahlbusch, B., W. D. Mueller, et al. (1993). Detection of crossreactive determinants in grass pollen extracts using monoclonal antibodies against group IV and group V allergens. Clinical and Experimental Allergy 23(1): 51-60. {a} Inst. Clinical Immunology, Friedrich-Schiller-Univ., Humboldtstr. 3, Jena O-6900, Germany

Fard, G. A. B. P., Y. Latchman, et al. (1993). T cell epitopes of the major fraction of rye grass Lolium perenne (Lol p I) defined using overlapping peptides in vitro and in vivo: I. Isoallergen clone1A. Clinical and Experimental Immunology 94(1): 111-116. {a} Dep. Immunol., Univ. Coll. London Med. Sch., Arthur Stanley House, 40-50 Tottenham St., London W1P 9PG, UK

Fedele, V., M. Pizzillo, et al. (1993). Grazing behavior and diet selection of goats on native pasture in southern Italy. Small Ruminant Research 11(4): 305-322. {a} Ist. Sperimentale per la Zootecnia, viale Basento 106, 85100 Potenza, Italy

Fothergill, M. and D. A. Davies (1993). White clover contribution to continuously stocked sheep pastures in association with contrasting perennial ryegrasses. Grass and Forage Science 48(4): 369-379. {a} IGER, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Francisco, O. J., B. R. Reghunath, et al. (1993). Discrimination between groups of tagasaste and escobon from the Canary Islands based on juvenile morphological characters. New Zealand Journal of Agricultural Research 36(2): 185-195. {a} Dep. Plant Biol., Ohio State Univ., 1735 Neil Ave., Columbus, OH 43210-1293, USA

Fulkerson, W. J. and K. Slack (1993). Estimating mass of temperate and tropical pastures in the subtropics. Australian Journal of Experimental Agriculture 33(7): 865-869. NSW Agric., Wollongbar Agric. Inst., Wollongbar, NSW 2477, Australia

Fulkerson, W. J., K. Slack, et al. (1993). Management of Lolium perenne/Trifolium repens pastures in the subtropics: I. Effect of defoliation interval, seeding rate and application of nitrogen and lime. Australian Journal of Agricultural Research 44(8): 1947-1958. NSW Agric., Wollongbar Agric. Inst., Wollongbar, NSW 2480, Australia

Gagnon, R., A. Akoum, et al. (1993). Lol p I-induced IL-4 and IFN-gamma production by peripheral blood mononuclear cells of atopic and nonatopic subjects during and out of the pollen season. Journal of Allergy and Clinical Immunology 91(4): 950-956. {a} Centre Rech. Inflammation Immunologie Rhumatologie, Room 9800, Centre Recherche du Cent. Hospitalier, Univ. Laval, 2705 boulevard Laurier, Ste-Foy, PQ G1V 4G2, Canada

Gahoonia, T. S. (1993). Influence of root-induced pH on the solubility of soil aluminium in the rhizosphere. Plant and Soil 149(2): 289-291. Sect. Soil Water Plant Nutr., Dep. Agric. Sci., Royal Vet. Agric. Univ., Thorvaldsensvej 40, DK-1871 Frederiksberg, Copenhagen, Denmark

Garten, C. T., Jr. (1993). Variation in foliar nitrogen-15 abundance and the availability of soil nitrogen on Walker Branch Watershed. Ecology Washington D C 74(7): 2098-2113. Environ. Sci. Div., Oak Ridge Natl. Lab., P.O. Box 2008, MS 6038, Oak Ridge, TN 37830-6038, USA

Goncharova, N. V., G. A. Ptitsyn, et al. (1993). ATP synthesis, oxygen evolution and carotenoid turnover in chloroplasts illuminated with short light flashes: A novel molecular oxygen evolution hypothesis. Biokhimiya 58(1): 70-80. {a} A.N. Bakh Inst. Biochem., Acad. Sci. Russ., Moscow, Russia

Griffiths, B. S. and S. Caul (1993). Migration of bacterial-feeding nematodes, but not protozoa, to decomposing grass residues. Biology and Fertility of Soils 15(3): 201-207. {a} Soil-Plant Dyn. Group, Cell. Environ. Physiol. Dep., Scott. Crop Res. Inst., Invergowrie, Dundee DD2 5DA, Scotl., UK

Guerra, F., C. Moreno, et al. (1993). Linear monitoring of patients sensitive to Olea and grass pollens treated with immunotherapy based on glutaraldehyde-modified (allergoid) extracts. Journal of Investigational Allergology and Clinical Immunology 3(4): 182-190. {a} Hosp. Univ., "Reina Sofia", Unidad Docente de Patol. General, Avda. Menendez Pidal s/n, E-14005 Cordoba, Espana

Guerra, M. (1993). Cytogenetics of rutaceae: V. High chromosomal variability in Citrus species revealed by CMA/DAPI staining. Heredity 71(3): 234-241. Departamento de Genetica, Centro de Ciencias Biologicas, Universidade Federal de Pernambuco, Recife 50.739, PE, Brazil

Guy, P. L. (1993). Barley yellow dwarf viruses in Japanese pasture grasses and lack of correlation with the presence of fungal endophytes. Plant Pathology Oxford 42(1): 1-5. Univ. Otago, Botany Dep., P.O. Box 56, Dunedin, New Zealand

Hall, M. H. (1993). Alfalfa growth following release from drought stress. Agronomy Journal 85(5): 991-994. Dep. Agronomy, Pennsylvania State Univ., University Park, PA 16802, USA

Halligan, E. A., M. B. Forde, et al. (1993). Discrimination of ryegrasses by heading date under various combinations of vernalization and daylength: Perennial ryegrass varieties. Plant Varieties and Seeds 6(3): 151-160. {a} Hortic. Food Res. Inst. New Zealand Ltd., Private Bag 11030, Palmerston North, New Zealand

Happ, K., M. B. McDonald, et al. (1993). Vigour testing in perennial ryegrass (Lolium perenne L.) seeds. Seed Science and Technology 21(2): 375-381. Dep. Agron., Ohio State Univ., Columbus, OH 43210, USA

Haycock, N. E. and G. Pinay (1993). Groundwater nitrate dynamics in grass and poplar vegetated riparian buffer strips during the winter. Journal of Environmental Quality 22(2): 273-278. {a} Dep. Agric. Water Management, Silsoe Coll., Cranfield Inst. Technol., Silsoe, Bedford MK45 4DT, Engl., UK

Haygarth, P. M., A. F. Harrison, et al. (1993). Geographical and seasonal variation in deposition of selenium to vegetation. Environmental Science and Technology 27(13): 2878-2884. {a} Inst. Grassland Environmental Res., North Wyke Res. Station, Okehampton, Devon EX20 2SB, UK

Hensgens, L. A. M., B. E. P. H. M. De, et al. (1993). Transient and stable expression of gusA fusions with rice genes in rice, barley and perennial ryegrass. Plant Molecular Biology 23(4): 643-669. {a} Inst. Mol. Plant Sci., Clusius Inst., Sect. 1-Molecular Biol., Leiden Univ., Wassenaarseweg 64, 2333 AL Leiden, Netherlands

Hignight, K. W., G. A. Muilenburg, et al. (1993). A clearing technique for detecting the fungal endophyte Acremonium sp. in grasses. Biotechnic and Histochemistry 68(2): 87-90. {a} Res. Dep., Advanta Seeds West Inc., Albany, Oregon

Hiscock, S. J. and H. G. Dickinson (1993). Unilateral incompatibility within the Brassicaceae: Further evidence for the involvement of the self-incompatibility (S)-locus. Theoretical and Applied Genetics 86(6): 744-753. Dep. Plant Sci., South Parks Rd., Oxford OX1 3RB, UK

Hooda, P. S. and B. J. Alloway (1993). Effects of time and temperature on the bioavailability of cadmium and lead from sludge-amended soils. Journal of Soil Science 44(1): 97-110. Environ. Sci. Unit, Geogr. Dep., Queen Mary Westfield Coll., Univ. London, Mile End Road, London E1 4NS, UK

Huang, J. W., D. L. Grunes, et al. (1993). Aluminum effects on calcium (calcium-45) translocation in aluminum-tolerant and aluminum-sensitive wheat (Triticum aestivum L.) cultivars: Differential responses of the root apex versus mature root regions. Plant Physiology Rockville 102(1): 85-93. {a} U.S. Plant Soil, Nutr. Lab., U.S. Dep. Agric., ARS, Cornell Univ. Ithaca, NY 14853, USA

Hume, D. E. and D. F. Chapman (1993). Oversowing of five grass species and white clover on a Taupo hill country pumice soil. New Zealand Journal of Agricultural Research 36(3): 309-322. AgRes., Grasslands Res. Centre, Private Bag 11008, Palmerston North, New Zealand

Hunt, K. L. and J. H. Dunn (1993). Compatibility of Kentucky bluegrass and perennial ryegrass with tall fescue in transition zone turfgrass mixtures. Agronomy Journal 85(2): 211-215. {a} Hortic. Dep., Univ. Mo., Columbia, MO 65211

Iglesias, J. E. and C. E. Alvarez (1993). Apparent availability of nitrogen in composted municipal refuse. Biology and Fertility of Soils 16(4): 313-318. {a} Inst. Productos Naturales Agrobiologia de Canarias, CSIC, Avda. Francisco Sanchez 3, E-38206 La Laguna, Tenerife, Canary Islands, Spain

Iglesias, J. E., G. V. Perez, et al. (1993). City refuse compost as a phosphorus source to overcome the phosphorus fixation capacity of sesquioxide-rich soils. Plant and Soil 148(1): 115-127. {a} Inst. Natural Products Agrobiology, CSIC, E-38206 La Laguna, Tenerife, Canary Islands, Spain

Iji, P. A., G. Tarawali, et al. (1993). The influence of stage of development and sowing depth on seed quality and seedling emergence of Gliricidia sepium. Seed Science and Technology 21(1): 197-202. {a} Dep. Anim. Sci., Ahmadu Bello Univ., P.M.B. 1044, Zaria, Nigeria

Imada, T., K. Razmjoo, et al. (1993). Response of perennial ryegrass (Lolium perenne L.) cultivars to heat stress. Journal of Japanese Society of Grassland Science 39(2): 225-235. {a} Japan Turfgrass Inc., Narashino, Chiba 275, Japan

Ingvarsson, P. K. and S. Lundberg (1993). The effect of a vector-borne disease on the dynamics of natural plant populations: A model for Ustilago violacea infection of Lychnis viscaria. Journal of Ecology 81(2): 263-270. Dep. Ecol., Theoretical Ecol., Ecol. Build., Lund Univ., S-223 62 Lund, Sweden

Ismail, A. E. and M. F. M. Eissa (1993). Plant parasitic nematodes associated with ornamental palms in three botanic gardens in Egypt. Pakistan Journal of Nematology 11(1): 53-59. Dep. Plant Pathol., National Research Centre, Dokki, Cairo, Egypt

Isselstein, J. and P. Ridder (1993). Studies on drying of some grassland herbs under controlled conditions. Wirtschaftseigene Futter 39(2): 136-145. Inst. Pflanzenbau Pflanzenzuechtung II Gruenlandwirtschaft Futterbau, Justus-Liebig-Univ. Giessen, Ludwigstr. 23, 35390 Giessen, Germany

Ito, M., H. Kuwakino, et al. (1993). Relationship between the development of dormant tiller buds and the successive and internode formation of mother shoots in reed canarygrass (Phalaris arundinacea L.) grown under a sward condition. Journal of Japanese Society of Grassland Science 38(4): 469-477. Fac. Agric., Niigata Univ., 8050, Igarashi-2, Niigata-shi, Japan

Jansen, R. C. and N. A. P. M. Den (1993). A statistical mixture model for estimating the proportion of unreduced pollen grains in perennial ryegrass (Lolium perenne L.) via the size of pollen grains. Euphytica 70(3): 205-215. {a} Dep. Population Biol., Centre Plant Breeding Reproduction Res., PO Box 16, 6700 AA Wageningen, Netherlands

Johansson, G. (1993). Carbon distribution in grass (Festuca pratensis L.) during regrowth after cutting: Utilization of stored and newly assimilated carbon. Plant and Soil 151(1): 11-20. Dep. Soil Sci., Div. Plant Nutr. Soil Fertility, Swedish Univ. Agric. Sci., P.O. Box 7014, S-750 07 Uppsala, Sweden

Johnson, B. J. and S. H. Bundschuh (1993). Effect of dithiopyr timing on establishment of three cool-season turfgrass species. Weed Technology 7(1): 169-173. {a} Univ. Ga., Georgia Stn., Griffin, GA 30223-1797, USA

Jung, G. A. and J. A. Shaffer (1993). Component yields and quality of binary mixtures of lucerne and perennial, Italian or short rotation hybrid ryegrass. Grass and Forage Science 48(2): 118-125. {a} U.S. Reg. Pasture Res. Lab., University Park, PA 16802, USA

Kabuga, J. D. (1993). The standing behaviour of N'dama cattle during idling in a night paddock. Applied Animal Behaviour Science 37(1): 17-29. Dep. Anim. Sci., Univ. Sci. and Technol., Kumasi, Ghana

Kanno, T., M. Fukuyama, et al. (1993). Characteristics of higher nodal-position tillering of festlolium cv. Tandem under intensive grazing. Journal of Japanese Society of Grassland Science 38(4): 433-439. Natl. Grassland Res. Inst., Nishinasuno, Tochigi 329-27, Japan

Katayama, H. and Y. Ogihara (1993). Structural alterations of the chloroplast genome found in grasses are not common in monocots. Current Genetics 23(2): 160-165. {a} Kihara Inst. Biol. Res., Yokohama City Univ., Nakamura-cho 2-120-3, Yokohama 232, Japan

Keeney, D. R. and T. H. Deluca (1993). Des Moines River nitrate in relation to watershed agricultural practices: 1945 versus 1980s. Journal of Environmental Quality 22(2): 267-272. {a} Leopold Center Sustainable Agric., Iowa State Univ., Ames, IA 50011, USA

Kiang, A. S., V. Connolly, et al. (1993). Cytoplasmic male sterility (CMS) in Lolium perenne L.: 1. Development of a diagnostic probe for the male-sterile cytoplasm. Theoretical and Applied Genetics 86(6): 781-787. {a} Dep. Genetics, Trinity Coll., Dublin 2, Ireland

Koga, H., M. J. Christensen, et al. (1993). Incompatibility of some grass-Acremonium endophyte associations. Mycological Research 97(10): 1237-1244. {a} National Grassland Res. Inst., Nishinasuno, Tochigi 329-27, Japan

Kraus, E., Y. Aydemir, et al. (1993). Yield advantage of a "slow-" over a "fast-" respiring population of Lolium perenne cv. S23 depends on plant density. New Phytologist 123(1): 39-44. {a} Dep. Plant Ecology Evolutionary Biology, Univ. Utrecht, Sorbonnelaan 16, 3584 CA Utrecht, Netherlands Antilles

Kraus, E., H. Lambers, et al. (1993). The effect of handling on the yield of two populations of Lolium perenne selected for differences in mature leaf respiration rate. Physiologia Plantarum 89(2): 341-346. {a} Dep. Plant Ecol., Evolutionary Biol., Utrecht Univ., Sorbonnelaan 16, 3584 CA Utrecht, Netherlands

Krupa, Z., G. Oquist, et al. (1993). The effects of cadmium on photosynthesis of Phaseolus vulgaris: A fluorescence analysis. Physiologia Plantarum 88(4): 626-630. {a} Dep. Plant Physiol., Maria Curie-Sklodowska Univ., Akademicka 19, 20-033 Lublin, Poland

Laine, P., A. Ourry, et al. (1993). Kinetic parameters of nitrate uptake by different catch crop species: Effects of low temperatures or previous nitrate starvation. Physiologia Plantarum 88(1): 85-92. {a} Station Agronomie, INRA, Beaucouze, 49000 Angers, France

Lambais, M. R. and E. J. B. N. Cardoso (1993). Response of Stylosanthes guianensis to endomycorrhizal fungi inoculation as affected by lime and phosphorus applications: II. Nutrient uptake. Plant and Soil 150(1): 109-116. Departamento de Ciencia do Solo, Escola Superior de Agricultura Luis de Queiroz, Universidade de Sao Paulo, Caixa Postal 9, 13400 Piracicaba, SP, Brazil

Lamond, W. J. and G. Graham (1993). Relationship between air conditions and the drying rate of thin-layers of grass. Journal of Agricultural Science 121(1): 21-28. Scott. Center Agric. Eng., Scott. Agric. College, Bush Estate, Penicuik, Midlothian EH26 0PH, UK

Laws, J. A. (1993). A comparison of the output from permanent swards containing clover or receiving nitrogen fertilizer when continuously grazed by ewes and lambs. Grass and Forage Science 48(3): 238-248. AFRC Inst. Grassland Environmental Res., North Wyke, Okehampton, Devon EX20 2SB, UK

Lee, C. K., H. A. Eagles, et al. (1993). Genetic variation within white clover (Trifolium repens L.) populations from north-central Victoria. Australian Journal of Experimental Agriculture 33(3): 333-336. {a} Dep. Agric., Pastoral and Vet. Inst., Private Bag 105, Hamilton, Vic. 3300, Australia

Lex, J. and U. Simon (1993). Effect of seed mixture and management intensity on yield components and feeding value of white clover/grass-mixtures: 1. Proportion of white clover and dry matter yield. Wirtschaftseigene Futter 39(1): 69-86. {a} Technische Univ. Muenchen, Zentrale Agrardokumentation, Abt. Gruenland Futterbau, D-85350 Freising-Weihenstephan, Germany

Li, L., Z. P. Wang, et al. (1993). Urea nitrogen uptake efficiency of ryegrass (Lolium perenne L.) in the presence of urease inhibitors. Biology and Fertility of Soils 15(3): 225-228. {a} Fac. Agric. Appl. Biol. Sci., Univ. Ghent, Coupure 653, B-9000 Ghent, Belgium

Lindstrom, J. T., S. Sun, et al. (1993). A novel fungal protease expressed in endophytic infection of Poa species. Plant Physiology Rockville 102(2): 645-650. {a} Plant Sci. Dep., Rutgers Univ., New Brunswick, NJ 08903, USA

Loss, B. P. (1993). Morphological variation in Lolium (Poaceae) as a measure of species relationships. Plant Systematics and Evolution 188(1-2): 87-99. Centre Plant Breeding and Reproduction Res., P.O. Box 16, NL-6700 AA, Wageningen, Netherlands

Madsen, S., A. Olesen, et al. (1993). Self-fertile doubled haploid plants of perennial ryegrass (Lolium perenne L.). Plant Breeding 110(4): 323-327. {a} Dep. Agric. Sci., Sect. Plant Breeding and Biotechnol., Royal Vet. and Agric. Univ., Thorvaldsenvej 40, DK-1871 Frederiksberg C, Denmark

Marshall, A. H., P. A. Hollington, et al. (1993). Spring defoliation of white clover seed crops: 2. Potential harvestable seed yield and seed yield components of contrasting white clover cultivars. Grass and Forage Science 48(3): 310-316. {a} AFRC Inst. Grassland Environmental Res., Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Marshall, J. D., Y. Wen, et al. (1993). In vitro synthesis of IL-4 by human CD4+ T cells requires repeated antigenic stimulation. Cellular Immunology 152(1): 18-34. {a} Dep. Pediatr., Room H307, Stanford Univ., Stanford, CA 94305-5119, USA

Martins, M. A. (1993). The role of the external mycelium of arbuscular mycorrhizal fungi in the carbon transfer process between plants. Mycological Research 97(7): 807-810. {a} Dep. Biol. Geral, Univ. Federal de Vicosa, 36.570 Vicosa MG, Brazil

McNeill, A. M., M. Wood, et al. (1993). The use of a closed system flow-through enclosure apparatus for studying the effects of partial pressure of dinitrogen in the atmosphere on growth of Trifolium repens L. and Lolium perenne L. Journal of Experimental Botany 44(263): 1021-1028. {a} Dep. Soil Science, Univ. Reading, London Road, Reading, Berks. RG1 5AQ, UK

Mengel, K. and K. Uhlenbecker (1993). Determination of available interlayer potassium and its uptake by ryegrass. Soil Science Society of America Journal 57(3): 761-766. {a} Inst. Plant Nutrition, Justus-Liebig-Univ., Sudanlage 6, 6300 Giessen, Germany

Meredith, R. H. and I. B. Warboys (1993). Accelerated drying of cut lucerne (Medicago sativa L.) by chemical treatments based on inorganic potassium salts of alkali metal carbonates. Grass and Forage Science 48(2): 126-135. {a} Wye Coll., Univ. London, Ashford, Kent TN25 5AH, UK

Metz, A. M. and K. S. Browning (1993). Sequence of a cDNA encoding wheat eukaryotic protein synthesis initiation factor 4A. Gene Amsterdam 131(2): 299-300. {a} Dep. Chem. Biochem., Univ. Texas at Austin, Austin, TX 78712, USA

Minguez, M. I., N. B. Ruiz, et al. (1993). Faba bean productivity and optimum canopy development under a Mediterranean climate. Field Crops Research 33(4): 435-447. {a} Dep. Produccion Vegetal: Fitotecnia, E.T. Sup. Ing. Agronomos, Avda., Complutense s/n, 28040 Madrid, Spain

Moloney, S. C., J. A. Lancashire, et al. (1993). Introduction, production, and persistence of five grass species in dry hill country: 7. Central Plateau, North Island, New Zealand. New Zealand Journal of Agricultural Research 36(1): 49-59. AgRes., Grasslands Res. Centre, Private Bag 11008, Palmerston North, N.Z

Morgan, M. (1993). Fruit to flower ratios and trade-offs in size and number. Evolutionary Ecology 7(3): 219-232. Dep. Ecol. Evol., The Univ. Chicago, 1101 E. 57th St., Chicago, IL 60637, USA

Moss, R. A. and A. Vlassoff (1993). Effect of herbage species on gastro-intestinal roundworm populations and their distribution. New Zealand Journal of Agricultural Research 36(3): 371-375. {a} AgResearch, Winchmore Res. Station, Private Bag, Ashburton, New Zealand

Mountford, J. O., K. H. Lakhani, et al. (1993). Experimental assessment of the effects of nitrogen addition under hay-cutting and aftermath grazing on the vegetation of meadows on a Somerset peat moor. Journal of Applied Ecology 30(2): 321-332. {a} Inst. Terrestrial Ecol., Monks Wood Experimental Station, Abbots Ripton, Huntingdon PE17 2LS

Murillo, J. M., F. Cabrera, et al. (1993). Effect of a depotassified, concentrated beet vinasse on seedling emergence, dry matter production and nutrient contents of ryegrass. Investigacion Agraria Produccion y Proteccion Vegetales 8(1): 37-48. Inst. de Recursos Naturales y Agrobiol. de Sevilla, CSIC, Apartado de Correos 1052, 41080 Sevilla

Nagata, H. (1993). The structure of a local population and dispersal pattern in the Styan's grasshopper warbler, Locustella pleskei. Ecological Research 8(1): 1-9. Laboratory Wildlife Conservation, National Institute Environmental Studies, 16-2, Onogawa, Tsukuba, Ibaraki 305, Japan

Newman, E. I. and W. R. Eason (1993). Rates of phosphorus transfer within and between ryegrass (Lolium perenne) plants. Functional Ecology 7(2): 242-248. {a} Dep. Bot., Univ. Bristol, Bristol BS8 1UG, UK

Niggli, U., J. Nosberger, et al. (1993). Effects of nitrogen fertilization and cutting frequency on the competitive ability and the regrowth capacity of Rumex obtusifolius L. in several grass swards. Weed Research 33(2): 131-137. {a} Forschungsinst. Biol. Landbau, CH-4104 Oberwil, Switzerland

Nishi, K., M. Yoshida, et al. (1993). Mating of the fission yeast occurs independently of pmdl positive gene product, a structural homologue of budding yeast STE6 and mammalian P-glycoproteins. Archives of Microbiology 160(2): 162-165. {a} Dep. Agric. Chem., Fac. Agric., Univ. Tokyo, Bunkyo-ku, Tokyo 113, Japan

Oliveira, J. A. (1993). Breeding perennial ryegrass for reducing costs in animal production. Investigacion Agraria Produccion y Proteccion Vegetales 8(1): 5-16. Centro de Investigaciones Agrarias de Mabegondo, Apartado 10, 15080 La Coruna

Oyen, J., S. O. Grimstad, et al. (1993). Fertilizing regimes on soccer pitches sown with perennial ryegrass. Norsk Landbruksforsking 7(2): 191-200. {a} Saerheim Res. Stn., N-4062 Klepp St., Norway

Panjaitan, M. u., W. W. Stuer, et al. (1993). Growth of forage tree legumes at four agro-climatic sites in Indonesia. Journal of Agricultural Science 120(3): 311-317. {a} Dep. Agronomy Soil Sci., Univ. New England, Armidale, NSW 2351, Australia

Pavi, V. (1993). Protein degradability of grasses in the rumen of sheep. Poljoprivredna Znanstvena Smotra 58(4): 317-330. Agron. Fak. Sveucilisita u. Zagrebu, Zavod za Specijalno Stocarstvo, Svetosimunska 25, 41000 Zagreb, Yugoslavia

Peicea, I. and C. Arion (1993). The influence of copper, manganese, nickel and cobalt on the germination and development "in vitro" of some plant seeds. Studii si Cercetari de Biologie Seria Biologie Vegetala 45(1): 85-90. Inst. Stiinte Biol., Splaiul Independentei nr. 296, Bucuresti, Romania

Penning, P. D., A. J. Parsons, et al. (1993). The effects of group size on grazing time in sheep. Applied Animal Behaviour Science 37(2): 101-109. {a} AFRC Inst. Grassland and Environmental Res., North Wyke Res. Station, Okehampton EX20 2SB, UK

Perez, V. R., X. D. Wen, et al. (1993). Culture of vegetative and floral meristems in ryegrasses: Potential targets for microballistic transformation. Journal of Plant Physiology 142(5): 610-617. {a} Inst. Sciences, Swiss Federal Inst. Technology, CH-8092 Zurich, Switzerland

Pestalozzi, M. (1993). Different management of permanent grassland and leys on arable land. Norsk Landbruksforsking 7(3-4): 297-312. Soerheim Research Station, N-4062 Klepp Stasjon, Norway

Petersen, A., W. M. Becker, et al. (1993). Characterization of grass group I allergens in timothy grass pollen. Journal of Allergy and Clinical Immunology 92(6): 789-796. {a} Div. Allergology, Forschungsinst. Borstel, Parkallee 22, D-23845 Borstel, Germany

Petersen, A., G. Schramm, et al. (1993). Comparison of four grass pollen species concerning their allergens of grass group V by 2D immunoblotting and microsequencing. Biological Chemistry Hoppe Seyler 374(9): 855-861. Forschungsinstitut Borstel, Laborgruppe Allergol., Parkallee 22, D-23845 Borstel, Germany

Peuke, A. D. and W. D. Jeschke (1993). The uptake and flow of carbon, nitrogen and ions between roots and shoots in Ricinus communis L.: I. Grown with ammonium or nitrate as nitrogen source. Journal of Experimental Botany 44(264): 1167-1176. {a} Julius-von-Sachs-Institut fuer Biowissenschaften, Mittlerer Dallenbergweg 64, D-8700 Wuerzburg, Germany

Phelps, K., R. H. Collier, et al. (1993). Monte Carlo simulation method for forecasting the timing of pest insect attacks. Crop Protection 12(5): 335-342. {a} Hortic. Res. Int., Wellesbourne, Warwick CV35 9EF, UK

Piccinni, M. P., F. Mecacci, et al. (1993). Aeroallergen sensitization can occur during fetal life. International Archives of Allergy and Immunology 102(3): 301-303. {a} Div. Clinical Immunol. Allergy, Inst. Clinical Med. 3, Univ. Florence, 85, viale Morgagni, I-50134 Florence, Italy

Pollock, K. M. and D. Scott (1993). Introduction, production, and persistence of five grass species in dry hill country: 3. High country, Tekapo, New Zealand. New Zealand Journal of Agricultural Research 36(1): 19-24. AgRes., Canterbury Agric. Sci. Cent., P.O. Box 60, Lincoln, N.Z

Posselt, U. K. (1993). Hybrid production in Lolium perenne based on incompatibility. Euphytica 71(1-2): 29-33. Landessaatzuchtanstalt, Univ. Hohenheim, D-70593 Stuttgart, Germany

Powles, J., J. Wiseman, et al. (1993). Effect of chemical structure of fats upon their apparent digestible energy value when given to growing/finishing pigs. Animal Production 57(1): 137-146. {a} Univ. Nottingham Dep. Agric. Hortic., Sutton Bonington, Loughborough LE12 5RD, England, UK

Pronczuk, M. and B. Zagdanska (1993). Effect of Microdochium nivale and low temperature on winter survival of perennial ryegrass. Journal of Phytopathology Berlin 138(1): 1-8. {a} Plant Pathol. Dep., Plant Breeding Acclimatization Inst., Radzikow, 00-950 Warszawa, PO Box 1019, Poland

Ramsell, J., A. J. C. Malloch, et al. (1993). When grazed by Tipula paludosa, Lolium perenne is a stronger competitor of Rumex obtusifolius. Journal of Ecology 81(4): 777-786. Div. Biol. Sci., Inst. Environ. Biol. Sci., Lancaster Univ., Bailrigg, Lancaster LA1 4YQ, UK

Razmjoo, K. and S. Kaneko (1993). Effect of fertility ratios on growth and turf quality of perennial ryegrass (Lolium perenne L.) in winter. Journal of Plant Nutrition 16(8): 1531-1538. Taisei Biotechnol. Res. Center, 3-6 Akanehama, Narashino-shi, Chiba 275, Japan

Roberts, A. M., L. J. Bevan, et al. (1993). Nucleotide sequence of cDNA encoding the group II allergen of cocksfoot/orchard grass (Dactylis glomerata), Dac g II. Allergy Copenhagen 48(8): 615-623. {a} Molecular Biol. Research Group, Univ. Dep. Clinical Biochem., Wolfson Research Lab., Queen Elizabeth Med. Centre, Birmingham B15 2TH, UK

Saggar, S., M. J. Hedley, et al. (1993). Assessment of the relative agronomic effectiveness of phosphate rocks under glasshouse conditions. Fertilizer Research 34(2): 141-151. {a} Soil Plant Processes Div., Manaaki Whenua-Landcare Res., Private Bag 31902, Lower Hutt, NZ

Sartain, J. B. (1993). Interrelationships among turfgrasses, clipping recycling, thatch, and applied calcium, magnesium, and potassium. Agronomy Journal 85(1): 40-43. Soil Science Dep., Univ. Florida, Gainesville, FL 32611

Selmer, O. I., A. R. Henderson, et al. (1993). Cell wall degrading enzymes for silage: 2. Aerobic stability of enzyme-treated laboratory silages. Grass and Forage Science 48(1): 55-63. {a} Dep. Anim. Sci., Agric. Univ. Norway, P.O. Box 25, N-1432 Aas NLH, Norway

Selmer, O. I., A. R. Henderson, et al. (1993). Cell wall degrading enzymes for silage: 1. The fermentation of enzyme-treated ryegrass in laboratory silos. Grass and Forage Science 48(1): 45-54. {a} Dep. Anim. Sci., Agric. Univ. Norway, P.O. Box 25, N-1432 Aas NLH, Norway

Semiadi, G., T. N. Barry, et al. (1993). Growth and venison production from red deer (Cervus elaphus) grazing red clover (Trifolium pratense) or perennial ryegrass (Lolium perenne)/white clover (Trifolium repens) pasture. Journal of Agricultural Science 121(2): 265-271. {a} Massey Univ., Palmerston North, New Zealand

Shanks, C. H., Jr. and J. D. Chamberlain (1993). Strawberry fruit yield and vegetative growth and pest populations in plantings with and without cover crops. Hortscience 28(12): 1172-1173. Res. Extension Unit, Washington State Univ., 1919 N.E. 78th Street, Vancouver, WA 98665-9752, USA

Shevchenko, N. A., O. E. Shvedova, et al. (1993). Use of electrophoresis of prolamines for the analysis of ryegrass-fescue hybrids. Fiziologiya i Biokhimiya Kul'turnykh Rastenii 25(5): 479-484. {a} Inst. Plant Physiol. Genet., Acad. Sci. Ukr., Kiev, Ukraine

Sidoli, A., E. Tamborini, et al. (1993). Cloning, expression, and immunological characterization of recombinant Lolium perenne allergen Lol p II. Journal of Biological Chemistry 268(29): 21819-21825. Dipartimento di Ricerca Biologica Tecnologica, Istituto Scientifico H San Raffaele, via Olgettina, 58, 20132 Milano, Italy

Spanu, F., A. Tava, et al. (1993). Variability of oestrogenic isoflavone content in a collection of subterranean clover from Sicily. Journal of Genetics and Breeding 47(1): 27-34. {a} Ist. Sperimentale Colture Foraggere, viale Piacenza 29, 20075 Lodi, Italy

Stevens, D. R., J. A. Lancashire, et al. (1993). Introduction, production, and persistence of five grass species in dry hill country: 1. Introduction, site descriptions, and general methods. New Zealand Journal of Agricultural Research 36(1): 1-10. {a} AgRes., Gore Res. Centre, Private Bag 50022, Gore, N.Z

Stevens, D. R. and J. D. Turner (1993). Introduction, production, and persistence of five grass species in dry hill country: 2. Fairplace, Southland, New Zealand. New Zealand Journal of Agricultural Research 36(1): 11-17. AgRes., Gore Res. Cent., Private Bag 50022, Gore, N.Z

Stewart, T. M., C. F. Mercer, et al. (1993). Development of Meloidogyne naasi on endophyte-infected and endophyte-free perennial ryegrass. Australasian Plant Pathology 22(2): 40-41. Dep. Plant Sci., Massey Univ., Private Bag, Palmerston North, New Zealand

Sulc, R. M., K. A. Albrecht, et al. (1993). Ryegrass companion crops for alfalfa establishment: II. Forage quality in the seeding year. Agronomy Journal 85(1): 75-80. {a} Dep. Agronomy, Ohio State Univ., 2021 Coffey Rd., Columbus, Ohio 43210

Sun, D. and M. J. Liddle (1993). A survey of trampling effects on vegetation and soil in eight tropical and subtropical sites. Environmental Management 17(4): 497-510. {a} Div. Australian Environ. Studies, Griffith Univ., Nathan, Queensland 4111, Australia

Sun, D. and M. J. Liddle (1993). Plant morphological characteristics and resistance to simulated trampling. Environmental Management 17(4): 511-521. P.O. Box 210, Atherton, Queensland 4883, Australia

Sun, D. and M. J. Liddle (1993). Trampling resistance, stem flexibility and leaf strength in nine Australian grasses and herbs. Biological Conservation 65(1): 35-41. {a} Queensland Forest Res. Inst., 83 Main St., PO Box 210, Atherton, Queensland 4883, Australia

Sun, D. and M. J. Liddle (1993). The morphological responses of some Australian tussock grasses and the importance of tiller number in their resistance to trampling. Biological Conservation 65(1): 43-49. {a} Queensland Forest Res. Inst., 83 Main St., PO Box 210, Atherton, Queensland 4883, Australia

Suphioglu, C., M. B. Singh, et al. (1993). Peptide mapping analysis of group I allergens of grass pollens. International Archives of Allergy and Immunology 102(2): 144-151. {a} Sch. Botany, Univ. Melbourne, Grattan St., Parkville, VIC 3052, Australia

Swift, G., J. E. Vipond, et al. (1993). A comparison of diploid and tetraploid perennial ryegrass and tetraploid ryegrass/white clover swards under continuous sheep stocking at controlled sward heights: 1. Sward characteristics. Grass and Forage Science 48(3): 279-289. {a} Scottish Agric. College, Bush Estate, Penicuik, Midlothian EH26 0PH, UK

Takahashi, Y., I. Otani, et al. (1993). Studies on allelopathic interactions among some grassland species: V. Collection and isolation of allelopathic hydrophobic compounds from the root exudates of Lolium perenne L. Journal of Japanese Society of Grassland Science 39(2): 236-245. Chugoku Natl. Agric. Exp. Stn., Oda, Shimane 694, Japan

Takahashi, Y., I. Otani, et al. (1993). Studies on allelopathic interactions among some grassland species: IV. Observation of the allelopathic interaction between Lolium perenne L. and Trifolium repens L. grown in soil culture. Journal of Japanese Society of Grassland Science 38(4): 478-486. {a} Chugoku Natl. Agric. Exp. Station, Oda, Shimane 694, Japan

Taylor, P. E., K. Spuck, et al. (1993). Detection of brassinosteroids in pollen of Lolium perenne L. by immunocytochemistry. Planta Heidelberg 189(1): 91-100. {a} Sch. Agriculture Forestry, Univ. Melbourne, Parkville, Vic. 3052, Australia

Taylor, R. W., I. O. Ibeabuchi, et al. (1993). Heavy metal concentration in forage grasses and extractability from some acid mine spoils. Water Air and Soil Pollution 68(3-4): 363-372. Dep. Plant and Soil Sci., Ala. A and M Univ., Normal, AL 35762, USA

Teramoto, E. (1993). Dynamical structure of energy trophic levels. Ecological Modelling 69(1-2): 135-147. Dep. Appl. Math. Inf., Ryukoku Univ., Seta, Ohtsu 520-21, Japan

Thom, E. R., D. D. Wildermoth, et al. (1993). Growth and persistence of perennial ryegrass and white clover direct-drilled into a paspalum-dominant dairy pasture treated with glyphosate. New Zealand Journal of Agricultural Research 36(2): 197-207. Dairying Res. Corp., Private Bag 3123, Hamilton, New Zealand

Thomas, H. and A. R. James (1993). Freezing tolerance and solute changes in contrasting genotypes of Lolium perenne L. acclimated to cold and drought. Annals of Botany London 72(3): 249-254. {a} Environ. Biol. Dep., AFRC Inst. Grassland Environ. Res., Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Thomas, H. M. and B. J. Thomas (1993). Synaptonemal complex formation in two allohexaploid Festuca species and a pentaploid hybrid. Heredity 71(3): 305-311. {a} AFRC Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Wales SY23 3EB, UK

Thompson, K., S. R. Band, et al. (1993). Seed size and shape predict persistence in soil. Functional Ecology 7(2): 236-241. Unit Comparative Plant Ecol., Dep. Anim. Plant Sciences, Univ., Sheffield S10 2TN, UK

Thompson, L. (1993). The influence of the radiation environment around the node on morphogenesis and growth of white clover (Trifolium repens). Grass and Forage Science 48(3): 271-278. NERC Center Population Biol., Imperial College, Silwood Park, Ascot, Berks SL5 7PY, UK

Thornton, B., P. Millard, et al. (1993). The relative contribution of remobilization and root uptake in supplying nitrogen after defoliation for regrowth of laminae in four grass species. New Phytologist 124(4): 689-694. {a} Plants Div., Macaulay Land Use Res. Inst., Craigiebuckler, Aberdeen AB9 2QJ, Scotland, UK

Thornton, B., P. Millard, et al. (1993). The effects of temperature and form of nitrogen supply on the relative contribution of root uptake and remobilization in supplying nitrogen for laminae regrowth of Lolium perenne L. Journal of Experimental Botany 44(267): 1601-1606. {a} Plants Div., Macaulay Land Use Res. Inst., Craigiebuckler, Aberdeen AB9 2QJ, UK

Tillmann, P. (1993). The elasticity in utilizing grassland swards differing in botanical composition. Wirtschaftseigene Futter 38(3): 217-232. Inst. Pflanzenbau und Gruenland, Lehrstuhl Gruenlandlehre, Univ. Hohenheim, Postfach 700562, 7000 Stuttgart 70

Tsugawa, H., N. Kawasaki, et al. (1993). Dry matter production and leaf area expansion of the current year's canopy in a natural kudzu (Pueraria lobata CHWI) stand, established in a field left abandoned for about 15 years. Journal of Japanese Society of Grassland Science 38(4): 440-452. {a} Fac. Agric., Kobe Univ., Rokkodai-cho, Nada-ku, Kobe 657, Japan

Tsuyuzaki, S. (1993). Seed viability after immersion in K-2CO-3 solution. Seed Science and Technology 21(2): 479-481. Dep. Botany KB-15, Univ. Wash., Seattle, WA 98198, USA

Turkington, R. and E. Klein (1993). Influence of neighbors on node production, stolon growth, and branching of Trifolium repens transplants in a pasture. Canadian Journal of Botany 71(9): 1266-1269. {a} Botany Dep., Univ. British Columbia, Vancouver, BC V4K 1Z4, Canada

Turkington, R., E. Klein, et al. (1993). Interactive effects of nutrients and disturbance: An experimental test of plant strategy theory. Ecology Washington D C 74(3): 863-878. {a} Dep. Bot., Univ. B.C., Vancouver, B.C. V6T 1Z4, Canada

Van, D. M. H. M., M. A. C. M. Zaal, et al. (1993). Isolation of viable egg cells of perennial ryegrass (Lolium perenne L.). Protoplasma 173(1-2): 86-89. {a} Dep. Cell Biol., Centre Plant Breeding and Reproduction Res., CPRO-DLO, P.O. Box 16, NL-6700 AA Wageningen, Netherlands

Van, D. M. H. M., M. A. C. M. Zaal, et al. (1993). Optimization of isolation and storage of sperm cells from pollen of perennial ryegrass (Lolium perenne L.). Sexual Plant Reproduction 6(1): 64-70. {a} Dep. Cell Biol., Cent. Plant Breeding and Reproduction Res., CPRO-DLO, PO Box 16, 6700 AA Wageningen, The Neth

Van, R. A. L., D. G. Stout, et al. (1993). Soil properties associated with alfalfa winter survival at Kamloops, British Columbia. Canadian Journal of Soil Science 73(1): 141-146. {a} Res. Stn., Agric. Can., 3015 Ord Rd., Can. V2B 8A9

Van, t. H. W., M. F. J. Van, et al. (1993). Epitope mapping of the cat (Felis domesticus) major allergen Fel d I by overlapping synthetic peptides and monoclonal antibodies against native and denatured Fel d I. Allergy Copenhagen 48(4): 255-263. {a} P.O. Box 9406, 1006 AK Amsterdam, Netherlands Antilles

Verma, V. K., R. K. Mishra, et al. (1993). Response of dwarf wheat varieties to varying levels of nitrogen under irrigated condition at Raigarh district of Chhattisgarh region of Madhya Pradesh. Advances in Plant Sciences 6(1): 1-9. Indira Gandhi Agric. Univ., Reg. Agric. Res. Stn., Sarkanda, Bilaspur 495 001, India

Vrtala, S., W. R. Sperr, et al. (1993). CDNA cloning of a major allergen from Timothy grass (Phleum pratense) pollen: Characterization of the recombinant PhI p V allergen. Journal of Immunology 151(9): 4773-4781. Inq.: Mr. Rudolf Valenta, Inst. Gen. Experimental Pathol., AKH, Univ. Vienna, Waehringerguertel 18-20, A-1090 Vienna, Austria

Wang, Z. Y., J. Nagel, et al. (1993). Plants from cell suspension-derived protoplasts in Lolium species. Plant Science Limerick 94(1-2): 179-193. {a} Inst. Plant Sci., Swiss Federal Inst. Technology, CH-8092 Zurich, Switzerland

Wardle, D. A., K. S. Nicholson, et al. (1993). Influence of plant age on the allelopathic potential of nodding thistle (Carduus nutans L.) against pasture grasses and legumes. Weed Research 33(1): 69-78. Ruakura Agric. Centre, Ministry Agric. Fisheries, Private Bag, Hamilton, New Zealand

Watanabe, N. (1993). Photosynthetic variation in mesophyll protoplasts and seedling leaves in Lolium species. Photosynthetica Prague 29(1): 151-155. Faculty Agriculture, Gifu Univ., Gifu 501-11, Japan

Wedderburn, M. E., W. J. Pengelly, et al. (1993). Comparison of improved "low-fertility" grass species and ryegrass with wild populations for performance under varying levels of nitrogen and moisture in a simulated hill soil profile. New Zealand Journal of Agricultural Research 36(1): 117-121. AgRes., Whatawhata Res. Centre, Private Bag 3089, Hamilton, N.Z

Williams, A. G. and S. E. Withers (1993). Changes in the rumen microbial population and its activities during the refaunation period after the reintroduction of ciliate protozoa into the rumen of defaunated sheep. Canadian Journal of Microbiology 39(1): 61-69. {a} Hannah Res. Inst., Ayr KA6 5HL, Scotland, United Kingdom

Williams, E. D. and M. J. Hayes (1993). Growth and colonization of a range of white clover cultivars strip-seeded into an upland perennial ryegrass sward. Grass and Forage Science 48(2): 136-145. {a} AFRC Inst. Grassland Environ. Res., Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Willner, E. (1993). Documentation status of genetic resources in the gene bank of the Malchow-Poel branch. Schriftenreihe des Bundesministers fuer Ernaehrung Landwirtschaft und Forsten Reihe A Angewandte Wissenschaft(422): 124-125. Inst. Pflanzengenet. Kulturpflanzenforschung -Genbank-, Aussenstelle Malchow, 23999 Malchow/Poel, Germany

Wilman, D. and P. G. H. Acuna (1993). Effects of cutting height on the growth of leaves and stolons in perennial ryegrass-white clover swards. Journal of Agricultural Science 121(1): 39-46. {a} Dep. Agric. Sci., Univ. College Wales, Aberystwyth, Dyfed SY23 3DD, UK

Wilman, D. and J. A. Riley (1993). Potential nutritive value of a wide range of grassland species. Journal of Agricultural Science 120(1): 43-49. {a} Dep. Agric. Sci., Univ. Coll. Wales, Aberystwyth, Dyfed SY23 3DD, UK

Wilman, D. and S. P. Williams (1993). A comparison of grass/white clover and grass silages offered to dairy cows as the sole feed. Grass and Forage Science 48(3): 231-237. {a} Dep. Agric. Sci., University College Wales, Aberystwyth, Dyfed SY23 3DD, UK

Wollenweber, B. and J. A. Raven (1993). Implications of N acquisition from atmospheric NH-3 from acid-base and cation-anion balance of Lolium perenne. Physiologia Plantarum 89(3): 519-523. {a} Dep. Agric. Sci., Royal Vet. and Agric. Univ., Thorvaldsensvej 40, DK-1872 Frederiksberg C, Copenhagen, Denmark

Wollenweber, B. and J. A. Raven (1993). Nitrogen acquisition from atmospheric ammonia by Lolium perenne: Utilization of ammonia and implications for acid-base balance. Botanica Acta 106(1): 42-51. {a} Soil, Water Plant Nutr., Dep. Agric. Sci., Royal Veterinary Agric. Univ., Thorvaldsensvej 40, DK-1871 Frederiksberg C, Copenhagen, Denmark

Wu, H. B., G. L. Feist, et al. (1993). A modified Escherichia coli chaperonin (groEL) polypeptide synthesized in tobacco and targeted to the chloroplasts. Plant Molecular Biology 22(6): 1087-1100. {a} Plant Biotechnol. Inst., National Res. Council Canada, 110 Gymnasium Place, Saskatoon, Saskatchewan, Canada S7N 0W9

Yamashita, M., J. Abe, et al. (1993). Variation and differentiation of allelic frequencies of isozyme loci in perennial ryegrass (Lolium perenne L.). Journal of Japanese Society of Grassland Science 38(4): 459-468. Fac. Agric., Hokkaido Univ., Sapporo, Hokkaido 060, Japan

Zaghmout, O. M. F. and N. L. Trolinder (1993). Factors affecting transient gene expression in protoplasts isolated from very slowly growing embryogenic callus cultures of wheat (Triticum aestivum L.). Theoretical and Applied Genetics 86(6): 721-730. {a} USDA-ARS, P.O. Box 215, Route 3, Lubbock, TX 79401, USA

Zebarth, B. J., S. Freyman, et al. (1993). Effect of ground covers and tillage between raspberry rows on selected soil physical and chemical parameters and crop response. Canadian Journal of Soil Science 73(4): 481-488. Agric. Can., Res. Stn., Agassiz, BC VOM 1AO, Canada

Afzal, M. and W. A. Adams (1992). Heterogeneity of soil mineral nitrogen in pasture grazed by cattle. Soil Science Society of America Journal 56(4): 1160-1166. {a} Soil Sci. Unit, Dep. Biochem., University Coll. Wales, Aberystwyth SY 23 3DE, Wales, UK

Allan, B. E., K. F. O'Connor, et al. (1992). Grazing management of oversown tussock country: 2. Effects of botanical composition. New Zealand Journal Of Agricultural Research 35(1): 7-19.

Ayalsew, Z. A., B. A. McKenzie, et al. (1992). Establishment of perennial grasses overdrilled into a lucerne sward. New Zealand Journal of Agricultural Research 35(3): 237-243. Plant Sci. Dep., Lincoln Univ., Canterbury, New Zealand

Baca, M. T., E. Benitez, et al. (1992). Effect of the addition of sugarcane bagasse composts on micronutrient assimilability in ryegrass. Waste Management & Research 10(1): 13-19.

Bachmann, G. and H. Kinzel (1992). Physiological and ecological aspects of the interactions between plant roots and rhizosphere soil. Soil Biology And Biochemistry 24(6): 543-552.

Baert, J., D. Reheul, et al. (1992). A rapid method by flow cytometry for estimating persistence of tetraploid perennial ryegrass in pasture mixtures with diploid perennial ryegrass. Biologia Plantarum Prague 34(5-6): 381-385. Rijksstation Plantenverdeling Burg, Van Gansberghelaan 109, Merelbeke-Lemberg, B-9820, Belgium

Bailey, J. S. (1992). Effects of gypsum on the uptake, assimilation and cycling of nitrogen-15 labelled ammonium and nitrate-nitrogen by perennial ryegrass. Plant And Soil 143(1): 19-31.

Baraniuk, J. N., M. Bolick, et al. (1992). Quantification of pollen solute release using pollen grain column chromatography. Allergy 47(4 Part 2): 411-417.

Barta, I. C. and F. Dutka (1992). Investigation of thiocarbamate-acetochlor interaction in the presence of MG-191 safener in corn and other plants. Cereal Research Communications 20(1-2): 139-143.

Baskar, S., P. Parronchi, et al. (1992). Human T cell responses to purified pollen allergens of the grass, Lolium perenne: Analysis of relationship between structural homology and T cell recognition. Journal Of Immunology 148(8): 2378-2383.

Benedetti, A., A. Figliolia, et al. (1992). Fertilization with NPK and humate NPK: Plant yield and nutrient dynamics. Suelo Y Planta 2(2): 203-214.

Bigot, J. and J. Boucaud (1992). Regrowth of ryegrass: Enzymatic activities related to amino acid metabolism. Phytochemistry Oxford 31(12): 4071-4074. {a} Lab. de Physiol. et Biochem. Vegetales, Inst. de Recherches en Biol. Appliquee, Univ. de Caen, 14032 Caen Cedex, France

Bowman, D. C. and J. L. Paul (1992). Foliar absorption of urea, ammonium, and nitrate by perennial ryegrass turf. Journal Of The American Society For Horticultural Science 117(1): 75-79.

Chen, W. P., Wu, et al. (1992). Callus formation from somatic hybridization of wheat (Triticum aestivum L.) and ryegrass (Lolium perenne L.) by electrofusion. Acta Botanica Sinica 34(4): 284-290. {a} Nanjing Agric. University, Nanjing 210014

Christie, P. and D. J. Kilpatrick (1992). Vesicular-arbuscular mycorrhiza infection in cut grassland following long-term slurry application. Soil Biology And Biochemistry 24(4): 325-330.

Clarkson, D. T., L. H. P. Jones, et al. (1992). Absorption of nitrate and ammonium ions by Lolium perenne from flowing solution cultures at low root temperatures. Plant Cell And Environment 15(1): 99-106.

Clement, S. L., D. G. Lestr, et al. (1992). Behavior and performance of Diuraphis noxia (Homoptera: Aphididae) on fungal endophyte-infected and uninfected perennial ryegrass. Journal Of Economic Entomology 85(2): 583-588.

Corak, S. J., M. S. Smith, et al. (1992). Fate of nitrogen-15 labeled legume and ammonium nitrogen sources in a soil-plant system. Communications In Soil Science And Plant Analysis 23(5-6): 631-642.

Creemers, M. J., R. D. Hall, et al. (1992). Asymmetric protoplast fusion aimed at intraspecific transfer of cytoplasmic male sterility (CMS) in Lolium perenne L. Theoretical And Applied Genetics 84(5-6): 763-770.

Creemers, M. J., J. P. M. Loeffen, et al. (1992). The effect of genotype, cold storage and ploidy level on the morphogenic response of perennial ryegrass (Lolium perenne L.) suspension cultures. Plant Science 83(1): 87-94.

Creemers, M. J., E. F. A. Van, et al. (1992). Culture optimization for perennial ryegrass protoplasts. Journal Of Plant Physiology 139(3): 303-308.

Cruickshank, G. J., D. P. Poppi, et al. (1992). The intake, digestion and protein degradation of grazed herbage by early-weaned lambs. British Journal of Nutrition 68(2): 349-364. {a} Dep. Agric., Univ. Queensl., Queensl. 4072, Australia

Culleton, N. and T. Cullen (1992). Trends in herbage seed use in Ireland. Plant Varieties & Seeds 5(2): 63-69.

Culleton, N., W. E. Murphy, et al. (1992). A note on the effects of date of autumn sowing on establishment of Lolium perenne L. Irish Journal of Agricultural and Food Research 31(2): 185-187. {a} Teagasc, Johnstown Castle Res. Cent., Wexford

Cuttle, S. P., M. Hallard, et al. (1992). Nitrate leaching from sheep-grazed grass/clover and fertilized grass pastures. Journal of Agricultural Science 119(3): 335-343. {a} AFRC Inst. Grassl. Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Danneberger, T. K., M. B. J. McDonald, et al. (1992). Rate of germination and seedling growth of perennial ryegrass seed following osmoconditioning. Hortscience 27(1): 28-30.

Davies, D. A., M. Fothergill, et al. (1992). Assessment of contrasting perennial ryegrasses, with and without clover, under continuous sheep stocking in the uplands: 4. Animal performance in years, 4-6. Grass and Forage Science 47(3): 249-258. {a} IGER, Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Deenen, P. J. A. G. and N. Middelkoop (1992). Effects of cattle dung and urine on nitrogen uptake and yield of perennial ryegrass. Netherlands Journal of Agricultural Science 40(4): 469-482. Dep. Agronomy, Wageningen Agric. University, Haarweg 333, NL 6709 RZ Wageningen, Netherlands Antilles

Dernoeden, P. H., M. J. Mahoney, et al. (1992). Smooth crabgrass control in perennial ryegrass with repeated low fenoxaprop application rates. Hortscience 27(9): 1001-1003. {a} Dep. of Agronomy, Uhiv. of Maryland, College Park, Md. 20742

Devitt, D. A., R. L. Morris, et al. (1992). Evapotranspiration, crop coefficients, and leaching fractions of irrigated desert turfgrass systems. Agronomy Journal 84(4): 717-723.

Di, M. M. E., P. H. Mortimer, et al. (1992). Lolitrem B concentrations, counts of Acremonium lolii hyphae, and the incidence of ryegrass staggers in lambs on plots of Acremonium lolii infected perennial ryegrass. New Zealand Journal Of Agricultural Research 35(2): 211-217.

Dkhar, M. S. and R. R. Mishra (1992). Change in chemistry during decomposition of maize residues. Proceedings of the National Academy of Sciences India Section B Biological Sciences 62(3): 437-440. Dep. Botany, North-Eastern Hill Univ., Shillong-793 014, India

Douglas, J. T., A. J. Koppi, et al. (1992). Changes in soil structure induced by wheel traffic and growth of perennial grass. Soil & Tillage Research 23(1-2): 61-72.

Eagles, C. F. and J. Williams (1992). Hardening and dehardening of Lolium perenne in response to fluctuating temperatures. Annals of Botany London 70(4): 333-338. AFRC Inst. Grassland Environ. Res., Welsh Plant Breeding Stn., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

Elmore, C. L. and D. E. Bayer (1992). Mitotic and structural effects of nitralin and butralin on ryegrass (Lolium perenne L.) root meristems. Weed Research 32(2): 77-86.

Evans, D. R., T. A. Williams, et al. (1992). Residual nitrogen effect of grazed white clover (Trifolium repens)/ryegrass (Lolium perenne) swards on subsequent yields of spring barley. Journal Of Agricultural Science 118(2): 175-178.

Fernandez, C. E., E. O. Bandele, et al. (1992). Rye grass cross-reacting allergens in leaves from seven different grass species. Grana 31(2): 157-159.

Gahoonia, T. S., N. Claasen, et al. (1992). Mobilization of phosphate in different soils by ryegrass supplied with ammonium or nitrate. Plant And Soil 140(2): 241-248.

Gahoonia, T. S., N. Claassen, et al. (1992). Mobilization of residual phosphate of different phosphate fertilizers in relation to pH in the rhizosphere of ryegrass. Fertilizer Research 33(3): 229-237. {a} Royal Vet. Agric. Univ., Dep. Agric. Sci., Thorwaldsensvej 40, 1871 Frederiksberg C, Denmark

Garcia, C., T. Hernandez, et al. (1992). Phytotoxicity due to the agricultural use of urban wastes: Germination experiments. Journal Of The Science Of Food And Agriculture 59(3): 313-319.

Gibbs, R. J. and J. B. Reid (1992). Comparison between net and gross root production by winter wheat and by perennial ryegrass. New Zealand Journal of Crop and Horticultural Science 20(4): 483-487. {a} Dep. Soil Sci., Lincoln Univ., Canterbury, NZ

Giblin, D. R. M., J. L. Cisar, et al. (1992). Host status of different bermudagrasses (Cynodon spp.) for the sting nematode, Belonolaimus longicaudatus. Journal of Nematology 24(4 Suppl.): 749-756. Fort Lauderdale Res. Educ. Cent., Inst. Food Agric. Sci., Univ. Fla., 3205 College Ave., Ft. Lauderdale, Fla. 33314

Griffith, S. M. and G. M. Banowetz (1992). Differentiation of Lolium perenne L. and Lolium multiflorum Lam. seed by two esterase isoforms. Seed Science and Technology 20(3): 343-348. {a} USDA-ARS, National Forage Seed Production Res. Cent. Corvallis, Oregon 97331, USA

Griffiths, B. S., R. Welschen, et al. (1992). The effect of nitrate-nitrogen supply on bacteria and bacterial-feeding fauna in the rhizosphere of different grass species. Oecologia 91(2): 253-259.

Guy, P. L. (1992). Incidence of Acremonium lolli and lack of correlation with barley yellow dwarf viruses in Tasmanian perennial ryegrass pastures. Plant Pathology 41(1): 29-34.

Gworek, B. (1992). Lead inactivation in soils by zeolites. Plant And Soil 143(1): 71-74.

Henry, M., R. I. B. Francki, et al. (1992). Occurrence of barley yellow dwarf virus in cereals and grasses of the low-rainfall wheatbelt of South Australia. Plant Pathology Oxford 41(6): 713-721. Dep. Crop Protection, Univ. Adelaide, Waite Agric. Res. Inst., Glen Osmond, SA 5064, Australia

Humphreys, M. O. (1992). Association of agronomic traits with isozyme loci in perennial ryegrass (Lolium perenne L.). Euphytica 59(2-3): 141-150.

Ishizaka, J., H. Fukushima, et al. (1992). Phytoplankton pigment distributions in regional upwelling around the Izu Peninsula detected by Coastal Zone Color Scanner on May 1982. Journal of Oceanography 48(3): 305-327. {a} National Inst. Resources Environment, Tsukuba 305, Japan

Jeangros, B. and J. Nosberger (1992). Comparison of the growth response of Rumex obtusifolius L. and Lolium perenne L. to photon flux density. Weed Research 32(4): 311-316.

Jensen, E. S. (1992). The release and fate of nitrogen from catch-crop materials decomposing under field conditions. Journal Of Soil Science 43(2): 335-345.

Joshi, H. (1992). Growth performance and nutrient value of Lolium perenne L. as affected by water stress and clipping treatments. Acta Botanica Indica 20(2): 259-264. Dep. Botany, Kumaon Univ., Almora Campur, Almora 263 002

Kardassakis, D. G., R. C. Grekin, et al. (1992). Laser skin testing. Annals Of Allergy 68(3): 279-285.

Kellogg, E. A. (1992). Tools for studying the chloroplast genome in the Triticeae (Gramineae): An EcoRI map, a diagnostic deletion, and support for Bromus as an outgroup. American Journal Of Botany 79(2): 186-197.

Kemp, J. S., E. Paterson, et al. (1992). Leaching of genetically modified Pseudomonas fluorescens through organic soils: Influence of temperature, soil pH, and roots. Biology And Fertility Of Soils 13(4): 218-224.

Klapheck, S., B. Chrost, et al. (1992). Gamma-Glutamylcysteinylserine: A new homologue of glutathione in plants of the family Poaceae. Botanica Acta 105(3): 174-179.

Klessa, D. A. and B. A. Desira (1992). The adhesion to leaf surfaces of heavy metals from sewage sludge applied to grassland. Soil Use And Management 8(3): 115-121.

Klysner, S., K. G. Welinder, et al. (1992). Group V allergens in grass pollens: IV. Similarities in amino acid compositions and NH-2-terminal sequences of the Group V allergens from Lolium perenne, Poa pratensis and Dactylis glomerata. Clinical And Experimental Allergy 22(4): 491-497.

Landschoot, P. J. and B. F. Hoyland (1992). Gray leaf spot of perennial ryegrass turf in Pennsylvania. Plant Disease 76(12): 1280-1282. Dep. Agron., Pa. State Univ., University Park, Pa. 16802

Lewis, G. C. (1992). Effect of ryegrass endophyte in mixed swards of perennial ryegrass and white clover under two levels of irrigation and pesticide treatment. Grass and Forage Science 47(3): 302-305. AFRC Inst. Grassland Environ. Res., North Wyke, Okehampton, Devon EX20 2SB, UK

Lewis, G. C. (1992). Foliar fungal diseases of perennial ryegrass at 16 sites in England and Wales. Crop Protection 11(1): 35-38.

Loos, B. P. and C. E. Jarvis (1992). The typification of Lolium perenne L. and Lolium temulentum L. (Poaceae). Botanical Journal Of The Linnean Society 108(4): 399-408.

Luescher, A., J. Connolly, et al. (1992). Neighbour specificity between Lolium perenne and Trifolium repens from a natural pasture. Oecologia Heidelberg 91(3): 404-409. {a} Eidgenoessiche Technische Hochschule, Inst. Pflanzenwissenschaften, ETH-Zentrum, 8092 Zurich, Switzerland

Lush, W. M. and M. E. Rogers (1992). Cutting height and the biomass and tiller density of Lolium perenne amenity turfs. Journal of Applied Ecology 29(3): 611-618. {a} Bot. Sch., Univ. Melbourne, Parkville, Victoria 3052, Australia

Macklon, A. E. S. and A. Sim (1992). Modifying effects of a non-toxic level of aluminium on phosphate fluxes and compartmentation in root cortex cells of intact ryegrass seedlings. Journal of Experimental Botany 43(256): 1483-1490. {a} Plants Div., Macaulay Land Use Research Inst., Craigiebuckler, Aberdeen AB9 2QJ, Scotland, UK

Macklon, A. E. S. and A. Sim (1992). Modifying effects of non-toxic levels of aluminium on the uptake and transport of phosphate in ryegrass. Journal Of Experimental Botany 43(252): 915-923.

Matsumoto, N. and A. Tajimi (1992). Biological control of Typhula ishikariensis on perennial ryegrass. Annals of the Phytopathological Society of Japan 58(5): 741-751. {a} Hokkaido National Agric. Experiment Station, 1 Hitsujigaoka, Toyohira-ku, Sapporo 062, Japan

McGrath, D. (1992). A note on the effects of diesel oil spillage on grass growth. Irish Journal of Agricultural and Food Research 31(1): 77-80. Teagasc, Johnstown Castle Res. Centre, Wexford

Mehanni, A. H. and D. W. West (1992). Effect of nitrogen fertiliser on yield of perennial pastures irrigated with saline water. Australian Journal of Experimental Agriculture 32(8): 1087-1093. Dep. Agric., Inst. Sustainable Agric., Tatura, Victoria 3616, Australia

Mitchell, G. J., S. R. Chinner, et al. (1992). Tolerance of four pasture legumes and a perennial ryegrass to pre-sowing applications of metsulfuron methyl on acid soil. Plant Protection Quarterly 7(3): 121-124. South Aust. Dep. Agric., Flaxley Res. Cent., P.O. Box 1571, Flaxley, SA 5153, Australia

Mortensen, L. M. (1992). Effects of ozone on growth of seven grass and one clover species. Acta Agriculturae Scandinavica Section B Soil and Plant Science 42(4): 235-239. Saerheim Res. Stn., N-4062 Klepp Stasjon, Norway

Morton, J. D., G. R. Bolton, et al. (1992). The comparative performance of Holcus lanatus and Lolium perenne under sheep grazing in the Scottish uplands. Grass And Forage Science 47(2): 143-152.

Munro, J. M. M., D. A. Davies, et al. (1992). Animal production evaluation of herbage varieties: 1. Comparison of aurora with Frances, Talbot and Melle perennial ryegrasses when grown alone and with clover. Grass and Forage Science 47(3): 259-273. {a} IGER, Bronydd Mawr Res. Centre, Trecastle, Brecon, Powys LD3 8RD, UK

Murphy, T. R. and B. J. Johnson (1992). Tolerance of putting green turfgrasses to simazine in irrigation water. Weed Technology 6(2): 328-332.

Murray, F. R., G. C. M. Latch, et al. (1992). Surrogate transformation of perennial ryegrass, Lolium perenne, using genetically modified Acremonium endophyte. Molecular & General Genetics 233(1-2): 1-9.

Nguyen, M. L. and K. M. Goh (1992). Nutrient cycling and losses based on a mass-balance model in grazed pastures receiving long-term superphosphate applications in New Zealand: 2. Sulphur. Journal Of Agricultural Science 119(1): 107-122.

Nguyen, M. L. and K. M. Goh (1992). Nutrient cycling and losses based on a mass-balance model in grazed pastures receiving long-term superphosphate applications in New Zealand: 1. Phosphorus. Journal Of Agricultural Science 119(1): 89-106.

Nijs, I., I. Impens, et al. (1992). Diurnal changes in the response of canopy photosynthetic rate to elevated carbon dioxide in a coupled temperature-light environment. Photosynthesis Research 32(2): 121-130.

Nordestagaard, A. (1992). Split nitrogen application in perennial rye grass (Lolium perenne L.) for seed production. Tidsskrift for Planteavl 96(2): 163-168. Statens Planteavlsforsog, Landbrugscentret, Afdeling Industriplanter Froavl, Ledreborg Alle 100, 4000 Roskilde

Nordestgaard, A. (1992). Growth regulation in autumn and spring with Cycocel extra in seed production of red fescue, Poa pratensis and perennial ryegrass. Tidsskrift for Planteavl 96(5): 469-472. Statens Planteavlsfors., Landbrugscent., Afd. Industriplanter Froavl, 4000 Roskilde, Denmark

Nordestgaard, A. and B. Boelt (1992). Competition between covercrop and undersowing of grasses for seed. Tidsskrift for Planteavl 96(5): 461-468. Statens Planteavlsfors., Landbrugscent., Afd. Industriplanter Froavl, 4000 Roskilde, Denmark

O, K. P. (1992). The effects of ensiling sugarbeet pulp with grass on silage composition, effluent production and animal performance. Irish Journal of Agricultural and Food Research 31(2): 115-128. Teagasc, Grange Res. Cent., Dunsany Co. Meath

Oliveira, J. A. (1992). Breeding two base populations of perennial ryegrass. Euphytica 63(3): 257-263. C.I.A. Mabegondo, Apdo. 10, 15080 La Coruna, Spain

Oliveira, J. A. and G. Charmet (1992). Genotype by environment interaction in Lolium perenne: Grouping wild populations by cluster analysis. Investigacion Agraria Produccion y Proteccion Vegetales 7(2): 117-128. {a} Cent. Invest. Agrarias de Mabegondo, Apdo 10, La Coruna, Espana

Otabbong, E. and J. Persson (1992). Relative agronomic merit of fused calcium phosphate: II. Dry matter production and phosphorus yields of ryegrass (Lolium perenne L.) and barley (Hordeum vulgare L.) in pot experiments. Fertilizer Research 32(3): 269-277. Dep. Soil Sci., Swed. Univ. Agric. Sci., Box 7014, S-750 07 Uppsala, Sweden

Ourcival, J. M., M. Methy, et al. (1992). Determination by chlorophyll fluorescence of the genotypic variability of response to water stress in white clover (Trifolium repens) and rye grass (Lolium perenne). Canadian Journal of Botany 70(8): 1556-1562. {a} Centre Ecologie Fonctionnelle Evolutive, B.P. 5051, 34 033 Montpellier Cedex, France

Ourry, A., S. Mesle, et al. (1992). Effects of osmotic stress (sodium chloride and polyethylene glycol) on nitrate uptake, translocation, storage and reduction in ryegrass (Lolium perenne L.). New Phytologist 120(2): 275-280.

Pacini, E., P. E. Taylor, et al. (1992). Development of plastids in pollen and tapetum of rye-grass, Lolium perenne L. Annals Of Botany 70(2): 179-188.

Panetta, F. D. and D. A. Wardle (1992). Gap size and regeneration in a New Zealand dairy pasture. Australian Journal Of Ecology 17(2): 169-175.

Parronchi, P., C. M. De, et al. (1992). IL-4 and IFN (alpha and gamma) exert opposite regulatory effects on the development of cytolytic potential by Th1 or Th2 human T cell clones. Journal of Immunology 149(9): 2977-2983. Istituto Clinica Med. 3, Policlinico Careggi, 50134 Firenze, Italy

Petrova, R. (1992). Results of a pot experiment with fertilizing the rye-grass Lolium perenne L. grown on substrata of phosphatic slag and pyrite cinder. Nauka Za Gorata 29(2): 49-55.

Pfosser, M., M. Mengl, et al. (1992). Time course of polyamine levels during starvation of Medicago varia cells and its correlation with cell cycle data. Journal of Plant Physiology 140(3): 334-338. Bot. Inst., Univ. Bodenkultur, Gregor Mendel Str., 33, A-1180 Wien, Austria

Pilbeam, C. J. (1992). Effect of nitrogen supply on the growth and senescence of leaves of Lolium perenne with contrasting rates of leaf respiration. Annals of Botany London 70(4): 365-370. Dep. Soil Sci., Univ. Reading, London Rd., Reading RG1 5AQ, UK

Pilbeam, C. J. and M. J. Robson (1992). Response of populations of Lolium perenne cv. S 23 with contrasting rates of dark respiration to nitrogen supply and defoliation regime: 2. Grown as mixtures. Annals Of Botany 69(1): 79-86.

Pilbeam, C. J. and M. J. Robson (1992). Response of populations of Lolium perenne cv. S 23 with contrasting rates of dark respiration to nitrogen supply and defoliation regime: 1. Grown as monocultures. Annals Of Botany 69(1): 69-78.

Pires, A. L., J. L. Ahlrichs, et al. (1992). Response of eleven forage species to treatment of acid soil with calcitic and dolomitic lime. Communications In Soil Science And Plant Analysis 23(5-6): 541-558.

Plummer, R. M., R. L. Hall, et al. (1992). Effect of leaf age and nitrogen fertilisation on sporulation of crown rust (Puccinia coronata var. lolii) on perennial ryegrass (Lolium perenne L.). Annals of Applied Biology 121(1): 51-56. {a} Dep. Eng. Sci., Univ. Oxford, Parks Road, Oxford OX1 3PJ, UK

Potter, D. A., C. G. Patterson, et al. (1992). Influence of turfgrass species and tall fescue endophyte on feeding ecology of Japanese beetle and southern masked chafer grubs (Coleoptera: Scarabaeidae). Journal Of Economic Entomology 85(3): 900-909.

Prestidge, R. A., E. R. Thom, et al. (1992). Influence of Acremonium lolii infection in perennial ryegrass on germination, emergence, survival, and growth of white clover. New Zealand Journal Of Agricultural Research 35(2): 225-234.

Prud, h. M. P., B. Gonzalez, et al. (1992). Carbohydrate content, fructan and sucrose enzyme activities in roots, stubble and leaves of ryegrass (Lolium perenne L.) as affected by source/sink modification after cutting. Journal of Plant Physiology 140(3): 282-291. Lab. Physiol. Biochim. Veg., I.R.B.A., Univ., 14032 Caen Cedex, France

Raskina, O. M. and A. V. Rodionov (1992). Cold induced G/R-like banding of plant mitotic chromosomes Festuca pratensis Huds. and Lolium perenne L. Tsitologiya 34(10): 59-64. {a} Bot. Inst., Acad. Sci. Russ., St. Petersburg, Russia

Ravel, C., G. Charmet, et al. (1992). A database for a more efficient perennial ryegrass breeding programme. Euphytica 61(2): 145-151. INRA, Station d'Amelioration Plantes, 63039 Clermont-Ferrand, France

Roberts, A. M., R. R. Van, et al. (1992). Recombinant pollen allergens from Dactylis glomerata: Preliminary evidence that human IgE cross-reactivity between Dac g II and Lol p I/II is increased following grass pollen immunotherapy. Immunology 76(3): 389-396.

Rouwendal, G. J. A., M. J. Creemers, et al. (1992). Molecular aspects of cytoplasmic male sterility in perennial ryegrass (Lolium perenne L.): mtDNA and RNA differences between plants with male-sterile and fertile cytoplasm and restriction mapping of their atp6 and coxI homologous regions. Theoretical And Applied Genetics 83(3): 330-336.

Rowarth, J. S. and R. W. Tillman (1992). A glasshouse evaluation of plant availability of soil phosphate fractions. New Zealand Journal of Agricultural Research 35(3): 329-336. {a} N. Z. Pastoral Agric. Res. Inst. Ltd., P.O. Box 60, New Zealand

Runeckles, V. C. and M. Vaartnou (1992). Observations on the in situ detection of free radicals in leaves using electron paramagnetic resonance spectrometry. Canadian Journal Of Botany 70(1): 192-199.

Ryle, G. J. A., C. E. Powell, et al. (1992). Effect of elevated carbon dioxide on the photosynthesis, respiration and growth of perennial ryegrass. Journal Of Experimental Botany 43(251): 811-818.

Ryle, G. J. A. and J. Stanley (1992). Effect of elevated carbon dioxide on stomatal size and distribution in perennial ryegrass. Annals Of Botany 69(6): 563-565.

Saari, L. L., J. C. Cotterman, et al. (1992). Sulfonylurea herbicide resistance in common chickweed, perennial ryegrass, and Russian thistle. Pesticide Biochemistry And Physiology 42(2): 110-118.

Salt, C. A., R. W. Mayes, et al. (1992). Effects of season, grazing intensity and diet composition on the radiocaesium intake by sheep on re-seeded hill pasture. Journal Of Applied Ecology 29(2): 378-387.

Schobert, C. and E. Komor (1992). Transport of nitrate and ammonium into the phloem and the xylem of Ricinus communis seedlings. Journal of Plant Physiology 140(3): 306-309. Pflanzenphysiol., Univ. Bayreuth, Postfach 10 12 51, W-8580 Bayreuth, Germany

Seager, N. G., P. D. Kemp, et al. (1992). Effect of root and shoot competition from established hill-country pasture on perennial ryegrass. New Zealand Journal of Agricultural Research 35(3): 359-363. Dep. Plant Sci., Massey Univ., Palmerston North, N.Z

Silva, O. and M. Teresa (1992). Effects of mollusc grazing on the development of grassland species. Journal Of Vegetation Science 3(2): 267-270.

Silvertown, J., S. Holtier, et al. (1992). Cellular automaton models of interspecific competition for space: The effect of pattern on process. Journal of Ecology 80(3): 527-533. {a} Biology Dep., Open Univ., Walton Hall, Milton Keynes MK7 6AA, UK

Sun, D. (1992). Trampling resistance, recovery and growth rate of eight plant species. Agriculture Ecosystems & Environment 38(4): 265-273.

Swift, G., M. W. Morrison, et al. (1992). Comparison of white clover varieties under cutting and grazing. Grass And Forage Science 47(1): 8-13.

Takahashi, Y., Y. Fujii, et al. (1992). Studies on allelopathic interactions among some grassland species: III. Isolation and identification of phenolic compounds in the shoot of Lolium perenne L. Journal of Japanese Society of Grassland Science 38(2): 226-233. {a} Chugoku Natl. Agric. Exp. Station, Oda, Shimane 694, Japan

Terrill, T. H., G. B. Douglas, et al. (1992). Effect of condensed tannins upon body growth, wool growth and rumen metabolism in sheep grazing sulla (Hedysarum coronarium) and perennial pasture. Journal of Agricultural Science 119(2): 265-273. {a} Massy Univ., Palmerston North, New Zealand

Thiago, L. R. L., M. Gill, et al. (1992). Studies of method of conserving grass herbage and frequency of feeding in cattle: 1. Voluntary feed intake digestion and rate of passage. British Journal Of Nutrition 67(3): 305-318.

Thiess, H. and V. B. W. Opitz (1992). Nitrogen-utilization of different fodder grasses. Wirtschaftseigene Futter 38(1): 75-86.

Thompson, D. B. (1992). Consumption rates and the evolution of diet-induced plasticity in the head morphology of Melanoplus femurrubrum (Orthoptera: Acrididae). Oecologia 89(2): 204-213.

Thorogood, D. and M. D. Hayward (1992). Self-compatibility in Lolium temulentum L: Its genetic control and transfer into Lolium perenne L. and Lolium multiflorum Lam. Heredity 68(1): 71-78.

Tyson, K. C., E. A. Garwood, et al. (1992). Effects of field drainage on the growth of herbage and the liveweight gain of grazing beef cattle. Grass and Forage Science 47(3): 290-301. {a} AFRC Inst. Grassland Environ. Res., North Wyke, Okehampton, Devon EX20 2SB, UK

Valentine, S. C., G. Caon, et al. (1992). Suitability of a new cultivar of perennial ryegrass as a host for the Argentine stem weevil (Listronotus bonariensis (Kuschel)). Plant Protection Quarterly 7(1): 28-29.

Van, A. H. F., R. D. Hall, et al. (1992). High yields of cytoplasts from protoplasts of Lolium perenne and Beta vulgaris using gradient centrifugation. Plant Cell Tissue and Organ Culture 31(3): 223-232. {a} DLO-Centre Plant Breeding and Reprod. Res., P.O. Box 16, 6700 AA Wageningen, Netherlands Antilles

Van, E. P. J. and D. T. A. Van (1992). Fertilizer value of pig slurries processed by the Promest procedure. Fertilizer Research 32(1): 61-70.

Van, L. E. N. (1992). Tillering, leaf expansion and growth of plants of two cultivars of perennial ryegrass grown using hydroponics at two water potentials. Annals of Botany London 70(6): 511-518. Centre Plant Breeding Reproduction Res., P.O. Box 16, 6700 AA Wageningen, Netherlands Antilles

Van, L. E. N., A. H. C. M. Schapendonk, et al. (1992). Effects of nitrogen supply on tillering dynamics and regrowth of perennial ryegrass populations. Netherlands Journal of Agricultural Science 40(4): 381-400. DLO-Centre Plant Breeding Reproduction Res., P.O. Box 16, NL 6700 AA Wageningen, Netherlands Antilles

Van, R. R., V. Voitenko, et al. (1992). Profilin is a cross-reactive allergen in pollen and vegetable foods. International Archives Of Allergy And Immunology 98(2): 97-104.

Van, V. A. M., K. F. Krol, et al. (1992). Protein digestion and intestinal amino acids in dairy cows fed fresh Lolium perenne with different nitrogen contents. Journal Of Dairy Science 75(8): 2215-2225.

Varney, D. R., R. A. Pestidge, et al. (1992). Reproductive performance of CD-1 mice fed diets containing endophyte-infected perennial ryegrass seed through continuous breeding. New Zealand Journal Of Agricultural Research 35(2): 205-210.

Walter, I., R. Miralles, et al. (1992). Effect of sewage sludge compost on different crop yields and cadmium and nickel uptake. Suelo y Planta 2(4): 675-684. Dpto. de Produccion y Tecnologia de Alimentos. C.I.T.-I.N.I.A. Aptdo. d Correos, 8111. 28080 Madrid, Espana

Wardle, D. A., K. S. Nicholson, et al. (1992). Influence of pasture grass and legume swards on seedling emergence and growth of Carduus nutans L. and Cirsium vulgare L. Weed Research 32(2): 119-128.

Watanabe, K., J. Ogata, et al. (1992). Seasonal changes in productivity and quality of temperate grasses and the fluctuations with years: 1. Changes of daily dry matter production. Journal of Japanese Society of Grassland Science 37(4): 458-467. Fac. Agric., Iwate Univ., Ueda, Morioka 020, Japan

Welty, R. E. and R. E. Barker (1992). Evaluation of resistance to stem rust in perennial ryegrass grown in controlled and field conditions. Plant Disease 76(6): 637-641.

Wilkins, P. W. and D. Thorogood (1992). Breakdown of self-incompatibility in perennial ryegrass at high temperature and its uses in breeding. Euphytica 64(1-2): 65-69. AFRC Inst. Grassland Environ. Res., Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth SY23 3EB, Dyfed, UK

Williams, P. H. and R. J. Haynes (1992). Transformations and plant uptake of urine-sulphate in urine-affected areas of pasture soil. Plant and Soil 145(2): 167-175. MAF Technol., Canterbury Agric. Sci. Cent., P.O. Box 24, Lincoln, Canterbury, N.Z

Xu, W. W., D. A. Sleper, et al. (1992). Detection of RFLPs in perennial ryegrass, using heterologous probes from tall fescue. Crop Science 32(6): 1366-1370. {a} Dep. Agronomy, Univ. Missouri, Columbia, Mo. 65211

Yurukova, L. and I. Bondev (1992). Concentrations of macro and trace elements in tree species dominating in nine xerothermic oak coenoses in the region of Bourgas. Nauka za Gorata 27(2): 31-37. Inst. Bot. Bot. Gard., Sofia, Bulgaria

Zaghmout, O. M. F. and W. A. Torello (1992). Plant regeneration from callus and protoplasts of perennial ryegrass (Lolium perenne L.). Journal Of Plant Physiology 140(1): 101-105.

Zechmeister, H. (1992). Vegetation of flat roofs of high buildings from the turn of the century. Tuexenia(12): 307-314. Univ. Wien, Inst. f. Pflanzenphysiologie, Abt. f. Vegetationsoekologie, Abt. f. Vegetationsoekologie, Althanstrasse 14, A-1091 Wien, Germany

Andrews, M., B. A. McKenzie, et al. (1991). Nitrate effects on growth of the first four main stem leaves of a range of temperate cereals and pasture grasses. Annals Of Botany 67(5): 451-458.

Ansari, A. A., N. Shinomiya, et al. (1991). HLA-D gene studies in relation to immune responsiveness to a grass allergen Lol p III. Immunogenetics 33(1): 24-32.

Antuna, A., I. Nuno, et al. (1991). Effect of cutting interval and nitrogen fertilization on the yield and quality of perennial ryegrass and white clover pasture in the coastal plain of Asturias (northern Spain). Investigacion Agraria Produccion Y Proteccion Vegetales 6(1): 93-106.

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Balfourier, F. and G. Charmet (1991). Relationships between agronomic characters and ecogeographical factors in a collection of French ryegrass populations. Agronomie 11(8): 645-658.

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Couch, H. and B. D. Smith (1991). Synergistic and antagonistic interactions of fungicides against Pythium aphanidermatum on perennial ryegrass. Crop Protection 10(5): 386-390.

Culleton, N., V. McCarthy, et al. (1991). A note on the germinability and early seedling growth of Lolium perenne. Irish Journal Of Agricultural Research 30(2): 159-162.

Davies, D. A., M. Fothergill, et al. (1991). Assessment of contrasting perennial ryegrasses, with and without white clover, under continuous sheep stocking in the uplands: 3. Herbage production, quality and intake. Grass And Forage Science 46(1): 39-50.

Davis, M. R. and M. H. Lang (1991). Increased nutrient availability in topsoils under conifers in the South Island high country. New Zealand Journal of Forestry Science 21(2-3): 165-179. Forest Res. Inst., P.O. Box 31-011, Christchurch, New Zealand

Dormaar, J. F. and R. C. Foster (1991). Nascent aggregates in the rhizosphere of perennial ryegrass (Lolium perenne L.). Canadian Journal Of Soil Science 71(4): 465-474.

Eason, W. R., E. I. Newman, et al. (1991). Specificity of interplant cycling of phosphorus: The role of mycorrhizas. Plant And Soil 137(2): 267-274.

Edmeades, D. C., F. P. C. Blamey, et al. (1991). Effects of pH and aluminum on the growth of temperature pasture species: I. Temperate grasses and legumes supplied with inorganic nitrogen. Australian Journal Of Agricultural Research 42(3): 559-569.

Enache, A. J. and R. D. Ilnicki (1991). BAS 514 and dithiopyr for weed control in cool-season turfgrasses. Weed Technology 5(3): 616-621.

Fales, S. L., P. J. Bohn, et al. (1991). Modification of in vitro digestibility and cell-wall composition of cocksfoot, ryegrass and timothy by imazethapyr. Journal Of The Science Of Food And Agriculture 54(1): 71-78.

Frame, J. (1991). Herbage production and quality of a range of secondary grass species at five rates of fertilizer nitrogen application. Grass And Forage Science 46(2): 139-152.

Frame, J. and M. W. Morrison (1991). Herbage productivity of prairie grass, reed canary-grass and phalaris. Grass And Forage Science 46(4): 417-426.

Gaborjanyi, R. (1991). Agropyron mosaic virus and ryegrass mosaic virus: Two new cereal pathogens in Hungary. Novenytermeles 40(3): 219-226.

Galey, F. D., M. L. Tracy, et al. (1991). Staggers induced by consumption of perennial ryegrass in cattle and sheep from northern California (USA). Journal Of The American Veterinary Medical Association 199(4): 466-470.

Gang, Z. and P. Daniel (1991). Comparative investigations concerning the methodology of the determination of buffering capacity of forage grasses. Wirtschaftseigene Futter 37(1-2): 249-257.

Garcia, C., T. Hernandez, et al. (1991). Agronomic value of urban waste and the growth of ryegrass (Lolium perenne) in a calciorthid soil amended with this waste. Journal Of The Science Of Food And Agriculture 56(4): 457-468.

Gay, A. P. and C. F. Eagles (1991). Quantitative analysis of cold hardening and dehardening in Lolium. Annals Of Botany 67(4): 339-346.

Gibb, M. J. (1991). Differences in the vertical distribution of plant material within swards continuously stocked with cattle. Grass And Forage Science 46(3): 339-342.

Giblin, D. R. M., J. L. Cisar, et al. (1991). Management practices affecting phytoparasitic nematodes in Tifgreen bermudagrass. Nematropica 21(1): 59-70.

Gibson, C. C. and A. R. Watkinson (1991). Host selectivity and the mediation of competition by the root hemiparasite Rhinanthus minor. Oecologia 86(1): 81-87.

Gourley, C. J. P. and A. A. McGowan (1991). Assessing differences in pasture mass with an automated rising plate meter and a direct harvesting technique. Australian Journal Of Experimental Agriculture 31(3): 337-340.

Gower, D. A., M. Nyborg, et al. (1991). Nitrogen and sulfur dynamics in limed, elemental sulfur-polluted, forest soils. Soil Biology And Biochemistry 23(2): 145-150.

Gunn, R. G., W. F. Smith, et al. (1991). Net production of herbage from a continuously stocked Lolium perenne dominated sward in late autumn. Grass And Forage Science 46(4): 437-440.

Hassan, L., R. N. Jones, et al. (1991). Colchicine-induced heritable variation in cell size and chloroplast number in the leaf cells of inbred ryegrasses (Lolium perenne, Lolium multiflorum). Euphytica 52(1): 39-46.

Hatch, D. J., S. C. Jarvis, et al. (1991). An assessment of the contribution of net mineralization to nitrogen cycling in grass swards using a field incubation method. Plant And Soil 138(1): 23-32.

Hetrick, B. A. D., G. W. T. Wilson, et al. (1991). Root architecture of warm-season and cool-season grasses: Relationship to mycorrhizal dependence. Canadian Journal Of Botany 69(1): 112-118.

Huizing, H. J., D. M. W. Van, et al. (1991). Detection of lolines in endophyte-containing meadow fescue in The Netherlands and the effect of elevated temperature on induction of lolines in endophyte-infected perennial ryegrass. Grass And Forage Science 46(4): 441-446.

Hume, D. E. (1991). Effect of cutting on production and tillering in prairie grass (Bromus willdenowii Kunth) compared with two ryegrass (Lolium) species: 2. Reproductive plants. Annals Of Botany 68(1): 1-12.

Hume, D. E. (1991). Effect of cutting on production and tillering in prairie grass (Bromus willdenowii Kunth) compared with two ryegrass (Lolium spp): 1. Vegetative plants. Annals Of Botany 67(6): 533-542.

Hume, D. E. (1991). Leaf and tiller production of prairie grass (Bromus willdenowii Kunth) and two ryegrass (Lolium) species. Annals Of Botany 67(2): 111-122.

Humphreys, M. O. (1991). A genetic approach to the multivariate differentiation of perennial ryegrass (Lolium perenne L.) populations. Heredity 66(3): 437-444.

Humphreys, N. C. and S. J. Dalton (1991). A relationship between heading date and in vitro tillering propensity in perennial ryegrass (Lolium perenne L.). Euphytica 58(3): 253-257.

Jaindl, R. G., S. H. Sharrow, et al. (1991). Effect of winter grazing date on yield components of Lolium perenne (L.)-Trifolium repens (L.) hill pasture. Grass And Forage Science 46(4): 351-358.

Jarvis, S. C., D. J. Hatch, et al. (1991). Micrometeorological studies of ammonia emission from sheep grazed swards. Journal Of Agricultural Science 117(1): 101-110.

Jensen, E. S. (1991). Nitrogen accumulation and residual effects of nitrogen catch crops. Acta Agriculturae Scandinavica 41(4): 333-344.

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Kawanabe, S. (1991). The analysis and diagnosis of sown pasture vegetation: 2. Grouping and characterization the sown and weed species by means of principal component analysis. Asian Australasian Journal Of Animal Sciences 4(3): 245-250.

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Kowalenko, C. G. (1991). Fall vs. spring soil sampling for calibrating nutrient applications on individual fields. Journal Of Production Agriculture 4(3): 322-329.

Koziol, M. J. (1991). Effects of sulfur dioxide on the composition of ryegrass cell walls. Phytochemistry 30(7): 2155-2160.

Ledgard, S. F. (1991). Transfer of fixed nitrogen from white clover to associated grasses in swards grazed by dairy cows, estimated using nitrogen-15 methods. Plant And Soil 131(2): 215-224.

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Magcale, M. D. B. and R. D. B. Whalley (1991). Distribution of Microlaena stipoides and its association with introduced perennial grasses in a permanent pasture on the Northern Tablelands of New South Wales. Australian Journal Of Botany 39(3): 295-304.

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Marrs, R. H., A. J. Frost, et al. (1991). Effect of mecoprop drift on some plant species of conservation interest when grown in standardized mixtures in microcosms. Environmental Pollution 73(1): 25-42.

Marrs, R. H., M. W. Gough, et al. (1991). Soil chemistry and leaching losses of nutrients from semi-natural grassland and arable soils on three contrasting parent materials. Biological Conservation 57(3): 257-272.

Matthiesen, F. and H. Lowenstein (1991). Group V allergens in grass pollens: II. Investigation of group V allergens in pollens from 10 grasses. Clinical And Experimental Allergy 21(3): 309-320.

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