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Beres, I. and K. Sardi (2000). Interaction of nitrates and drought stress on the germination of weed species. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 139-142. {a} Georgikon Faculty of Agronomy, Veszprem University, H-8360, Keszthely, Hungary

Dunker, M. and H. Nordmeyer (2000). Reasons for the distribution of weed species on arable fields: Field and greenhouse experiments concerning the influence of soil properties. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 55-62. {a} Biologische Bundesanstalt fuer Land- und Forstwirtschaft, Institut fuer Unkrautforschung, Messeweg 11/12, D-38104, Braunschweig, Germany

Gehring, K. and G. Bauer (2000). Valuation of herbicide activity, yield increase, treatment cost and environmental effect of herbicides against cleavers (Galium aparine) in winter cereals. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 259-264. {a} Abteilung Pflanzenschutz, Bayerische Landesanstalt fuer Bodenkultur und Pflanzenbau, Menzinger Str. 54, 80638, Muenchen, Germany

Genot, B. and K. W. Massmann (2000). Centium 36 CS: A new clomazone based pre-emergence herbicide for the control of broad-leafed weeds in potatoes. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 539-544. {a} FMC Europe NV, Avenue Louise, 480 b9, B-1050, Brussels, Belgium

Gerber, M., W. Nuyken, et al. (2000). Influence of timing and conditions on Galium activity with Lotus(R) combinations in small grain cereals. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 517-523. {a} BASF Aktiengesellschaft, Agrarzentrum, D-67114, Limburgerhof, Germany

Goetz, R. and F. Ammer (2000). Results of Liberty application in transgenic winter rape in Thuringia. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 397-401. {a} Thueringer Landesanstalt fuer Landwirtschaft, D-07743, Jena, Germany

Gould, A. M. A. and D. L. Gorchov (2000). Effects of the exotic invasive shrub Lonicera maackii on the survival and fecundity of three species of native annuals. American Midland Naturalist. [print] July 144(1): 36-50. {a} Department of Botany, Miami University, Oxford, OH, 45056, USA

Grossmann, K. (2000). Cinidon-ethyl (Lotus(R)): Studies on the mode of action and selectivity and behaviour in combination with auxin herbicides. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 509-516. {a} BASF Agrarzentrum Limburgerhof, D-67114, Limburgerhof, Germany

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

Klem, K. and M. Vanova (2000). Asymmetric competition between wheat and weeds: A step to improve crop-weed interaction models. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 113-119. {a} Agricultural Research Institute Kromeriz, Ltd., Havlickova 2787, CZ-767 01, Kromeriz, Czech Republic

Luken, J. O. and M. Shea (2000). Repeated prescribed burning at Dinsmore Woods State Nature Preserve (Kentucky, USA): Responses of the understory community. Natural Areas Journal. April 20(2): 150-158. {a} Department of Biological Sciences, Northern Kentucky University, Highland Heights, KY, 41099, USA

Mittnacht, A. and A. Kemmer (2000). Control of black grass (Alopecurus myosuroides Huds.) and cleavers (Galium aparine) in winter cereals. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 439-446. {a} Regierungspraesidium Stuttgart, Pflanzenschutzdienst, Ruppmannstr. 21, D-70565, Stuttgart, Germany

Nordmeyer, H. and A. Haeusler (2000). Experiences on site specific weed control in agricultural practice. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 195-205. {a} Bundesforchungsanstalt fuer Landwirtschaft (FAL), Institut fuer Pflanzenbau und Gruenlandwirtschaft, Bundesallee 50, D-38116, Braunschweig, Germany

Raffel, H. and B. Meyer (2000). ZOOM: New examinations for weed control in cereals. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 693-699. {a} Novartis Agro GmbH, Liebigstrasse 51-53, D-60323, Frankfurt/Main, Germany

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Schneider, M. and M. Guehne (2000). CYD 34103: A new post emergence herbicide in fall and spring for control of broad leaf weeds in cereals. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz(17): 571-576. {a} Cyanamid Agrar GmbH and Co. KG, Zur Propstei, 55270, Schwabenheim, Germany

Storkey, J. and J. W. Cussans (2000). Relationship between temperature and the early growth of Triticum aestivum and three weed species. Weed Science. [print] July August 48(4): 467-473. {a} IACR Rothamsted, Harpenden, Hertfordshire, AL5 2JQ, UK

Tew, T. E., I. A. Todd, et al. (2000). Arable habitat use by wood mice (Apodemus sylvaticus). 2. Microhabitat. Journal of Zoology London. March 250(3): 305-311. {a} Wildlife Conservation Research Unit, Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS, UK

Cabanne, F., J. C. Gaudry, et al. (1999). Influence of alkyl oleates on efficacy of phenmedipham applied as an acetone:water solution on Galium aparine. Weed Research 39(1): 57-67. {a} Laboratoire de Phytopharmacie, INRA, BV 1540, 21034, Dijon cedex, France

Craemer, C., R. Sobhian, et al. (1999). A new species of Cecidophyes (Acari: Eriophyidae) from Galium aparine (Rubiaceae) with notes on its biology and potential as a biological control agent for Galium spurium. International Journal of Acarology. Dec. 25(4): 255-263. {a} Biosystematics Division: Arachnology, ARC-Plant Protection Research Institute, Pretoria, 0001, South Africa

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Mabuchi, T. and T. Ohtsuka (1999). Ecopart(R) flowable (pyraflufen-ethyl, ET-751) -A new selective post-emergence herbicide for cereals. Agrochemicals Japan. Dec. 75: 12-14.

Ominski, P. D., M. H. Entz, et al. (1999). Weed suppression by Medicago sativa in subsequent cereal crops: A comparative survey. Weed Science. May June 47(3): 282-290. {a} Department of Plant Science, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada

Puntieri, J. G. and P. Pysek (1999). Why the biomass of over-crowded populations of Galium aparine L. does not increase during density-dependent mortality? An experimental approach. Flora Jena. July 194(3): 297-307. {a} Departamento de Botanica, Unidad Postal Universidad, Universidad National del Comahue, 8400, Bariloche, Argentina

Seavers, G. P. and K. J. Wright (1999). Crop canopy development and structure influence weed suppression. Weed Research. Aug. 39(4): 319-328. {a} IACR-Long Ashton Research Station, Department of Agricultural Sciences, University of Bristol, Long Ashton, Bristol, BS41 9AF, UK

Steinmann, H. H. (1999). Weeds in Arable Farming Systems - examples from Galium aparine and Cirsium arvense. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz. Jan. 106(1): 21-32. {a} Research Center Agriculture and the Environment, University of Goettingen, Am Vogelsang 6, D-37075, Goettingen, Germany

Stevenson, F. C. and A. M. Johnston (1999). Annual broadleaf crop frequency and residual weed populations in Saskatchewan Parkland. Weed Science. March April 47(2): 208-214. {a} Agriculture and Agri-Food Canada Research Farm, Melfort, SK, S0E 1E0, Canada

Taylor, K. (1999). Galium aparine L. Journal of Ecology. Aug. 87(4): 713-730. {a} 1, Hollowrayne, Burton-in-Kendal, Carnforth, Lancashire, LA6 1NS, UK

Genot, B. and M. L. Hullebroeck (1998). Carfentrazone-ethyl + mecoprop-P (Platform S): A new herbicide for the control of cleavers and other broad-leaved weeds in wheat and barley. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 63(3a): 751-759. FMC Europe nv, Brussel, Belgium

Grossmann, K. and F. Scheltrup (1998). Studies on the mechanism of selectivity of the auxin herbicide quinmerac. Pesticide Science 52(2): 111-118. {a} BASF Agric. Res. Station, D-67114 Limburgerhof, Germany

Lepiece, D., A. Thompson, et al. (1998). Florasulam Primus, a new selective triazolopyrimidine sulfonanilide (ALS) herbicide to control broad-leaved weeds in cereals; Belgian results from 1994 to 1997. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 63(3a): 735-749. {a} Dow Agro-Sci., Laarstr. 17, B-2610 Wilrijk, Belgium

Lundkvist, A. (1998). Weed control in ecological farming. A questionnaire. Vaxtskyddsnotiser 62(2): 23-26. {a} SLU, Inst. Vaxtodlingslara, Box 7043, 750 07 Uppsala, Sweden

McCloskey, M. C., L. G. Firbank, et al. (1998). Interactions between weeds of winter wheeat under different fertilizer, cultivation and weed management treatments. Weed Research 38(1): 11-24. {a} Dep. Statistics Modelling Sci., Univ. Strathclyde, Livingstone Tower, 26 Richmond St., Glasgow G1 1XH, UK

Puntieri, J. G. and P. Pysek (1998). Branching and competitive hierarchies in populations of Galium aparine. Canadian Journal of Botany 76(1): 63-74. {a} Dep. Botany, Univ. Nac. Comahue, Unidad Postal Univ. Comahue, Bariloche 8400, Argentina

Skuterud, R., N. Bjugstad, et al. (1998). Effect of herbicides applied at different times of the day. Crop Protection 17(1): 41-46. {a} Norwegian Crop Research Institute, Plant Protection Centre, Dep. Herbol., N-1432 As, Norway

Steinmann, H. H. (1998). Can integrated arable farming systems achieve long-term stability of crop yield and weed infestation? Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 63(3a): 697-703. {a} Res. Cent. Agric. Environ., Univ. Goettingen, Am Vogelsang 6, D-37075 Goettingen, Germany

Szczesniak, E. (1998). A new locality for Botrychium matricariifolium (Ophioglossaceae) in Lower Silesia. Fragmenta Floristica et Geobotanica Series Polonica 4: 301-302. {a} Zak. Syst. Fitosocjol., Inst. Bot. Uniw. Wroclawskiego, ul. Kanonia 6/8, Pl-50-328 Wroclaw, Poland

Tompkins, D. K., D. Chaw, et al. (1998). Effect of windrow composting on weed seed germination and viability. Compost Science and Utilization 6(1): 30-34. Composting Technol. Cent., Olds Coll., Olds, AB, Canada

Wallinga, J., R. M. W. Groeneveld, et al. (1998). Measures that describe weed spatial patterns at different levels of resolution and their applications for patch spraying of weeds. Weed Research 38(5): 351-359. {a} RIVM, P.O. Box 1, 3720 BA Bilthoven, Netherlands

Benton, J. M. and A. H. Cobb (1997). The modification of phytosterol profiles and in vitro photosynthetic electron transport of Galium aparine L. (cleavers) treated with the fungicide, epoxiconazole. Plant Growth Regulation 22(2): 93-100. {a} Dep. Life Sci., Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK

Gerhards, R., M. Sokefeld, et al. (1997). Site specific weed control in winter wheat. Journal of Agronomy and Crop Science 178(4): 219-225. {a} Inst. Pflanzenbau, Univ. Bonn, Katzenburgweg 5, 53115 Bonn, Germany

Gorb, S., E. Gorb, et al. (1997). Interaction between the non-myrmecochorous herb Galium aparine and the ant Formica polyctena. Plant Ecology 131(2): 215-221. {a} Dep. Insect Physiol., Schmalhausen Inst. Zool., B. Chmelnickogo str. 15, Kiev 252601, Ukraine

Grzybek, J., V. Wongpanich, et al. (1997). Biological evaluation of selected plants from Poland. International Journal of Pharmacognosy 35(1): 1-5. {a} Program Collaborative Res. Pharm. Sci., Dep. Med. Chem. Pharmacognosy, Coll. Pharmacy, Univ. Ill., Chicago, IL 60612, USA

Katis, N. J., G. Kokinis, et al. (1997). Arable weeds identified as new sources of beet mosaic potyvirus in Greece. Annals of Applied Biology 130(2): 255-260. {a} Plant Pathol. Lab., Aristotle Univ. Thessaloniki, Fac. Agric., 540 06 Thessaloniki, Greece

Maluszynska, E. (1997). The purity and botanical composition of contaminations of winter triticale (X Triticosecale wittm.) seed material in reproduction regions of Poland: Part II. The botanical composition of diaspores contaminating winter triticale seed material. Plant Breeding and Seed Science 41(1): 101-117. {a} Seed Quality Department, Plant Breeding and Acclimatization Institute, Radzikow, 05-870, Blonie, Poland

Mercier, L., I. Serre, et al. (1997). Behaviour of alkyl oleates following foliar application in relation to their influence on the penetration of phenmedipham and quizalofop-P-ethyl. Weed Research 37(4): 267-276. {a} Lab. Phytopharmacie, INRA BV 1540, 21034 Dijon cedex, France

Sindarovskaya, Y. R., E. V. Gorb, et al. (1997). Non-myrmechochorous herb Galium aparine L. on the mounds of Formica polyctena Fabr. ants: Probable benefits of the occasional relation. Zhurnal Obshchei Biologii 58(6): 76-80. {a} Taras Shevchenko Kiev Univ., ul. Vladimirskaya 64, Kiev 252017, Ukraine

Thompson, A. J., N. E. Jones, et al. (1997). The effect of temperature on viability of imbibed weed seeds. Annals of Applied Biology 130(1): 123-134. ADAS Boxworth, Boxworth, Cambs CB3 8NN, UK

Andreasen, C., H. Stryhn, et al. (1996). Decline of the flora in Danish arable fields. Journal of Applied Ecology 33(3): 619-626. {a} Dep. Agric. Sci. Weed Sci., Royal Veterinary Agric. Univ., Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark

Cussans, G. W., S. Raudonius, et al. (1996). Effects of depth of seed burial and soil aggregate size on seedling emergence of Alopecurus myosuroides, Galium aparine, Stellaria media and wheat. Weed Research 36(2): 133-141. {a} The Buoy, 49 Esplanade, Fowey, Cornwall PL23 1HZ, UK

Hill, A. L., A. D. Courtney, et al. (1996). An assessment of the possible reasons for differential tolerance to fluroxypyr in selected populations of Galium aparine. Weed Research 36(1): 15-20. {a} ADAS Boxworth, Boxworth, Cambridgeshire CB3 8NN, UK

Liebermann, B., R. Ellinger, et al. (1996). Isotentoxin, a conversion product of the phytotoxin tentoxin. Phytochemistry Oxford 42(6): 1537-1540. {a} Biol.-Pharmazeutische Fak., Friedrich-Schiller-Univ. Jena, Inst. Pharmazie, Neugasse 23, D-07743 Jena, Germany

McCloskey, M., L. G. Firbank, et al. (1996). The dynamics of experimental arable weed communities under different management practices. Journal of Vegetation Science 7(6): 799-808. {a} Inst. Terrestrial Ecol., Merlewood Res. Station, Grange-over-Sands, Cumbria LA11 GJU, UK

Puntieri, J. G. and R. L. Hall (1996). Density-dependent mortality, growth and size inequality in roadside populations of the annual herb Galium aparine L. Ecological Research 11(2): 121-137. {a} Dep. Bot., Univ. Nac. Comahue, cc 1336, 8400 Bariloche, Argentina

Sardi, K. and I. Beres (1996). Effects of fertilizer salts on the germination of corn, winter wheat, and their common weed species. Communications in Soil Science and Plant Analysis 27(5-8): 1227-1235. Pannon Univ. Agricultural Sci., P.O. Box 71, H-8360 Keszthely, Hungary

Snel, M., G. Banks, et al. (1996). Fluroxypyr-butoxypropyl: The first experiences with products based on this new formulation technology. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 61(3b): 1093-1099. {a} DowElanco Europe, Letcombe Lab., Letcombe Regis OX12 9JT, UK

Temizer, A., F. Sayin, et al. (1996). Determination of total flavonoid in various Galium species by differential pulse polarography. Journal of Faculty of Pharmacy of Gazi University 13(1): 97-103. {a} Dep. Anal. Chem., Fac. Pharm., Hacettepe Univ., Ankara 06100, Turkey

Bannister, N. R. and T. A. Watt (1995). Effects of cutting on the growth of Crataegus monogyna (Hawthorn) in hedges. Journal of Environmental Management 45(4): 395-410. {a} Brenoweth, Grampound, Truro, Cornwall TR2 4RB, UK

Benton, J. M. and A. H. Cobb (1995). The plant growth regulator activity of the fungicide, epoxiconazole, on Galium aparine L. (cleavers). Plant Growth Regulation 17(2): 149-155. {a} Dep. Life Sciences, Nottingham Trent Univ., Clifton Lane, Nottingham NG11 8NS, UK

Bingaman, B. R. and N. E. Christians (1995). Greenhouse screening of corn gluten meal as a natural control product for broadleaf and grass weeds. Hortscience 30(6): 1256-1259. Dep. Hortic., Iowa State Univ., Ames, IA 50011, USA

Johnson, S. R. and A. K. Knapp (1995). The influence of fire on Spartina pectinata wetland communities in a northeastern Kansas tallgrass prairie. Canadian Journal of Botany 73(1): 84-90. Div. Biol., Ackert Hall, Kansas State Univ., Manhattan, KS 66506, USA

Koch, H. and P. Weisser (1995). Principal aspects of spray liquid retention and initial deposit formation on targets in plant protection. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz 102(2): 203-210. Landesanstlt pflanzebau und Pflanzenschutz, Essenheimer Str. 144, D-55128 Mainz, Germany

Ligneau, L. A. M. and T. A. Watt (1995). The effects of domestic compost upon the germination and emergency of barley and six arable weeds. Annals of Applied Biology 126(1): 153-162. {a} Wye Coll., Univ. London, Wye, Ashford, Kent TN25 5AH, UK

Manen, J. F. and A. Natali (1995). Comparison of the evolution of ribulose-1, 5-biphosphate carboxylase (rbcL) and atpB-rbcL noncoding spacer sequences in a recent plant group, the tribe Rubieae (Rubiaceae). Journal of Molecular Evolution 41(6): 920-927. {a} Conservatoire Jardin Botaniques, 1 ch. de l'Imperatrice, CH-1292 Chambesy/Geneve, Switzerland

Scheltrup, F. and K. Grossmann (1995). Abscisic acid is a causative factor in the mode of action of the auxinic herbicide quinmerac in cleaver (Galium aparine L.). Journal of Plant Physiology 147(1): 118-126. BASF Agric. Res. Stn., 67114 Limburgerhof, Germany

Stupnicka, R. E. (1995). Plant communities of cereals with respect to the local of field in mountain region. Acta Agrobotanica 48(1): 15-24. Katedra Ogolnej Uprawy Roli i Roslin, Akad. Rolnicza im. H. Kollataja, Al. Mickiewicza 21, 31-120 Krakow, Poland

Wallinga, J. (1995). The role of space in plant population dynamics: Annual weeds as an example. Oikos 74(3): 377-383. DLO-Res. Inst. Agrobiology Soil Fertility, P.O. Box 14, NL-6700 AA Wageningen, Netherlands

West, T. M. (1995). Response of (Galium aparine), at two growth stages, to post-emergence treatments with the herbicide amidosulfuron. Tests of Agrochemicals and Cultivars(16): 40-41. IACR, Long Ashton Res. Stn., Dep. Agric. Sci., Univ. Bristol, Bristol BS18 9AF, UK

Matlack, G. R. (1994). Plant species migration in a mixed-history forest landscape in eastern North America. Ecology Tempe 75(5): 1491-1502. Harvard Univ., Harvard Forest, P.O. Box 68, Petersham, MA 01366, USA

Ramseier, D. (1994). Development and assessment of seed mixtures for wandering fallows. Veroeffentlichungen des Geobotanischen Institutes der Eidgenoessische Technische Hochschule Stiftung Ruebel in Zuerich(118): 1-134. Geobotanisches Inst. ETH, Stiftung Ruebel, Zurichbergstr. 38, CH-8044 Zurich, Switzerland

Schneegurt, M. A., D. R. Heim, et al. (1994). Investigation into the mechanism of isoxaben tolerance in dicot weeds. Weed Science 42(2): 163-167. {a} Dep. Biological Sci., Purdue Univ., West Lafayette, IN 47907, USA

Sheng, Q., Q. Y. Wang, et al. (1994). Quantitative analysis of weed communities of summer crops in Huoqiu County of Anhui Province. Journal of Plant Resources and Environment 3(2): 39-44. {a} Weed Res. Lab., Nanjing Agric. Univ., Nanjing 210014, China

Tzakou, O., E. Verykokidou, et al. (1994). Comparative HPLC analysis of polyphenolic compounds in four species of Galium L. Journal of Liquid Chromatography 17(20): 4463-4467. Dep. Pharmacognosy, Fac. Pharm., University Athens, University Campus, Zografou, Athens 157 71, Greece

Apostolakos, P. and B. Galatis (1993). Interphase and preprophase microtuble organization in some polarized cell types of the liverwort Marchantia paleacea Bert. New Phytologist 124(3): 409-421. Inst. General Botany, Univ. Athens, Athens 157 84, Greece

Bojas, Z. (1993). Regulation of weed communities in clover crops. Ochrana Rostlin 29(2): 147-153. Vyzkumny ustav picninarsky, 664 41 Troubsko u Brna, Czechoslovakia

Bravais, F., F. Cabanne, et al. (1993). Influence of triolein and methyl-, ethyl- and propyloleate on the deposit shape and the foliar penetration of phenmedipham and quizalofop-ethyl. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 58(3a): 803-807. Unite assoc. INRA, Univ. Phytopharm.-Phytobiol. cellulaire, BV 1450, 21034 Dijon Cedex, France

Dessaint, F., R. Chadoeuf, et al. (1993). Long term influence of working of the soil on the density of sprouting adventitious weeds in a non-weeding situation. Canadian Journal of Botany 71(7): 919-926. Inst. Natl. Rech. Agron., Lab. Malherbol., BC 1540, F-21034 Dijon Cedec, France

Firbank, L. G., S. G. Lintell, et al. (1993). Scale, experimental design and the detection of interspecific competition within plant communities. Plant Species Biology 8(2-3): 159-166. {a} Inst. Terrestrial Ecol., Monks Wood, Abbots Ripton, Huntingdon PE17 2LS, UK

Gerhards, R., A. Nabout, et al. (1993). Automatic identification of 10 weed species in digital images using Fourier descriptors and shape parameters. Journal of Agronomy and Crop Science 171(5): 321-328. Lehrstuhl fur Allgemeinend Pflanzenbau der Universitat Bonn, Katzenburgweg 5, 5300 Bonn 1, Germany

Hrouda, L. and K. Marhold (1993). The distribution of Cardamine amara ssp. opicii (Cruciferae) in the Sudeten mountains. Preslia Prague 65(1): 27-32. {a} Dep. Botany, Charles Univ., Benatska 2, CZ-128 01 Praha, Czechoslovakia

Hunt, R., D. W. Hand, et al. (1993). Further responses to CO-2 enrichment in British herbaceous species. Functional Ecology 7(6): 661-668. {a} NERC Unit Comparative Plant Ecol., Dep. Animal Plant Sci., University, Sheffield S10 2T0 2TN, UK

Jennrich, H., W. Nuyken, et al. (1993). BAS 526 .. H, a new combination for flexible weed control in oil seed rape. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 58(3a): 853-861. BASF Aktiengesellschaft, Postfach 220, D-6703 Limburgerhof, Germany

Kaczorowski, G. (1993). Influence of weeds on activity of the beet cyst nematode (Heterodera schachtii Schmidt) on fields of 3-year sugar beet rotations. Hodowla Roslin Aklimatyzacja i Nasiennictwo 37(5-6): 45-68. Inst. Hodowli i Aklimatyzacji Roslin, Poland

Landstrom, S. (1993). Variation in the growth potential in a timothy and red clover mixture. Acta Agriculturae Scandinavica Section B Soil and Plant Science 43(3): 156-162. Dep. Crop Production Sci., Swed. Univ. Agric. Sci., S-904 03 Umea, Sweden

Maranon, T. and J. W. Bartolome (1993). Reciprocal transplants of herbaceous communities between Quercus agrifolia woodland and adjacent grassland. Journal of Ecology 81(4): 673-682. {a} IRNA, CSIC, PO Box 1052, Sevilla 41080, Spain

Puntieri, J. G. (1993). Population density and size inequality in Galium aparine. Preslia Prague 65(1): 53-62. Centro Regional Univ. Bariloche, Univ. Nacional del Comahue, cc 1336, 8400 San Carlos Bariloche, Argentina

Puntieri, J. G. and P. Pysek (1993). The effects of physical support and density on biomass production and size hierarchies of Galium aparinne populations. Oikos 67(2): 279-284. {a} Inst. Applied Ecol., 281 63 Kostelec n.C.1, Czechoslovakia

Salembier, J. F. (1993). Study of DPX 66037 in sugar beet crops and the results of two years of trials. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 58(3a): 871-885. Stn. Phytopharm.-C.R.A. Rue du Bordia 11, 5030 Gembloux, Belgium

Seabra, R. M., J. A. Silveira, et al. (1993). Phenolic compounds of Galium aparine and Galium broteroanum. Plantes Medicinales et Phytotherapie 26(1): 49-51. Lab. Farmacognosia, Faculdade Farmacia, R. Anibal Cunha, 4000 Porto, Portugal

Serre, I., G. Cabanne, et al. (1993). Seedoil derivatives as adjuvants: Influence of methyl to octadecyl oleates on the penetration of herbicides through various plant cuticles. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 58(3a): 795-802. Unite assoc. INRA, Univ. Bourgogne, Phytopharm. Phytobiol., BV 1540, F-21034 Dijon Cedex, France

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