Source: AGRICOLA database (1970-1996)

Abbas, M. A. (1993). Effect of Zn-2+ on water K+ fluxes in detopped maize plants. Biologia Plantarum Prague 35(3): 453-459. Bot. Dep., Fac. Sci., University Mansoura, Mansoura, Egypt

Abeysekera, R. M. and M. E. McCully (1993). The epidermal surface of the maize root tip: II. Abnormalities in a mutant which grows crookedly through soil. New Phytologist 125(4): 801-811. {a} Dep. Biol., Carleton Univ., Ottawa K1S 5B6, Canada

Abeysekera, R. M. and M. E. McCully (1993). The epidermal surface of the maize root tip: I. Development in normal roots. New Phytologist 125(2): 413-429. {a} Dep. Biol., Carleton Univ., Ottawa K1S 5B6, Canada

Abler, M. L. and J. G. Scandalios (1993). Isolation and characterization of a genomic sequence encoding the maize Cat3 catalase gene. Plant Molecular Biology 22(6): 1031-1038. {a} Dep. Genetics, Box 7614, North Carolina State Univ. Raleigh, NC 27695-7614, USA

Abramycheva, N. Y., M. V. Nesterenko, et al. (1993). Factors affecting the binding between fusicoccin and plasma membranes from maize roots. Planta Heidelberg 189(3): 301-305. {a} Institute Agric. Biotechnol., 12 Pskovskaya st., Moscow 127253, Russia

Acharya, C. L. and O. C. Kapur (1993). In situ moisture conservation for wheat (Triticum aestivum) through mulching previous standing maize (Zea mays) crop with wild sage (Lantana camara). Indian Journal of Agricultural Sciences 63(8): 461-466. {a} Dep. Soil Sci., Himachal Pradesh Krishi Vishvavidyalaya, Palampur 176 062

Adipala, E., P. E. Lipps, et al. (1993). Reaction of maize cultivars from Uganda to Exserohilum turcicum. Phytopathology 83(2): 217-223. {a} Dep. Crop Sci., Makerere Univ., P.O. Box 7062, Kampala, Uganda

Adipala, E., P. E. Lipps, et al. (1993). Occurrence of Exserohilum turcicum on maize in Uganda. Plant Disease 77(2): 202-205. {a} Dep. Crop Sci., Makerere Univ., P.O. Box 7062, Kampala, Uganda

Adriaanse, F. G. and J. J. Human (1993). Effect of time of application and nitrate: Ammonium ratio on maize grain yield, grain nitrogen concentration and soil mineral nitrogen concentration in a semi-arid region. Field Crops Research 34(1): 57-70. {a} Grain Crops Res. Inst., Private Bag X1251, Potchefstroom, 2520 South, Central African Republic

Aducci, P., A. Ballio, et al. (1993). Phospholipase A-2 affects the activity of fusicoccin receptors. FEBS Federation of European Biochemical Societies Letters 320(2): 173-176. {a} Dep. Biology, II University Rome 'Tor Vergata', via della Ricerca Scientifica, 00133 Rome, Italy

Aflakpui, G. K. S., T. J. Vyn, et al. (1993). Effect of tillage on nitrogen response in corn (Zea mays L.) after established alfalfa (Medicago sativa L.). Canadian Journal of Plant Science 73(1): 73-81. Dep. Crop Sci., Univ. Guelph, Guelph, Ontario, Canada N1G 2W1

Afyuni, M. M., D. K. Cassel, et al. (1993). Effect of landscape position on soil water and corn silage yield. Soil Science Society of America Journal 57(6): 1573-1580. {a} Dep. Soil Science, North Carolina State Univ., Raleigh, NC 27695-7619, USA

Agostino, A. and M. D. Hatch (1993). A procedure for the purification of thioredoxin-m from leaves of the C-4 plant Zea mays. Protein Expression and Purification 4(5): 434-437. Div. Plant Industry, CSIRO, GPO Box 1600, Canberra, ACT 2601, Australia

Ahmadi, M., W. J. Wiebold, et al. (1993). Grain yield and mineral composition of corn as influenced by endosperm type and nitrogen. Communications in Soil Science and Plant Analysis 24(17-18): 2409-2426. {a} Dep. Agronomy, Ohio State Univ., Columbus, OH 43210, USA

Ahmadi, M., W. J. Wiebold, et al. (1993). Agronomic practices that affect corn kernel characteristics. Agronomy Journal 85(3): 615-619. {a} Dep. Agron., Univ. Mo., Columbia, MO 65211, USA

Al, T. M. A. and A. M. Battikhi (1993). Soil moisture conservation for wheat production in the central highlands of Jordan. Journal of Agronomy and Crop Science 170(3): 208-213. Dep. Soils and Irrigation, University Jordan, Amman, Jordan

Alberico, G. J. and G. R. Cramer (1993). Is the salt tolerance of maize related to sodium exclusion? I. Preliminary screening of seven cultivars. Journal of Plant Nutrition 16(11): 2289-2303. Dep. Biochem., Mail Stop 200, Univ. Nevada, Reno, NV 89557, USA

Aljamal, J. A., G. Genchi, et al. (1993). Purification and characterization of porin from corn (Zea mays L.) mitochondria. Plant Physiology Rockville 102(2): 615-621. {a} Dep. Pharmaco-Biol., Lab. Biochem. and Mol. Biol., Univ. Bari and Consiglio Nazionale delle Ricerche Unit Study Mitochondria, Bari, Italy

Alm, D. M., E. W. Stoller, et al. (1993). An index model for predicting seed germination and emergence rates. Weed Technology 7(3): 560-569. USDA-ARS, Crop Protection Unit, 1102 S. Goodwin Ave., Urbana, IL 61801, USA

Alo, E. B. (1993). The effect of plant density on incidence of the maize streak virus and its vectors Cicadulina spp. (Hemiptera: Cicadellidae). Journal of Plant Protection in the Tropics 10(2): 77-81. Dep. Biological Sciences, Federal Univ. Technol., P. M. B. 2076, Yola, Adamawa State, Nigeria

Amadi, A., A. A. Dickson, et al. (1993). Remediation of oil polluted soils: 1. Effect of organic and inorganic nutrient supplements on the performance of maize (Zea mays L.). Water Air and Soil Pollution 66(1-2): 59-76. {a} Inst. Pollution Studies, Rivers State University Sci. Technol., Nkpolu, P.M. B. 5080, Port Harcourt, Nigeria

Amancio, S., E. Diogo, et al. (1993). Effects of the source of inorganic nitrogen on C and N interaction in maize callus tissue: Phosphoenolpyruvate carboxylase activity, cytosolic pH and 15N amino acids. Physiologia Plantarum 89(3): 618-625. {a} Dep. Botanica e Engenharia Biol. Inst. Superiore de Agronomia, UTL, P-1399 Lisboa Codex, Portugal

Amo, M. J. B., N. Vidal, et al. (1993). Polypeptide markers differentiating juvenile and adult tissues in chestnut. Journal of Plant Physiology 142(1): 117-119. {a} Dep. Biologia Vegetal, Fac. Biologia, Universidad Valencia, Spain

Amrani, N., A. Sarrafi, et al. (1993). Genetic variability for haploid production in crosses between tetraploid and hexaploid wheats with maize. Plant Breeding 110(2): 123-128. {a} Lab. Biotechnologie Amelioration Plantes ENSAT-INP, 145 Av. de Muret, F-31076 Toulouse, France

Anderson, M. A., J. R. McKenna, et al. (1993). Nitrogen recovery by timothy from surface application of dairy cattle slurry. Communications in Soil Science and Plant Analysis 24(11-12): 1139-1151. Virginia Polytechnic Inst., State Univ., Dep. Crop and Soil Environ. Sci., Blacksburg, VA 24061-0404, USA

Anderson, R. L. (1993). Crop residue reduces jointed goatgrass (Aegilops cylindrica) seedling growth. Weed Technology 7(3): 717-722. Agric. Res. Serrv, U.S. Dep. Agric., Akron, CO 80720, USA

Andrade, F. H., S. A. Uhart, et al. (1993). Intercepted radiation at flowering and kernel number in maize: Shade versus plant density effects. Crop Science 33(3): 482-485. {a} Unidad Integrada INTA Estacion Exp. Agropecuaria Balcarce-Fac. Ciencies Agrarias, Univ. Nacional de Mar del Plata, C.C. 276, 7620 Balcarce, Bs. As., Argentina

Andrews, D. L., B. G. Cobb, et al. (1993). Hypoxic and anoxic induction of alcohol dehydrogenase in roots and shoots of seedlings of Zea mays. Plant Physiology Rockville 101(2): 407-414. {a} Dep. Horticultural Sciences, Texas A and M Univ., College Station, Texas 77843-2133, USA

Angelov, M., T. Tsonev, et al. (1993). Changes in some photosynthetic parameters in pea plants after treatment with cobalt. Photosynthetica Prague 28(2): 289-295. Inst. Plant Physiol., Bulgarian Acad. Sci., 1113 Sofia, Bulgaria

Angers, D. A., D. A. N, et al. (1993). Tillage-induced differences in organic matter of particle-size fractions and microbial biomass. Soil Science Society of America Journal 57(2): 512-516. {a} Station Recherches, Agriculture Can., 2560 boul. Hochelaga, Sainte-Foy, Quebec G1V 2J3, Canada

Angle, J. S., C. M. Gross, et al. (1993). Soil nitrate concentrations under corn as affected by tillage, manure, and fertilizer applications. Journal of Environmental Quality 22(1): 141-147. {a} Agron. Dep., Univ. Md., College Park, MD 20742

Apland, J. (1993). The use of field days in economic models of crop farms. Journal of Production Agriculture 6(3): 437-444. Dep. Agric. Applied Economics, Univ. Minnesota, St. Paul, MN 55108, USA

Appenroth, K. J. and R. Bergfeld (1993). Photophysiology of turion germination in Spirodela polyrhiza (L.) Schleiden: XI. Structural changes during red light induced responses. Journal of Plant Physiology 141(5): 583-588. {a} Univ. Jena, Inst. General Botany, Von-Hase-Weg 3, O-6900 Jena, Germany

Archer, T. L. and E. D. Bynum, Jr. (1993). Yield loss to corn from feeding by the Banks grass mite and two-spotted spider mite (Acari: Tetranychidae). Experimental and Applied Acarology 17(12): 895-903. {a} Texas Agric. Experiment Stn., Rt. 3, Box 219, Lubbock, TX 79401, USA

Armstrong, R. D., K. R. Helyar, et al. (1993). Direct assessment of mineral phosphorus availability to tropical crops using phosphorus-32 labelled compounds. Plant and Soil 150(2): 279-287. Qld. Dep. Primary Industries, LMB 6, Emerald, Qld. 4720, Australia

Asada, K., U. Heber, et al. (1993). Electron flow to the intersystem chain from stromal components and cyclic electron flow in maize chloroplasts, as detected in intact leaves by monitoring redox change of P700 and chlorophyll fluorescence. Plant and Cell Physiology 34(1): 39-50. {a} Res. Inst. Food Sci., Kyoto Univ., Uji, Kyoto, 611, Japan

Asencor, F. J., C. Santamaria, et al. (1993). Dielectric energy of orientation in dead and living cells of Schizosaccharomyces pombe: Fitting of experimental results to a theoretical model. Biophysical Journal 64(5): 1626-1631. {a} Dep. Microbiol. Genetica, Univ. Salamanca, 37071 Salamanca, Spain

Assabgui, R. A., J. T. Arnason, et al. (1993). Hydroxamic acid content in maize (Zea mays) roots of 18 Ontario recommended hybrids and prediction of antibiosis to the western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae). Canadian Journal of Plant Science 73(1): 359-363. {a} Ottawa-Carleton Institute Biol., Univ. Ottawa, Ottawa, Ontario, Canada K1N 6N5

Assabgui, R. A., L. M. Reid, et al. (1993). Correlation of kernel (E)-ferulic acid content of maize with resistance to Fusarium graminearum. Phytopathology 83(9): 949-953. {a} Ottawa-Carleton Inst. Biol., Univ. Ottawa, Ottawa, Can., Ottawa, Ontario K1A 0C6

Atkinson, B. G., M. Raizada, et al. (1993). The independent stage-specific expression of the 18-kDa heat shock protein genes during microsporogenesis in Zea mays L. Developmental Genetics 14(1): 15-26. {a} Dep. Zool., Univ. Western Ont., London, ON N6A 5B7, Canada

Atkinson, P. W., W. D. Warren, et al. (1993). The hobo transposable element of Drosophila can be cross-mobilized in houseflies and excises like the Ac element of maize. Proceedings of the National Academy of Sciences of the United States of America 90(20): 9693-9697. {a} Div. Entomol., Commonwealth Scientific Industrial Res. Organization, GPO Box 1700, Canberra, ACT, 2601, Australia

Atokple, I. D. K., B. B. Singh, et al. (1993). Independent inheritance of striga and alectra resistance in cowpea genotype B301. Crop Science 33(4): 714-715. {a} Int. Inst. Trop. Agric., Kano Stn., P.M.B. 3112, Kano, Nigeria

Aubry, L., G. Klein, et al. (1993). Kinetics of endosomal pH evolution in Dictyostelium discoideum amoebae: Study by fluorescence spectroscopy. Journal of Cell Science 105(3): 861-866. {a} Lab. Biol. Cell., URA 1130 CNRS, Dep. Biol. Mol. Structurale, Groupement CEA-CNRS-INSERM-UJF, Cent. d'Etudes Nucleaires, 38041 Grenoble, France

Azam, F., F. W. Simmons, et al. (1993). Mineralization of N from plant residues and its interaction with native soil N. Soil Biology and Biochemistry 25(12): 1787-1792. {a} Dep. Agronomy, Univ. Illinois, Urbana, IL 61801, USA

Babalakova, N. K., C. Lanz, et al. (1993). Effect of short-term treatment by copper and calcium on the H+-transport activity, uptake and element contents in Zea mays L. roots. Comptes Rendus de l'Academie Bulgare des Sciences 46(6): 81-84. M. Popov Inst. Plant Physiol., Bulg. Acad. Sci., 1113 Sofia, Bulgaria

Badger, M. R., H. Pfanz, et al. (1993). Evidence for the functioning of photosynthetic carbon dioxide concentrating mechanisms in lichens containing green algal and cyanobacterial photobionts. Planta Heidelberg 191(1): 57-70. {a} Julius-von-Sachs-Inst. Biowissenschaften, Universitaet Wuerzburg, Mittlerer Dallenbergweg 64, D-97082 Wuerzburg, Germany

Bae, Y. S., Y. C. Choi, et al. (1993). A plant growth-inhibitory substance produced by Streptomyces sp.: I Selection of the effective isolate and its biological property. RDA Journal of Agricultural Science Crop Protection 35(2): 349-352. Agric. Chemicals Res. Inst., RDA, Suwon, South Korea

Bagshaw, S. L. and R. E. Cleland (1993). Is wall-bound calcium redistributed during the gravireaction of stems and coleoptiles? Plant Cell and Environment 16(9): 1081-1089. {a} Botany Dep., KB-15, Univ. Washington, Seattle, WA 98195, USA

Bakrim, N., J. L. Prioul, et al. (1993). Regulatory phosphorylation of C-4 phosphoenolpyruvate carboxylase: A cardinal event influencing the photosynthesis rate in sorghum and maize. Plant Physiology Rockville 101(3): 891-897. {a} Laboratoire Physiol. Vegetale Moleculaire, URA Cent. National Recherche Sci. D 1128, Univ. Paris-Sud, Cent. d'Orsay, Batiment 430, 91405 Orsay Cedex, France

Baligar, V. C., R. E. Schaffert, et al. (1993). Growth and nutrient uptake parameters in sorghum as influenced by aluminum. Agronomy Journal 85(5): 1068-1074. {a} USDA-ARS, Beckley, WV 25802-0867, USA

Ball, D. A. and S. D. Miller (1993). Cropping history, tillage, and herbicide effects on weed flora composition in irrigated corn. Agronomy Journal 85(4): 817-821. {a} Columbia Basin Agric. Res. Stn., Oregon State Univ., Pendleton, OR 97801, USA

Ball, D. A. and M. J. Shaffer (1993). Simulating resource competition in multispecies agricultural plant communities. Weed Research 33(4): 299-310. {a} U.S. Dep. Agric., Agric. Res. Serv., Great Plains Systems Res. Unit, PO Box E, Fort Collins, CO 80522, USA

Baluska, F., R. W. Brailsford, et al. (1993). Cellular dimorphism in the maize root cortex: Involvement of microtubules, ethylene and gibberellin in the differentiation of cellular behaviour in postmitotic growth zones. Botanica Acta 106(5): 394-403. {a} Inst. Bot., Slovak Acad. Sci., Dubravska cesta 14, 84223 Bratislava, Slovenia

Baluska, F., J. S. Parker, et al. (1993). A role for gibberellic acid in orienting microtubules and regulating cell growth polarity in the maize root cortex. Planta Heidelberg 191(2): 149-157. {a} Dep. Agric. Sci., Univ. Bristol, AFRC Inst. Arable Crops Research, Long Ashton Research Station, Bristol BS18 9AF, UK

Baluska, F., J. S. Parker, et al. (1993). The microtubular cytoskeleton in cells of cold-treated roots of maize (Zea mays L.) shows tissue-specific responses. Protoplasma 172(2-4): 84-96. {a} Dep. Agric. Sci., Univ. Bristol, AFRC Inst. Arable Crops Research, Long Ashton Research Station, Bristol BS18 9AF, UK

Bangarwa, A. S., M. S. Kairon, et al. (1993). Effect of plant density and levels of nitrogen on the growth analysis of winter maize (Zea mays L.). Crop Research Hisar 6(1): 5-16. Dep. Agronomy, CCS Haryana Agricultural Univ., Hisar-125 004, India

Bao, X. M. and B. Q. Huang (1993). Analysis of gliadin gene expression in wheat-wheatgrass alien addition lines. Acta Agronomica Sinica 19(3): 233-238. Inst. Genetics Cytol., Northeast Normal University, Changchun 130024, China

Bar, Z. A. and A. Schaffer (1993). Size and carbohydrate content of ears of baby corn in relation to endosperm type (Su, su, se, sh2). Journal of the American Society for Horticultural Science 118(1): 141-144. {a} Field Crops Inst., Agric. Res. Organization, Newe Ya'ar Experiment Station, P.O. Haifa 31999, Israel

Barakate, A., W. Martin, et al. (1993). Characterization of a multigene family encoding an exopolygalacturonase in maize. Journal of Molecular Biology 229(3): 797-801. {a} Lab. Biol. Moleculaire Vegetale, Associe au CNRS, Univ. J. Fourier, BP53X, 38041 Grenoble, France

Barcelo, J., P. Guevara, et al. (1993). Silicon amelioration of aluminium toxicity in teosinte (Zea mays L. ssp. mexicana). Plant and Soil 154(2): 249-255. Lab. Fisiologia Vegetal, Facultad Ciencias Univ. Autonoma de Barcelona, E-08193 Bellaterra, Spain

Barlow, P. W., J. S. Parker, et al. (1993). Gravitropism of primary roots of Zea mays L. at different displacement angles. Annals of Botany London 71(5): 383-388. Dep. Agricultural Sciences, Univ. Bristol, AFRC Inst. Arable Crops Res., Long Ashton Research Station, Bristol BS18 9AF, UK

Barloy, D. and M. Beckert (1993). Improvement of regeneration ability of androgenetic embryos by early anther transfer in maize. Plant Cell Tissue and Organ Culture 33(1): 45-50. I.N.R.A. Station d'Amelioration Plantes, Domaine Crouelle, 63039 Clermont-FD CDX, France

Barrett, K. J., S. E. Gold, et al. (1993). Identification and complementation of a mutation to constitutive filamentous growth in Ustilago maydis. Molecular Plant Microbe Interactions 6(3): 274-283. {a} Biotechnol. Lab., Dep. Microbiol., Univ. British Columbia, Vancouver V6T 1Z3, Canada

Barry, D. A. J., D. Goorahoo, et al. (1993). Estimation of nitrate concentrations in groundwater using a whole farm nitrogen budget. Journal of Environmental Quality 22(4): 767-775. {a} Cent. Land and Water Stewardship, Univ. Guelph, Guelph, ON N1G 2W1, Canada

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

Bassetti, P. and M. E. Westgate (1993). Water deficit affects receptivity of maize silks. Crop Science 33(2): 279-282. {a} North Cent. Soil Conserv. Res. Lab., Morris, MN 56267, USA

Bassetti, P. and M. E. Westgate (1993). Senescence and receptivity of maize silks. Crop Science 33(2): 275-278. {a} North Cent. Soil Conserv. Res. Lab., Morris, MN 56267, USA

Bassetti, P. and M. E. Westgate (1993). Emergence, elongation, and senescence of maize silks. Crop Science 33(2): 271-275. {a} North Cent. Soil Conserv. Res. Lab., Morris, MN 56267, USA

Bata, I. C. and F. Dutka (1993). Influence of the thiocarbamate herbicide EPTC and the safener dichlormid on acetate incorporation into membrane lipids of maize. Plant Physiology and Biochemistry Montrouge 31(2): 257-261. {a} Dep. Pesticide Res., Central Res. Inst. Chem., Hungarian Academy Sci., PO Box 17, H-1525 Budapest, Hungary

Bausch, W. C. (1993). Soil background effects on reflectance-based crop coefficients for corn. Remote Sensing of Environment 46(2): 213-222. USDA Agric. Res. Serv., Natural Resources Res. Center, Water Management Res. Unit, AERC-CSU Foothills, Ft. Collins, CO 80523, USA

Beaumont, V. H. and J. M. Widholm (1993). Ploidy variation of pronamide-treated maize calli during long term culture. Plant Cell Reports 12(11): 648-651. {a} Univ. Ill., Dep. Agron. Plant Anim. Biotechnol. Lab., 1201 W. Gregory, Urbana, IL 61801, USA

Becker, D., C. Zeilinger, et al. (1993). Identification and biochemical characterization of the plasma-membrane proton ATPase in guard cells of Vicia faba L. Planta Heidelberg 190(1): 44-50. {a} Institut fuer Biophysik, Herrenhaeuserstrasse 2, W-3000 Hannover 21, Germany

Becker, T. W., R. C. Perrot, et al. (1993). Subcellular and immunocytochemical localization of the enzymes involved in ammonia assimilation in mesophyll and bundle-sheath cells of maize leaves. Planta Heidelberg 191(1): 129-136. {a} Lab. Metabolisme Nutrition Plantes INRA, Centre Versailles, Route Saint-Cyr, F-78026 Versailles Cedex, France

Beech, R. N. and C. Strobeck (1993). Structure of the intergenic spacer region from the ribosomal RNA gene family of white spruce (Picea glauca). Plant Molecular Biology 22(5): 887-892. {a} Inst. Parasitology, MacDonald Coll., McGill Univ., 21,111 Lakeshore Road, Ste Anne Bellevue, PQ H9X 3V9, Canada

Beecroft, P. and J. N. A. Lott (1993). Identification of the sites of potassium leakage from imbibing seeds and grains. Seed Science Research 3(2): 105-110. {a} Dep. Biol., McMaster Univ., Hamilton, Ontario L8S 4K1, Canada

Beerwinkle, K. R., T. N. Shaver, et al. (1993). Field observations of adult emergence and feeding behavior of Helicoverpa zea (Lepidoptera: Noctuidae) on dallisgrass ergot honeydew. Environmental Entomology 22(3): 554-558. Crop Insect Pest Management Res. Unit, USDA-ARS, Route 5, Box 808, College Station, TX 77845, USA

Bekker, A. W., R. G. Chase, et al. (1993). Effects of coralline lime on nutrient uptake and yield of field-grown sweet corn and peanuts in oxidic soils of Western Samoa. Fertilizer Research 36(3): 211-219. University South Pacific at Alafua, Soil Science Sect., Private Bag, Apia, Western Samoa

Belousov, I. E., S. A. Ryabtsova, et al. (1993). Phosphate regime of meadow-chernozemic paddy soils of Kuban. Pochvovedenie(2): 133-137. All-Union Res. Inst. Rice, Krasnodar, Russia

Benbi, D. K., R. Singh, et al. (1993). Response of dryland wheat to fertilizer nitrogen in relation to stored water, rainfall and residual farm yard manure. Fertilizer Research 36(1): 63-70. {a} Dep. Soils, Punjab Agric. Univ., Ludhiana 141004, India

Berhan, A. M., S. H. Hulbert, et al. (1993). Structure and evolution of the genomes of Sorghum bicolor and Zea mays. Theoretical and Applied Genetics 86(5): 598-604. {a} Dep. Biol. Sci., Purdue Univ., W. Lafayette, IN 47907, USA

Bernardo, R. (1993). Estimation of coefficient of coancestry using molecular markers in maize. Theoretical and Applied Genetics 85(8): 1055-1062. Limagrain Genet., 4805 W. Old Church Rd., Champaign, IL 61821, USA

Berzonsky, W. A. and H. N. Lafever (1993). Comparison of Hungarian winter durum wheat to Ohio soft red winter wheat. Journal of Production Agriculture 6(2): 276-279. {a} Ohio Agric. Res. Dev. Center, Ohio State Univ., Wooster, OH 44691-4096, USA

Bessin, R. T. and T. E. Reagan (1993). Cultivar resistance and arthropod predation of sugarcane borer (Lepidoptera: Pyralidae) affects incidence of deadhearts in Louisiana sugarcane. Journal of Economic Entomology 86(3): 929-932. {a} Dep. Entomol., Univ. Ky., Lexington, KY 40546-0091, USA

Beuve, M. and H. Lapierre (1993). Specific resistance of maize (Zea mays mays L.) towards BYD-RPV, one of the viruses of the barley yellow dwarf disease. Comptes Rendus de l'Academie des Sciences Serie III Sciences de la Vie 316(3): 275-280. Station Pathologie Vegetale, route de Saint-Cyr, 78026 Versailles, Cedex, France

Beverly, R. B. (1993). Re-evaluation reveals weaknesses of dris and sufficiency range diagnoses for wheat, corn, and alfalfa. Communications in Soil Science and Plant Analysis 24(5-6): 487-501. Hortic. Dep., Ga. Experiment Station, Griffin, GA 30223-1797

Bewley, J. D., D. W. M. Leung, et al. (1993). Transient starch accumulation in the cotyledons of fenugreek seeds during galactomannan mobilization from the endosperm. Plant Physiology and Biochemistry Montrouge 31(4): 483-490. {a} Dep. Botany, Univ. Guelph, Guelph, Ontario N1G 2W1, Canada

Binford, G. D. and A. M. Blackmer (1993). Visually rating the nitrogen status of corn. Journal of Production Agriculture 6(1): 41-46. {a} Dep. Agron., Iowa State Univ., Ames, IA 50011

Bing, L. A. and L. C. Lewis (1993). Occurrence of the entomopathogen Beauveria bassiana (Balsamo) Vuillemin in different tillage regimes and in Zea mays L. and virulence towards Ostrinia nubilalis (Huebner). Agriculture Ecosystems and Environment 45(1-2): 147-156. {a} USDA/ARS, Corn Insects Research Unit, Genetics Lab., c/o Insectary, Iowa State Univ., Ames, IA 50011, USA

Binns, M. R. and C. S. Lin (1993). Monte Carlo distributions of parameters relating to a superiority measure for cultivar assessment. Agronomy Journal 85(5): 1087-1089. {a} Statistical Res. Sect., Res. Prog. Serv., Agric. Canada, Ottawa, ON, Canada K1A 0C6

Biradar, D. P. and A. L. Rayburn (1993). Intraplant nuclear DNA content variation in diploid nuclei of maize (Zea mays L.). Journal of Experimental Botany 44(263): 1039-1044. {a} Dep. Agron., 320 Plant and Animal Biotechnol., Lab., 1201 W. Gregory, Univ. Ill., Urbana, IL 61601, USA

Biradar, D. P., A. L. Rayburn, et al. (1993). Endopolyploidy in diploid and tetraploid maize (Zea mays L.). Annals of Botany London 71(5): 417-421. Dep. Agronomy, 320 Plant Animal Biotechnology Lab., Univ. Ill., Urbana, IL 61801, USA

Birner, T. P. and E. Steudle (1993). Effects of anaerobic conditions on water and solute relations, and on active transport in roots of maize (Zea mays L.). Planta Heidelberg 190(4): 474-483. {a} Lehrstuhl Pflanzenoekologie, Univ. Bayreuth, Universitaetsstr. 30, W-8580 Bayreuth, Germany

Birschbach, E. D., M. G. Myers, et al. (1993). Triazine-resistant smooth pigweed (Amaranthus hybridus) control in field corn (Zea mays L.). Weed Technology 7(2): 431-436. Dep. Agron., Univ. Wisconsin, Madison, WI 53706, USA

Blackbourn, H. D. and N. H. Battey (1993). Annexin-mediated secretory vesicle aggregation in plants. Physiologia Plantarum 89(1): 27-32. {a} Dep. Biochemistry, Univ Cambridge, Tennis Court Rd., Cambridge CB2 1QW, UK

Blackmer, T. M., J. S. Schepers, et al. (1993). Chlorophyll meter readings in corn as affected by plant spacing. Communications in Soil Science and Plant Analysis 24(17-18): 2507-2516. {a} Dep. Agronomy, Univ. Nebraska-Lincoln, Lincoln, NE 68583, USA

Blancaflor, E. B. and K. H. Hasenstein (1993). Organization of cortical microtubules in graviresponding maize roots. Planta Heidelberg 191(2): 231-237. {a} Dep. Biol., Univ. Southwestern Louisiana, P.O. Box Box 42451, Lafayette, LA 70504-2451, USA

Boari, F. and M. Malone (1993). Wound-induced hydraulic signals: Survey of occurrence in a range of species. Journal of Experimental Botany 44(261): 741-746. {a} HRI Wellesbourne, Warwicks CV35 9EF, UK

Bogyo, T. P., J. W. Paulis, et al. (1993). Quantitative genetic studies of A/B zeins using a new model to test non-allelic interactions. Theoretical and Applied Genetics 87(1-2): 33-37. {a} Washington State Univ., Pullman, WA 99164-3144, USA

Bokros, C. L., J. D. Hugdahl, et al. (1993). Characterization of the reversible taxol-induced polymerization of plant tubulin into microtubules. Biochemistry 32(13): 3437-3447. {a} Dep. Botany, Univ. Tex. Austin, Austin, TX 78713, USA

Bolland, M. D. A. (1993). Residual value of superphosphate and Queensland rock phosphate measured using yields of serradella, burr medic and subterranean clover grown in rotation with wheat and bicarbonate-extractable soil phosphorus. Communications in Soil Science and Plant Analysis 24(11-12): 1243-1269. Western Aust. Dep. Agric., Div. Plant Ind., Baron-Hay Court, South Perth, Western Aust. 6151, Australia

Boppenmaier, J., A. E. Melchinger, et al. (1993). Genetic diversity for RFLPs in European maize inbreds: III. Performance of crosses within versus between heterotic groups for grain traits. Plant Breeding 111(3): 217-226. {a} Bot. Inst., Ludwig-Maximilians-Univ. Muenchen, Menzinger Str. 67, D-80638 Muenchen, Germany

Borovskii, G. B. and V. K. Voinikov (1993). Localization of low molecular weight heat shock proteins on the surface and inside of maize mitochondria. Fiziologiya Rastenii Moscow 40(4): 596-598. Sib. Inst. Physiol. Biochem. Plant, Sib. Dep., Acad. Sci. Russ., Irkutsk, Russia

Boudreau, M. A. (1993). Effect of intercropping beans with maize on the severity of angular leaf spot of beans in Kenya. Plant Pathology Oxford 42(1): 16-25. Dep. Plant Pathol., Ohio State Univ., Wooster, OH 44691, USA

Bowen, W. T., J. W. Jones, et al. (1993). Evaluation of the nitrogen submodel of CERES-maize following legume green manure incorporation. Agronomy Journal 85(1): 153-159. {a} IFDC, P.O. Box 2040, Muscle Shoals, AL 35662

Bowman, D., P. Raymer, et al. (1993). Crop performance trials under irrigated and dryland conditions. Agronomy Journal 85(3): 610-614. {a} Dep. Crop Sci., North Carolina State Univ., Raleigh, NC 27695-8604, USA

Bozarth, S. (1993). Maize (Zea mays) cob phytoliths from a central Kansas Great Bend Aspect archaeological site. Plains Anthropologist 38(146): 279-286. Dep. Geography, Univ. Kansas, Lawrence, KS 66045, USA

Brailsford, R. W., L. A. C. J. Voesenek, et al. (1993). Enhanced ethylene production by primary roots of Zea mays L. in response to sub-ambient partial pressures of oxygen. Plant Cell and Environment 16(9): 1071-1080. {a} Dep. Agric. Sci., Univ. Bristol., AFRC Inst. Arable Crops Res., Long Ashton Research Station, Bristol BS18 9AF, UK

Brandao, M. E. G. and H. Aoyama (1993). Effect of cations on the maize germ inorganic pyrophosphatase activity. Plant Physiology and Biochemistry Paris 31(6): 937-941. Dep. Bioquimica, Inst. Biol., Universidade Estadual de Campinas, Cidade Universitaria, 13084-100 Campinas-Sao Paulo, Brazil

Brauer, D., S. I. Tu, et al. (1993). Evidence for an indirect coupling mechanisms for the nitrate-sensitive proton pump from corn root tonoplast membranes. Physiologia Plantarum 89(3): 588-591. {a} Plant and Soil Biophysics Res. Unit, Eastern Regional Res. Cent., Agric. and Res. Serv., United States Dep. Agric., Philadelphia, PA 19118, USA

Bret, H. M. S. (1993). Total epidermal cell walls of pea stems respond differently to auxin than does the outer epidermal wall alone. Planta Heidelberg 190(3): 379-386. Dep. Integrative Biol., Univ. Calif., Berkeley, CA 94720, USA

Bridgemohan, P. and C. R. McDavid (1993). A model of the competitive relationships between R. cochinchinensis and Z. mays. Annals of Applied Biology 123(3): 649-656. {a} Caribbean Agricultural Res. Dev. Inst., Bath Estate, Roseau, Commonwealth Dominica, West Indies

Brignon, P., M. Lepetit, et al. (1993). Nuclease sensitivity and functional analysis of a maize histone H3 gene promoter. Plant Molecular Biology 22(6): 1007-1015. {a} Institut de Biologie Moleculaire des Plates du C.N.R.S., Univ. Louis Pasteur, 12 rue du General Zimmer, 67000 Strasbourg, France

Brooking, I. R. (1993). Effect of temperature on kernel growth rate of maize grown in a temperate maritime environment. Field Crops Research 35(2): 135-145. Horticulture Food Res. Inst. New Zealand Ltd., Private Bag 11030, Palmerston North, New Zealand

Brown, M. P., B. J. Steffenson, et al. (1993). Host range of Pyrenophora teres f. teres isolates from California. Plant Disease 77(9): 942-947. Dep. Plant Pathol., Univ. California, Davis 95616, USA

Brown, R. E., G. E. Varvel, et al. (1993). Residual effects of interseeded hairy vetch on soil-nitrate-nitrogen levels. Soil Science Society of America Journal 57(1): 121-124. {a} USDA-ARS, Dep. Agron., Univ. Nebr., Lincoln, NE 68583, USA

Brownie, C., D. T. Bowman, et al. (1993). Estimating spatial variation in analysis of data from yield trials: A comparison of methods. Agronomy Journal 85(6): 1244-1253. {a} Dep. Statistics, Box 8203, North Carolina State Univ., Raleigh, NC 27695, USA

Bruce, J. A., D. Penner, et al. (1993). Absorption and activity of nicosulfuron and primisulfuron in quackgrass (Elytrigia repens) as affected by adjuvants. Weed Science 41(2): 218-224. Dep. Crop and Soil Sci., Mich. State Univ., East Lansing, MI 48824, USA

Brueggemann, W., K. K. Maas, et al. (1993). Iron uptake by leaf mesophyll cells: The role of the plasma membrane-bound ferric-chelate reductase. Planta Heidelberg 190(2): 151-155. {a} Bot. Inst. III, Heinrich-Heine-Universitaet, Universitaetsstrasse 1, W-4000 Duesseldorf 1, Germany

Brzobohaty, B., I. Moore, et al. (1993). Release of active cytokinin by a beta-glucosidase localized to the maize root meristem. Science Washington D C 262(5136): 1051-1054. {a} Max-Planck Inst., Zuechtungsforschung, D-50829, Koeln 30, Germany

Bubeck, D. M., M. M. Goodman, et al. (1993). Quantitative trait loci controlling resistance to gray leaf spot in maize. Crop Science 33(4): 838-847. {a} Northrup King Co., 317 330th St., Stanton, MN 55018-4308, USA

Buchanan, M. and L. D. King (1993). Carbon and phosphorus losses from decomposing crop residues in no-till and conventional till agroecosystems. Agronomy Journal 85(3): 631-638. {a} Board Enviorn. Studies, Univ. Calif., Santa Cruz, CA 95064, USA

Buhler, D. D., G. W. Randall, et al. (1993). Atrazine and alachlor losses from subsurface tile drainage of a clay loam soil. Journal of Environmental Quality 22(3): 583-588. {a} USDA-ARS Plant Sci. Res. Unit, Dep. Agron. Plant Genetics, Univ. Minn., St. Paul, MN 55108, USA

Bui, E. N. and J. E. Box, Jr. (1993). Growing corn root effects on interrill soil erosion. Soil Science Society of America Journal 57(4): 1066-1070. {a} USDA-ARS Southern Piedmont Conservation Res. Cent. P.O. Box 555, Watkinsville, GA 30677

Bullock, D. G., F. W. Simmons, et al. (1993). Growth analysis of corn grown with or without starter fertilizer. Crop Science 33(1): 112-117. {a} Dep. Agronomy, 1102 S. Goodwin Ave., Univ. Illinois, Urbana, IL 61801

Bundy, L. G. and T. W. Andraski (1993). Soil and plant nitrogen availability tests for corn following alfalfa. Journal of Production Agriculture 6(2): 200-206. {a} Dep. Soil Sci., 1525 Observatory Dr., Univ. Wis., Madison, WI 53706-1299, USA

Bundy, L. G., T. W. Andraski, et al. (1993). Nitrogen credits in soybean-corn crop sequences on three soils. Agronomy Journal 85(5): 1061-1067. {a} Dep. Soil Sci., 1525 Observatory Dr., Univ. of Wisconsin, Madison, WI 53706, USA

Buresh, R. J., D. P. Garrity, et al. (1993). Fallow and sesbania effects on response of transplanted lowland rice to urea. Agronomy Journal 85(4): 801-808. {a} Int. Centre Res., Agroforestry, P.O. Box 30677, Nairobi, Kenya

Burgess, J. C. and D. R. West (1993). Selection for grain yield following selection for ear height in maize. Crop Science 33(4): 679-682. {a} Dep. Plant and Soil Sci., Univ. Tennessee, P.O. Box 1071, Knoxville, TN 37901-1071, USA

Butler, W. M. and A. C. Cuming (1993). Differential molecular responses to abscisic acid and osmotic stress in viviparous maize embryos. Planta Heidelberg 189(1): 47-54. {a} Dep. Genetics, Leeds Univ., Leeds LS2 9JT, UK

Buwalda, F., K. L. J. De, et al. (1993). Effects of atmospheric H-2S on thiol composition of crop plants. Journal of Plant Physiology 142(3): 281-285. {a} Res. Stn. Floriculture, Linnaeuslaan 2 a, 1431 JV Aalsmeer, Netherlands

Cahn, M. D., D. R. Bouldin, et al. (1993). Cation and nitrate leaching in an oxisol of the Brazilian Amazon. Agronomy Journal 85(2): 334-340. {a} USDA-ARS, Crop Res. Proteciton Unit, 1304 W. Pennsylvania Ave., Urbana, IL 61801, USA

Cai, B. L. and S. L. Liu (1993). A new species of Phobaeticus from China (Phasmatodea: Phasmatidae). Acta Entomologica Sinica 36(4): 469-471. {a} Dep. Biol., Nankai Univ., Tianjin 300071, China

Cambardella, C. A. and E. T. Elliott (1993). Carbon and nitrogen distribution in aggregates from cultivated and native grassland soils. Soil Science Society of America Journal 57(4): 1071-1076. {a} USDA-ARS, Natl. Soil Tilth Lab., 2150 Pammel Drive, Ames, IA 50011, USA

Campbell, K. W., D. G. White, et al. (1993). Sources of resistance in F-1 corn hybrids to ear rot caused by Aspergillus flavus. Plant Disease 77(11): 1169. {a} Dep. Plant Pathol., University Illinois, Urbana, IL 61801, USA

Canny, M. J. and C. X. Huang (1993). What is in the intercellular spaces of roots?: Evidence from the cryo-analytical-scanning electron microscope. Physiologia Plantarum 87(4): 561-568. {a} Biol. Dep., Carleton Univ., Ottawa, Canada

Cardon, G. H., M. Frey, et al. (1993). Definition and characterization of an artificial En/Spm-based transposon tagging system in transgenic tobacco. Plant Molecular Biology 23(1): 157-178. {a} Max-Planck-Inst. Zuechtungsforschung, Abteilung Molekulare Pflanzengenetik, Carl-von-Linne-Weg 10, 50829 Koeln 30, Germany

Castro, B. and J. Torrent (1993). Phosphate availability in soils at water activities below one. Communications in Soil Science and Plant Analysis 24(15-16): 2085-2092. Dep. Ciencias Recursos Agricolas Forestales, Univ. Cordoba, Apdo. 3048, 14080 Cordoba, Spain

Cavalcante, M. J. B. and J. J. Muchovej (1993). Microwave irradiation of seeds and selected fungal spores. Seed Science and Technology 21(1): 247-253. Dep. Fitopatol., Univ. Federal Vicosa, 36.570 Vicosa, Minas Gerais, Brazil

Cha, M. R., M. L. Evans, et al. (1993). Novel use of positively charge nylon transfer membranes for trapping indoleacetic acid or other small anions during efflux from plant tissues. Plant Physiology and Biochemistry Montrouge 31(2): 263-269. {a} Dep. Plant Biol., Ohio State University, 1735 Neil Ave., Columbus, Ohio 43210

Chalyk, S. T. and V. V. Ostrovsky (1993). Comparison of haploid and diploid maize (Zea mays L.) plants with identical genotypes. Journal of Genetics and Breeding 47(1): 77-80. Inst. Genet., Kishinev, Moldova

Chandel, A. S., V. K. Singh, et al. (1993). Canopy characters, net assimilation rate, competitive indices and grain yield of soybean (Glycine max) intercropped with maize (Zea mays) in north India. Indian Journal of Agricultural Sciences 63(4): 220-224. Dep. Agron., Govind Ballabh Pant Univ. Agric. Technol., Pantnagar, U.P. 263 145, India

Chang, R. Y. and P. A. Peterson (1993). Instability of the maize disease-resistance gene, Rp1, in transposable element-laden lines. Journal of Genetics and Breeding 47(2): 145-150. {a} Dep. Agron., Iowa State Univ., Ames, IA 50011, USA

Chapman, K. D. and T. S. Moore, Jr. (1993). Catalytic properties of a newly discovered acyltransferase that synthesizes N-acylphosphatidylethanolamine in cottonseed (Gossypium hirsutum L.) microsomes. Plant Physiology Rockville 102(3): 761-769. {a} Botany Dep., La. State Univ., Baton Rouge, LA 70803, USA

Charest, C., Y. Dalpe, et al. (1993). The effect of vesicular-arbuscular mycorrhizae and chilling on two hybrids of Zea mays L. Mycorrhiza 4(2): 89-92. {a} Dep. Biol., Univ. Otawa, P.O. Box 450 STNA, Ottawa, ON K1N 6N5, Canada

Chase, A. R. (1993). Efficacy of fosetyl-Al for control of some bacterial diseases on ornamentals. Plant Disease 77(8): 771-776. Plant Pathol., Univ. Florida, Inst. Food Agric. Sci., Central Florida Res. Education Cent., Apopka, FL 32703, USA

Chela, G. S., M. S. Tiwana, et al. (1993). Effect of bacterial cultures and nitrogen fertility on the yield and quality of maize fodder (Zea mays L.). Annals of Biology Ludhiana 9(1): 83-86. Dep. Anim. Nutr. Forages, Punjab Agric. Univ., Ludhiana-141 004, India

Chen, J. S. and A. F. MacKenzie (1993). Effects of rates and placement methods of urea and potassium chloride on soil nitrogen and potassium and corn dry matter yield. Canadian Journal of Soil Science 73(2): 147-155. {a} Soil Fertilizer Research Inst., Guangdoni Acad. Agric. Sci., Wushan, Guangzhou, China

Chen, Y. Z., S. S. Li, et al. (1993). Effect of light and antioxidants on fluorescence quenching of chlorophyll in maize leaves under water stress. Acta Botanica Sinica 35(Suppl.): 38-44. South China Inst. Botany, Academia Sinica, Guangzhou 510650, China

Chern, A., Z. Hosokawa, et al. (1993). Effects of node position on lateral bud outgrowth in the decapitated shoot of Ipomoea nil. Ohio Journal of Science 93(1): 11-13. Dep. Plant Biol., Ohio State Univ., Columbus, OH 43210, USA

Chien, S. H., G. Carmona, et al. (1993). Effect of phosphate rock sources on biological nitrogen fixation by soybean. Fertilizer Research 34(2): 153-159. Resources Management Res. Dev. Div., International Fertilizer Dev. Center, P.O. Box 2040, Muscle Shoals, AL 35662, USA

Chittapur, B. M., S. M. Hiremath, et al. (1993). Performance of grain maize (Zea mays) and forage cereal intercropping on black soils under rainfed condition. Indian Journal of Agronomy 38(4): 523-526. Dep. Agronomy, Coll. Agric., Univ. Agric. Sci., Dharwad, Karnataka 580 005, India

Chowdhury, M. K. and E. L. Rosario (1993). Nitrogen utilization efficiency as affected by component populations in maize-mungbean intercropping. Tropical Agriculture 70(3): 199-204. {a} On-Farm Res. Div., Bangladesh Agric. Res. Inst., Joydebpur, Gazipur 1701, Bangladesh

Chuck, G., T. Robbins, et al. (1993). Tagging and cloning of a petunia flower color gene with the maize transposable element activator. Plant Cell 5(4): 371-378. {a} DNA Plant Technol. Corporation, 6701 San Pablo Avenue, Oakland, CA 94608, USA

Ciamporova, M. (1993). Transfer cells in the vascular parenchyma of roots. Biologia Plantarum Prague 35(2): 261-266. Inst. Botany, Slovak Acad. Sci., Dubravska cesta 14, 842 23 Bratislava, Slovakia

Ciamporova, M. and I. Mistrik (1993). The ultrastructural response of root cells to stressful conditions. Environmental and Experimental Botany 33(1): 11-26. Inst. Botany, Slovak Academy Sciences, Dubravska Cesta 14, 84223 Bratislava, C.S.F.R

Clark, M. S., J. S. Parker, et al. (1993). Repeated DNA and heterochromatin structure in Rumex acetosa. Heredity 70(5): 527-536. {a} Sch. Biol. Sci., Queen Mary Westfield College, Mile End Rd., London E1 4NS, UK

Claude, P. P., A. F. MacKenzie, et al. (1993). Effect of spring ploughing and intercropping of red clover on the production of grain corn. Canadian Journal of Plant Science 73(1): 37-46. Dep. Ressources Renouvelables, Univ. McGill, Ste-Anne-de-Bellevue, Quebec, Canada H9X 1C0

Clay, D. E., C. E. Clapp, et al. (1993). Mineralization of nitrogen in fertilizer-acidified lime-amended soils. Biology and Fertility of Soils 15(4): 249-252. {a} Dep. Plant Sci., South Dakota State Univ., Brookings, SD 57007, USA

Clayton, H., J. Ranson, et al. (1993). Pyrophosphate: Fructose-6-phosphate 1-phosphotransferase and fructose-2,6-bisphosphate in the bundle sheath of maize leaves. Archives of Biochemistry and Biophysics 301(1): 151-157. {a} Dep. Plant Sci., Univ. Cambridge, Downing St., Cambridge CB2 3EA, UK

Cliquet, J. B. and G. R. Stewart (1993). Ammonia assimilation in Zea mays L. infected with a vesicular-arbuscular mycorrhizal fungus Glomus fasciculatum. Plant Physiology Rockville 101(3): 865-871. {a} Laboratoire de Physiol. Biochimie Vegetales, IRBA, Univ. de Caen, 14032 Caen Cedex, France

Close, T. J., R. D. Fenton, et al. (1993). A view of plant dehydrins using antibodies specific to the carboxy terminal peptide. Plant Molecular Biology 23(2): 279-286. Dep. Botany Plant Sci., Univ. California, Riverside, CA 92521, USA

Cocucci, M. and G. A. Sacchi (1993). Effects of rubidium and potassium on potassium efflux from subapical segments of maize roots. Plant Physiology and Biochemistry Montrouge 31(1): 9-16. {a} Dip. Fisiol. Piante Coltivate Chimica Agraria, Univ. degli Studi Milano, via Celoria 2, 20133 Milano, Italy

Coffman, C. B., J. R. Frank, et al. (1993). Crop responses to hexazinone, imazapyr, tebuthiuron, and triclopyr. Weed Technology 7(1): 140-145. {a} Res. Agron., USDA, ARS, Beltsville, MD 20705, USA

Cohen, Y., S. Takeuchi, et al. (1993). Accuracy of sap flow measurement using heat balance and heat pulse methods. Agronomy Journal 85(5): 1080-1086. {a} Inst. Soils and Water, ARO, The Volcani Cent., Bet-Dagan, Israel

Collins, G. G., X. Nie, et al. (1993). Heat shock increases chilling tolerance of mung bean hypocotyl tissue. Physiologia Plantarum 89(1): 117-124. {a} Dep. Horticulture, Viticulture and Oenol., Waite Campus, Univ. Adelaide, Glen Osmond, South Australia, 5064, Australia

Comer, J. A. and J. Brown (1993). Use of hollow trees as diurnal resting shelter by Lutzomyia shannoni (Diptera: Psychodidae) on Ossabaw Island, Georgia. Environmental Entomology 22(3): 613-617. {a} Southeastern Cooperative Wildlife Dis. Study, Dep. Parasitology, Coll. Vet. Med., Univ. Ga., Athens, GA 30602, USA

Cona, A., R. Federico, et al. (1993). A new and sensitive method for the assay of amine oxidase by measurement of the liberated peroxide. Biotechnology and Applied Biochemistry 17(1): 57-63. {a} Dep. Biol. Vegetale, Univ. 'La Sapienza', p. le Aldo Moro 5, 00185 Roma, Italy

Cone, J. W. and F. M. Engels (1993). The influence of ageing on cell wall composition and degradability of three maize genotypes. Animal Feed Science and Technology 40(4): 331-342. {a} Dep. Agron., Agric. Univ., Haarweg 333, NL-6709 RZ, Wageningen, Netherlands Antilles

Conlin, T. S. S. and V. J. Lieffers (1993). Anaerobic and aerobic carbon dioxide efflux rates from boreal forest conifer roots at low temperatures. Canadian Journal of Forest Research 23(5): 767-771. Dep. Forest Sci., Room 855, General Serv. Build., Univ. Alberta, Edmonton, Alta., Can. T6G 2H1

Connor, K. F. and L. E. Towill (1993). Pollen-handling protocol and hydration/dehydration characteristics of pollen for application to long-term storage. Euphytica 68(1-2): 77-84. {a} U.S. For. Serv., Sch. For. Resources Bldg., Miss. State Univ., Starkville, MS 39762, USA

Coop, L. B., B. A. Croft, et al. (1993). Model of corn earworm (Lepidoptera: Noctuidae) development, damage, and crop loss in sweet corn. Journal of Economic Entomology 86(3): 906-916. Dep. Entomol., Oreg. State Univ., 2046 Cordley Hall, Corvallis, OR 97331-2907, USA

Copeland, P. J., R. R. Allmaras, et al. (1993). Corn-soybean rotation effects on soil water depletion. Agronomy Journal 85(2): 203-210. {a} USDA-ARS, Soil Sci. Dep., Univ. Minn., Saint Paul, MN 55108, USA

Corazza, N. M. J., M. S. Pagliarini, et al. (1993). Effect of magnesium on chiasma frequency in maize Zea mays L. Arquivos de Biologia e Tecnologia Curitiba 36(4): 771-778. {a} Depto. Biologia Celulare Genetica, Universidade Estadual de Maringa, 87020-900, Maringa, PR, Brazil

Cornelius, P. L. (1993). Statistical tests and retention of terms in the additive main effects and multiplicative infection model for cultivar trials. Crop Science 33(6): 1186-1193. Dep. Agron., Univ. Kentucky, Lexington, KY 40546-0091, USA

Correll, J. C., T. E. Morelock, et al. (1993). Vegetative compatibility and virulence of the spinach anthracnose pathogen, Colletotrichum dematium. Plant Disease 77(7): 688-691. {a} Dep. Plant Pathol., Univ. Arkansas, Fayetteville, AR 72701, USA

Cottingham, C. K., K. K. Hatzios, et al. (1993). Comparative responses of selected corn (Zea mays L.) hybrids to EPTC and metolachlor. Weed Research 33(2): 161-170. Lab. Mol. Biol. Plant Stress, Dep. Plant Pathol. Physiol. Weed Sci., Virginia Polytechnic Inst. and State University, Blacksburg, VA 24061-0330, USA

Cowan, D. S. C., D. T. Clarkson, et al. (1993). A comparison between the ATPase and proton pumping activities of plasma membranes isolated from the stele and cortex of Zea mays roots. Journal of Experimental Botany 44(262): 983-989. {a} Dep. Biol., Biomedical Sci. Building, University Southampton, Southampton S09 3TU, UK

Cowan, D. S. C., D. T. Cooke, et al. (1993). Lipid and sterol composition of plasma membranes isolated from stele and cortex of maize roots. Journal of Experimental Botany 44(262): 991-994. {a} Dep. Biol., Biomedical Sci. Building, University Southampton, Southampton S09 3TU, UK

Cox, W. J., S. Kalonge, et al. (1993). Growth, yield, and quality of forage maize under different nitrogen management practices. Agronomy Journal 85(2): 341-347. {a} Dep. Soil, Crop and Atmospheric Sci., Cornell Univ., Ithaca, NY 14853

Cramer, M. D. and O. A. M. Lewis (1993). The influence of NO-3- and NH-4+ nutrition on the carbon and nitrogen partitioning characteristics of wheat (Triticum aestivum L.) and maize (Zea mays L.) plants. Plant and Soil 154(2): 289-300. {a} Cent. Desert Agrobiol., J. Blaustein Inst. Desert Res., Sede Boqer 84993, Israel

Cramer, M. D. and O. A. M. Lewis (1993). The influence of nitrate and ammonium nutrition on the growth of wheat (Triticum aestivum) and maize (Zea mays) plants. Annals of Botany London 72(4): 359-365. {a} Cent. Desert Agrobiol., J. Blaustein Inst. Desert Res., Sede Boqer 84993, Israel

Cramer, M. D. and O. A. M. Lewis (1993). The influence of nitrate and ammonium nutrition on the gas exchange characteristics of the roots of wheat (Triticum aestivum) and maize (Zea mays) plants. Annals of Botany London 72(1): 37-46. {a} Centre Desert Agrobiol., J. Blaustein Inst. Desert Res., Sede Boquer 84990, Israel

Cramer, M. D., O. A. M. Lewis, et al. (1993). Inorganic carbon fixation and metabolism in maize roots as affected by nitrate and ammonium nutrition. Physiologia Plantarum 89(3): 632-639. {a} Cent. Desert Agrobiol., J. Blaustein Inst. Desert Res., Sede Boqer 84993, Israel

Crossa, J., P. L. Cornelius, et al. (1993). A shifted multiplicative model cluster analysis from grouping environments without genotypic rank change. Theoretical and Applied Genetics 85(5): 577-586. Biometrics Statistics Unit, International Maize Wheat Improvement Cent., Apdo. Postal 6-641, 06600 Mexico D.F., Mexico

Croxall, J. P., D. R. Briggs, et al. (1993). Diving pattern and performance in the macaroni penguin Eudyptes chrysolophus. Journal of Zoology London 230(1): 31-47. {a} British Antarctic Surv., Nat. Environ. Res. Council, High Cross, Madingley Rd., Cambridge CB3 0ET, UK

Crozier, C. R. and L. D. King (1993). Corn root dry matter and nitrogen distribution as determined by sampling multiple soil cores around individual plants. Communications in Soil Science and Plant Analysis 24(11-12): 1127-1138. {a} Dep. Soil Sci., N.C. State Univ., Raleigh, NC 27695-7619, USA

Cuq, F., G. S. Herrmann, et al. (1993). Monocerin in Exserohilum turcicum isolates from maize and a study of its phytotoxicity. Phytochemistry Oxford 34(5): 1265-1270. {a} Lab. Biotechnol. Amelioration Plantes, E.N.S. Agronomique, 145 Ave. Muret, 31076 Toulouse Cedex, France

Dai, Z., M. S. B. Ku, et al. (1993). C-4 photosynthesis: The carbon dioxide concentrating mechanism and photorespiration. Plant Physiology Rockville 103(1): 83-90. {a} Dep. Bot., Wash. State Univ., Pullman, WA 99164-4238, USA

Daniel, G. (1993). Anther culture in rye: Improved plant regeneration using modified MS-media. Plant Breeding 110(3): 259-261. Bayerische Landesanstalt Bodenkultur Pflanzenbau, Voettinger Str. 38, W-8050 Freising, Germany

Danneberg, G., C. Latus, et al. (1993). Influence of vesicular-arbuscular mycorrhiza on phytohormone balances in maize (Zea mays L.). Journal of Plant Physiology 141(1): 33-39. {a} Botanisches Inst., Univ. Koeln, Gyrhofstr. 15, D-5000 Koeln 41, Germany

Danso, A. A. and P. Morgan (1993). Alley cropping maize (Zea -mays -var -Jeka) with cassia (Cassia siamea) in the Gambia: Crop production and soil fertility. Agroforestry Systems 21(2): 133-146. {a} Coll. Forestry Wildlife Range Sci., Univ. Idaho, Moscow, ID 83843, USA

Datta, N., P. R. Lafayette, et al. (1993). Isolation and characterization of three families of auxin down-regulated cDNA clones. Plant Molecular Biology 21(5): 859-869. {a} Dep. Botany, Univ. Georgia, Athens, GA 30602, USA

Dauvin, J. C., S. D. Bellan, et al. (1993). The genera Ophelia and Ampelisca from the Roscoff region: Examples of allopatry and sympatry in marine communities on loose substrate. Cahiers de Biologie Marine 34(1): 1-15. {a} Lab. de Biol. des Invertebres Marins et Malacologie, Museum National d'Histoire Naturelle, 57 rue Cuvier, 75231 Paris, France

Davis, E. S., P. K. Fay, et al. (1993). Persistence of spotted knapweed (Centaurea maculosa) seed in soil. Weed Science 41(1): 57-61. {a} CMARC, Moccasin, MT 59462, USA

De, A. M., E. Rea, et al. (1993). Influence of exogenous spermidine on potassium balance in maize seedlings. Journal of Plant Nutrition 16(12): 2555-2562. {a} Instituto di Biochimica ed Ecofisiologia Vegetali, Area della Ricerca, via Salaria Km 29, 00016 Monterotondo Scalo, Roma, Italy

De, B. L., R. Tsugeki, et al. (1993). Purification and characterization of aconitase isoforms from etiolated pumpkin cotyledons. Physiologia Plantarum 88(3): 485-492. {a} Dip. Biologia Piante Agrarie, Sez. Fisiologia Vegetale, Via Mariscoglio 34, I-56124 Pisa, Italy

De, B. P. J. and D. A. Maelzer (1993). Influence of high temperatures on the survival Rhopalosiphum padi (L.) (Hemiptera: Aphididae) in irrigated perennial grass pastures in South Australia. Australian Journal of Zoology 41(2): 123-132. Dep. Crop Protection, Waite Agricultural Res. Inst., Glen Osmond, SA 5064, Australia

De, C. C. R. and L. S. Saraiva (1993). An air drying technique for maize chromosomes without enzymatic maceration. Biotechnic and Histochemistry 68(3): 142-145. Dep. Biol., Federal Univ. Vicosa 36570 Vicosa, MG, Brazil

De, L. C., G. Granados, et al. (1993). Simultaneous improvement of downy mildew resistance and agronomic traits in tropical maize. Crop Science 33(1): 100-102. {a} CIMMYT Maize Program, Apdo. Aereo 6713, Cali, Colombia

De, P. R., C. Dominguez, et al. (1993). Triazine resistance in biotypes of Solanum nigrum and four Amaranthus species found in Spain. Weed Research 33(1): 17-24. Dep. Bioquimica Biologia Molecular, Escuela Tecnica Superior Ingenieros Agronomos Montes, Univ. Cordoba, Apartado Correos 3048, E-14080 Cordoba, Spain

De, P. R., E. Romera, et al. (1993). Effects of chloroacetamides and photosynthesis-inhibiting herbicides on growth and photosynthesis in sunflower (Helianthus annuus L.) and Amaranthus hybridus L. Weed Research 33(5): 369-374. {a} Grupp Investigacion Bioquimica Vegetal Agricola, ETS Ingenieros Agronomos Montes, Universidad Cordoba, Aptdo. 3048, 14080 Cordoba, Spain

De, V. E. J. I., K. C. Gross, et al. (1993). Degradation and solubilization of pectin by beta-galactosidases purified from avocado mesocarp. Physiologia Plantarum 87(3): 279-285. {a} USDA/ARS, Hortic. Crops Qual. Lab., Building 002, 10300 Baltimore Ave., Beltsville, MD 20705-2350, USA

Dekankova, K. and T. Jesko (1993). Root formation and growth in young maize plants. I. Dynamics of lateral root primordia formation and their emergence in individual morphological types of the roots. Biologia Bratislava 48(4): 459-463. Botanicky ustav SAV, Dubravska cesta 14, 842 23 Bratislava, Slovakia

Del, L. O. T., C. A. Gonzalez, et al. (1993). Antioxidant defences under hyperoxygenic and hyperosmotic conditions in leaves of two lines of maize with differential sensitivity to drought. Plant and Cell Physiology 34(7): 1023-1028. Laboratorio de Fisiologia Vegetal, Facultad de Ciencias Exactas, Fisicas and Naturales, Universidad Nacional de Cordoba, P.O. Box 395, Cordoba, Argentina

Dernoeden, P. H., N. E. Christians, et al. (1993). Creeping bentgrass rooting as influenced by dithiopyr. Agronomy Journal 85(3): 560-563. {a} Dep. Agron., Univ. Md., College Park, MD 20742, USA

Devi, M. T. and A. S. Raghavendra (1993). Partial reduction in activities of photorespiratory enzymes in C-3-C-4 intermediates of Alternanthera and Parthenium. Journal of Experimental Botany 44(261): 779-784. {a} Sch. Life Sci., Univ. Hyderabad, Hyderabad 500 134, India

Dey, I., T. Szegletes, et al. (1993). Fish erythrocytes as a tool to study temperature-induced responses in plasma membranes. Lipids 28(8): 743-746. {a} Inst. Biochemistry, Biological Res. Centre, Hungarian Academy Sciences, H-6701 Szeged, P.O. Box 521, Hungary

Dey, S. K., U. K. Bansal, et al. (1993). Use of natural additives: A new dimension in improving plant regeneration from callus culture of maize (Zea mays L.). Annals of Biology Ludhiana 9(1): 38-41. Dep. Plant Breeding, Punjab Agric. Univ., Ludhiana 141 004, India

Dey, S. K., B. S. Dhillon, et al. (1993). Resistance to multibiotic stresses in maize (Zea mays L.). Journal of Entomological Research New Delhi 17(2): 75-79. Dep. Plant Breeding, Punjab Agricultural University, Ludhiana 141004, India

Dhillon, S. K. and K. S. Dhillon (1993). Uptake and utilization of zinc by maize (Zea mays L.) from 65Zn labelled green manure. Journal of Nuclear Agriculture and Biology 22(3-4): 189-194. Dep. Soils, Punjab Agric. Univ., Ludhiana-141 004, India

Di, M. G. and D. Tricoli (1993). Effect of water deficit on photosynthesis and electron transport in wheat grown in a natural environment. Journal of Plant Physiology 142(2): 156-160. Instituto di Biochimica ed Ecofisiologia Vegetali, Consiglio Nazionale delle Riecerche, Area della Ricerca, I-00185 Monterotondo Scalo, Roma, Italy

Di, T. J. M., A. E. Stowe, et al. (1993). Inhibition of lipid synthesis by diclofop-methyl is age dependent in roots of oat and corn. Pesticide Biochemistry and Physiology 45(3): 210-219. {a} Dep. Soil Crop Atmospheric Sciences, Section Plant Biology, Cornell Univ., Ithaca, NY 14853, USA

Dickson, T., R. L. Aitken, et al. (1993). Prediction of nitrogen fertiliser requirements of maize in subtropical Queensland. Australian Journal of Experimental Agriculture 33(1): 53-58. {a} Queensl. Dep. Primary Industries, PO Box 23, Kingaroy, Queensl. 4610, Australia

Dinkelaker, B., G. Hahn, et al. (1993). Non-destructive methods for demonstrating chemical changes in the rhizosphere: II. Application of methods. Plant and Soil 155-156: 71-74. Inst. Plant Nutrition, Univ. Hohenheim, D-70593 Stuttgart, Germany

Ditomaso, J. M., J. J. Hart, et al. (1993). Compartmentation analysis of paraquat fluxes in maize roots as a means of estimating the rate of vacuolar accumulation and translocation to shoots. Plant Physiology Rockville 102(2): 467-472. {a} Dep. Soil Crop and Atmospheric Sci., Cornell Univ., Ithaca, NY 14853, USA

Dobbels, A. F. and G. Kapusta (1993). Postemergence weed control in corn (Zea mays) with nicosulfuron combinations. Weed Technology 7(4): 844-850. Dep. Plant Soil Sci., Southern Illinois Univ., Carbondale, IL 62901, USA

Doebley, J. and A. Stec (1993). Inheritance of the morphological differences between maize and teosinte: Comparison of results for two F-2 populations. Genetics 134(2): 559-570. Dep. Plant Biol., Univ. Minnesota, St. Paul, MN 55108, USA

Doehlert, D. C., T. M. Kuo, et al. (1993). Characteristics of carbohydrate metabolism in sweet corn (sugary-1) endosperms. Journal of the American Society for Horticultural Science 118(5): 661-666. {a} U.S. Dep. Agric., Agriculture Research Serv., National Center Agric. Utilization Research, Phytoproducts Research Unit, 1815 North University St., Peoria, IL 61604, USA

Dolfini, S., G. Consonni, et al. (1993). Antiparallel expression of the sense and antisense transcripts of maize alpha-tubulin genes. Molecular and General Genetics 241(1-2): 161-169. {a} Dipartimento Genetica Biol. Microrganismi, Universita degli Studi di Milano, Via Celoria 26, 20133 I-Milano, Italy

Domingues, C. M. and R. M. Peralta (1993). Production of amylase by soil fungi and partial biochemical characterization of amylase of a selected strain (Aspergillus fumigatus Fresenius). Canadian Journal of Microbiology 39(7): 681-685. {a} Dep. Bioquimica, Universidade Estadual Maringa CEP 87.020-900, Maringa, Brazil

Dotray, P. A., J. M. Ditomaso, et al. (1993). Effects of acetyl-coenzyme A carboxylase inhibitors on root cell transmembrane electric potentials in graminicide-tolerant and -susceptible corn (Zea mays L.). Plant Physiology Rockville 103(3): 919-924. {a} Plant Sci. Res. Unit, Agric. Res. Serv., United States Dep. Agric., St. Paul, MN 55108, USA

Dotray, P. A., L. C. Marshall, et al. (1993). Herbicide tolerance and weed control in sethoxydim-tolerant corn (Zea mays). Weed Science 41(2): 213-217. Dep. Agron. Plant Gen., Univ. Minn., St. Paul, MN 55108, USA

Douds, D. D., Jr., R. R. Janke, et al. (1993). VAM fungus spore populations and colonization of roots of maize and soybean under conventional and low-input sustainable agriculture. Agriculture Ecosystems and Environment 43(3-4): 325-335. {a} USDA-ARS ERRC, 600 E. Mermaid Lane, Philadelphia, PA 19118, USA

Douglass, S. K., J. A. Juvik, et al. (1993). Sweet corn seedling emergence and variation in kernel carbohydrate reserves. Seed Science and Technology 21(2): 433-445. {a} Dep. Hortic., Univ. Ill., Urbana, IL 61801, USA

Drepper, W. J., B. Hau, et al. (1993). Systemic infection of downy mildew on maize in Thailand and the effect of weather factors. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz 100(6): 634-644. {a} Phytopathologie Angewandte Entomologie des WZ Tropeninstitut der Justus-Liebig-Universitaet Giessen, Bismarckstr. 16, D-35390 Giessen, Germany

Drong, R. F. and J. L. Slightom (1993). Analyses of genes that encode the 15-kDa zein protein of maize: Identification of potential gene regulatory elements. Gene Amsterdam 123(2): 245-248. {a} Molecular Biology Unit 7242, Upjohn Co., Kalamazoo, MI 49007, USA

Drury, C. F., D. J. McKenney, et al. (1993). Influence of tillage on nitrate loss in surface runoff and tile drainage. Soil Science Society of America Journal 57(3): 797-802. {a} Res. Station, Agric. Canada, Harrow, ON, Can. N0R 1G0

Dubert, F., I. Marcinska, et al. (1993). The effectiveness of vernalization of immature embryos of winter wheat var. Grana as related to age and exogenous phytohormones. Journal of Agronomy and Crop Science 170(4): 234-242. Dep. Plant Physiology, Polish Academy Sciences, Podluzna 3, 30-239 Krakow, Poland

Duke, S. O. (1993). Tentoxin effects on variable fluorescence and P515 electrochromic absorbance changes in tentoxin-sensitive and -resistant plant species. Plant Science Limerick 90(2): 119-126. USDA/ARS, Southen Weed Sci. Lab., P.O. Box 350, Stoneville, MS 38776, USA

Dupille, E., C. Rombaldi, et al. (1993). Purification, properties and partial amino acid sequence of 1-aminocyclopropane-1-carboxylic acid oxidase from apple fruits. Planta Heidelberg 190(1): 65-70. {a} ENSAT, 145 Avenue de Muret, F-31076 Toulouse Cedex, France

Dupuis, I. and G. M. Pace (1993). Gene transfer to maize male reproductive structure by particle bombardment of tassel primordia. Plant Cell Reports 12(11): 607-611. {a} CIBA-GEIGY Agric. Biotechnol., P.O. Box 12257, Research Triangle Park, NC 27709-2257, USA

Dupuis, I. and G. M. Pace (1993). Factors affecting in vitro maturation of isolated maize microspores. Plant Cell Reports 12(10): 564-568. {a} Agricultural Biotechnol. Res. Unit, CIBA-GEIGY Corporation, PO Box 12257, Research Triangle Park, NC 27709-2257, USA

Durieux, R. P., W. A. Jackson, et al. (1993). Inhibition of nitrate uptake by aluminium in maize. Plant and Soil 151(1): 97-104. {a} Dep. Agronomy, University Vermont, Burlington, VT 05405, USA

Durieux, R. P., E. J. Kamprath, et al. (1993). Yield contribution of apical and subapical ears in prolific and nonprolific corn. Agronomy Journal 85(3): 606-610. {a} Plant Soil Sci. Dep., Univ. Vt., Burlington, VT 05405, USA

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

Eagles, H. A. and A. K. Hardacre (1993). Inbreeding depression and other genetic effects in populations of maize containing highland tropical germplasm. Plant Breeding 110(3): 229-236. {a} Victorian Inst. Dryland Agric., Natimuk Road, Private Bag 260, Horsham, Victoria 3401, Australia

Echeverria, E. and G. Salerno (1993). Intracellular localization of sucrose-phosphate phosphatase in photosynthetic cells of lettuce (Lactuca sativa). Physiologia Plantarum 88(3): 434-438. {a} Fundacion Para Investigaciones, Biologicas Aplicadas, Casilla Correo 1348, 7600 Mar Plata, Argentina

Eckel, R. V. W. and E. P. Lampert (1993). Spatial and temporal analysis of tobacco etch virus distribution and its relationship to aphid (Homoptera: Aphididae) vectors in flue-cured tobacco. Journal of Economic Entomology 86(5): 1534-1545. {a} USDA-ARS-SAA, Crops Res. Lab., P.O. Box 1168, Oxford, NC 27565, USA

Eckelkamp, C., B. Ehmann, et al. (1993). Wound-induced systemic accumulation of a transcript coding for a Bowman-Birk trypsin inhibitor-related protein in maize (Zea mays L.) seedlings. FEBS Federation of European Biochemical Societies Letters 323(1-2): 73-76. {a} Biologisches Institut II der Universitaet, Schaenzlestrasse 1, D-7800 Freiburg, Germany

Edmeades, G. O., J. Bolanos, et al. (1993). Causes for silk delay in a lowland tropical maize population. Crop Science 33(5): 1029-1035. {a} CIMMYT, Apdo. Postal 6-641, 06600 Mexico, Mexico

Edmeades, G. O. and H. R. Lafitte (1993). Defoliation and plant density effects on maize selected for reduced plant height. Agronomy Journal 85(4): 850-857. {a} Int. Maize Wheat Improvement Ctr., Lisboa 27, Apdo. Postal 6-641, 06600 Mexico D.F., Mexico

Edwards, W. M., G. B. Triplett, et al. (1993). Division S-6-soil and water management and conservation. Soil Science Society of America Journal 57(4): 1051-1055. {a} USDA-ARS North Appalachian Experimental Watershed, P.O. Box 478, Coshocton, OH 43812

Efe, N. and O. Ozbay (1993). The effects of one of the air originated pollutant (SO-2) on the morphological and the anatomical changes of some plants. Turkish Journal of Botany 17(4): 207-214. {a} Ataturk Universitesi K.K. Egitim Fak. Biyoloji Anabilim Dalt Erzurum, Turkey

Eghball, B. and J. W. Maranville (1993). Correction of BA 95081292. Root development and nitrogen influx of corn genotypes grown under combined drought and nitrogen stresses. Correction of abstract. Erratum published in AGRON J Vol. 85. Iss. 2. 1993. p. v. Agronomy Journal 85(1): 147-152. {a} Dep. Agron., 102C KCR, Univ. Nebr., Lincoln, NE 68583, USA

Eghball, B. and J. W. Maranville (1993). Root development and nitrogen influx of corn genotypes grown under combined drought and nitrogen stresses. Agronomy Journal 85(1): 147-152. {a} Dep. Agronomy, 102C KCR, Univ. Nebraska, Lincoln, NE 68583

Eghball, B., L. N. Mielke, et al. (1993). Fractal description of soil fragmentation for various tillage methods and crop sequence. Soil Science Society of America Journal 57(5): 1337-1341. {a} USDA-ARS, Dep. Agronomy, Univ. Nebraska, Lincoln, NE 68583, USA

Eghball, B., J. R. Settimi, et al. (1993). Fractal analysis for morphological description of corn roots under nitrogen stress. Agronomy Journal 85(2): 287-289. {a} Dep. Agron., Univ. Nebraska, Lincoln, NE 68583

Egli, M. A., B. G. Gengenbach, et al. (1993). Characterization of maize acetyl-coenzyme A carboxylase. Plant Physiology Rockville 101(2): 499-506. {a} Dep. Plant Genetics, Univ. Minn., St. Paul, MN 55108, USA

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

El, B. A. A., F. M. M. El, et al. (1993). Mode of inheritance of zinc accumulation in maize. Journal of Plant Nutrition 16(10): 2043-2053. {a} Botany Dep., Natl. Res. Cent., Cairo, Egypt

Elliott, G. A. and K. L. Regan (1993). Use of reflectance measurements to estimate early cereal biomass production on sandplain soils. Australian Journal of Experimental Agriculture 33(2): 179-183. {a} Sch. Agric., Univ. Western Australia, Nedlands, W.A. 6009, Australia

Ellis, J. L. and G. B. Garner (1993). Supplementation of an ammoniated wheat-straw-alfalfa hay diet. Journal of Production Agriculture 6(2): 287-290. {a} Agric. Dep., Ft. Hays State Univ., Hays, KS 67601, USA

Emmermann, M., H. P. Braun, et al. (1993). The two high molecular weight subunits of cytochrome c reductase from potato are immunologically related to the mitochondrial processing enhancing protein. Biochimica et Biophysica Acta 1142(3): 306-310. {a} Inst. Genbiologische Forschung Berlin GmbH, Ihnestrasse 63, W-1000 Berlin 33, Germany

Emons, A. M. C. and D. H. De (1993). Origin and development of embryo and bud primordia during maturation of embryogenic calli of Zea mays. Canadian Journal of Botany 71(10): 1349-1356. {a} Dep. Plant Cytol. Morphol., Wageningen Agric. Univ., Arboretumlaan 4, 6703 BD Wageningen, Netherlands

Emons, A. M. C., M. M. Mulder, et al. (1993). Pyrolysis mass spectrometry of developmental stages of maize somatic embryos. Acta Botanica Neerlandica 42(3): 319-339. {a} Dep. Plant Cytol. and Morphol., Wageningen Agric. Univ., Arboretumlaan 4, 6703 BD Wageningen, Netherlands

Emons, A. M. C., D. A. Samallo, et al. (1993). The influence of sucrose, mannitol, L-proline, abscisic acid and gibberellic acid on the maturation of somatic embryos of Zea mays L. from suspension cultures. Journal of Plant Physiology 142(5): 597-604. Dep. Plant Cytology Morphology, Wageningen Agricultural Univ., Arboretumlaan 4, 6703 BD Wageningen, Netherlands

Engels, C. and H. Marschner (1993). Influence of the form of nitrogen supply on root uptake and translocation of cations in the xylem exudate of maize (Zea mays L.). Journal of Experimental Botany 44(268): 1695-1701. {a} Institut Pflanzenernaehrung, Universitaet Hohenheim, 70593 Stuttgart, Germany

Ennos, A. R., M. J. Crook, et al. (1993). The anchorage mechanics of maize, Zea mays. Journal of Experimental Botany 44(258): 147-153. {a} Dep. Environmental Biol., Univ. Manchester, Manchester M13 9PL, UK

Ephrath, J. E., R. F. Wang, et al. (1993). Shading effects on soybean and corn. Biotronics 22: 15-24. {a} Cent. Desert Agrobiol., J. Blaustein Inst. Desert Res., Ben-Gurion Univ. Negev, Sede Boqer 84990, Israel

Erdei, L. and E. Taleisnik (1993). Changes in water relation parameters under osmotic and salt stresses in maize and sorghum. Physiologia Plantarum 89(2): 381-387. {a} Inst. Biophysics, Biol. Res. Center, Hungarian Academy Sci., PO Box 521, H-6701 Szeged, Hungary

Ervio, R. and J. Sippola (1993). Micronutrient concentration of Italian ryegrass (Lolium multiflorum L.) grown on different soils in a pot experiment. Agricultural Science in Finland 2(2): 141-148. Agric. Res. Cent. Finland, Inst. Soils and Environment, FIN-31600 Jokioinen, Finland

Eskridge, K. M., O. S. Smith, et al. (1993). Comparing test cultivars using reliability functions of test-check difference from on-farm trials. Theoretical and Applied Genetics 87(1-2): 60-64. {a} Dep. Biometry, Univ. Nebraska, Lincoln, NE 68583-0712, USA

Espinas, M. L. and M. Carballo (1993). Pulsed-field gel electrophoresis analysis of higher-order chromatin structures of Zea mays: Highly methylated DNA in the 50 kb chromatin structure. Plant Molecular Biology 21(5): 847-857. Unitat Recerca Biomedica, Planta 14, Hosp. Materno-Infantil Vall D'Hebron, Pg. Vall D'Hebron S/N, 08035 Barcelona, Spain

Espinoza, V. D., R. M. Quintero, et al. (1993). Fitting plants to soil through mycorrhizal fungi: Plant nutrition in host-endophyte combinations evaluated by the diagnosis and recommendation integrated system. Biology and Fertility of Soils 15(2): 96-102. {a} Hortic. Crops Res. Lab., USDA-ARS, 3420 N.W. Orchard Ave., Corvallis, OR 97330, USA

Estepa, M. A., M. C. Cuadrado, et al. (1993). Odd-even effect of rye B-chromosomes on homoeologous pairing in wheat-rye hybrids. Caryologia 46(1): 17-23. Dep. Genetica, Fac. Ciencias Biol., Universidad Complutense, 28040-Madrid, Spain

Etzion, O. and P. M. Neumann (1993). Screening for phyto-toxic contaminants in an industrial source of nutrients intended for foliar and root fertilization. Journal of Plant Nutrition 16(8): 1385-1394. {a} Plant Physiol. Lab., Fac. Agric. Eng., Technion I.I.T., Haifa 32000, Israel

Evbuomwan, F. O., A. O. Akinyemiju, et al. (1993). Emergence and seedling growth bioassays for the detection of imazaquin residue in a humid tropical soil. Plant Protection Quarterly 8(4): 114-117. {a} Inst. Ecol., Obafemi Awolowo Univ., Ile-Ife, Nigeria

Evert, R. F. and W. A. Russin (1993). Structurally, phloem unloading in the maize leaf cannot be symplastic. American Journal of Botany 80(11): 1310-1317. {a} Dep. Botany Plant Pathol., 430 Lincoln Dr., Univ. Wisconsin, Madison, WI 53706-1381, USA

Exner, D. N. and R. M. Cruse (1993). Interseeded forage legume potential as winter ground cover, nitrogen source, and competitor. Journal of Production Agriculture 6(2): 226-231. {a} Dep. Agron., Iowa State Univ., Ames, IA 50011, USA

Faehr, S., M. M. Messmer, et al. (1993). Graphical genotype of maize inbred B86 revealed by RFLPs. Plant Breeding 110(1): 29-34. {a} Inst. Pflanzenzuchtung, Saatgutforschung Populationsgenetik, Univ. Hohenheim, P.O. Box 700562, W-7000 Stuttgart 70, Germany

Fairley, G. K. A. and S. M. Assmann (1993). Comparison of potassium-channel activation and deactivation in guard cells from a dicotyledon (Vicia faba L.) and a graminaceous monocotyledon (Zea mays). Planta Heidelberg 189(3): 410-419. {a} Harvard Biological Laboratories, 16 Divinity Avenue, Cambridge, MA 02138, USA

Farago, S., K. Kreuz, et al. (1993). Deceased glutathione levels enhance the susceptibility of maize seedlings to metolachlor. Pesticide Biochemistry and Physiology 47(3): 199-205. {a} Pflanzenphysiologisches Inst., Univ. Bern, Altenbergrain 21, 3013 Bern, Switzerland

Fatmi, A., C. G. Poneleit, et al. (1993). Variability of recombination frequencies in the Iowa Stiff Stalk Synthetic (Zea mays L.). Theoretical and Applied Genetics 86(7): 859-866. {a} Dep. Agron., Univ. Ky., Lexington, KY 40546, USA

Fedenko, E. P. and K. K. Kasumov (1993). Effect of G-pp(NH)-p on basal and photoinduced activities of cyclic AMP phosphodiesterase in maize sprouts. Izvestiya Akademii Nauk Seriya Biologicheskaya Moscow(1): 133-137. A.N. Bakh Inst. Biochem., Acad. Sci. Russ., Moscow, Russia

Feil, B., R. Thiraporn, et al. (1993). In vitro nitrate reductase activity of laboratory-grown seedlings as an indirect selection criterion for maize. Crop Science 33(6): 1280-1286. {a} Inst. Plant Sci., ETH, Universitaetstr. 2, CH-8092 Zurich, Switzerland

Fennoy, S. L. and S. J. Bailey (1993). Synonymous codon usage in Zea mays L. nuclear genes is varied by levels of C and G-ending codons. Nucleic Acids Research 21(23): 5294-5300. {a} Dep. Botany and Plant Sci., Univ. Calif., Riverside, CA 92521-0124, USA

Fernandes, P. A., M. Sousa, et al. (1993). Flocculation of Kluyveromyces marxianus in induced by a temperature upshift. Yeast 9(8): 859-866. {a} Dep. Biol. Molecular, Instituto Ciencias Biomedicas Abel Salazar, Univ. Porto, Porto, Portugal

Ferretti, M., R. Ghisi, et al. (1993). Effect of cadmium on photosynthesis and enzymes of photosynthetic sulphate and nitrate assimilation pathways in maize (Zea mays L.). Photosynthetica Prague 29(1): 49-54. {a} Dep. Agricultural Biotechnology, Univ. Padova, Via Gradenigo 6, 35131 Padova, Italy

Fischer, A. J., E. Granados, et al. (1993). Propanil resistance in populations of junglerice (Echinochloa colona) in Colombian rice fields. Weed Science 41(2): 201-206. Centro Int. Agric. Tropical, A. A. 6713, Cali, Colombia

Fischer, C., H. Luethen, et al. (1993). Initial transient growth inhibition in maize coleoptiles following auxin application. Journal of Plant Physiology 141(1): 88-92. {a} Inst. fuer Biol. III Universitaet, Schanzlestr. 1, D-7800 Freiburg i. Br., French Guiana

Fisher, P. J., S. A. Broad, et al. (1993). Retention and spread of a genetically engineered pseudomonad in seeds and plants of Zea mays L.: A preliminary study. New Phytologist 124(1): 101-106. Dep. Biological Sciences, Univ. Exeter, Exeter, Devon, UK

Florijn, P. J., K. J. A. De, et al. (1993). Phytochelatin concentrations and binding state of Cd in roots of maize genotypes differing in shoot/root Cd partitioning. Journal of Plant Physiology 142(5): 537-542. {a} Dep. Soil Science Plant Nutrition, Wageningen Agricultural Univ., P.O. Box 8005, 6700 EC Wageningen, Netherlands

Florijn, P. J., J. A. Nelemans, et al. (1993). Evaluation of structural and physiological plant characteristics in relation to the distribution of cadmium in maize inbred lines. Plant and Soil 154(1): 103-109. Dep. Soil Science Plant Nutrition, Wageningen Agric. University, PO Box 8005, 6700 EC Wageningen, Netherlands

Florijn, P. J. and B. M. L. Van (1993). Uptake and distribution of cadmium in maize inbred lines. Plant and Soil 150(1): 25-32. Dep. Soil Sci. and Plant Nutrition, Wageningen Agricultural Univ., PO Box 8005, 6700 EC Wageningen, Netherlands

Foltz, J. C., J. G. Lee, et al. (1993). Farm-level economic and environmental impacts of eastern corn belt cropping systems. Journal of Production Agriculture 6(2): 290-296. {a} Dep. Agric. Economics, Purdue Univ., West Lafayette, IN 47907, USA

Forcella, F., O. K. Eradat, et al. (1993). Application of weed seedbank ecology to low-input crop management. Ecological Applications 3(1): 74-83. North Central Soil Conservation Res. Lab., USDA Agric. Res. Serv., Morris, MN 56267, USA

Fortin, M. C. (1993). Soil temperature, soil water, and no-till corn development following in-row residue removal. Agronomy Journal 85(3): 571-576. Agric. Can. Res. Branch, Centre Land Biol. Resources Res. Ottawa, ON K1A 0C6, Canada

Fowler, S. M., C. A. Watson, et al. (1993). Nitrogen phosphorus and potassium on organic farms: Herbage and cereal production, purchases and sales. Journal of Agricultural Science 120(3): 353-360. {a} Dep. Agric. Sci., Univ. Coll. Wales, Aberystwyth, Dyfed SY23 3DD, UK

Fox, J. F. (1993). Size and sex allocation in monoecious woody plants. Oecologia Heidelberg 94(1): 110-113. Ints. Arctic Biol., Univ. Alaska Fairbanks, Fairbanks, AK 99775-0180, USA

Fox, R. H. and W. P. Piekielek (1993). Management and urease inhibitor effects on nitrogen use efficiency in no-till corn. Journal of Production Agriculture 6(2): 195-200. {a} 116 ASI Build., Penn State Univ., University Park, PA 16802, USAS

Fox, R. H., J. S. Shenk, et al. (1993). Comparison of near-infrared spectroscopy and other soil nitrogen availability quick tests for corn. Agronomy Journal 85(5): 1049-1053. {a} Dep. Agronomy, 116 Agric. Sci. and Ind. Bldg., Pennsylvania State Univ., University Park, PA 16802, USA

Francis, D. D., J. W. Doran, et al. (1993). Immobilization and uptake of nitrogen applied to corn as starter fertilizer. Soil Science Society of America Journal 57(4): 1023-1026. {a} USDA-ARAS, 119 Keim Hall, Univ. Nebraska, Lincoln, NE 68583, USA

Francis, D. D., J. S. Schepers, et al. (1993). Post-anthesis nitrogen loss from corn. Agronomy Journal 85(3): 659-663. {a} USDA-ARS 119 Keim Hill, Univ. Nebr., Lincoln, NE 68583, USA

Frascaroli, E. and R. Tuberosa (1993). Effect of abscisic acid on pollen germination and tube growth of maize genotypes. Plant Breeding 110(3): 250-254. Inst. Agron., Univ. Bologna, Via Filippo Re 6, I-40126 Bologna, Italy

Frazier, T. L., S. J. Nissen, et al. (1993). The influence of terbufos on primisulfuron absorption and fate in corn (Zea mays). Weed Science 41(4): 664-668. {a} Dep. Agron., Univ. Nebraska, Lincoln, NE 68583-0915, USA

Frensch, J. and T. C. Hsiao (1993). Hydraulic propagation of pressure along immature and mature xylem vessels of roots of Zea mays measured by pressure-probe techniques. Planta Heidelberg 190(2): 263-270. {a} Dep. Land, Air Water Res., University California, Davis, CA 95616, USA

Frerichs, R., R. Brentlinger, et al. (1993). One-row machine for the harvest of corn stover. Agronomy Journal 85(5): 1096-1097. {a} Northeast Res. and Ext. Cent., Univ. Nebraska, Box 111, Concord, NE 68787, USA

Frey, B. and H. Schuepp (1993). Acquisition of nitrogen by external hyphae of arbuscular mycorrhizal fungi associated with Zea mays L. New Phytologist 124(2): 221-230. {a} Dep. Phytopathol. Soil Microbiol., Swiss Federal Res. Stn., CH-8820 Wadenswil, Switzerland

Freymark, P. J., M. Lee, et al. (1993). Quantitative and qualitative trait loci affecting host-plant response to Exserohilum turcicum in maize (Zea mays L.). Theoretical and Applied Genetics 87(5): 537-544. {a} Dep. Agronomy, Iowa State Univ., Ames, IA 50011, USA

Fritz, R., C. Lanen, et al. (1993). Effects of various inhibitors including carboxin on Botrytis cinerea mitochondria isolated from mycelium. Agronomie Paris 13(3): 225-230. {a} INRA, Lab. Phytopharmacie, 78000 Versailles, France

Fuerst, E. P., G. P. Irzyk, et al. (1993). Partial characterization of glutathione S-transferase isozymes induced by the herbicide safener benoxacor in maize. Plant Physiology Rockville 102(3): 795-802. {a} Dep. Crop Soil Sci., Washington State Univ., Pullman, WA 99164-6420, USA

Fukuda, A., S. Yamatani, et al. (1993). Decrease of leaf water potential and leaf injury of tea plant (Thea sinensis L.) subject to cold winter wind in Sanin region of Japan. Japanese Journal of Crop Science 62(2): 188-192. Fac. Agric., Shimane Univ., Nishikawatsu-cho, Matsue 690, Japan

Fulchieri, M., C. Lucangeli, et al. (1993). Inoculation with Azospirillum lipoferum affects growth and gibberellin status of corn seeding roots. Plant and Cell Physiology 34(8): 1305-1309. Lab. Fisiologia Vegetal, Dep. de Ciencias Naturales, Universidad Nacional de Rio Cuarto, 5800 Rio Cuarto, Argentina

Gacheru, E. N., G. M. Kamau, et al. (1993). Effect of land preparation and weeding on maize (Zea mays) grain yields in the coastal region of Kenya. International Journal of Pest Management 39(1): 57-60. {a} ICRAF, KARI Regional Res. Centre, Embu, P.O. Box 27, Embu, Kenya

Gallo, K. P., C. S. T. Daughtry, et al. (1993). Errors in measuring absorbed radiation and computing crop radiation use efficiency. Agronomy Journal 85(6): 1222-1228. {a} NOAA/NESDIS, Satellite Res. Lab., Washington, DC 20233, USA

Galtier, N., C. H. Foyer, et al. (1993). Effects of elevated sucrose-phosphate synthase activity on photosynthesis, assimilate partitioning, and growth in tomato (Lycopersicon esculentum var. UC82B). Plant Physiology Rockville 101(2): 535-543. {a} Lab. Metabolisme, Inst. Natl. de la Recherche Agronomique, Route de St-Cyr, 78026 Versailles, Cedex, France

Gamon, J. A., C. B. Field, et al. (1993). Functional patterns in an annual grassland during an AVIRIS overflight. Remote Sensing of Environment 44(2-3): 239-253. {a} Dep. Biol., California State Univ., 5151 State Univ. Dr., Los Angeles, CA 90032-8201, USA

Gardiner, J. M., E. H. Coe, et al. (1993). Development of a core RFLP map in maize using an immortalized F-2 population. Genetics 134(3): 917-930. {a} Dep. Agron., Univ. Mo.-Columbia, Columbia, MO 65211, USA

Garica, F. C., D. J. E. Sanchez, et al. (1993). Induction and maintenance of embryogenic cultures of Zea mays L. (Poaceae). Phyton Buenos Aires 54(1): 1-6. {a} Dep. Bioquimica, Div. Estudios Posgrado, Fac. Quimica, Universidad Nacional Autonoma Mexico, Ciudad Universitaria, CP 04510 Mexico, DF

Gaut, B. S. and M. T. Clegg (1993). Nucleotide polymorphism in the Adh1 locus of pearl millet (Pennisetum glaucum) (Poaceae). Genetics 135(4): 1091-1097. Dep. Botany Plant Sci., Univ. California, Riverside, Riverside, CA 92521, USA

Gaut, B. S. and M. T. Clegg (1993). Molecular evolution of the Adh1 locus in the genus Zea. Proceedings of the National Academy of Sciences of the United States of America 90(11): 5095-5099. {a} Dep. Bot. Plant Sci., University California, Riverside, CA 92521, USA

Gavin, O., P. E. Pilet, et al. (1993). Tonoplast localization of a calmodulin-stimulated Ca-2+ -pump from maize roots. Plant Science Limerick 92(2): 143-150. {a} Inst. Plant Biol. Physiol., Univ. Lausanne, Biol. Building, CH-1015 Lausanne, Switzerland

Gavito, M. E. and L. Varela (1993). Seasonal dynamics of mycorrhizal associations in maize fields under low input agriculture. Agriculture Ecosystems and Environment 45(3-4): 275-282. {a} Dep. Microbiol., Escuela Nac. Ciencas Biologicas, Inst. Politecnico Nacional, Apdo. postal 26-393, Mexico 02860, Mexico

Gaynor, J. D. and A. S. Hamill (1993). Timing of atrazine application for control of quackgrass (Agropyron repens). Phytoprotection 74(2): 89-99. {a} Agriculture Can., Res. Station, Harrow, ON N0R 1G0, Canada

Geissler, A. E. and G. F. Katekar (1993). Phytotropin-induced root phototropism in maize. Physiologia Plantarum 89(2): 335-340. {a} CSIRO, Div. Plant Industry, GPO Box 1600, Canberra, ACT 2601, Australia

Gemici, M. (1993). Effects of cytozyme crop plus on Triticum durum (Wheat). Turkish Journal of Botany 17(3): 133-139. Ege Univ., Fac. Sci., Dep. Biol. 35100 Bornova-Izmir-Turkey

Gentry, L. E. and F. E. Below (1993). Maize productivity as influenced by form and availability of nitrogen. Crop Science 33(3): 491-497. {a} Dep. Agron., 1102 S. Goodwin Ave., Univ. Ill., Urbana, IL 61801, USA

Georgieva, E. I., R. G. Lopez, et al. (1993). Maize embryo germination: I. Cell cycle analysis. Planta Heidelberg 192(1): 118-124. {a} Dep. Microbiol., Univ. Innsb., Fritz-Pregl-Str. 3, A-6020 Innsbruck, Austria

Georgieva, E. I., R. G. Lopez, et al. (1993). Maize embryo germination: II. Proteins related to nuclear proto-oncogene- and tumor suppressor gene-products. Planta Heidelberg 192(1): 125-129. {a} Dep. Microbiol., Univ. Innsbruck, Fritz-Pregl-Str. 3, A-6020 Innsbruck, Austria

Gerdes, J. T. and W. F. Tracy (1993). Pedigree diversity within the Lancaster Surecrop heterotic group of maize. Crop Science 33(2): 334-337. {a} Dep. Agron., Univ. Wisconsin-Madison, Madison, WI 53706, USA

Gerendas, J., R. G. Ratcliffe, et al. (1993). Relationship between intracellular pH and N metabolism in maize (Zea mays L.) roots. Plant and Soil 155-156: 167-170. {a} Inst. Plant Nutrition Soil Sci., Christian-Albrechts-Univ., Olshausenstrasse 40, D-2300 Kiel, Germany

Ghiena, R. C., M. Schulz, et al. (1993). Influence of horizontal clinostat rotation on starch content and starch degrading enzymes in leaves of Vicia faba. Plant Physiology and Biochemistry Montrouge 31(4): 515-522. Institut fuer Ladwirtschaftliche Botanik, Univ. Bonn, Meckenheimer Allee 176, 5300 Bonn 1, Germany

Ghosh, S., B. R. Glick, et al. (1993). Effect of wound shock on protein synthesis in leaves of C-3 and C-4 plants. Plant and Cell Physiology 34(3): 503-506. Dep. Biol., Univ. Waterloo, Waterloo, ON N2L 3G1, Canada

Ghuman, B. S. and C. B. Singh (1993). Solar radiation and potential crop production at Ludhiana. Indian Journal of Agricultural Sciences 63(4): 225-228. {a} Dep. Soils, Punjab Agric. Univ., Ludhiana 141 004, India

Gibeaut, D. M. and N. C. Carpita (1993). Synthesis of (1 fwdarw 3), (1 fwdarw 4)-beta-D-glucan in the Golgi apparatus of maize coleoptiles. Proceedings of the National Academy of Sciences of the United States of America 90(9): 3850-3854. {a} Dep. Botany and Plant Pathol., Purdue Univ., West Lafayette, IN 47907-1155, USA

Gibson, T. J., J. D. Thompson, et al. (1993). Proposed structure for the DNA-binding domain of the helix-loop-helix family of eukaryotic gene regulatory proteins. Protein Engineering 6(1): 41-50. European Mol. Biol. Lab., Postfach 102209, Meyerhofstrasse 1, W-6900 Heidelberg, Germany

Gill, M. S., D. S. Rana, et al. (1993). Response of maize (Zea mays), wheat (Triticum aestivum) and gobhi sarson (Brassica napus subsp. oleifera var. annua) to balanced fertilization and azotobacter inoculation in subhumid Punjab. Indian Journal of Agronomy 38(3): 463-465. Dep. Agron., Punjab Agric. Univ., Ludhiana 141 004, India

Ginsburg, S. and P. Matile (1993). Identification of catabolites of chlorophyll-porphyrin in senescent rape cotyledons. Plant Physiology Rockville 102(2): 521-527. {a} Dep. Plant Biol., Univ. Zurich, Zollikerstrasse 107, CH-8008 Zurich, Switzerland

Girardin, P., A. Chavagnat, et al. (1993). Determination of seed characteristics of maize (Zea mays L.) by use of X-ray radiography. Seed Science and Technology 21(3): 545-551. {a} Inst. Natl. Rech. Agronomique, Lab. Agronomie, BP 507, 68021 Colmar Cedex, France

Giunta, F., R. Motzo, et al. (1993). Effect of drought on yield and yield components of durum wheat and triticale in a Mediterranean environment. Field Crops Research 33(4): 399-409. {a} Istituto di Agronomia e Coltivazioni Erbacee Facolta di Scienze Agrarie, Universita di Sassari Via E. De Nicola, 07100 Sassari, Italy

Glenn, S. and N. G. Anderson (1993). Hemp dogbane (Apocynum cannabinum) and wild blackberry (Rubus allegheniensis) control in no-tillage corn (Zea mays). Weed Technology 7(1): 47-51. {a} Agron. Dep., Univ. Md., College Park, MD, USA

Godfrey, L. D., L. J. Meinke, et al. (1993). Affects of larval injury by western corn rootworm (Coleoptera: Chrysomelidae) on gas exchange parameters of field corn. Journal of Economic Entomology 86(5): 1546-1556. {a} Dep. Entomol., Univ. California, Davis, CA 95616, USA

Godfrey, L. D., L. J. Meinke, et al. (1993). Vegetative and reproductive biomass accumulation in field corn: Response to root injury by western corn rootworm (Coleoptera: Chrysomelidae). Journal of Economic Entomology 86(5): 1557-1573. {a} Dep. Entomol., Univ. California, Davis, CA 95616, USA

Godlewska, E. A. (1993). Comparison of the nitrate reductases obtained from corn, barley, rye and spinach. Acta Physiologiae Plantarum 15(1): 31-37. Dep. Biochemistry, Warsaw Agric. Univ., Rakowiecka 26/30, 02-528 Warsaw, Poland

Golden, K. D., M. A. John, et al. (1993). Beta-Galactosidase from Coffea arabica and its role in fruit ripening. Phytochemistry Oxford 34(2): 355-360. {a} Dep. Biochemistry, Univ. West Indies, Mona, Kingston 7, Jamaica

Goldman, I. L., T. R. Rocheford, et al. (1993). Quantitative trait loci influencing protein and starch concentration in the Illinois long term selection maize strains. Theoretical and Applied Genetics 87(1-2): 217-224. {a} Dep. Agronomy, Univ. Illinois, 1102 S. Goodwin, Urbana, IL 61801, USA

Golenberg, E. M., M. T. Clegg, et al. (1993). Evolution of a noncoding region of the chloroplast genome. Molecular Phylogenetics and Evolution 2(1): 52-64. {a} Dep. Biol. Sci., Wayne State Univ., Detroit, MI 48202, USA

Golino, D. A. (1993). Potential interactions between rootstocks and grapevine latent viruses. American Journal of Enology and Viticulture 44(2): 148-152. USDA, Agric. Res. Services, Dep. Plant Pathol., Univ. California, Davis, CA 95616, USA

Gollany, H. T. and T. E. Schumacher (1993). Combined use of colorimetric and microelectrode methods for evaluating rhizosphere pH. Plant and Soil 154(2): 151-159. Plant Sci. Dep., South Dakota State Univ., Brookings, SD 57007, USA

Gonzalez, M. M. B., M. Lacuesta, et al. (1993). Comparative study of the inhibition of photosynthesis caused by aminooxyacetic acid and phosphinothricin in Zea mays. Journal of Plant Physiology 142(2): 161-166. {a} Departamento de Biologia Vegetal y Ecologia, Facultad de Ciencias, Universidad del Pais Vasco/Euskal Herriko Unibertsitatea, Apdo. 644, 48080 Bilbao, Spain

Gonzalez, P. R., M. L. Salas, et al. (1993). Nitrogen use efficiency by winter barley under different climatic conditions. Journal of Plant Nutrition 16(7): 1249-1261. {a} Centro Ciencias Medioambientales, CSIC, 28006 Madrid, Spain

Goodfellow, V. J., L. P. Solomonson, et al. (1993). Characterization of a maize root proteinase. Plant Physiology Rockville 101(2): 415-419. {a} Botany Dep., Univ. Guelph, Guelph, Ont. N1G 2W1, Canada

Goovaerts, P. and C. N. Chiang (1993). Temporal persistence of spatial patterns for mineralizable nitrogen and selected soil properties. Soil Science Society of America Journal 57(2): 372-381. {a} Unit Biometry, Faculty Agronomic Sciences, Catholic Univ. Louvain, Place Croix du Sud, 2 B-1348 Louvain-la-Neuve, Belgium

Gordon, W. B., D. H. Rickerl, et al. (1993). Tillage and nitrogen effects on growth, nitrogen content, and yield of corn. Communications in Soil Science and Plant Analysis 24(5-6): 421-441. {a} Irrigation Experimental Field, Dep. Agron., Kansas State Univ., Courtland, KS 66939

Gordon, W. B., D. W. Whitney, et al. (1993). Nitrogen management in furrow irrigated, ridge-tilled corn. Journal of Production Agriculture 6(2): 213-217. {a} Dep. Agron., Kansas State Univ., Manhattan, KS 66506-5504, USA

Goto, M., T. Sato, et al. (1993). Variations in anatomy and ultraviolet microspectrometry between normal and brown midrib mutant maizes possessing different rumen degradabilities. Journal of the Science of Food and Agriculture 63(4): 427-434. {a} Fac. Bioresources, Mie Univ., Tsu 514, Japan

Goulden, M. G. and D. C. Baulcombe (1993). Functionally homologous host components recognize potato virus X in Gomphrena globosa and potato. Plant Cell 5(8): 921-930. {a} Sainsbury Lab., Norwich Res. Park, Colney, Norwich NR4 7UH, UK

Goulding, K. W. T., C. P. Webster, et al. (1993). Denitrification losses of nitrogen fertilizer applied to winter wheat following ley and arable rotations as estimated by acetylene inhibition and nitrogen-15 balance. Journal of Soil Science 44(1): 63-72. Soil Sci. Dep., AFRC Inst. Arable Crops Res., Rothamsted Exp. Stn., Harpenden, Hertfordshire AL5 2JQ, UK

Graham, M. J., J. A. Hawk, et al. (1993). Evaluation of Iowa stiff stalk synthetic for resistance to gray leaf spot. Plant Disease 77(4): 382-385. {a} Dep. Plant Soil Sci., Univ. Del., Newark, DE 19717-1303

Granados, G., S. Pandey, et al. (1993). Response to selection for tolerance to acid soils in a tropical maize population. Crop Science 33(5): 936-940. {a} CIMMYT, A.A. 6713, Cali, Colombia

Grandi, P., V. Doye, et al. (1993). Purification of NSP1 reveals complex formation with "GLFG" nucleoporins and a novel nuclear pore protein NIC96. EMBO European Molecular Biology Organization Journal 12(8): 3061-3071. EMBL, Postfach 1022.09, Meyerhofstrasse 1, D-6900 Heidelberg, Germany

Granot, D. and M. Snyder (1993). Carbon source induces growth of stationary phase yeast cells, independent of carbon source metabolism. Yeast 9(5): 465-479. Dep. Biol., Yale Univ., New Haven, CT 06511

Grant, S. R., S. Hardenack, et al. (1993). Functional cis-element sequence requirements for suppression of gene expression by the TNPA protein of the Zea mays transposon En/Spm. Molecular and General Genetics 241(1-2): 153-160. {a} Max-Planck Inst. fuer Zuechtungsforschung, Carl-von-Linne-Weg 10, D-50829 Cologne 30, Germany

Granval, P., R. Aliaga, et al. (1993). The impact of agricultural management on earthworms (Lumbricidae), common snipe (Gallinago gallinago) and the environmental value of grasslands in the Dives marshes (Calvados). Gibier Faune Sauvage 10(March): 59-73. {a} Avifaune migratrice O.N.C., Lab. Zooecologie du Sol, I.N.R.A./C.N.R.S., C.E.P.E., B.P. 5051, F-34033 Montpellier Cedex, France

Grasser, K. D., T. Wohlfarth, et al. (1993). Comparative analysis of chromosomal HMG proteins from monocotyledons and dicotyledons. Plant Molecular Biology 23(3): 619-625. {a} Inst. fuer Biol. III, Albert-Ludwigs-Univ. Freiburg, Schaenzlestr. 1, 7800 Freiburg, Germany

Green, J. M. and J. H. Green (1993). Surfactant structure and concentration strongly affect rimsulfuron activity. Weed Technology 7(3): 633-640. Weed Sci. and Formulation Sci., Agric. Prod., Stine-Haskell Res. Cent., DuPont Co., Newark, DE 19714, USA

Green, J. M. and J. F. Ulrich (1993). Response of corn (Zea mays L.) inbreds and hybrids to sulfonylurea herbicides. Weed Science 41(3): 508-516. Weed Sci. Crop Genet. Agric. Prod., Stine-Haskell Res. Cent., DuPont Co., Newark, DE 19714, USA

Gregory, R. D. and M. E. J. Woolhouse (1993). Quantification of parasite aggregation: A simulation study. Acta Tropica 54(2): 131-139. {a} British Trust Ornithol., National Centre Ornithol., Nunnery, Thetford, Norfolk IP24 2PU, UK

Griesbach, R. J. (1993). Characterization of the flavonoids from Petunia X hydrida flowers expressing the A1 gene of Zea mays. Hortscience 28(6): 659-660. Florist Nursery Crops, U.S. Dep. Agric., Beltsville, MD 20705, USA

Griesbach, R. J. and T. M. Klein (1993). In situ genetic complementation of a flower color mutant in Doritis Pulcherrima (Orchidaceae). Lindleyana 8(4): 223-226. {a} Florist Nursery Crops, USDA, ARS, BARC-W, Beltsville, MD 20705, USA

Griess, E. A., K. D. Grasser, et al. (1993). Repeat units from a maize rDNA external spacer region exhibit DNA curvature and interact with high-mobility-group proteins. Planta Heidelberg 191(4): 524-531. {a} Inst. fuer Biol. III, Albert-Ludwigs-Univ. Freiburg, Schaenzlestrasse 1, D-79104 Freiburg, Germany

Grineva, G. M. and T. V. Bragina (1993). Structural and functional parameters of the development of adaptation to flooding in maize. Fiziologiya Rastenii Moscow 40(4): 662-667. K.A. Timiryazev Inst. Plant Physiol., Acad. Sci. Russ., Moscow, Russia

Gronwald, J. W., S. W. Jourdan, et al. (1993). Effect of ammonium sulfate on absorption of imazethapyr by quackgrass (Elytrigia repens) and maize (Zea mays) cell suspension cultures. Weed Science 41(3): 325-334. Plant Physiol., Plant Sci. Res. Unit, Agric. Res. Serv., U.S. Dep. Agric., Univ. Minnesota, St. Paul, MN 55108, USA

Guan, H. P. and J. Preiss (1993). Differentiation of the properties of the branching isozymes from maize (Zea mays). Plant Physiology Rockville 102(4): 1269-1273. {a} Dep. Biochem., Mich. State Univ., East Lansing, MI 48824, USA

Guei, R. G. and C. E. Wassom (1993). Genetics of osmotic adjustment in breeding maize for drought tolerance. Heredity 71(4): 436-441. {a} WARDA 01 BP 2551, Bouake 01, Cote D'Ivoire, AFR

Habben, J. E., A. W. Kirleis, et al. (1993). The origin of lysine-containing proteins in opaque-2 maize endosperm. Plant Molecular Biology 23(4): 825-838. {a} Dep. Plant Sci., Univ. Arizona, Tucson, AZ 85721, USA

Hadas, A., S. Feigenbaum, et al. (1993). Decomposition of nitrogen-15-labeled wheat and cellulose in soil: Modeling tracer dynamics. Soil Science Society of America Journal 57(4): 996-1001. {a} Inst. Soils Water, ARO, Volcani Cent., Bet Dagan 50250, Israel

Hager, A. and M. Brich (1993). Blue-light-induced phosphorylation of a plasma-membrane protein from phototropically sensitive tips of maize coleoptiles. Planta Heidelberg 189(4): 567-576. {a} Botanisches Inst., Univ. Tuebingen, Auf der Morgenstelle 1, W-7400 Tuebingen, Germany

Hager, A., M. Brich, et al. (1993). Redox dependence of the blue-light-induced phosphorylation of a 100-kDa protein on isolated plasma membranes from tips of coleoptiles. Planta Heidelberg 190(1): 120-126. Botanisches Institut, Universitaet Tuebingen, Auf der Morgenstelle 1, W-7400 Tuebingen, Germany

Hajos, N. M. and A. H. Nagy (1993). Study of sporophytic-gametophytic expression of alcohol dehydrogenase 1 gene in tetraploid corn (Zea mays L.). Cereal Research Communications 21(1): 97-103. {a} Univ. Agricultural Sciences, Dep. Genetics Plant Breeding, 2103 Godollo, Hungary

Hallman, G. J. and R. J. Knight, Jr. (1993). Hypocala andremona (Lepidoptera: Noctuidae) development on eight species of Diospyros (Ebenaceae). Florida Entomologist 76(3): 461-465. United States Dep. Agric., Agric. Res. Serv. 13601 Old Cutler Rd., Miami, FL 33158, USA

Hamilton, M. A., D. T. Westermann, et al. (1993). Factors affecting zinc uptake in cropping systems. Soil Science Society of America Journal 57(5): 1310-1315. {a} INEL, EG and G ID, PO Box 1625, Idaho Falls, ID 83415-2203, USA

Han, C. D., W. Patrie, et al. (1993). Aberrations in plastid transcripts and deficiency of plastid DNA in striped and albino mutants in maize. Planta Heidelberg 191(4): 552-563. {a} Plant Genetics Res. Unit, Agric. Res. Serv., Columbia, MO 65211, USA

Han, Y. J. and D. M. Han (1993). Isolation and characterization of null pigment mutant in Aspergillus nidulans. Korean Journal of Genetics 15(1): 1-10. Dep. Mol. Biol., Wonkwang Univ., ChonBuk 570-749

Hanson, J. C., E. Lichtenberg, et al. (1993). Profitability of no-tillage corn following a hairy vetch cover crop. Journal of Production Agriculture 6(3): 432-437. {a} Dep. Agric. Resource Economics, Univ. Md., College Park, MD 20742, USA

Hardarson, G. (1993). Methods for enhancing symbiotic nitrogen fixation. Plant and Soil 152(1): 1-17. FAO/IAEA Programme, Soil Sci. Unit, Agency's Lab., A-2444 Seibersdorf, Austria

Hart, J. J., J. M. Ditomaso, et al. (1993). Characterization of paraquat transport in protoplasts from maize (Zea mays L.) suspension cells. Plant Physiology Rockville 103(3): 963-969. {a} Dep. Soil, Crop Atmospheric Sci., U.S. Plant Soil Nutr. Lab., Cornell Univ., Ithaca, NY 14853, USA

Hartman, G. L. and Y. H. Huang (1993). Pathogenicity and virulence of Phytophthora capsici isolates from Taiwan on tomatoes and other selected hosts. Plant Disease 77(6): 588-591. {a} Agric. Res. Serv., U.S. Dep. Agric., Univ. Ill., Urbana, IL 61801, USA

Hartzler, R. G. and G. W. Roth (1993). Effect of prior year's weed control on herbicide effectiveness in corn (Zea mays). Weed Technology 7(3): 611-614. {a} Dep. Agron., Iowa State Univ., IA 50011, USA

Hartzler, R. G., K. B. D. Van, et al. (1993). On-farm evaluation of mechanical and chemical weed management practices in corn (Zea mays). Weed Technology 7(4): 1001-1004. Dep. Agron., Iowa State Univ., Ames, IA 50011, USA

Hashmi, G., S. Hashmi, et al. (1993). Resistance of Zea mays to Heterodera zeae. Journal of Nematology 25(4 Suppl.): 820-823. {a} Dep. Bot., Univ. Md., College Park, MD 20742-5815, USA

Hashmi, S., L. R. Krusberg, et al. (1993). Reproduction of Heterodera zeae and its suppression of corn plant growth as affected by temperature. Journal of Nematology 25(1): 55-58. Dep. Bot., University Maryland, College Park, MD 20742-5815, USA

Haugen, K. K., N. G. Juma, et al. (1993). Nitrogen partitioning and cycling in barley-soil systems under conventional and zero tillage in Central Alberta. Canadian Journal of Soil Science 73(2): 183-196. Dep. Soil Sci., 4-42 Earth Sci. Building, Univ. Alberta, Edmonton, Alberta T6G 2E3, Canada

Havis, R. N. and E. E. Alberts (1993). Nutrient leaching from field-decomposed corn and soybean residue under stimulated rainfall. Soil Science Society of America Journal 57(1): 211-218. {a} Colo. State Univ., P.O. Box E, Fort Collins, CO 80522, USA

He, G. Y., E. Korbuly, et al. (1993). High frequency callus formation and regeneration of fertile plants from haploid cell suspensions derived from anther culture in wheat. Plant Science Limerick 90(1): 81-87. {a} Cell Biol. Dep., Agric. Res. Inst. of the Hungarian Acad. Sci., H-2462 Martonvasar, Hungary

Hedin, P. A., F. M. Davis, et al. (1993). 2-Hydroxy-4, 7-dimethoxy-1,4-benzoxazin-3-one (N-O-ME-dimboa), a possible toxic factor in corn to the southwestern corn borer. Journal of Chemical Ecology 19(3): 531-542. {a} Crop Sci. Res. Lab., USDA-ARS, Mississippi State, MS 39762-5367

Hedin, P. A., W. P. Williams, et al. (1993). Arrestant responses of southwestern corn borer larvae to free amino acids: Structure-activity relationships. Journal of Chemical Ecology 19(2): 301-311. {a} Crop Science Res. Lab., U.S. Dep. of Agric., Agricultural Res. Service, Mississippi State, Mississippi 39762-5367

Held, B. M., H. Wang, et al. (1993). An mRNA putatively coding for an O-methyltransferase accumulates preferentially in maize roots and is located predominantly in the region of the endodermis. Plant Physiology Rockville 102(3): 1001-1008. {a} Dep. Bot., Iowa State Univ., Ames, IA 50011-1020, USA

Helms, T. C. (1993). Selection for yield and stability among oat lines. Crop Science 33(3): 423-426. Dep. Crop and Weed Sci., North Dakota State Univ., Fargo, ND 58105, USA

Hergert, G. W., N. L. Klocke, et al. (1993). Cropping systems for stretching limited irrigation supplies. Journal of Production Agriculture 6(4): 520-529. {a} Univ. Nebr. West Central Res. and Ext. Cent., North Platte, NE 69101, USA

Hesler, L. S. and G. R. Sutter (1993). Effect of trap color, volatile attractants, and type to toxic bait dispenser or captures of adult corn rootworm beetles (Coleoptera: Chrysomelidae). Environmental Entomology 22(4): 743-750. Northern Grain Insects Res. Lab., Agric. Res. Serv., U.S. Dep. Agric., Brookings, SD 57006, USA

Hesse, T., C. Garbers, et al. (1993). Two members of the ERabp gene family are expressed differentially in reproductive organs but to similar levels in the coleoptile of maize. Plant Molecular Biology 23(1): 57-66. {a} Max-Planck-Inst. Zuechtungsforschung, Carl Von Linne Weg 10, 50829 D Koeln, Germany

Heun, M. and T. Helentjaris (1993). Inheritance of RAPDs in F-1 hybrids of corn. Theoretical and Applied Genetics 85(8): 961-968. {a} Dep. Plant Sci., Univ. Ariz., Tucson, AZ 85721, USA

Heusch, B. (1993). Soil erosion in catchments and experimental plots on Java (Indonesia) and Luzon (The Philippines). Soil Technology 6(2): 191-202. Saint-Mury, La Tour, F-38240 Meylan, France

Higley, P. M., D. C. McGee, et al. (1993). Development of methodology for non-destructive assay of bacteria, fungi and viruses in seeds of large-seeded field crops. Seed Science and Technology 21(2): 399-409. {a} Dep. Plant Pathol., Univ. Nebr., Lincoln, NE 68583, USA

Hilgendorf, F. and M. Boettger (1993). Influence of temperature on proton secretion and hexacyanoferrate(III) reduction of Zea mays L. roots. Plant Physiology Rockville 101(4): 1349-1353. {a} Univ. Hamburg, Inst. Allgemeine Botanik, Ohnhorststrasse 18, W-2000 Hamburg 52, Germany

Hill, R. L. (1993). Tillage and wheel traffic effects on runoff and sediment losses from crop interrows. Soil Science Society of America Journal 57(2): 476-480. Dep. Agronomy, H.J. Patterson Hall, Univ. Maryland, College Park, MD 20742, USA

Hipskind, J. D., J. R. Vincent, et al. (1993). Partial purification and characterization of 4-hydroxycinnamic acid: CoA ligase from maize leaves infected with Bipolaris maydis. Physiological and Molecular Plant Pathology 43(5): 365-377. {a} Dep. Bot. Plant Pathol., Purdue University, West Lafayette, IN 47907-1155, USA

Ho, I. (1993). Analysis of nutrient uptake by six species of vesicular-arbuscular mycorrhizal fungi in Zea mays L. Indian Journal of Mycology and Plant Pathology 23(1): 64-69. USDA, For. Serv., Pac. Northwest Res. Stn., For. Sci. Lab., 3200 S.W. Jefferson Way, Corvallis, OR 97331, USA

Hoesche, J. A. and R. J. Berzborn (1993). Primary structure, deduced from cDNA, secondary structure analysis and conclusions concerning interaction surfaces of the delta subunit of the photosynthetic ATP-synthase (EC 3.6.1.34) from millet (Sorghum bicolor) and maize (Zea mays). Biochimica et Biophysica Acta 1142(3): 293-305. {a} Lehrstuhl Biochemie Pflanzen, Fakultaet Biologie, Ruhr-Univ. Bochum, P.O. Box 102148, D-4630 Bochum 1, Germany

Hoff, R. J. and G. I. McDonald (1993). Variation of virulence of white pine blister rust. European Journal of Forest Pathology 23(2): 103-109. Intermountain Res. Stn., 1221 South Main, Moscow, ID 83843, USA

Hoffman, M. L., E. E. Regnier, et al. (1993). Weed and corn (Zea mays) responses to a hairy vetch (Vicia villosa) cover crop. Weed Technology 7(3): 594-599. {a} Dep. Agron., Ohio State Univ., Columbus, OH 43210, USA

Hohmann, U. (1993). Stabilization of tetraploid triticale with chromosomes from Triticum aestivum (ABD)(ABD)RR (2n equals 28). Theoretical and Applied Genetics 86(2-3): 356-364. Dep. Plant Pathol., Kans. State Univ., Throckmorton Hall, Manhattan, KS 66506-5502, USA

Hohn, T. M., A. E. Desjardins, et al. (1993). Analysis of Tox5 gene expression in Gibberella pulicaris strains with different trichothecene production phenotypes. Applied and Environmental Microbiology 59(8): 2359-2363. {a} Mycotoxin Res. Unit, National Center Agric. Utilization Res., Agric. Res. Service, U.S. Dep. Agric., Peoria, IL 61604, USA

Hong, C. K. (1993). The influences of cultural environment and artificial shading at silking state on physiological and morphological traits associated with occurrence of barren ear in corn (Zea mays L.). RDA Journal of Agricultural Science Upland and Industrial Crops 35(1): 134-158. Kangwon Provincial Rural Development Administration, Chuncheon, South Korea

Hood, E. E., J. M. Murphy, et al. (1993). Molecular characterization of maize extensin expression. Plant Molecular Biology 23(4): 685-695. Dep. Biol., Utah State Univ., Logan, UT 84322-5305, USA

Horio, T., K. Yoshida, et al. (1993). A phenolic amide from roots of Chenopodium album. Phytochemistry Oxford 33(4): 807-808. Dep. Agric. Chem., Fac. Agric., Hokkaido Univ., Kita-ku, Sapporo 060, Japan

Horner, H. T., V. L. Hall, et al. (1993). Isolation, sorting, and characterization of uni- and binucleate tapetal protoplasts from anthers of normal and Texas cytoplasmic male-sterile Zea mays L. Protoplasma 173(1-2): 48-57. {a} Dep. Botany, Iowa State Univ., Ames, Iowa 50011-1020, USA

Hsing, Y. I. C., J. M. Widholm, et al. (1993). Lipid metabolism in maize tissue-culture. Journal of Plant Physiology 142(3): 360-365. {a} Dep. Agron., Plant Physiol. and Genetics Res. Unit, US Dep. Agric., Agric. Res. Serv., Univ. Ill. at Urbana, Urbana, IL 61801, USA

Hsu, A. F. C., S. Rodenbach, et al. (1993). Separation of tonoplast vesicles enriched in ATPase and pyrophosphatase activity from maize roots. Journal of Plant Nutrition 16(7): 1179-1192. {a} U.S. Dep. Agric., Agric. Res. Serv., Eastern Regional Res. Center, 600 E. Mermaid Lane, Philadelphia, PA 19118, USA

Hu, C. H., S. T. Dong, et al. (1993). Studies on the relationship between canopy apparent photosynthesis rate and grain yield in high yielding summer corn (Zea mays L.). Acta Agronomica Sinica 19(1): 63-69. Shandong Agric. Univ., Taian 271018

Hugdahl, J. D. and L. C. Morejohn (1993). Rapid and reversible high-affinity binding of the dinitroaniline herbicide oryzalin to tubulin from Zea mays L. Plant Physiology Rockville 102(3): 725-740. {a} Dep. Botany, Univ. Tex., Austin, TX 78713, USA

Huiet, L., J. H. Tsai, et al. (1993). Maize stripe virus RNA5 is of negative polarity an encodes as highly basis protein. Journal of General Virology 74(4): 549-554. {a} Centre Eng. Plants Resistance Against Pathogens, 1930 5th St., Univ. Calif., Davis, CA 95616, USA

Hulesch, A., F. Dutka, et al. (1993). Safening of vernolate in corn (Zea mays L.). Cereal Research Communications 21(1): 105-110. {a} Central Res. Inst. Chemistry, Hungarian Academy Sciences, H-1525 P.O. Box 17, Budapest, Hungary

Hung, P. E., V. A. Fritz, et al. (1993). Treating shrunken-2 sweet corn seed with fungicide infused via acetone. Hortscience 28(4): 340-342. {a} Southern Experiment Station, Waseca, MN 56903, USA

Hunt, R. E., J. C. Parr, et al. (1993). Influence of leafhopper (Homoptera: Cicadellidae) gender and female mating status on plant disease dynamics within a simple habitat. Environmental Entomology 22(1): 109-115. Dep. Entomol., University Kentucky, Lexington, KY 40546, USA

Hunte, C., M. Janssen, et al. (1993). Age-dependent modifications and further localization of the CX 26-like protein from Vicia faba L. Botanica Acta 106(3): 207-212. {a} Inst. fuer Landwirtschaftliche Bot., Universitaet Bonn, Meckenheimer Allee 176, D-53115 Bonn, Germany

Hussein, M. Y. and N. A. Samad (1993). Intercropping chilli with maize or brinjal to suppress populations of Aphis gossypii Glov., and transmission of chilli viruses. International Journal of Pest Management 39(2): 216-222. {a} Plant Protection Dep., Univ. Pertanian Malaysia, Serdag, Selangor, Malaysia

Hutchinson, P. J., P. J. Shea, et al. (1993). Immunoassay to detect enhanced carbamothioate degradation in soil. Weed Technology 7(2): 396-403. {a} Agriculturalist, American Cynamid Co., 2458 N. Archery Way, Meridian, ID 83642

Hutchison, W. D. (1993). Dose-mortality response of European corn borer (Lepidoptera: Pyralidae) third-instar larvae to selected insecticides. Canadian Entomologist 125(6): 1137-1139. Dep. Entomology, Univ. Minn., St. Paul, MN 55108, USA

Ignatov, N. V., O. B. Belyaeva, et al. (1993). Possible role of flavin components of protochlorophyllide-protein complexes in primary processes of protochlorophyllide photoreduction in etiolated plant leaves. Photosynthetica Prague 29(2): 235-241. Biol. Dep., Moscow State Univ., Moscow 119899, Russia

Irlbeck, N. A., J. R. Russell, et al. (1993). Nutritive value and ensiling characteristics of maize stover as influenced by hybrid maturity and generation, plant density and harvest data. Animal Feed Science and Technology 41(1): 51-64. {a} Dep. Animal Sci., Colo. State Univ., Fort Collins, CO 80523, USA

Irzyk, G. P. and P. Fuerst (1993). Purification and characterization of a glutathione S-transferase from benoxacor-treated maize (Zea mays). Plant Physiology Rockville 102(3): 803-810. {a} Dep. Crop Soil Sci., Wash. State Univ., Pullman, WA 99164-6420, USA

Ishikawa, H. and M. L. Evans (1993). The role of the distal elongation zone in the response of maize roots to auxin and gravity. Plant Physiology Rockville 102(4): 1203-1210. {a} Dep. Plant Biol., Ohio State Univ., Columbus, OH 43210-1293, USA

Ishitani, M., K. Arakawa, et al. (1993). Betaine aldehyde dehydrogenase in the Gramineae: Levels in leaves of both betaine-accumulating and nonaccumulating cereal plants. Plant and Cell Physiology 34(3): 493-495. {a} Res. Inst. Biochem. Regulation, Sch. Agric. Sci., Nagoya Univ., Chikusa, Nagoya 464-01, Japan

Itabari, J. K., P. J. Gregory, et al. (1993). Effects of temperature, soil water status and depth of planting on germination and emergence of maize (Zea mays) adapted to semi-arid eastern Kenya. Experimental Agriculture 29(3): 351-364. {a} CSIRO Dryland Crops Soils Res. Unit, Private Bag, PO Wembley, 6014, Western Aust., Australia

Jablonkai, I. and K. K. Hatzios (1993). In vitro conjugation of chloroacetanilide herbicides and atrazine with thiols and contribution of nonenzymatic conjugation to their glutathione-mediated metabolism in corn. Journal of Agricultural and Food Chemistry 41(10): 1736-1742. {a} Lab. Mol. Biol. Plant Stress, Dep. Plant Pathol., Physiol. and Weed Sci., Virginia Polytechnic Inst. State Univ., Blacksburg, VA 24061-0330, USA

Jacks, T. J. and O. Hinojosa (1993). Superoxide radicals in intact tissues and in dimethyl sulphoxide-based extracts. Phytochemistry Oxford 33(3): 563-568. Southern Regional Res. Cent., U.S. Dep. Agric., P.O. Box 19867, New Orleans, LA 70179, USA

Jackson, M. B. and K. C. Hall (1993). Polyamine content and action in roots of Zea mays L. in relation to aerenchyma development. Annals of Botany London 72(6): 569-575. Dep. Agric. Sci., Univ. Bristol, Long Ashton Res. Stn., Bristol BS18 9AF, UK

Jackson, W. A., S. Chaillou, et al. (1993). Endogenous ammonium generation in maize roots and its relationship to other ammonium fluxes. Journal of Experimental Botany 44(261): 731-739. {a} Dep. Soil Sci., North Carolina State Univ., Raleigh, NC 27695-7619, USA

Jacob, J. and D. W. Lawlor (1993). In vivo photosynthetic electron transport does not limit photosynthetic capacity in phosphate-deficient sunflower and maize leaves. Plant Cell and Environment 16(7): 785-795. {a} Smithsonian Environmental Res. Cent., PO Box 28, Edgewater, MD 21037, USA

Jacobson, D. M. and D. M. Anderson (1993). Growth and grazing rates of Protoperidinium hirobis Abe, a thecate heterotrophic dinoflagellate. Journal of Plankton Research 15(7): 723-736. {a} Bigelow Lab. for Ocean Sci., West Boothbay Harbor, ME 04575, USA

Jaehne, A., C. Fritzen, et al. (1993). Chalcone synthase and flavonoid products in primary-leaf tissues of rye and maize. Planta Heidelberg 189(1): 39-46. {a} Botanisches Inst., Univ. Koeln, Gyrhofstrasse 15, W-5000 Koeln 41, Germany

Jain, P. M. and N. S. Solanki (1993). Effect of preceding crops on fertilizer requirement of opium poppy (Papaver somniferum). Indian Journal of Agronomy 38(1): 105-106. Agric. Res. Station, Arjia, Bhilwara 311 001, India

Jain, R. C. and P. M. Jain (1993). Effect of preceding rainy-season crops on yield and nutrient uptake by wheat (Triticum aestivum) under different levels of nitrogen. Indian Journal of Agronomy 38(4): 643-644. Dep. Agronomy, Rajasthan Coll. Agric., Rajasthan Agric. Univ, Udaipur 313 001, India

Jajoo, A. and S. Bharti (1993). Effect of anions on photosystem 1-mediated electron transport in spinach chloroplasts. Journal of Experimental Botany 44(261): 785-790. {a} Sch. Life Sci., Vigyan Bhavan, Khandwa Road, Devi Ahilya Vishwavidyalaya, Indore 452001, India

Jakobsen, S. T. (1993). Nutritional disorders between potassium, magnesium, calcium, and phosphorus in soil. Plant and Soil 154(1): 21-28. Dep. Agric. Sci., Royal Veterinary, Agric. University, Agrovej 10, DK 2630 Taastrup, Denmark

Jama, A. O. and M. J. Ottman (1993). Timing of the first irrigation in corn and water stress conditioning. Agronomy Journal 85(6): 1159-1164. {a} Dep. Crop Soil Sci., Mich. State Univ., East Lansing, MI 48824, USA

James, F., R. Brouquisse, et al. (1993). Changes in proteolytic activities in glucose-starved maize root tips. Regulation by sugars. Plant Physiology and Biochemistry Paris 31(6): 845-856. {a} Station de Physiol. Vegetale, INRA, Cent. Recherche de Bordeaux, BP 81, 33883 Villenave d'Ornon Cedex, France

Janardhan, G., T. V. Muniyappa, et al. (1993). Effect of pre-emergence herbicides on weed control in transplanted rice. Crop Research Hisar 6(1): 155-158. {a} Dep. Agronomy, G.K.V.K. Univ. Agricultural Sciences, Bangalore-560 065, India

Jankevicius, S. I., M. L. D. Almeida, et al. (1993). Axenic cultivation of trypanosomatids found in corn (Zea mays) and in phytophagous hemipterans (Leptoglossus zonatus Coreidae) and their experimental transmission. Journal of Eukaryotic Microbiology 40(5): 576-581. {a} Dep. de Patologia Geral, Centro de Ciencias Biologicas, Universidade Estadual de Londrina, 86055-900 Londrina, Parana, Brazil

Jawson, M. D., A. J. Franzluebbers, et al. (1993). Soil fumigation within monoculture and rotations: Response of corn and mycorrhizae. Agronomy Journal 85(6): 1174-1180. {a} USEPA, R.S. Kerr Environmental Res. Lab., P.O. Box 1198, Ada, OK 74820, USA

Jennings, R. C., R. Bassi, et al. (1993). Distribution of the chlorophyll spectral forms in the chlorophyll-protein complexes of photosystem II antenna. Biochemistry 32(13): 3203-3210. {a} Centro CNR Biologia Cellulare Molecolare Piante, Dip. Biologia, Univ. Milano, via Celoria 26, 20133 Milano, Italy

Jha, P. B. (1993). Diallel analysis for resistance to common rust and turcicum leaf blight in maize. Proceedings of the National Academy of Sciences India Section B Biological Sciences 63(2): 237-241. Dep. Plant Breeding, Rajendra Agric. Univ., Bihar, Pusa-848 125, India

Jiao, G. L., X. K. Tang, et al. (1993). Kinetic analysis of the effect of lanthanum chloride on potassium ion exudation of corn root segments. Acta Botanica Sinica 35(4): 286-290. Inst. Bot., Acad. Sinica, Beijing 100044, China

Jin, B. S., R. D. Park, et al. (1993). Varietal classification of barley by isozymes and restriction fragment length polymorphisms (RFLPs). Journal of the Korean Agricultural Chemical Society 36(3): 139-145. {a} Dep. Agric. Chem., Chonnam Natl. Univ., Kwangju, 500-757, North Korea

Johansson, E., P. Henriksson, et al. (1993). Detection, chromosomal location and evaluation of the functional value of a novel high M-r glutenin subunit found in Swedish wheats. Journal of Cereal Science 17(3): 237-245. {a} Swedish Univ. Agric. Sci., Dep. Plant Breeding Res., S-268 31 Svalov, Sweden

Johnk, J. S., R. K. Jones, et al. (1993). Characterization of populations of Rhizoctonia solani AG-3 from potato and tobacco. Phytopathology 83(8): 854-858. {a} Dep. Plant Pathol., Univ. Minn., St. Paul, MN 55108, USA

Johnk, J. S. and R. Kjones (1993). Differentiation of populations of AG-2-2 of Rhizoctonia solani by analysis of cellular fatty acids. Phytopathology 83(3): 278-283. Dep. Plant Pathology, Univ. Minnesota, St. Paul, MN 55108

Johnson, D. H., D. L. Jordan, et al. (1993). Nicosulfuron, primisulfuron, imazethapyr, and DPX-PE350 injury to succeeding crops. Weed Technology 7(3): 641-644. {a} American Cyanamid Co., P.O. Box 400, Princeton, NJ 08543-0400, USA

Johnson, G. A., M. S. Defelice, et al. (1993). Cover crop management and weed control in corn (Zea Mays). Weed Technology 7(2): 425-430. {a} Univ. Nebr., 362 Plant Sci. Build., Lincoln, NE 68583, USA

Johnson, T. G. and J. C. Parker (1993). A model of nitrate leaching from agricultural systems in Virginia's northern neck. Virginia Polytechnic Institute and State University Water Resources Research Center Bulletin(179): I-XVIII, 1-306. Dep. Crop and Soil Environmental Sci., Virginia Polytechnic Inst. and State Univ., Blacksburg, VA 24060-3397, USA

Jones, A. M. and E. M. Herman (1993). KDEL-containing auxin-binding protein is secreted to the plasma membrane and cell wall. Plant Physiology Rockville 101(2): 595-606. {a} Dep. Biol., Univ. North Carolina, Chapel Hill, NC 27599, USA

Jones, D. L. and P. R. Darrah (1993). Influx and efflux of amino acids from Zea mays L. roots and their implications for N nutrition and the rhizosphere. Plant and Soil 155-156: 87-90. Dep. Plant Sci., Univ. Oxford, Oxford OX1 3RB, UK

Jones, D. L. and P. R. Darrah (1993). Re-sorption of organic compounds by roots of Zea mays L. and its consequences in the rhizosphere: II. Experimental and model evidence for simultaneous exudation and re-sorption of soluble carbon compounds. Plant and Soil 153(1): 47-59. Dep. Plant Sci., Univ. Oxford, Oxford OX1 3RB, UK

Jones, M. J. and L. D. Dunkle (1993). Analysis of Cochliobolus carbonum races by PCR amplification with arbitrary and gene-specific primers. Phytopathology 83(4): 366-370. {a} U.S. Dep. Agric., Agric. Res. Serv., Purdue Univ., West Lafayette, IN 47907-1155, USA

Joseph, P. A. and R. Prasad (1993). Correlation studies on ammonium/nitrate concentrations in soil and growth and yield of wheat. Journal of Agronomy and Crop Science 171(1): 26-30. {a} Agric. Res. Station, Pilicode, District Kasargod, Kerala 67133, India

Juan, N. A., C. C. Sheaffer, et al. (1993). Temperature and photoperiod effects on multifoliolate expression and morphology of alfalfa. Crop Science 33(3): 573-578. {a} Dep. Agron. and Plant Genetics, 1991 Upper Buford Circle, Univ. Minn., St. Paul, MN 55108, USA

Junghans, H., K. Dalkin, et al. (1993). Stress responses in alfalfa (Medicago sativa L.): 15. Characterization and expression patterns of members of a subset of the chalcone synthase multigene family. Plant Molecular Biology 22(2): 239-253. {a} Plant Biol. Div., Samuel Roberts Noble Foundation, P.O. Box 2180, Ardmore, OK 73402, USA

Jupe, E. R. and E. A. Zimmer (1993). DNase I-sensitive and undermethylated rDNA is preferentially expressed in a maize hybrid. Plant Molecular Biology 21(5): 805-821. {a} Lab. Molecular Systematics, A2000 Museum Support Center, NMNH, Smithsonian Inst., Washington, DC 20560, USA

Juvik, J. A., M. C. Jangulo, et al. (1993). Kernel changes in a shrunken2 maize population associated with selection for increased field emergence. Journal of the American Society for Horticultural Science 118(1): 135-140. {a} Dep. Hortic., Univ. Ill., Urbana, IL 61801

Kal, c. V. A., N. P. Arkhipov, et al. (1993). Mutagenesis of allozyme loci in Pinus sylvestris L. megaspores induced by ionizing irradiation after Chernobyl NNP accident. Genetika 29(2): 266-273. {a} N.I. Vavilov Gen. Genet., Acad. Sci. Russ., Moscow, Russia

Kang, K. K. and T. Kameya (1993). Selection and characterization of a 5-methyltryptophan resistant mutant in Zea mays L. Euphytica 69(1-2): 95-101. Inst. Genet. Ecol., Tohoku Univ., Sendai 980, Japan

Kang, M. S. (1993). Inheritance of susceptibility to nicosulfuron herbicide in maize. Journal of Heredity 84(3): 216-217. Dep. Agronomy, Louisiana Agric. Exp. Stn., Louisiana State Univ. Agric. Cent., Baton Rouge, LA 70803-2110, USA

Kang, M. S. (1993). Simultaneous selection for yield and stability in crop performance trials: Consequences for growers. Agronomy Journal 85(3): 754-757. Dep. Agron., La. Agric. Exp. Stn., La. State Univ. Agric. Center, Baton Rouge, LA 70803-2110, USA

Karel, A. K. (1993). Effects of intercropping with maize on the incidence and damage caused by pod borers of common beans. Environmental Entomology 22(5): 1076-1083. Natl. Cent. Integrated Pest Management, 646, 21-A, Badkhal Road, Faridabad 121 001, India

Karim, A. B., P. S. Savill, et al. (1993). The effects of between-row (alley-widths) and within-row spacings of Gliricidia sepium on alley-cropped maize in Sierra Leone: Growth and yield of maize. Agroforestry Systems 24(1): 81-93. {a} Dep. Botany, Fourah Bay College, Univ. Sierra Leone, Freetown, W. AFR

Karimova, F. G., S. A. Leonova, et al. (1993). CAMP efflux from plant cells. Fiziologiya i Biokhimiya Kul'turnykh Rastenii 25(4): 362-368. Kazan Inst. Biol, Kazan Sci. Cent., Acad. Sci. Russ., Kazan, Russia

Karpenko, V. N., S. S. Medvedev, et al. (1993). The effect of ethylene on the growth and cytokinin level in plants after root system treatment by ethylene-producers. Vestnik Sankt Peterburgskogo Universiteta Seriya 3 Biologiya(2): 73-78. St. Petersburg Univ., St. Petersburg, Russia

Katekar, G. F., M. A. Venis, et al. (1993). Binding of lunularic acid, hydrangeic acid and related compounds to the receptor for 1-N-naphthylphthalamic acid. Phytochemistry Oxford 32(3): 527-531. {a} CSIRO Div. Plant Industry, G.P.O. Box 1600, Canberra 2601, Australia

Keck, T. J., W. F. Quimby, et al. (1993). Spatial distribution of soil attributes on reconstructed minesoils. Soil Science Society of America Journal 57(3): 782-786. {a} Plant Soil Sci. Dep., Montana State Univ., Bozeman, MT 59717, USA

Keeratinijakal, V. and K. R. Lamkey (1993). Genetic effects associated with reciprocal recurrent selection in BSSS and BSCB1 maize populations. Crop Science 33(1): 78-82. {a} USDA-ARS, Dep. Agronomy, Iowa State Univ., Ames, IA 50011

Keeratinijakal, V. and K. R. Lamkey (1993). Responses to reciprocal recurrent selection in BSSS and BSCB1 maize populations. Crop Science 33(1): 73-77. {a} USDA-ARS, Dep. Agronomy, Iowa State Univ., Ames, IA 50011

Keith, C. S., D. O. Hoang, et al. (1993). Partial sequence analysis of 130 randomly selected maize cDNA clones. Plant Physiology Rockville 101(1): 329-332. {a} Dep. Biol. Sci., Calif. State Univ., Hayward, CA 94542, USA

Keller, J., E. Lim, et al. (1993). Preferential transposition of Ac to linked sites in Arabidopsis. Theoretical and Applied Genetics 86(5): 585-588. {a} DNA Plant Technol. Corp., 6701 San Pablo Ave., Oakland, CA 94608, USA

Kellner, O. (1993). Effects of nitrogen addition on the population dynamics and flowering of Pulsatilla vernalis. Canadian Journal of Botany 71(5): 732-736. Dep. Ecology Environ. Res., Swedish Univ. Agric. Sci., Box 7072, S-750 07 Uppsala, Sweden

Kellogg, E. A. and J. A. Birchler (1993). Linking phylogeny and genetics: Zea mays as a tool for phylogenetic studies. Systematic Biology 42(4): 415-439. {a} Arnold Arboretum Harvard Univ., 22 Divinty Ave., Cambridge, MA 02138, USA

Kelly, J. M. (1993). Temperature affects solution-phase nutrient concentrations and subsequent calculations of supply parameters. Soil Science Society of America Journal 57(2): 527-531. Tenn. Valley Authority, Cooperative Forest Studies Program, P.O. Box 2008, Oak Ridge, TN 37831-6038, USA

Ketel, D. H., M. Knoche, et al. (1993). The seed affects metribuzin efficiency in maize seedlings. Mededelingen Faculteit Landbouwkundige en Toegepaste Biologische Wetenschappen Universiteit Gent 58(3a): 787-793. Dep. Weed Physiol. Ecol., Cent. voor Agrobiol. Onderzoek, CABO-DLO, P.O. Box 14, 6700 AA Wageningen, Netherlands

Khan, A., A. Aziz, et al. (1993). Response of two maize cultivars to management inputs. Sarhad Journal of Agriculture 9(5): 355-358. {a} NWFP Agric. Univ., Peshawar, Pakistan

Khan, A. S., D. E. Van, et al. (1993). Purification of the glyoxylate cycle enzyme malate synthase from maize (Zea mays L.) and characterization of a proteolytic fragment. Protein Expression and Purification 4(6): 519-528. Lab. Chemie, Proteinen, Vrije Univ. Brussel, Paardenstr. 65, B-1640 Sint-Genesius-Rode, Belgium

Khan, I., M. J. Hill, et al. (1993). A study of the effects of storage environments and rice weevil (Sitophilus oryzae L.) on seed deterioration in maize (Zea mays). Sarhad Journal of Agriculture 9(6): 576-585. {a} ARI, Tarnab, Peshawar, Pakistan

Khan, I., M. J. Hill, et al. (1993). A study of the influence of storage environment on seed deterioration in maize (Zea mays). Sarhad Journal of Agriculture 9(5): 393-397. {a} ARI, Tarnab, Peshawar, Pakistan

Khan, M., U. H. Noor, et al. (1993). The effects of pre-emergence herbicides on weed control and maize grain yield on farmer's field. Sarhad Journal of Agriculture 9(5): 415-421. Res. Inst., Tarnab, Peshawar, Pakistan

Khare, M. and K. N. Guruprasad (1993). UV-B-induced anthocyanin synthesis in maize regulation by FMN and inhibitors of FMN photoreactions. Plant Science Limerick 91(1): 1-5. {a} Sch. Life Sci. Vigyan Bhawan, Khandwa Rd., Devi Ahilya Vishwaidyalaya, Indore 452001, India

Kim, K. N., Y. W. Lee, et al. (1993). Stimulation of ribosome activity of Zea mays by polyamine. Korean Journal of Botany 36(1): 83-90. Dep. Biol., Korea Univ., Seoul, North Korea

Kimura, K. and Y. Sugimoto (1993). Estimation of energy requirement for factors of production in agriculture. Technical Bulletin of Faculty of Horticulture Chiba University(47): 247-254. The United Graduate Sch., Tokyo Univ. Agriculture and Technol., Japan

Kindiger, B. (1993). Aberrant microspore development in hybrids of maize X Tripsacum dactyloides. Genome 36(5): 987-997. United States Dep. Agric., Agric. Res. Service, Southern Plains Range Res. Station, 2000 18th St., Woodward, OK 73801, USA

Kindiger, B. and S. Hamann (1993). Generation of haploids in maize: A modification of the indeterminate gametophyte (ig) system. Crop Science 33(2): 342-344. {a} USDA-ARS, Southern Plains Range Res. Station, 2000 18th St., Woodward, OK 73801

Kiniry, J. R. (1993). Nonstructural carbohydrate utilization by wheat shaded during grain growth. Agronomy Journal 85(4): 844-849. USDA-ARS Grassland Soil Water Res. Lab., 808 E. Blackland Road, Temple, TX 76502, USA

Kirchner, M. J., A. G. I. Wollum, et al. (1993). Soil microbial populations and activities in reduced chemical input agroecosystems. Soil Science Society of America Journal 57(5): 1289-1295. {a} Rt. 1, Box 12-B, Clewiston, FL 33440, USA

Kitur, B. K., K. R. Olson, et al. (1993). Tillage effects of selected physical properties of Grantsburg silt loam. Communications in Soil Science and Plant Analysis 24(13-14): 1509-1527. {a} Dep. Agron., 1102 S. Goodwin Ave., Univ. Ill., Urbana, IL 61801, USA

Kiyosue, T., S. K. Yamaguchi, et al. (1993). CDNA cloning of ECP40, an embryogenic-cell protein in carrot, and its expression during somatic and zygotic embryogenesis. Plant Molecular Biology 21(6): 1053-1068. {a} Inst. Biological Sciences, Univ. Tsukuba, Tsukuba-shi, Ibaraki 305, Japan

Klaembt, D. (1993). NPA inhibits secretion of amylases by barley aleurone cells and auxins can overcome this inhibition. Botanica Acta 106(1): 52-57. Botanisches Inst. Univ. Bonn, Meckenheimer Allee 170, D(W)-5300 Bonn 1, Germany

Klausner, S. D., W. S. Reid, et al. (1993). Relationship between late spring soil nitrate concentrations and corn yields in New York. Journal of Production Agriculture 6(3): 350-354. {a} Dep. Soil Atmospheric Sciences, Cornell Univ., Ithaca, NY 14853, USA

Kludze, H. K., R. D. Delaune, et al. (1993). Aerenchyma formation and methane and oxygen exchange in rice. Soil Science Society of America Journal 57(2): 386-391. {a} Wetland Biogeochemistry Inst., Louisiana State Univ., Baton Rouge, LA 70803-7511, USA

Knoblauch, S., H. Abdank, et al. (1993). Ecologically conscious disposal of silage effluent by application in crop growing. Kuehn Archiv 87(2): 125-136. {a} Martin-Luther-Universitaet Halle-Wittenberg, Landwirtschaftliche Fakultaet, Institut fuer Standortkunde Agrarraumgestaltung, Landeskultur Kulturtechnik, Ludwig-Wucherer-Str. 2, 06108, Halle, Germany

Knoche, M. and M. J. Bukovac (1993). Interaction of surfactant and leaf surface in glyphosate absorption. Weed Science 41(1): 87-93. {a} Dep. Weed Sci., DCO-Cent. Agrobiol. Res., P.O. Box 14, NL-6700 AA Wageningen, Netherlands Antilles

Knowlton, K. F., R. E. Pitt, et al. (1993). Model-predicted value of enzyme-treated alfalfa silage for lactating dairy cows. Journal of Production Agriculture 6(2): 280-286. {a} Dep. Agric. Biol. Eng., Cornell Univ., Ithaca, NY 14853, USA

Kobayashi, M., P. Gaskin, et al. (1993). Metabolism and biological activity of gibberellin A-4 in vegetative shoots of Zea mays, Oryza sativa, and Arabidopsis thaliana. Plant Physiology Rockville 102(2): 379-386. {a} Dep. Agric. Sci., Univ. Bristol, Agric. Food Res. Counc. Inst., Arable Crops, Long Ashton, Bristol BS18 9AF, UK

Koester, R. P., P. H. Sisco, et al. (1993). Identification of quantitative trait loci controlling days to flowering and plant height in two near isogenic lines of maize. Crop Science 33(6): 1209-1216. {a} Genet. Design Inc., 7017 Albert Pick Rd., Greensboro, NC 27409, USA

Komor, E., I. Liegl, et al. (1993). Loading and translocation of various cytokinins in phloem and xylem of the seedling of Ricinus communis L. Planta Heidelberg 191(2): 252-255. {a} Pflanzenphysiologie, Univ. Bayreuth, Universitaetsstr. 30, D-95440 Bayreuth, Germany

Koscielniak, J. (1993). Effect of low night temperatures on photosynthetic activity of the maize seedlings (Zea mays L.). Journal of Agronomy and Crop Science 171(2): 73-81. Dep. Plant Physiol., Fac. Agric., Univ. Agric. Krakow, Podluzna 3, 30-239 Krakow, Poland

Koscielniak, J., F. Janowiak, et al. (1993). Effect of low soil temperature on weight increase, gas exchange and distribution of carbon-14 assimilates in seedlings of a maize hybrid. Journal of Agronomy and Crop Science 170(3): 163-170. {a} Chair Plant Physiol., Fac. Agric., Univ. Agric. Krakow, Podluzna 3, 30-239 Krakow, Poland

Koshiba, T. (1993). Cytosolic ascorbate peroxidase in seedlings and leaves of Maize (Zea mays). Plant and Cell Physiology 34(5): 713-721. Dep. Biology, Tokyo Metropolitan Univ., Hachioji-shi, Tokyo 192-03, Japan

Koshiba, T. and H. Matsuyama (1993). An in-vitro system of indole-3-acetic acid formation from tryptophan in maize (Zea mays) coleoptile extracts. Plant Physiology Rockville 102(4): 1319-1324. {a} Dep. Biol., Tokyo Metropolitan Univ., Hachioji-shi, Tokyo 192-03, Japan

Koskinen, W. C., K. M. Reynolds, et al. (1993). Persistence and movement of sethoxydim residues in three Minnesota soils. Weed Science 41(4): 634-640. Soil Sci. Dep., Soil Water Res. Unit, U.S. Dep. Agric., Agric. Res. Serv., Univ. Minnesota, St. Paul, MN 55108, USA

Kota, R. S., K. S. Gill, et al. (1993). A cytogenetically based physical map of chromosome 1B in common wheat. Genome 36(3): 548-554. {a} Dep. Plant Pathol., Wheat Genet. Resource Cent., Throckmorton Hall, Kans. State Univ., Manhattan, KS 66506-5502, USA

Kotoula, S. E., I. G. Eleftherohorinos, et al. (1993). Phytotoxicity and persistence of chlorsulfuron, metsulfuron-methyl, triasulfuron and tribenuron-methyl in three soils. Weed Research 33(5): 355-367. {a} Plant Protection Inst., PO Box 324, 57001 Thermi, Thessloniki

Kovacs, M., G. Turcsanyi, et al. (1993). Heavy metal content in cereals in industrial regions. Acta Agronomica Hungarica 42(3-4): 171-183. Univ. Agric. Sci., Dep. Bot. Plant Physiol., Godollo, Hungary

Krall, J. P. and R. W. Pearcy (1993). Concurrent measurements of oxygen and carbon dioxide exchange during lightflecks in maize (Zea mays L.). Plant Physiology Rockville 103(3): 823-828. {a} Dep. Botany, Univ. Calif., Davis, CA 95616-8537, USA

Kramer, C., J. Dimaio, et al. (1993). Selection of transformed protoplast-derived Zea mays colonies with phosphinothricin and a novel assay using the pH indicator chlorophenol red. Planta Heidelberg 190(4): 454-458. {a} CIBA-Geigy Corp., P.O. Box 12257, Research Triangle Park, NC 27709-2267, USA

Krausz, J. P., R. A. Fredericksen, et al. (1993). Epidemic of northern corn leaf blight in Texas in 1992. Plant Disease 77(10): 1063. {a} Dep. Plant Pathology Microbiol., Texas A and M Univ., College Station, TX 77843-2132, USA

Krylow, A. A., A. N. Azhhirevich, et al. (1993). Role of 70S and 80S ribosomes in the phosphorylation of the chloroplasts of maize heterosis hybrids. Vyestsi Akademii Navuk Byelarusi Syeryya Biyalahichnykh Navuk(3): 25-28, 123. V.F. Kuprevich Inst. Exp. Bot., Acad. Sci. Belarus, Minsk, Belarus

Kuiters, A. T. and W. Mulder (1993). Water-soluble organic matter in forest soils: II. Interference with plant cation uptake. Plant and Soil 152(2): 225-235. {a} Inst. For. Nature Res., Kemperbergerweg 67, P.O. Box 9201, 6800 HB Arnhem, Netherlands Antilles

Kukal, S. S., K. L. Khera, et al. (1993). Soil erosion management on arable lands of Submontane Punjab, India: A review. Arid Soil Research and Rehabilitation 7(4): 369-375. {a} Dep. Soils, Punjab Agric. Univ., Ludhiana 141 004, Punjab, India

Kumar, H. (1993). Resistance in maize to Chilo partellus (Lepidoptera: Pyralidae) in relation to crop phenology, larval rearing medium, and larval development stages. Journal of Economic Entomology 86(3): 886-890. Int. Maize Wheat Improvement Cent., Maize Program, Apdo. Postal 6-641, 06600 Mexico, D.F., Mexico

Kumar, H. (1993). Responses of Chilo partellus (Lepidoptera: Pyralidae) and Brusseola fusca (Lepidoptera: Noctuidae) to hybrids of a resistant and a susceptible maize. Journal of Economic Entomology 86(3): 962-968. Int. Maize Wheat Improv. Cent., Lisboa 27, Apdo. Postal 6-641, 06600 Mexico, D.F., Mexico

Kumar, H. and G. O. Asino (1993). Resistance of maize to Chilo partellus (Lepidoptera: Pyralidae): Effect of plant phenology. Journal of Economic Entomology 86(3): 969-973. {a} Int. Maize Wheat Improv. Cent., Lisboa 27, Apdo. Postal 6-641, 06600 Mexico, D.F., Mexico

Kumar, H., E. M. O. Nyangiri, et al. (1993). Colonization responses and damage by Chilo partellus (Lepidoptera: Pyralidae) to four variably resistant cultivars of maize. Journal of Economic Entomology 86(3): 739-746. {a} Int. Maize Wheat Improvement Cent., Lisboa 27, Apdo. Postal 6-641, 06600 Mexico, D.F., Mexico

Kumar, R. and C. S. Levings, III (1993). RNA editing of a chimeric maize mitochondrial gene transcript is sequence specific. Current Genetics 23(2): 154-159. {a} Dep. Genet., N.C. State Univ., Box 7614, Raleigh, NC 27695-7614, USA

Kumwenda, J. D. T., D. E. Radcliffe, et al. (1993). Reseeding of crimson clover and corn grain yield in a living mulch system. Soil Science Society of America Journal 57(2): 517-523. {a} Dep. Agronomy, Univ. Ga., Athens, GA 30602, USA

Kuriyama, A., F. Kawai, et al. (1993). Inhibitory effect of jasmonic acid on gametophytic growth initiation and development of sporophytic shoots in Equisetum arvense. Journal of Plant Physiology 141(6): 694-697. {a} Interdisciplinary Res. Inst. Environ. Sci., Shichihon-matsu, Itsutsuji-dori, Kamigyo-ku, Kyoto 602, Japan

Kurmi, K. and M. K. Sarmah (1993). Effect of seed rate in nursery on transplanted ahu rice. Crop Research Hisar 6(1): 1-4. {a} Dep. Agronomy, CCS Haryana Agricultural Univ., Hisar-125 004, India

Kusutani, A., K. I. Asanuma, et al. (1993). Studies on varietal difference in yielding ability in rice: I. Varietal difference in yield structure. Japanese Journal of Crop Science 62(3): 385-394. Fac. Agric., Kagawa Univ., Miki-cho, Kagawa 761-07, Japan

Kyozuka, J., D. McElroy, et al. (1993). Light-regulated and cell-specific expression of tomato rbcS-gusA and rice rbcS-gusA fusion genes in transgenic rice. Plant Physiology Rockville 102(3): 991-1000. {a} Plantech Res. Inst., 1000 Kamoshida, Midori-ku, Yokohama 227, Japan

Labatte, J. M. (1993). Within-plant distribution of fall armyworm (Lepidoptera: Noctuidae) larvae on corn during whorl-stage infestation. Florida Entomologist 76(3): 437-447. INRA Station de Zoologie, Rte de St cyr, 78000 Versailles, France

Labatte, J. M. and B. Got (1993). Modeling within-plant distribution of European corn borer (Lepidoptera: Pyralidae) larvae on corn for pretasseling infestation. Journal of Economic Entomology 86(3): 747-760. Stn. Zool., Inst. Natl. Rech. Agron., route de St Cyr, 78000 Versailles, France

Laboure, A. M., J. Gagnon, et al. (1993). Purification and characterization of a phytase (myo-inositol-hexakisphosphate phosphohydrolase) accumulated in maize (Zea mays) seedlings during germination. Biochemical Journal 295(2): 413-419. {a} Lab. Biologie Molecularie Vegetale, Cent. Natl. Rech. Sci., Univ. Joseph Fourier, B.P. 53X, 38041 Grenoble Cedex, France

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

Lakhani, S., N. C. Khanna, et al. (1993). Nascent transcript-binding protein of the pea chloroplast transcriptionally active chromosome. Plant Molecular Biology 23(5): 963-979. {a} Int. Centre Genet. Eng. and Biotechnol., NII Campus, Aruna Asaf Ali Marg, New Delhi 110 067, India

Lakshminarayana, R. (1993). Impact of high-yielding varieties of tobacco (Nicotiana tabacum) and changing aspects of their cultivation. Indian Journal of Agricultural Sciences 63(11): 685-693. All-India Co-ordinated Res. Project on Tabacco, Gujarat Agric. Univ., Anand 388 110, India

Lambhate, S. S., W. D. More, et al. (1993). Apiospora camptospora: A new fungus causing stalk rot on maize in India. Current Science Bangalore 64(1): 50-51. Mahatma Phule Agric. Univ., Rahuri 413 722, India

Lance, D. R. (1993). Effects of a nonpheromonal attractant on movement and distribution of adult Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae). Environmental Entomology 22(3): 654-662. USDA-APHIS-PPQ, Hawaii Methods Dev. Station, 41-650 Ahiki St., Waimanalo, HI 96795, USA

Langenbruch, G. A. and N. Lorenz (1993). A ten-year study on the applicability of pheromone-baited traps for monitoring the European corn borer (Ostrinia nubilalis Hbn.) in the Federal Republic of Germany: Part 2. Investigations on the applicability of pheromone-baited traps for calculating the data of release of Trichogramma wasps. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz 100(2): 129-143. Biol. Bundesanstalt Land-und Forstwirtschaft, Inst. Biol. Pflanzenschutz, Heinrichstr. 243, D-6100 Darmstadt

Lanszky, I. and T. Komives (1993). Safening of fluorochloridone by DKA-24 in corn (Zea mays, L.). Acta Phytopathologica et Entomologica Hungarica 28(2-4): 495-498. Ministry Agriculture, P.O.B. 73, H-1053 Budapest, Hungary

Lass, L. W., R. H. Callihan, et al. (1993). Forecasting the harvest date and yield of sweet corn by complex regression models. Journal of the American Society for Horticultural Science 118(4): 450-455. {a} Dep. Plant Soil and Entomol. Sci., Univ. Idaho, Moscow, ID 83843, USA

Lau, S. M. C., P. A. Harder, et al. (1993). Low carbon monoxide affinity allene oxide synthase is the predominant cytochrome P450 in many plant tissues. Biochemistry 32(8): 1945-1950. {a} Central Res. and Dev., Dupont Company, Experimental Station, P.O. Box 80402, Wilmington, DE 19880-0402, USA

Lawane, G. and A. Daelemans (1993). Risk of soil compaction under the action of heavy agricultural tractor wheels on alfisols in West-Cameroon? Effects on the yield of maize Zea mays L. and groundnut Arachis hypogaea L. in sole and intercropped systems. Tropicultura 11(4): 131-135. {a} C.U.D.s. Departement des Productions Vegetales, BP 222, Dschang, Cameroon

Leader, D., S. Connelly, et al. (1993). Differential expression of U5snRNA gene variants in maize (Zea mays) protoplasts. Plant Molecular Biology 21(1): 133-143. {a} Scottish Crop Res. Inst., Invergowrie, Dundee DD2 5DA, Scotland

Lee, I. M., R. W. Hammond, et al. (1993). Universal amplification and analysis of pathogen 16S rDNA for classification and identification of mycoplasma-like organisms. Phytopathology 83(8): 834-842. {a} Mol. Plant Pathol. Lab., Agric. Res. Serv., USDFA, Beltsville, MD 20705, USA

Lee, R. D., B. E. Johnson, et al. (1993). Sources of variation in the spectrophotometric assay of hydrocyanic acid potential in sorghum seedlings. Agronomy Journal 85(5): 1095-1096. {a} Dep. of Agronomy, Univ. Nebraska, Lincoln, NE 68583-0915, USA

Lee, Y. J., J. S. Lee, et al. (1993). Quantitative change in rbcL mRNA of maize by phytohormones. Korean Journal of Botany 36(3): 203-210. {a} Dep. Biol., Korea Univ., Seoul, South Korea

Leigh, R. A. and R. Storey (1993). Intercellular compartmentation of ions in barley leaves in relation to potassium nutrition and salinity. Journal of Experimental Botany 44(261): 755-762. {a} Biochem. and Physiol. Dep., AFRC Inst. Arable Crops Res., Rothamsted Experimental Station, Harpenden, Hertfordshire AL5 2JQ, UK

Lemerle, D. and R. D. Cousens (1993). Influence of growth stage on spring barley (Hordeum vulgare) tolerance in chlorsulfuron. Weed Science 41(1): 127-132. {a} Res. Agron., NSW Agric., Agric. Res. Inst., Wagga Wagga, NSW 2650, Australia

Lenardon, S. L., D. T. Gordon, et al. (1993). Serological differentiation of maize dwarf mosaic potyvirus strains A, D, E, and F by electro-blot immunoassay. Phytopathology 83(1): 86-91. {a} Dep. Plant Pathol., Ohio State Univ., Ohio Agric. Res. Dev. Center, Wooster, OH 44691

Levanon, D., E. E. Codling, et al. (1993). Mobility of agrochemicals through soil from two tillage systems. Journal of Environmental Quality 22(1): 155-161. {a} ARO Inst. Soil Water, Bet Dagan 50250, Israel

Levine, E. (1993). Effect of tillage practices and weed management on survival of stalk borer (Lepidoptera: Noctuidae) eggs and larvae. Journal of Economic Entomology 86(3): 924-928. Ill. Nat. Hist. Survey, 607 East Peabody Dr., Champaign, IL 61820, USA

Li, H. Y. and C. L. Foy (1993). Bioassay and anatomical study of BAS 517 using etiolated crop seedlings. Weed Science 41(3): 490-496. Rt. 3, Box 3898, Holts Summit, MO 65043-9582, USA

Li, M. G., R. Villemur, et al. (1993). Differential expression of six glutamine synthetase genes in Zea mays. Plant Molecular Biology 23(2): 401-407. {a} Dep. Genetics Cell Biol., Univ. Minnesota, St. Paul, MN 55108-1095, USA

Li, X. Z. and A. Oaks (1993). Induction and turnover of nitrate reductase in Zea mays: Influence of nitrate. Plant Physiology Rockville 102(4): 1251-1257. {a} Dep. Bot., Univ. Guelph, Guelph, ON N1G 2W1, Canada

Lian, S. (1993). Fate of nitrogen applied to corn under the rice-corn system. Journal of the Chinese Agricultural Chemical Society 31(2): 200-212. Dep. of Agricultural Chemistry, Taiwan Agricultural Res. Inst. Taichung, Taiwan

Liebig, M. A., A. J. Jones, et al. (1993). Controlled wheel traffic effects on soil properties in ridge tillage. Soil Science Society of America Journal 57(4): 1061-1066. {a} Dep. Agronomy, USDA-ARS, Univ. Nebraska, Lincoln, NE 68583, USA

Liedtke, C., B. G. Martiny, et al. (1993). Monoclonal antibody TOP 71 recognizes a tonoplast protein of wide distribution in the plant kingdom. Planta Heidelberg 190(4): 491-497. {a} Botanisches Inst., Univ. Bonn, Venusbergweg 22, W-5300 Bonn 1, Germany

Lilburn, M. S. (1993). Research note: The use of popcorn in diets for growing turkeys. Poultry Science 72(5): 984-986. Dep. Poultry Sci., Ohio State Univ., Ohio Agric. Res. Dev. Center, Wooster, OH 44691

Lillo, C. (1993). Light-induced circadian rhythms in NADP-glyceraldehyde-3-phosphate dehydrogenase mRNA in corn seedlings. Journal of Interdisciplinary Cycle Research 24(1): 65-71. Rogaland Univ. Center, Dep. Chem., Box 2557 Ullandhaug, N-4004 Stavanger, Norway

Lilly, D. P., D. L. Wright, et al. (1993). Tropical corn as affected by planting date, nitrogen, and water. Soil and Crop Science Society of Florida Proceedings 52: 21-27. {a} North Fla. Res. Education Center, Quincy, FL 32351-9529, USA

Lindo, P. V., R. W. Taylor, et al. (1993). Accumulation and movement of residual phosphorus in sludge-treated decatur silty clay loam soil. Communications in Soil Science and Plant Analysis 24(15-16): 1805-1816. {a} Dep. Plant Soil Sci., Alabama A and M Univ., Normal, AL 35762, USA

Lisanework, N. and A. Michelsen (1993). Allelopathy in agroforestry systems: The effects of leaf extracts of Cupressus lusitanica and three Eucalyptus spp. on four Ethiopian crops. Agroforestry Systems 21(1): 63-74. {a} Inst. Plant Ecol., Univ. Copenhagen, Oster Farimagsgade 2D, DK-1353 Copenhagen K, Denmark

Liu, C. N. and I. Rubenstein (1993). Transcriptional characterization of an alpha-zein gene cluster in maize. Plant Molecular Biology 22(2): 323-336. {a} Dep. Plant Biol. Plant Molecular Genetics Inst., Univ. Minnesota, 1445 Gortner Ave., St. Paul, MN 55108, USA

Liu, Z. L. and J. B. Sinclair (1993). Colonization of soybean roots by Bacillus megaterium B153-2-2. Soil Biology and Biochemistry 25(7): 849-855. Dep. Plant Pathol., Univ. Ill. Urbana-Champaign, 1102 South Goodwin Ave., Urbana, IL 61801-4709, USA

Logsdon, S. D. (1993). Negative head hydraulic properties of the soil surface at different times. Soil Science 156(6): 373-379. USDA-Agric. Res. Service, Natl. Soil Tilth Lab., 2150 Pammel Dr., Ames, IA 50011, USA

Lorito, M., C. K. Hayes, et al. (1993). Biolistic transformation of Trichoderma harzianum and Gliocladium virens using plasmid and genomic DNA. Current Genetics 24(4): 349-356. {a} Dep. Genet., Univ. Cordoba, E-14071 Cordoba, Spain

Louie, R. and R. J. Anderson (1993). Evaluation of maize chlorotic dwarf virus resistance in maize with multiple inoculations by Graminella nigrifrons (Homoptera: Cicadellidae). Journal of Economic Entomology 86(5): 1579-1583. {a} USDA-ARS, Corn Soybean Res. Unit, Ohio Agric. Res. Development Cent., Ohio State Univ., Wooster, OH 44691, USA

Lovis, J. D., H. Rasbach, et al. (1993). The chromosome number of Anogramma leptophylla (Adiantaceae: Pteridophyta) from New Zealand and South Africa. Fern Gazette 14(5): 149-154. {a} Inst f. Organ. Chem. der Univ., 19 St. Johanns-Ring, CH-4056 Basel, Switzerland

Lu, S. and M. H. Miller (1993). Determination of the most efficient phosphorus placement for field-grown maize (Zea mays L.) in early growth stages. Canadian Journal of Soil Science 73(3): 349-358. Dep. Land Resource Sci., Univ. Guelph, Guelph, Ont. N1G 2W1, Canada

Lu, Y. T., L. J. Feldman, et al. (1993). Inhibitory effects of KN-93, an inhibitor of Ca-2+ calmodulin-dependent protein kinase II, on light-regulated root gravitropism in maize. Plant Physiology and Biochemistry Paris 31(6): 857-862. {a} Dep. Plant Biol., Univ. Calif., 111 Koshland Hall, Berkeley, CA 94720, USA

Lubet, E., D. Plenet, et al. (1993). Long-term effect of a non-irrigated cropping system on grain yield of maize. Agronomie Paris 13(8): 673-683. {a} INRA, Station Agronomie, Centre de Recherches Bordeaux, BP 81, F33883 Villenave-d'Ornon Cedex, France

Lueschen, W. E., R. N. Andersen, et al. (1993). Seventeen years of cropping systems and tillage affect velvetleaf (Abutilon theophrasti) seed longevity. Weed Science 41(1): 82-86. {a} Dep. Agron., Univ. Minn. South Exp. Stn., Waseca, MN 56093, USA

Luethen, H. and M. Boettger (1993). Induction of elongation in maize coleoptiles by hexachloroiridate and its interrelation with auxin and fusicoccin action. Physiologia Plantarum 89(1): 77-86. {a} Institut fuer Allgemeine Botanik, Ohnhorststr. 18, D-22609 Hamburg, Germany

Luethen, H. and M. Boettger (1993). The role of protons in the auxin-induced root growth inhibition: A critical reexamination. Botanica Acta 106(1): 58-63. {a} Inst. Allgemeine Botanik, Univ. Hamburg, Ohnhorststrasse 18, D(W)-2000 Hamburg 52, Germany

Luethje, S., O. Doering, et al. (1993). Penetration by artificial electron acceptors of the plasma membrane-bound redox system into intact Zea mays L. roots investigated by proton-induced X-ray emission. Plant Physiology Rockville 103(2): 593-596. {a} Univ. Hamburg, Inst. Allgemeine Botanik, Ohnhorststrasse 18, D-22609 Hamburg, Germany

Luethy, M. H., A. Horak, et al. (1993). Monoclonal antibodies to the alpha- and beta-subunits of the plant mitochondrial F-1-ATPase. Plant Physiology Rockville 101(3): 931-937. {a} Sch. Biol. Sci. Cent. Biotechnol. Univ. Nebraska, Lincoln, NE 68588-0118, USA

Lukatkin, A. S., E. S. Sharkaeva, et al. (1993). Dynamics of changes in the exosmosis of electrolytes from maize leaves at different intensities of cold stress. Fiziologiya Rastenii Moscow 40(5): 770-775. {a} Dep. Bot. Plant Physiol., Fac. Biol., Mord. State Univ., ul. Bol'shevistskaya 68, Saransk 430000, Russia

Lund, M. G., P. R. Carter, et al. (1993). Tillage and crop rotation affect corn, soybean, and winter wheat yields. Journal of Production Agriculture 6(2): 207-213. {a} Dep. Agron., Univ. Wis., Madison, WI 53706, USA

Lur, H. S. and T. L. Setter (1993). Role of auxin in maize endosperm development: Timing of nuclear DNA endoreduplication, zein expression, and cytokinin. Plant Physiology Rockville 103(1): 273-280. {a} Dep. Soil Crop Atmospheric Sci., Cornell Univ., Ithaca, NY 14853, USA

Lur, H. S. and T. L. Setter (1993). Endosperm development of maize defective kernel (dek) mutants: Auxin and cytokinin levels. Annals of Botany London 72(1): 1-6. {a} Dep. Soil Crop Atmospheric Sci., Cornell Univ., 519 Bradfield Hall, Ithaca, NY 14853, USA

Ma, C. M., S. S. Jia, et al. (1993). Triterpenes and steroidal compounds from Cynomorium songaricum. Acta Pharmaceutica Sinica 28(2): 152-155. Dep. Pharmacy, Med. Coll. Inner Mongolia, Huhehaote 010059

Ma, R. J. and Z. L. Jin (1993). Studies on the root-stem transition zone in Panicum miliaceum. Acta Botanica Sinica 35(Suppl.): 13-18. Dep. Biol., Northwestern Normal Univ., Lanzhou 730070, China

Maas, S. J. (1993). Within-season calibration of modeled wheat growth using remote sensing and field sampling. Agronomy Journal 85(3): 669-672. USDA-ARS, Subtropical Agric. Res. Lab., 2413 East Highway 83, Weslaco, TX 78596-8344, USA

Maas, S. J. (1993). Parameterized model of gramineous crop growth: I. Leaf area and dry mass simulation. Agronomy Journal 85(2): 348-353. USA-ARS, Subtropical Agric. Res. Lab., 2413 East Highway 83, Weslaco, TX 78596-8344, USA

MacDonald, R. T., J. C. Hall, et al. (1993). Field bindweed (Convolvulus arvensis) control with fluroxypyr. Weed Technology 7(4): 966-971. Dep. Environ. Biol., Univ. Guelph, Guelph, ON N1G 2W1, Canada

MacMillan, J. and P. Gaskin (1993). Occurrence and origin of ent-17-hydroxykaur-15-ene and ent-17-hydroxykaur-15-en-19-oic acid in shoots of Zea mays. Phytochemistry Oxford 34(6): 1483-1487. Dep. Agric. Sci., Univ. Bristol, AFRC Inst. Arable Crops, Long Ashton, Bristol BS18 9AF, UK

Magari, R. and M. S. Kang (1993). Genotype selection via a new yield-stability statistic in maize yield trials. Euphytica 70(1-2): 105-111. {a} Dep. Agron., La. Agric. Exp. Station, La. State Univ. Agric. Cent., Baton Rouge, LA 70803-2110, USA

Maguire, R. J. and R. J. Tkacz (1993). Occurrence of pesticides in the Yamaska River, Quebec. Archives of Environmental Contamination and Toxicology 25(2): 220-226. Rivers Res. Branch, National Water Research Inst., Dep. Environment, Canada Centre Inland Waters, Burlington, Ontario L7R 4A6, Canada

Mahajan, K. K. and B. B. Kanwar (1993). Effect of pine (Pinus species)-needle mulch on maize (Zea mays)-wheat (Triticum aestivum) cropping system. Indian Journal of Agronomy 38(4): 515-518. Regional Res. Station, Himachal Pradesh Krishi Vishwavidyalaya, Bajaura 175 125, India

Mahajan, V., B. S. Dhillon, et al. (1993). Combining ability analysis of response to cold stress in maize. Field Crops Research 34(1): 71-81. {a} Punjab Agricultural Univ., Ludhiana-141 004, India

Mahajan, V., A. S. Khehra, et al. (1993). Stability analysis for cold injury in maize. Crop Research Hisar 6(1): 173-175. Dep. Plant Breeding, Punjab Agricultural Univ., Ludhiana-141 004, India

Mahe, A., J. Grisvard, et al. (1993). Two avirulent races of Colletotrichum lindemuthianum trigger different time courses of plant defense reactions in beans. Molecular Plant Microbe Interactions 6(4): 423-428. {a} Phytopathologie Mol., Dep. Biol. Mol. Vegetale, URA CNRS 1128, Bat. 30, Univ. Paris XI, 91405 Orsay Cedex, France

Mahmood, U. H. M., A. Rashid, et al. (1993). Phosphorus requirement of corn and sunflower grown on calcareous soils of Pakistan. Communications in Soil Science and Plant Analysis 24(13-14): 1529-1541. Land Resources Res. Inst., Natl. Agric. Res. Center, Islamabad 45500, Pakistan

Maiti, D., A. List, Jr., et al. (1993). Transcripts for a lectin-like gene accumulate in the epidermis but not the protodermis of the pea shoot apex. Planta Heidelberg 190(2): 241-246. {a} Dep. Biosci. Biotechnol., Drexel University, Philadelphia, PA 19104, USA

Makita, N. J., B. B. M, et al. (1993). Study on the possibilities of agricultural valorisation of sugarcane scums and bagasse of SOSUHO (Gabon). Tropicultura 11(1): 20-24. {a} Laboratoire de Physiologie et Biochimie vegetales, Universite des Sciences et Techniques de Masuku B. P. 943 Franceville, Gabon, France

Makkar, H. P. S. and K. Becker (1993). Vanillin-hydrochloride method for condensed tannins: Effect of organic solvents used for extraction of tannins. Journal of Chemical Ecology 19(4): 613-621. {a} Inst. Animal Production Tropics Subtropics, Univ. Hohenheim, Box 700562, 7000 Stuttgart 70, Germany

Malcolm, K. J. and H. E. Kiesling (1993). Dry matter disappearance and gelatinization of grains as influenced by processing and conditioning. Animal Feed Science and Technology 40(4): 321-330. {a} Dep. Animal Range Sci., Clayton Livestock Res. Center, Clayton, NM 88415, USA

Malmgren, S. (1993). Large-scale asymbiotic propagation by seed of Anacamptis, Ophrys, Orchis and other European orchids with entire tubers. Svensk Botanisk Tidskrift 87(4): 221-234. Radagatan 8, S-531 52 Lidkoping, Sweden

Mandal, A. B. (1993). Effect of boron on different varieties of bread wheat (Triticum aestivum). Crop Research Hisar 6(2): 330-334. Dep. Genetics Plant Breeding, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, India

Mandal, B., T. K. Adhikari, et al. (1993). Effect of lime and organic matter application on the availability of added boron in acidic alluvial soils. Communications in Soil Science and Plant Analysis 24(15-16): 1925-1935. Micronutrient Res. Lab., Dep. Agric. Chem. Soil Sci., Bidhan Chandra Krishi Viswavidyalaya, Kalyani 741235, West Bengal, India

Mandal, B. K., N. C. Das, et al. (1993). Relative efficiency of Azolla and other organic manures in summer rice (Oryza sativa). Indian Journal of Agricultural Sciences 63(4): 195-199. {a} Dep. Agron., Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal 741 252, India

Mandimba, G. R., C. Galandzou, et al. (1993). Effect of plant population densities on the growth of Zea mays L. and Arachis hypogaea L. in intercropping systems. Biological Agriculture and Horticulture 10(2): 141-154. Lab. Biotechnol., Inst. Developpement Rural, I.D.R. Km 17, B.P. 13346, Brazzaville, Congo

Mapiki, A., G. B. Reddy, et al. (1993). Fate of fertilizer-15N to a maize crop grown in Northern Zambia. Acta Agriculturae Scandinavica Section B Soil and Plant Science 43(4): 231-237. {a} Dep. Soil and Water Sci., P.O. Box 5028, Agric. Univ. Norway, N-1432, As, Norway

Marc, M. S., A. Spielmann, et al. (1993). Cloning and sequencing of a corn (Zea mays) nuclear gene coding for the chloroplast specific catalytic subunit of ferredoxin-thioredoxin reductase. Biochimica et Biophysica Acta 1183(1): 207-209. {a} Lab. Biochimie Vegetale, Univ. Neuchatel, Chemin Chantemerle 18, CH-2000 Neuchatel, Switzerland

Marchini, J. S., L. H. Vitali, et al. (1993). Determination of macronutrient and energy content levels in common Brazilian foods. Revista do Instituto Adolfo Lutz 53(1-2): 11-16. Dep. Clinica Med., Fac. Med. Ribeirao Preto, USP, 14049-900 Ribeirao Preto, SP, Brazil

Marquardt, J. and R. Bassi (1993). Chlorophyll-proteins from maize seedlings grown under intermittent light conditions: Their stoichiometry and pigment content. Planta Heidelberg 191(2): 265-273. {a} Fachbereich Biol./Botanik, Karl-von-Frischstrasse, D-35032 Marburg, Germany

Marquez, S. F. (1993). Inbreeding and yield prediction in synthetic cultivars of maize: II. Alternative methods. Crop Science 33(6): 1153-1157. Univ. Autonoma Chapingo, Centro Regional Univ. Occidente, Apartado 2-8558, Guadalajara, Jalisco 44281, Mexico

Marrs, K. A., E. S. Casey, et al. (1993). Characterization of two maize HSP90 heat shock protein genes: Expression during heat shock, embryogenesis, and pollen development. Developmental Genetics 14(1): 27-41. {a} Plant Biotechnol. Dep., Sandoz Agro Inc., 975 California Ave., Palo Alto, CA 94304, USA

Martin, A. J. and D. J. S. Montagnes (1993). Winter ciliates in a British Columbian fjord: Six new species and an analysis of ciliate putative prey. Journal of Eukaryotic Microbiology 40(5): 535-549. {a} Dep. Oceanography, Univ. British Columbia, Vancouver, British Columbia V6T 1Z4, Canada

Martin, J. P., O. C. Elavummoottil, et al. (1993). Changes on protein expression associated with salinity tolerance in Brassica cell cultures. Cell Biology International 17(9): 839-845. {a} Dep. Biologia Vegetal, E.T.S. Ingenieros Agronomos, Univ. Politecnica Madrid, Ciudad Univ., Madrid, Spain

Martins, C. R. F. and E. W. Kitajima (1993). A unique virus isolated from elephant grass. Plant Disease 77(7): 726-729. Dep. Biol. Cel., Univ. Brasilia, 70919 Brasilia, DF, Brazil

Maskina, M. S., J. F. Power, et al. (1993). Residual effects of no-till crop residues on corn yield and nitrogen uptake. Soil Science Society of America Journal 57(6): 1555-1560. {a} USDA-ARS, Univ. Nebr., Lincoln, NE 68583, USA

Masuda, Y., K. Okano, et al. (1993). Effects of feeding management on milk production and reproductive efficiency: Investigation of dairy herd in University farm. Science Bulletin of the Faculty of Agriculture Kyushu University 47(1-2): 33-42. Lab. Forage Science, Animal Behavior, Faculty Agriculture, Kyushu Univ. 46-06, Fukuoka 812, Japan

Mataruka, D. F., W. J. Cox, et al. (1993). Tillage and nitrogen source effects on growth, yield, and quality of forage maize. Crop Science 33(6): 1316-1321. {a} Dep. Soil Crop Atmospheric Sci., Cornell Univ., Ithaca, NY 14853, USA

Mathur, L. M. L. (1993). Economically viable technology for protecting maize (Zea mays) grain from bird damage. Indian Journal of Agricultural Sciences 63(2): 130-133. Cumming's Lab., Indian Agric. Res. Inst., New Delhi 110 012, India

Matsushita, Y. and K. Isono (1993). Mitochondrial transport of mitoribosomal proteins, Y mL8 and YmL20, in Saccharomyces cerevisiae. European Journal of Biochemistry 214(2): 577-585. {a} Dep. Biol., Fac. Sci., Kobe Univ., Rokkodai, Nada-ku, Kobe 657, Japan

Matzke, H. and K. Mengel (1993). Importance of plasmalemma ATPase in the retention and exclusion of inorganic ions. Zeitschrift fuer Pflanzenernaehrung und Bodenkunde 156(6): 515-519. Inst. Plant Nutrition, Justus Liebig Univ., Suedanlage 6, D-35390 Giessen, Germany

Mauri, I., M. Maddaloni, et al. (1993). Functional expression of the transcriptional activator Opaque-2 of Zea mays in transformed yeast. Molecular and General Genetics 241(3-4): 319-326. {a} Istituto Sperimentale per la Cerealicoltura, Sezione di Bergamo, Via Stezzano 24, I-24126 Bergamo, Italy

Mazzarino, M. J., L. Szott, et al. (1993). Dynamics of soil total carbon and nitrogen, microbial biomass, and water-soluble carbon in tropical agroecosystems. Soil Biology and Biochemistry 25(2): 205-214. {a} INTA-GTZ Project, P.O. Box 277, 8400 Bariloche, Argentina

McCabe, D. and P. Christou (1993). Direct DNA transfer using electric discharge particle acceleration (ACCELL technology). Plant Cell Tissue and Organ Culture 33(3): 227-236. {a} Agracetus Inc., 8520 Univ. Green, Middleton, WI 53562, USA

McDonagh, J. F., B. Toomsan, et al. (1993). Estimates of the residual nitrogen benefit of groundnut to maize in northeast Thailand. Plant and Soil 154(2): 267-277. {a} Dep. Biol. Sci., Wye Coll., Univ. London, Wye, Ashford, Kent TN25 5AH, UK

McDonald, A. H. and D. B. E. H. Van (1993). Effect of watering regimen on injury to corn and grain sorghum by Pratylenchus species. Journal of Nematology 25(4): 654-658. Grain Crops Inst., Private Bag X1251, Potchefstroom, 2520, South Africa

McGonigle, T. P. and M. H. Miller (1993). Responses of mycorrhizae and shoot phosphorus of maize to the frequency and timing of soil disturbance. Mycorrhiza 4(2): 63-68. {a} Dep. Land Resource Sci., Univ. Guelph, Guelph, ON N1G 2W1, Canada

McGonigle, T. P. and M. H. Miller (1993). Mycorrhizal development and phosphorus absorption in maize under conventional and reduced tillage. Soil Science Society of America Journal 57(4): 1002-1006. Dep. Land Resource Sci., Univ. Guelph, Guelph, ON, N1G 2W1, Canada

McKellar, R. C. (1993). Effect of preservatives and growth factors on secretion of listeriolysin O by Listeria monocytogenes. Journal of Food Protection 56(5): 380-384. Cent. Food Anim. Res., Res. Branch, Agriculture Canada, Ottawa K1A 0C6, Canada

McKenney, D. J., S. W. Wang, et al. (1993). Denitrification and mineralization in soil amended with legume, grass, and corn residues. Soil Science Society of America Journal 57(4): 1013-1020. {a} Dep. Chem. Biochem., Univ. Windsor, Windsor, ON, Canada N9B 3P4

McLachlan, S. M., C. J. Swanton, et al. (1993). Effect of corn-induced shading and temperature on rate of leaf appearance in redroot pigweed (Amaranthus retroflexus L.). Weed Science 41(4): 590-593. Dep. Crop Sci., Univ. Guelph, Guelph, ON N1G 2W1, Canada

McLachlan, S. M., M. Tollenaar, et al. (1993). Effect of corn-induced shading on dry matter accumulation, distribution, and architecture of redroot pigweed (Amaranthus retroflexus). Weed Science 41(4): 568-573. Dep. Crop Sci., Univ. Guelph, ON, N1G 2W1, Canada

McSorley, R. and R. N. Gallaher (1993). Effect of crop rotation and tillage on nematode densities in tropical corn. Journal of Nematology 25(4 Suppl.): 814-819. {a} Dep. Entomol. and Nematol., Inst. Food and Agric. Sci., Univ. Fla., Gainesville, FL 32611, USA

McSorley, R. and R. N. Gallaher (1993). Population dynamics of plant-parasitic nematodes on cover crops of corn and sorghum. Journal of Nematology 25(3): 446-453. {a} Dep. Entomol. Nematol., Inst. Food Agric. Sci., Univ. Florida, Gainesville, FL 32611, USA

McWhorter, C. G. (1993). Epicuticular wax on Johnsongrass (Sorghum halepense) leaves. Weed Science 41(3): 475-482. Plant Physiol., App. Tech. Res. Unit, USDA-ARS, Stoneville, MS 38776, USA

Medeiros, C. A. B., R. B. Clark, et al. (1993). Effects of MES (2(N-morpholino)-ethanesulfonic acid) and pH on mineral nutrient uptake by mycorrhizal and nonmycorrhizal maize. Journal of Plant Nutrition 16(11): 2255-2272. {a} EMBRAPA, CNPFT, BR 392-Km. 78, Caixa Postal 403, CEP-96001 Pelotas, RS, Brazil

Menon, M. P., K. S. Sajwan, et al. (1993). Fractionation and transport of nutrients among coal ash residues and in soil covered with fly ash-amended organic compost. Water Air and Soil Pollution 69(1-2): 209-216. {a} Sch. Sci. Technol., Savannah State Coll., Savannah, GA 31404, USA

Mercier, S. and B. Hyberg (1993). Acreage elasticities for corn and soybeans. Journal of Production Agriculture 6(4): 529-535. {a} Crops/CED/ERS/USDA, Room 1304, 1301 New York Ave. NW, Washington, DC 20005-4788, USA

Messmer, M. M., A. E. Melchinger, et al. (1993). Relationship among early European maize inbreds: II. Comparison of pedigree and RFLP data. Crop Science 33(5): 944-950. {a} Inst. Plant Breeding, Seed Sci. and Population Genetics, Univ. Hohenheim, P.O. Box 700562, W-7000 Stuttgart 70, Germany

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

Meyer, C. R., P. Rustin, et al. (1993). The effect of chemical modification by diethylpyrocarbonate on substrate and effector binding to phosphoenolpyruvate carboxylase from Crassula argentea: Evidence for a histidine residue in the malate binding site. Photosynthetica Prague 28(2): 259-272. {a} Dep. Biochemistry, Univ. California, Riverside, CA 92521, USA

Meyer, S. J., K. G. Hubbard, et al. (1993). A crop-specific drought index for corn: II. Application in drought monitoring and assessment. Agronomy Journal 85(2): 396-399. {a} Dep. Agric. Meterology, Inst. Agric. Natural Res., Univ. Nebr., Lincoln, NE 68583-0728, USA

Meyer, S. J., K. G. Hubbard, et al. (1993). A crops-specific drought index for corn: I. Model development and validation. Agronomy Journal 85(2): 388-395. {a} Dep. Agric. Meterology, Inst. Agric. Natural Res., Univ. Nebraska, Lincoln, NE 68583-0728, USA

Mian, M. A. R., E. D. Nafziger, et al. (1993). Root growth of wheat genotypes in hydroponic culture and in the greenhouse under different soil moisture regimes. Crop Science 33(2): 283-286. {a} Dep. Agron., Univ. Ill., 1102 S. Goodwin, Urbana, IL 61801, USA

Minchin, P. E. H., M. R. Thorpe, et al. (1993). A simple mechanistic model of phloem transport which explains sink priority. Journal of Experimental Botany 44(262): 947-955. {a} Horticultural Food Res. Inst., PO Box 31-313, Lower Hutt, New Zealand

Minson, D. J., T. Cowan, et al. (1993). Northern dairy feedbase 2001: 1. Summer pasture and crops. Tropical Grasslands 27(3): 131-149. {a} QDPI, Mutdapilly Res. Stn., MS 825, Ipswich, Qld 4306, Australia

Mirkova, V., M. Ivanchenko, et al. (1993). The stability of maize nuclei to restriction enzyme digestion differs with transcriptional activity. Caryologia 46(1): 63-69. Inst. Genetics, Bulgarian Academy Sci., 1113 Sofia, Bulgaria

Mishra, C. M. (1993). Performance of maize (Zea mays) varieties to fertility levels under rainfed conditions of Madhya Pradesh. Indian Journal of Agronomy 38(3): 483-485. Zonal Agric. Res. Stn., Khargone 451 001, India

Mizuno, K. (1993). Microtubule-nucleation sites on nuclei of higher plant cells. Protoplasma 173(1-2): 77-85. Dep. Biol., Fac. Sci., Osaka Univ., Machikaneyama 1-1, Toyonaka, Osaka 560, Japan

Moenke, E. and W. Schaefer (1993). Transient and stable gene expression in the fungal maize pathogen Cochliobolus heterostrophus after transformation with the beta-glucuronidase (GUS) gene. Molecular and General Genetics 241(1-2): 73-80. Inst. fuer Genbiol. Forschung Berlin GmbH, Ihnester 63, D-14195 Berlin, Germany

Mol, R., R. E. Matthys, et al. (1993). In vitro culture of fertilized embryo sacs of maize: Zygotes and two-celled proembryos can develop into plants. Planta Heidelberg 189(2): 213-217. {a} Reconnaissance Cell. Amelioration Plantes, LA INRA 879, Univ. Lyon I, 43 Blvd. du 11 Novembre, F-69622 Villeurbanne Cedex, France

Moloshok, T. D., G. M. E. Leinhos, et al. (1993). The autogenic extracellular environment of Uromyces appendiculatus urediospore germlings. Mycologia 85(3): 392-400. {a} Dep. Plant Pathol., Cornell Univ., New York State Agric. Experiment Station, Geneva, NY 14456, USA

Monks, C. D. and P. A. Banks (1993). Effect of straw, ash, tillage on dissipation of imazaquin and imazethapyr. Weed Science 41(1): 133-137. {a} Div. Plant Soil Sci., P.O. Box 6108, 1090 Agric Sci., West Va. Univ., Morgantown, WV 26506-6108, USA

Montandon, R., J. E. Slosser, et al. (1993). Factors reducing the pest status of the Russian wheat aphid (Homoptera: Aphididae) on wheat in the Rolling Plains of Texas. Journal of Economic Entomology 86(3): 899-905. Tex. Agric. Exp. Stn., P.O. Box 1658, Vernon, TX 76384, USA

Moore, K. B. and K. K. Oishi (1993). Characterization of 3-hydroxy-3-methylglutaryl-coenzyme A reductase activity during maize seed development, germination, and seedling emergence. Plant Physiology Rockville 101(2): 485-491. {a} Dep. Mol. and Cellular Biol., Univ. Arizona, Tucson, Ariz. 85721, USA

Moore, R. and E. Maimon (1993). Signal transmission during gravitropic curvature of primary roots of Zea mays. Plant Cell and Environment 16(1): 105-108. {a} Dep. Biol. Sci., Wright State Univ., Dayton, OH 45435, USA

Moore, R. and I. Miller (1993). Cellular differentiation in root caps of Zea mays that do not secrete mucilage. Plant Cell and Environment 16(8): 1003-1009. {a} Dep. Biol., Univ. Akron, Akron, OH 44325-4703, USA

Mordelet, P. (1993). Influence of tree shading on carbon assimilation of grass leaves in Lamto savanna, Cote d'Ivoire. Acta Oecologica 14(1): 119-127. Ecole Normale Superieure, Lab. Ecologie, C.N.R.S., U.R.A.-258, 46 rue d'Ulm, 75230 Paris Cedex 05, France

Moreland, D. E., F. T. Corbin, et al. (1993). Oxidation of multiple substrates by corn shoot microsomes. Pesticide Biochemistry and Physiology 47(3): 206-214. {a} USDA/ARS, North Carolina State Univ., Raleigh, NC 27695-7620, USA

Morgunov, A. I., R. J. Pena, et al. (1993). Worldwide distribution of Glu-1 alleles in bread wheat. Journal of Genetics and Breeding 47(1): 53-60. Int. Maize Wheat Improvement Cent., Lisboa 27, Apdo Postal 6-641, Col. Juarez, 06600 Mexico D.F., Mexico

Morikami, A., G. Ehara, et al. (1993). Molecular cloning and characterization of cDNAs for the gamma- and epsilon-subunits of mitochondrial F-1F-0 ATP synthase from the sweet potato. Journal of Biological Chemistry 268(23): 17205-17210. Lab. Biochem., Sch. Agric., Nagoya Univ., Chikusa-ku, Nagoya 464-01, Japan

Morris, C. F. (1993). Isolation of mature cereal embryos and embryonic axes. Crop Science 33(5): 1007-1015. USDA-ARS, Western Wheat Quality Lab., E-202 Food Sci. and Hum. Nutr. Fac. East, Wash. State Univ., Pullman, WA 99164-6394, USA

Morris, T. F., A. M. Blackmer, et al. (1993). Optimal rates on nitrogen fertilization for first-year corn after alfalfa. Journal of Production Agriculture 6(3): 344-350. {a} Dep. Agronomy, Iowa State Univ., Ames, IA 50011, USA

Morrison, T. A. and D. R. Buxton (1993). Activity of phenylalanine ammonia-lyase, tyrosine ammonia-lyase, and cinnamyl alcohol dehydrogenase in the maize stalk. Crop Science 33(6): 1264-1268. {a} USDA-ARS, Agron. Hall, Iowa State Univ., Ames, IA 50011, USA

Morton, C. A., R. G. Harvey, et al. (1993). In-furrow terbufos reduces field and sweet corn (Zea mays) tolerance to nicosulfuron. Weed Technology 7(4): 934-939. Crop Weed Sci. Dep., North Dakota State Univ., Fargo, ND 58105, USA

Motavalli, P. P., J. M. Duxbury, et al. (1993). The influence of organic soil amendments on sulfate adsorption and sulfur availability in a Brazilian oxisol. Plant and Soil 154(2): 301-308. {a} Natl. Resource Ecol. Lab., Colo. State Univ., Fort Collins, CO 80523, USA

Motavalli, P. P., K. A. Kelling, et al. (1993). Interaction of manure and nitrogen or starter fertilizer in northern corn production. Journal of Production Agriculture 6(2): 191-194. {a} Nat. Resource Ecology Lab., Colo. State Univ., Ft. Collins, CO 80523, USA

Motta, A. and G. M. Eguiazu (1993). Rehydration kinetics and biological damage in Zea mays stored at a relative humidity of the intergranular air (RHIA) of 92 percent. Grasas y Aceites 44(6): 362-364. INCABIE, Facultad Ciencias Agarias, UNR, Berutti 1886, 2000 Rosario, Argentina

Moughli, L., D. G. Westfall, et al. (1993). Use of adsorption and buffer capacity in soil testing for phosphorus. Communications in Soil Science and Plant Analysis 24(15-16): 1959-1974. {a} Dep. Soil Sci., Inst. Agron. Vet. Sci., Hassan II, Rabat, Morocco

Moutonnet, P., J. F. Pagenel, et al. (1993). Simultaneous field measurement of nitrate-nitrogen and matric pressure head. Soil Science Society of America Journal 57(6): 1458-1462. {a} CEA, Cadarache Res. Cent., DPVE, 13108 St-Paul-lez-Durance Cedex, France

Moya, R. G. and A. J. Trujillo (1993). Dryinid (Hym.: Dryinidae) parasitoids of Dalbulus leafhopper (Hom.: Cicadellidae) in Mexico. Entomophaga 38(1): 41-49. {a} Lab. Natural Las Joyas, Univ. Guadalajara, Apartado Postal 1-3933, Guadalajara, Jalisco C.P. 44100, Mexico

Mozafar, A., P. Schreiber, et al. (1993). Photoperiod and root-zone temperature: Interacting effects on growth and mineral nutrients of maize. Plant and Soil 153(1): 71-78. Inst. Plant Sci., Div. Agron., Swiss Fed. Inst. Technol., ETH Zentrum, CH-8092 Zurich, Switzerland

Mtebe, K., B. K. Ndabikunze, et al. (1993). Effect of cereal germination on the energy density of togwa. International Journal of Food Sciences and Nutrition 44(3): 175-180. Dep. Food Sci. Technol., Sokoine Univ. Agric., PO Box 3006, Morogoro, Tanzania

Muehling, K. H., S. Schubert, et al. (1993). Mechanism of sugar retention by roots of intact maize and field bean plants. Plant and Soil 155-156: 99-102. {a} Inst. Plant Nutrition Soil Sci., Christian Albrechts Univ., Olshausenstr. 40-60, D-24118 Kiel, Germany

Muehling, K. H., S. Schubert, et al. (1993). Role of plasmalemma proton ATPase in sugar retention by roots of intact maize and field bean plants. Zeitschrift fuer Pflanzenernaehrung und Bodenkunde 156(2): 155-161. {a} Inst. Plant Nutr. and Soil Sci., Christian Albrechts Univ., Olshausenstrasse 40-60, W-2300 Kiel, Germany

Mueller, J. P., W. M. Lewis, et al. (1993). Yield and quality of silage corn as altered by johnsongrass infestation. Agronomy Journal 85(1): 49-52. {a} Dep. Crop Science, North Carolina State Univ., Box 7620, Raleigh, NC 27695-7620

Muenchrath, D. A. and R. L. Phillips (1993). Relationship of maize seedling response to lysine-plus-threonine medium and whole kernel amino acid profile. Crop Science 33(5): 1095-1099. {a} Dep. Agron. and Plant Genetics, Plant Mol. Genet. Inst., 1991 Buford Circle, Univ. Minn., St. Paul, MN 55108, USA

Muhitch, M. J. (1993). In vitro metabolism of L-aspartate by maize kernels. Phytochemistry Oxford 32(5): 1125-1130. Phytoproducts Res. Unit, Natl. Center Agric. Utilization Res., USDA, ARS, Peoria, IL 61604

Mulder, T. A. and J. D. Doll (1993). Integrating reduced herbicide use with mechanical weeding in corn (Zea mays). Weed Technology 7(2): 382-389. Dep. Agron., Univ. Wisconsin, Madison, WI 53706, USA

Muller, M. L., P. E. Pilet, et al. (1993). An excision and squash technique for analysis of the cell cycle in the root quiescent centre of maize. Physiologia Plantarum 87(3): 305-312. {a} Inst. Plant Biol., Univ. Lausanne, Biology Building, CH-1015 Lausanne, Switzerland

Mumera, L. M. and F. E. Below (1993). Role of nitrogen in resistance to Striga parasitism of maize. Crop Science 33(4): 758-763. {a} Dep. Agron., Univ. Illinois, 1102 South Goodwin Ave., Urbana, IL 61801, USA

Murayama, Y., T. Matsubayashi, et al. (1993). Purification of chloroplast elongation factor Tu and cDNA analysis in tobacco: The existence of two chloroplast elongation factor Tu species. Plant Molecular Biology 22(5): 767-774. {a} Cent. Gene Res., Nagoya Univ., Nagoya 464-01, Japan

Murigneux, A., D. Barloy, et al. (1993). Molecular and morphological evaluation of doubled haploid lines in maize: 1. Homogeneity within DH lines. Theoretical and Applied Genetics 86(7): 837-842. {a} BIOCEM-Groupe LIMAGRAIN, 24 Avenue des Landais, 63170 Aubiere Cedex, France

Murphy, J. M. and E. E. Hood (1993). Molecular basis for extensin size heterogeneity in two maize varieties. Plant Molecular Biology 21(5): 885-893. {a} Dep. Biol. Molecular Biol. Program, Utah State Univ., Logan, UT 84322-5305, USA

Musil, C. F. and S. J. E. Wand (1993). Responses of sclerophyllous Ericaceae to enhanced levels of ultraviolet-B radiation. Environmental and Experimental Botany 33(2): 233-242. National Botanical Inst., Stress Ecology Res. Unit, Private Bag X16, Rondebosch, Cape Town 7700, S. Africa

Muszynski, M. G., A. Gierl, et al. (1993). Genetic and molecular analysis of a three-component transposable-element system in maize. Molecular and General Genetics 237(1-2): 105-112. {a} Dep. Agron., Iowa State Univ., Ames, IA 50011, USA

Mutafschiev, S., A. Macaya, et al. (1993). Early effects of plant cell wall fragments on plant cell growth. Plant Physiology and Biochemistry Montrouge 31(4): 459-467. {a} Institut Jacques Monod, Universite Paris 7, 2 place Jussieu, 75005 Paris, France

Myers, M. G. and R. G. Harvey (1993). Triazine-resistant common lambsquarters (Chenopodium album L.) control in field corn (Zea mays L.). Weed Technology 7(4): 884-889. Dep. Agron., Univ. Wisconsin, Madison, WI 53706, USA

Nag, A. and P. Nath (1993). Biology of cutworm, Agrotis ipsilon (Hufn.), on some natural and an artificial food. Naturalia Rio Claro 18: 57-66. Dep. Entomol. and Agric. Zool., Inst. Agric. Sci., Banaras Hindu Univ., Varanasi-221005, India

Nagy, Z., Z. Tuba, et al. (1993). Ecophysiological responses of different density maize stands under drought stress and during recovery. Photosynthetica Prague 28(3): 351-359. Dep. Botany and Plant Physiol., Agricultural Univ. Godollo, H-2103, Godollo, Hungary

Nagy, Z., Z. Tuba, et al. (1993). Correction of BA 96131695. Ecophysiological responses of different density maize stands under drought stress and during recovery. Addition of author name. Erratum published in PHOTOSYNTHETICA (PRAGUE) Vol. 29. Iss. 3. 1993. p. 426. Photosynthetica Prague 28(3): 351-359. Dep. Bot. Plant Physiol., Agric. Univ. Godollo, H-2103 Godollo, Hungary

Nair, N. G., K. Y. Cho, et al. (1993). An alternative method of nutrient supplementation in the cultivation of the common mushroom Agaricus bisporus. Australian Journal of Experimental Agriculture 33(1): 115-117. {a} NSW Agric., PMB 10, Rydalmere, N.S.W. 2116, Australia

Narwal, R. P., M. Singh, et al. (1993). Cadmium-zinc interaction in maize grown on sewer water irrigated soil. Arid Soil Research and Rehabilitation 7(2): 125-131. {a} Dep. Soil Sci., Haryana Agric. University, Hisar 125 004, India

Natorff, R., M. Balinska, et al. (1993). At least four regulatory genes control sulphur metabolite repression in Aspergillus nidulans. Molecular and General Genetics 238(1-2): 185-192. {a} Inst. Biochem. and Biophysics, Polisch Acd. Sci., 36 Rakowiecka St, 02-532 Warsaw, Poland

Navara, J., T. Jesko, et al. (1993). Water uptake by maize (Zea mays L.) root system. Biologia Bratislava 48(1): 113-117. {a} Inst. Botany, Slovak Acad. Sci., Dubravska 14, 842 23 Bratislava, Slovakia

Nazareno, N. R. X. D., P. E. Lipps, et al. (1993). Effect of levels of corn residue on the epidemiology of gray leaf spot of corn in Ohio. Plant Disease 77(1): 67-70. {a} IAPAR, C. Postal 2301, 80001 Curitiba, Parana, Brazil

Nellessen, J. E. and J. S. Fletcher (1993). Assessment of published literature on the uptake, accumulation, and translocation of heavy metals by vascular plants. Chemosphere 27(9): 1669-1680. Dep. Botany Microbiol., Univ. Okla., Norman, OK 73019, USA

Neo, K. K., S. M. Wong, et al. (1993). Nucleotide sequence and in vitro translation of the coat protein gene of cymbidium mosaic virus. Virus Genes 7(2): 157-170. {a} Dep. Bot., National University Singapore, Lower Kent Ridge Rd., Singapore 0511

Neuhaus, H. E., O. Batz, et al. (1993). Purification of highly intact plastids from various heterotrophic plant tissues: Analysis of enzymic equipment and precursor dependency for starch biosynthesis. Biochemical Journal 296(2): 395-401. {a} Pflanzenphysiologie, Fachbereich Biologie/Chemie, Universitaet Osnabrueck, Barbarastrasse 11, 49069 Osnabrueck, Germany

Neumann, P. M. (1993). Rapid and reversible modifications of extension capacity of cell walls in elongating maize leaf tissues responding to root addition and removal of NaCl. Plant Cell and Environment 16(9): 1107-1114. Plant Physiol. Lab., Fac. Agric. Eng., Technion-Israel Inst. Technol., Haifa 32000, Israel

Ney, B. and O. Turc (1993). Heat-unit-based description of the reproductive development of pea. Crop Science 33(3): 510-514. {a} INRA, Station d'Agronomie, 17 rue Sully, 21034 Dijon Cedex, France

Ngouajio, M. and E. S. Hagood, Jr. (1993). Weed control in corn (Zea mays) with primisulfuron as influenced by rate, timing, and herbicide combinations. Weed Technology 7(1): 65-69. Dep. Plant Pathol. Physiol., Weed Sci., Va. Polytech. Inst. State Univ., Blacksburg, VA 24061-0331, USA

Nilsson, N. O., T. Sall, et al. (1993). Chiasma and recombination data in plants: Are they compatible? Trends in Genetics 9(10): 344-348. Dep. Genetics, Lund Univ., Soelvegatan 29, S-223 62 Lund, Sweden

Nishikawa, S. I. and A. Nakano (1993). Identification of a gene required for membrane protein retention in the early secretory pathway. Proceedings of the National Academy of Sciences of the United States of America 90(17): 8179-8183. {a} Dep. Biol., Fac. Sci., Univ. Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan

Nishioka, D., E. A. Brisibe, et al. (1993). Ultrastructural observations in the suppression of granal development in bundle sheath chloroplasts of NADP-ME type C-4 monocot and dicot species. Japanese Journal of Crop Science 62(4): 621-627. Sch. Agriculture, Nagoya Univ., Nagoya 464-01, Japan

Niu, X., J. K. Zhu, et al. (1993). Plasma-membrane proton ATPase gene expression is regulated by sodium chloride in cells of the halophyte Atriplex nummularia L. Planta Heidelberg 190(4): 433-438. Dep. Hortic., Purdue Univ., 1165 Hortic. Building, West Lafayette, IN 47907-1165, USA

Nobel, P. S., B. Huang, et al. (1993). Root distribution, growth, respiration, and hydraulic conductivity for two highly productive agaves. Journal of Experimental Botany 44(261): 747-754. {a} Dep. Biol. and Lab. Biomed. Environ. Sci., Univ. California, Los Angeles, CA 90024, USA

Noble, A. D. and A. W. Schumann (1993). The amelioration of Pinus patula mortality on former agricultural sites through fertilisation: A bioassay and greenhouse study. South African Forestry Journal(164): 35-41. {a} Inst. Commercial Forestry Res., P.O. Box 375, Pietermaritzburg 3200, South Africa

Noble, P. (1993). Effect of potting mix texture on farm tree seedling survival in heavy soils. Agroforestry Systems 21(1): 75-78. Dep. Food Agric., Colac, Victoria, Australia

Nolte, K. D. and K. E. Koch (1993). Companion-cell specific localization of sucrose synthase in zones of phloem loading and unloading. Plant Physiology Rockville 101(3): 899-905. {a} Horticultural Sci. Dep., 1151 Fifield Hall, Univ. Florida, Gainesville, FL 32611, USA

Nonhebel, S. (1993). Effects of changes in temperature and carbon dioxide concentration on simulated spring wheat yields in the Netherlands. Climatic Change 24(4): 311-329. Dep. Theoretical Production Ecol., Agric. University, POB 430, 6700 AK Wageningen, Netherlands Antilles

Normanly, J., J. D. Cohen, et al. (1993). Arabidopsis thaliana auxotrophs reveals a tryptophan-independent biosynthetic pathway for indole-3-acetic acid. Proceedings of the National Academy of Sciences of the United States of America 90(21): 10355-10359. {a} Dep. Biochem. Mol. Biol., Univ. Mass., Amherst, MA 01003, USA

Norris, S. R., S. E. Meyer, et al. (1993). The intron of Arabidopsis thaliana polyubiquitin genes is conserved in location and is a quantitative determinant of chimeric gene expression. Plant Molecular Biology 21(5): 895-906. {a} Sect. Biochem. Biophysics, Univ. California-Davis, Davis, CA 95616, USA

O, H. I. P. (1993). Effect of tillage and fertilization on inorganic and organic soil phosphorus. Canadian Journal of Soil Science 73(3): 359-369. Dep. Renewable Resources, Macdonald Coll., McGill Univ., Ste. Anne de Bellevue, PQ H9X 3V9, Canada

O, R. B. P., W. A. Cress, et al. (1993). Root growth, water relations, abscisic acid and proline levels of drought-resistant and drought-sensitive maize cultivars in response to water stress. South African Journal of Botany 59(1): 98-104. UN/FRD Res. Unit Plant Growth Development, Botany Dep., Univ. Natal, P.O. Box 375, Pietermaritzburg 3200, South Africa

O, S. J. and W. J. Bouw (1993). Reduced rates of postemergence herbicides for weed control in sweet corn (Zea mays). Weed Technology 7(4): 995-1000. Hortic. Exp. Stn., Simcoe, ON N3Y 4N5, Canada

Obata, H. and M. Umebayashi (1993). Production of SH compounds in higher plants of different tolerance to Cd. Plant and Soil 155-156: 533-536. Fac. Bioresources, Mie Univ., Tsu, Mie 514, Japan

Obokata, J., K. Mikami, et al. (1993). Molecular heterogeneity of photosystem I: psaD, psaE, psaF, psaH, and psaL are all present in isoforms in Nicotiana spp. Plant Physiology Rockville 102(4): 1259-1267. {a} Dep. Bot., Fac. Sci., Hokkaido Univ., Sapporo 060, Japan

Ojeniyi, S. O. and G. O. Kayode (1993). Response of maize to copper and sulphur in tropical regions. Journal of Agricultural Science 120(3): 295-299. {a} Dep. Crop Production, Federal Univ. Technol., PMB 704, Akure, Nigeria

Okamura, H., A. Mimura, et al. (1993). Antioxidant activity of tannins and flavonoids in Eucalyptus rostrata. Phytochemistry Oxford 33(3): 557-561. Biotechnol. Res. Lab., Kobe Steel Ltd., 25-14, Kanondai 1-chome, Tsukuba, Ibaraki 304, Japan

Olanya, O. M., J. M. Fajemisin, et al. (1993). Incidence and geographical distribution of downy mildew on maize caused by Peronosclerospora sorghi in Nigeria. International Journal of Pest Management 39(1): 28-34. {a} Iowa State Univ., Dep. Plant Pathol., 351 Bessey Hall, Hall, Ames, IA 50011, USA

Olsen, J. K., C. R. McMahon, et al. (1993). Prediction of sweet corn phenology in subtropical environments. Agronomy Journal 85(2): 410-415. {a} Queensl. Dep. Primary Industries, Bundaberg Res. Stn., MS108, Ashfield Road, Bundaberg, Queensl. 4670, Australia

Omirulleh, S., M. Abraham, et al. (1993). Activity of a chimeric promoter with the doubled CaMV 35S enhancer element in protoplast-derived cells and transgenic plants in maize. Plant Molecular Biology 21(3): 415-428. {a} Inst. Plant Physiol., Biol. Res. Cent., Hungarian Acad. Sci., P.O. Box 521, Szeged, H-6701, Hungary

Omokawa, H., Y. Kawata, et al. (1993). Interaction between optical isomerism and plant pharmacological action, change of modes of action and chirality of 1-(alpha-methylbenzyl)-3-p-tolylurea. Pesticide Science 37(1): 107-112. Weed Sci. Cent., Utsunomiya Univ., 350 Mine, Utsunomiya, Tochigi 321, Japan

Onyezili, F. N. and J. D. Ross (1993). Iron deficiency stress responses of five graminaceous monocots. Journal of Plant Nutrition 16(5): 953-974. {a} Coll. Sci., Agric. Sci. Educ., Univ. Agric., PMB 2373, Makurdi, Nigeria

Orlovich, D. A. and A. E. Ashford (1993). Polyphosphate granules are an artefact of specimen preparation in the ectomycorrhizal fungus Pisolithus tinctorius. Protoplasma 173(3-4): 91-102. {a} Sch. Biological Sci., Univ. New South Wales, P.O. Box 1, Kensington, NSW 2033, Australia

Osterman, J. C., Y. Chiang, et al. (1993). Characterization of mutation-induced changes in the maize (Zea mays L.) ADH1-1S1108 alcohol dehydrogenase. Biochemical Genetics 31(11-12): 497-506. {a} Sch. Biological Sci., Univ. Nebr.-Lincoln, Lincoln, NE 68588-0118, USA

Oussible, M., R. R. Allmaras, et al. (1993). Subsurface compaction effects on tillering and nitrogen accumulation in wheat. Agronomy Journal 85(3): 619-625. {a} USDA-ARS, Dep. Soil Sci., Univ. Minn., Saint Paul, MN 55108, USA

Owen, M. D. K., R. G. Hartzler, et al. (1993). Woolly cupgrass (Eriochloa villosa) control in corn (Zea mays) with chloroacetamide herbicides. Weed Technology 7(4): 925-929. Dep. Agron., Iowa State Univ., Ames, IA 50011, USA

Owens, L. B. and W. M. Edwards (1993). Tillage studies with a corn-soybean rotation: Surface runoff chemistry. Soil Science Society of America Journal 57(4): 1055-1060. {a} USDA-ARS North Appalachian Exp. Watershed, P.O. Box 478, Coshocton, OH 43812

Ozeretskovskaya, O. L., N. I. Vasyukova, et al. (1993). Character of suppression of phytoalexin formation in compatible interaction of a Phytophthora infestans race and potato variety. Prikladnaya Biokhimiya i Mikrobiologiya 29(2): 328-332. A.N. Bakh Inst. Biochem., Acad. Sci. Russ., Moscow, Russia

Padgett, P. E. and R. T. Leonard (1993). Regulation of nitrate uptake by amino acids in maize cell suspension culture and intact roots. Plant and Soil 155-156: 159-162. Dep. Botany Plant Sci., Univ. California, Riverside, CA 92521, USA

Padgett, P. E. and R. T. Leonard (1993). Contamination of ammonium-based nutrient solutions by nitrifying organisms and the conversion of ammonium to nitrate. Plant Physiology Rockville 101(1): 141-146. {a} Dep. Bot. and Plant Sci., Univ. Calif., Riverside, CA 92521-0124, USA

Padhi, A. K., B. K. Sahoo, et al. (1993). Possibility and prospects of double-cropping sequences under rainfed, upland situation. Indian Journal of Agricultural Sciences 63(10): 616-620. {a} Natl. Agric. Res. Project, Orissa Univ. Agirc. and Technol., Ghumusar Udayagiri 762 100, India

Paiva, L. E., M. A. D. Andrade, et al. (1993). Effect of nitrogen levels, spaces and density on forage yield and silage quality of corn. Ciencia e Pratica 17(4): 370-376. {a} ISEPI, Ituiutaba, MG, Brazil

Pallant, E., R. A. Holmgren, et al. (1993). Using a fine root extraction device to quantify small diameter corn roots (greater than or equal to 0.025 mm) in field soils. Plant and Soil 153(2): 273-279. Dep. Environ. Sci., Allegheny Coll., Meadville, PA 16335, USA

Palmer, J. M., T. W. Short, et al. (1993). Correlation of blue light-induced phosphorylation to phototropism in Zea mays L. Plant Physiology Rockville 102(4): 1219-1225. {a} Dep. Plant Biol., Carnegie Inst. Wash., Stanford, CA 94305, USA

Palmer, J. M., T. W. Short, et al. (1993). Blue light-induced phosphorylation of a plasma membrane-associated protein in Zea mays L. Plant Physiology Rockville 102(4): 1211-1218. {a} Dep. Plant Biol., Carnegie Inst. Wash., Stanford, CA 94305, USA

Panciera, M. T., L. B. Bruce, et al. (1993). Computer-aided evaluation of forage management: Forage Manager. Journal of Natural Resources and Life Sciences Education 22(2): 163-168. {a} Agric. Forestry Exp. Stn., 533 E. Fireweed, Univ. Alaska-Fairbanks, Palmer, AK 99645, USA

Paradela, F. O. and W. J. D. Silva (1993). Chemical composition effect of corn endosperm mutants on vegetative growth of Fusarium moniliforme. Summa Phytopathologica 19(2): 102-105. {a} Inst. Agronomico Estado de Sao Paulo, Caixa Postal 28, 13100, Campinas, SP, Brazil

Paradkar, V. K. and R. K. Sharma (1993). Response of improve maize (Zea mays) varieties to nitrogen during the winter season. Indian Journal of Agronomy 38(4): 650-652. Zonal Agric. Res. Station, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Chhindwara, Madhya Pradesh 480 001, India

Paradkar, V. K. and R. K. Sharma (1993). Effect of nitrogen fertilization on maize (Zea mays) varieties under rainfed condition. Indian Journal of Agronomy 38(2): 303-304. Zonal Agric. Res. Stn., Chhindwara, Madhya Pradesh 480 001, India

Paradkar, V. K., R. K. Sharma, et al. (1993). Performance of fodder maize (Zea mays) + grain maize intercropping system under rainfed conditions. Indian Journal of Agronomy 38(3): 455-457. Zonal Agric. Res. Stn., Jawaharlal Nehru Krishi Vishwa Vidyalaya, Chhindwara, Madhya Pradesh 480 002, India

Pare, T., F. P. Chalifour, et al. (1993). Previous legumes and nitrogen fertilizer effects on mineral concentration and uptake by forage corn. Canadian Journal of Plant Science 73(2): 461-476. {a} Dep. Phytol., Fac. Sci. Agric. et Alimentation, Univ. Laval, Sainte-Foy, PQ G1K 7P4, Canada

Pare, T., F. P. Chalifour, et al. (1993). Forage-corn production and nitrogen-fertilizer replacement values following 1 or 2 years of legumes. Canadian Journal of Plant Science 73(2): 477-493. {a} Dep. Phytol., Fac. Sci. Agric. et Alimentation, Univ. Laval, Sainte-Foy, PQ G1K 7P4, Canada

Pare, T., F. P. Chalifour, et al. (1993). Residual effects of faba bean and soybean for a second or third succeeding forage-corn production. Canadian Journal of Plant Science 73(2): 495-507. {a} Dep. Phytol., Fac. Sci. Agric. et Alimentation, Univ. Laval, Sainte-Foy, PQ G1K 7P4, Canada

Parker, D. R. (1993). Novel nutrient solutions for zinc nutrition research: Buffering free zinc-2+ with synthetic chelators and P with hydroxyapatite. Plant and Soil 155-156: 461-464. Dep. Soil Environmental Sci., Univ. California, Riverside, CA 92521, USA

Paruelo, J. M. and O. E. Sala (1993). Effect of global change on maize production in the Argentinian pampas. Climate Research 3(3): 161-167. {a} Dep. Rangeland Ecosystem Science, Colo. State Univ., Fort Collins, CO 80523, USA

Pastori, G. M. and V. S. Trippi (1993). Antioxidative protection in a drought-resistant maize strain during leaf senescence. Physiologia Plantarum 87(2): 227-231. {a} Estacion Experimental Zaidin, Unidad Bioquimica Vegetal, CSIC, Apdo. 419, E-18080 Granada, Spain

Pataky, J. K. and D. M. Eastburn (1993). Comparing partial resistance to Puccinia sorghi and applications of fungicides for controlling common rust on sweet corn. Phytopathology 83(10): 1046-1051. Dep. Plant Pathol., Univ. Ill., Urbana, IL 61801, USA

Paul, J. W. and E. G. Beauchamp (1993). Nitrogen availability for corn in soils amended with urea, cattle slurry, and solid and composted manures. Canadian Journal of Soil Science 73(2): 253-266. {a} Agric. Canada Research Station, P.O. Box 1000, Agassiz, British Columbia V0M 1A0, Canada

Paul, K., M. K. Morell, et al. (1993). Amino-terminal truncations of the ribulose-bisphosphate carboxylase small subunit influence catalysis and subunit interactions. Plant Physiology Rockville 102(4): 1129-1137. {a} Plant Environ. Biol., Res. Sch. Biol. Sci., Aust. Natl. Univ., P.O. Box 475, Canberra, Australian Capital Territory 2601, Australia

Paynter, B. H. and M. D. A. Bolland (1993). Comparison of the phosphate requirements of burr medic and yellow serradella with that of wheat in the low rainfall wheatbelt of Western Australia. Australian Journal of Experimental Agriculture 33(2): 145-157. {a} Western Aust. Dep. Agriculture, Avon Districts Agric. Cent., Northam, W.A. 6401, Australia

Pecetti, L. and P. Annicchiarico (1993). Grain yield and quality of durum wheat landraces in a dry Mediterranean region of northern Syria. Plant Breeding 110(3): 242-249. Ist. Sperimentale Colutre Foraggere, Viale Piacenza 29, I-20075 Lodi, Italy

Pecina, M. (1993). Optimal plot size and shape in experiments with different hybrid maize (Zea mays L.) maturity groups. Poljoprivredna Znanstvena Smotra 58(3): 197-211. Agron. Fak. Sveucilista Zagrebu, Zavod za oplemenijvanje bilja genet. metodiku istrazivanja, Svetosimunska 25, 41 000 Zagreb, Croatia

Pedalino, M., N. J. Kipe, et al. (1993). Common bean (Phaseolus vulgaris L.) mutants defective in root nodule formation: II. Genetic analysis. Journal of Experimental Botany 44(263): 1015-1020. {a} Dep. Biological Allied Health Sci., Bloomsburg Univ., Bloomsburg, PA 17815, USA

Pedersen, E. A. and G. R. Hughes (1993). Relative occurrence of Phaeosphaeria nodorum and Mycosphaerella graminicola on spring wheat in Saskatchewan. Canadian Journal of Plant Pathology 15(2): 113-118. {a} Dep. Biol., Univ. Saskatchewan, Saskatoon, Saskatchewan S7N 0W0, Canada

Pereira, O. G., J. A. Obeid, et al. (1993). Dry matter yield and nutritive value of one variety of corn silage (Zea mays, L.) and three varieties of sorghum silage (Sorghum bicolor (L.) Moench). Revista da Sociedade Brasileira de Zootecnia 22(1): 31-38. {a} UEMA/EMAPA e Bolsista da CAPES, Brazil

Pereira, O. G., J. A. Obeid, et al. (1993). Yield and nutritive value of oats (Avena sativa), millet (Pennisetum americanum L.), and a sorghum hybrid (Sorghum bicolor x Sorghum-sudanense). Revista da Sociedade Brasileira de Zootecnia 22(1): 22-30. {a} UEMA/EMAPA e bolsista da CAPES, Brazil

Pereverzev, D. S. and E. M. Kazymov (1993). Comparative study of maize and its botanical relatives for resistance to European cornborer. Ekologiya Moscow(2): 93-96. All-Union Res. Inst. Plant Prot., St. Petersburg, Russia

Perez, M. A., R. Aguilar, et al. (1993). Characterization of ribosomal protein phosphorylation in maize axes during germination. Plant Science Limerick 94(1-2): 71-79. {a} Dep. Bioquimica, Fac. Quimica, Universidad Nacional Autonoma de Mexico, Mexico, D.F. 04510, Mexico

Peterson, C. A., M. Murrmann, et al. (1993). Location of the major barriers to water and ion movement in young roots of Zea mays L. Planta Heidelberg 190(1): 127-136. {a} Dep. Biol., Univ. Waterloo, Waterloo, Ontario, Canada N2L 3G1

Peterson, C. A. and E. Steudle (1993). Lateral hydraulic conductivity of early metaxylem vessels in Zea mays L. roots. Planta Heidelberg 189(2): 288-297. {a} Dep. Biol., Univ. Waterloo, Waterloo, ON N2L 3G1, Canada

Pfeiffer, W. and A. Hager (1993). A calcium-ATPase and a magnesium proton-antiporter are present on tonoplast membranes from roots of Zea mays L. Planta Heidelberg 191(3): 377-385. {a} Botanishces Inst., Univ. Tuebingen, Auf Morgenstelle 1, D-72076 Tuebingen, Germany

Pfister, J. A., J. B. Astorga, et al. (1993). Maternal locoweed exposure in utero and as a neonate does not disrupt taste aversion learning in lambs. Applied Animal Behaviour Science 36(2-3): 159-167. {a} USDA-ARS Poisonous Plant Res. Lab., Logan, UT 84321, USA

Phansiri, S., H. Miyake, et al. (1993). Ultrastructural analysis of cell wall formation and cell division of soybean protoplasts. Japanese Journal of Crop Science 62(3): 429-437. Sch. Agric., Nagoya Univ., Nagoya 464-01, Japan

Phiri, D. M., B. Coulman, et al. (1993). The effect of feeding maize husk and leucaena mixed or separately on the voluntary intake of the husk. Agroforestry Systems 24(3): 271-276. {a} Dep. Agric., Box 510046, Chipata, Zambia

Pierce, L. L., J. Walker, et al. (1993). Ecohydrological changes in Murray-Darling Basin: III. A simulation of regional hydrological changes. Journal of Applied Ecology 30(2): 283-294. {a} Sch. Forestry, University Montana, Missoula, Montana 59812, USA

Pierzynski, G. M. and T. J. Logan (1993). Crop, soil, and management effects on phosphorus soil test levels. Journal of Production Agriculture 6(4): 513-520. {a} Dep. Agron., Kansas State Univ., Manhattan, KS 66506, USA

Pillai, K. S., P. Rajamma, et al. (1993). New technique in the control of sweet potato weevil using synthetic sex pheromone in India. International Journal of Pest Management 39(1): 84-89. Central Tuber Crops Res. Inst., Trivandrum 695 017, Kerala, India

Pinot, F., H. Bosch, et al. (1993). Omega-Hydroxylation of oleic acid in Vicia sativa microsomes: Inhibition by substrate analogs and inactivation by terminal acetylenes. Plant Physiology Rockville 102(4): 1313-1318. {a} Dep. Entomol., Univ. Calif., Davis, CA 95616-8584, USA

Pinter, L. and Z. Burucs (1993). Effect of plant density and plant distribution within the row on grain yield and standing ability for maize. Acta Agronomica Hungarica 42(3-4): 337-348. {a} P.O. Box 71, H-8361, Hungary

Piper, J. K. (1993). Soil water and nutrient change in stands of three perennial crops. Soil Science Society of America Journal 57(2): 497-505. Land Inst., 2440 East Water Well Road, Salina, KS 67401

Pius, J., S. Eapen, et al. (1993). Isolation of sodium chloride tolerant cell lines and plants in finger millet. Biologia Plantarum Prague 35(2): 267-271. Plant Biotechnol. Sect., Bhabha Atomic Res. Cent., Trombay, Bombay, 400 085, India

Pixley, K. V. and M. S. Bjarnason (1993). Combining ability for yield and protein quality among modified-endosperm opaque-2 tropical maize inbreds. Crop Science 33(6): 1229-1234. {a} Int. Maize Wheat Improvement Cent., Lisboa 27, Apdo. 6-641, 06600 Mexico D.F., Mexico

Pollak, L. M. and J. D. Corbett (1993). Using GIS datasets to classify maize-growing regions in Mexico and Central America. Agronomy Journal 85(6): 1133-1139. {a} Fields Crops Res. Unit, USDA-ARS, Dep. Agron., Iowa State Univ., Ames, IO 50011, USA

Pollice, A., M. Ciaramella, et al. (1993). Saccharomyces cerevisiae multifunctional protein RAP1 binds to a conserved sequence in the polyoma virus enhancer and is responsible for its transcriptional activity in yeast cells. FEBS Federation of European Biochemical Societies Letters 323(1-2): 77-82. {a} Dep. Genetics, General and Mol. Biol., Univ. Naples, via Mezzocannone 8, Naples 80134, Italy

Popova, T. N. and M. A. Demetrashvili (1993). Regulation of the activity of NAD-specific isocitrate dehydrogenase from maize scutellum. Fiziologiya Rastenii Moscow 40(5): 691-697. {a} Dep. Plant Physiol. Biochem., Fac. Biol. Soil Sci., Voronezh State Univ., Universitetskaya pl. 1, Voronezh 394693, Russia

Porra, R. J., W. Schaefer, et al. (1993). The unexpected reduction of the vinyl group of chlorophyll b by sodium borohydride in methanolic extracts of maize leaves and its inhibition by 8-hydroxyquinoline. Zeitschrift fuer Naturforschung Section C Biosciences 48(9-10): 745-748. {a} Botanisches Inst., Univ. Muenchen, Menzinger Strasse 67, D-80638 Muenchen, Germany

Porra, R. J., W. Schaefer, et al. (1993). Derivation of the formyl-group oxygen of chlorophyll b from molecular oxygen in greening leaves of a higher plant (Zea mays). FEBS Federation of European Biochemical Societies Letters 323(1-2): 31-34. {a} Botanisches Institut, Universitaet Muenchen Menzinger Str. 67, W-8000 Muenchen 19, Germany

Potter, I. and S. C. Fry (1993). Xyloglucan endotransglycosylase activity in pea internodes: Effects of applied gibberellic acid. Plant Physiology Rockville 103(1): 235-241. {a} Daniel Rutherford Build., Univ. Edinburgh, King's Build., Mayfield Road, Edinburgh EH9 3JH, UK

Powell, N. L. and F. S. Wright (1993). Grain yield of subsurface microirrigated corn as affected by irrigation line spacing. Agronomy Journal 85(6): 1164-1169. {a} Va. Polytechnic Inst. State Univ., Tidewater Agric. Exp. Stn., P.O. Box 7099, Suffolk, VA 23437, USA

Pozzo, M. G., H. Giorgetti, et al. (1993). Wheat inoculation with native strains of Azospirillum: Field-experiments carried out in Patagones district. Investigacion Agraria Produccion y Proteccion Vegetales 8(1): 49-54. {a} Centro Univ. Regional Zona Atlantica, Univ. Nacional del Camahue, c.c. 149, 8500 Viedma, Rio Negro, Argentina

Premachandra, G. S., H. Saneoka, et al. (1993). Water stress and potassium fertilization in field grown maize (Zea mays L.): Effects on leaf water relations and leaf rolling. Journal of Agronomy and Crop Science 170(3): 195-201. {a} Dep. Hortic., Purdue Univ., West Lafayette, IN 47907, USA

Premalal, K. P. S. B., T. Gemma, et al. (1993). Weed suppression under the maize-soybean intercropping system. Research Bulletin of Obihiro University Natural Science 18(3): 125-132. Lab. Forage Crops, Obihiro Univ. Agric. Veterinary Med., Obihiro, Hokkaido 080, Japan

Prioli, L. M., J. Huang, et al. (1993). The plant mitochondrial open reading frame or F221 encodes a membrane-bound protein. Plant Molecular Biology 23(2): 287-295. Dep. Genet., Box 7614, North Carolina State Univ., Raleigh, NC 27695-7614, USA

Psenakova, T. and S. Kasiarova (1993). The vanadate-sensitive ATPase from plasma membrane of maize roots. Acta Societatis Botanicorum Poloniae 62(3-4): 171-173. Inst. Botany, Slovak Acad. Sci., Dubravska cesta 14, 842 23 Bratislava, Slovakia

Quintero, R. M., V. D. Espinoza, et al. (1993). Fitting plants to soil through mycorrhizal fungi: Mycorrhiza effects on plant growth and soil organic matter. Biology and Fertility of Soils 15(2): 103-106. {a} Hortic. Crops Res. Lab., USDA-ARS, 3420 N.W. Orchard Ave., Corvallis, OR 97330, USA

Quiquampoix, H., G. Bacic, et al. (1993). Quantitative aspects of the 31P-NMR detection of manganese in plant tissues. Journal of Experimental Botany 44(269): 1809-1818. {a} INRA-ENSAM, Lab. de Sci. du Sol, Place Viala, 34060 Montpellier, France

Quiquampoix, H., B. C. Loughman, et al. (1993). A 31P-NMR study of the uptake and compartmentation of manganese by maize roots. Journal of Experimental Botany 44(269): 1819-1827. {a} INRA-ENSAM, Lab. de Sci. du Sol, Place Viala, 34060 Montpellier, France

Rademacher, E. and D. Klaembt (1993). Auxin dependent growth and auxin-binding proteins in primary roots and root hairs of corn (Zea mays L.). Journal of Plant Physiology 141(6): 698-703. Bot. Inst., Univ. Bonn, Meckenheimer Allee 170, D-5300 Bonn 1, Germany

Radlowski, M., S. Bartkowiak, et al. (1993). Inhibition of the activity of aminoacyl tRNA synthetases in pollen grains of maize. Physiologia Plantarum 88(3): 391-396. {a} Inst. Plant Genetics, Polish Academy Sciences, Strzeszynska 30, PL-60-479 Poznan, Poland

Ragot, M. and D. A. Hoisington (1993). Molecular markers for plant breeding: Comparisons of RFLP and RAPD genotyping costs. Theoretical and Applied Genetics 86(8): 975-984. {a} Applied Mol. Genetics Lab., CIMMYT, Apdo. Postal 6-641, 06600 Mexico DF, Mexico

Rahman, A. and T. K. James (1993). Enhanced activity of nicosulfuron in combination with soil-applied insecticides in corn (Zea mays). Weed Technology 7(4): 824-829. Weed Res. Group, Ruakura Agric. Centre, Private Bag, Hamilton, New Zealand

Rahman, S., G. F. Vance, et al. (1993). Salinity induced effects on the nutrient status of soil, corn leaves and kernels. Communications in Soil Science and Plant Analysis 24(17-18): 2251-2269. {a} Dep. Plant, Soil Insect Sci., P.O. Box 3354, Univ. Wyoming, Laramie, WY 82071, USA

Raja, V. and S. R. V. Reddy (1993). Studies on maize legume intercropping systems under rainfed conditions. Agricultural Science Digest 13(1): 31-33. Maize Res. Stn., Amberpet, Hyderabad-500013, India

Rajagopalan, A. V., M. T. Devi, et al. (1993). Patterns of phosphoenolpyruvate carboxylase activity and cytosolic pH during light activation and dark deactivation in C-3 and C-4 plants. Photosynthesis Research 38(1): 51-60. {a} Sch. Life Sci., Univ. Hyderabad, Hyderabad 500 134, India

Rajasekhar, V. K. and R. M. Mulligan (1993). RNA editing in plant mitochondria: alpha-Phosphate is retained during C-to-U conversion in mRNAs. Plant Cell 5(12): 1843-1852. {a} Dep. Dev. Cell Biology, Univ. Calif., Irvine, CA 92717, USA

Ram, S., R. S. Dhukia, et al. (1993). Effect of residual phosphorus applied to forages and nitrogen on maize yield. Crop Research Hisar 6(3): 362-369. Dep. Agronomy, CCS Haryana Agric. univ., Hisar-125 004, India

Ramachandra, P. T. V., K. Krishnamurty, et al. (1993). Polynomial functional models to simulate crop growth in maize (Zea mays L.) cultivars. Journal of Agronomy and Crop Science 171(1): 55-64. {a} Univ. Agric. Sci., G. K. V. K. Campus, Bangalore-560 065, India

Ranells, N. N. and M. G. Wagger (1993). Crimson clover reseeding potential as affected by S-triazine herbicides. Journal of Production Agriculture 6(1): 90-93. {a} Dep. Soil Sci., North Carolina State Univ., Raleigh, NC 27695, USA

Ranells, N. N. and M. G. Wagger (1993). Crimson clover management to enhance reseeding and no-till corn grain production. Agronomy Journal 85(1): 62-67. {a} Dep. Soil Sci., North Carolina State Univ., Raleigh, NC 27695

Rao, A. C. S., J. L. Smith, et al. (1993). Cultivar and climate effects on the protein content of soft white winter wheat. Agronomy Journal 85(5): 1023-1028. {a} Dep. Crop and Soil Sci., Washington State Univ., WA 99164-6420, USA

Rao, T. P., O. Ito, et al. (1993). Differences in uptake kinetics of ammonium and nitrate in legumes and cereals. Plant and Soil 154(1): 67-72. {a} International Crops Res. Inst. Semi-Arid Tropics, Patancheru PO, AP 502 324, India

Ratcliff, S. L., D. O. Wilson, Jr., et al. (1993). Free fatty acids in shrunken-2 sweet corn seed. Crop Science 33(4): 871-873. {a} Univ. Idaho, Parma Res. and Extension Cent., Parma, ID 83660, USA

Raun, W. R., H. J. Barreto, et al. (1993). Use of stability analysis for long-term soil fertility experiments. Agronomy Journal 85(1): 159-167. {a} Dep. Agronomy, Oklahoma State Univ., Stillwater, OK 74078

Rayburn, A. L., D. P. Biradar, et al. (1993). Nuclear DNA content in F-1 hybrids of maize. Heredity 70(3): 294-300. Dep. of Agronomy, University of Illinois, Urbana, IL 61801, USA

Rayburn, A. L., W. L. Pedersen, et al. (1993). The fungicide captan reduces nuclear DNA content in maize seedlings. Pesticide Science 37(1): 79-82. {a} Dep. Agron., Turner Hall, 1102 S. Goodwin Ave., Univ. Ill., Urbana, IL 61801, USA

Reddy, A. S. N., D. Takezawa, et al. (1993). Isolation and characterization of two cDNAs that encode for calmodulin-binding proteins from corn root tips. Plant Science Limerick 94(1-2): 109-117. {a} Lab. Plant Mol. Biol. Physiology, Dep. Horticulture Landscape Architecture, Washington State Univ., Pullman, WA 99164-6414, USA

Reddy, G. B. and K. R. Reddy (1993). Fate of nitrogen-15 enriched ammonium nitrate applied to corn. Soil Science Society of America Journal 57(1): 111-115. {a} Dep. Plant Sci. and Technol, North Carolina A and T State Univ., Greensboro, NC 27411, USA

Reddy, G. N. and M. N. V. Prasad (1993). Tyrosine is not phosphorylated in cadmium induced HSP70 cognate in maize (Zea mays L.) seedlings: Role in chaperone function? Biochemical Archives 9(1): 27-32. {a} Sch. Life Sciences, Univ. Hyderabad, Hyderabad 500 134, India

Redinbaugh, M. G. and W. H. Campbell (1993). Glutamine synthetase and ferredoxin-dependent glutamate synthase expression in the maize (Zea mays) root primary response to nitrate: Evidence for an organ-specific response. Plant Physiology Rockville 101(4): 1249-1255. {a} United States Dep. Agric.-Agric. Research Serv., Crops Research Lab., Oxford, NC, 27565-1168, USA

Reeves, D. W., C. W. Wood, et al. (1993). Timing nitrogen applications for corn in a winter legume conservation-tillage system. Agronomy Journal 85(1): 98-106. {a} USDA-ARS, National Soil Dynamics Lab., P.O. Box 3439, Auburn, AL 36831-3439

Rehm, G. W. (1993). Timing sulfur applications for corn (Zea mays L.) production on irrigated sandy soil. Communications in Soil Science and Plant Analysis 24(3-4): 285-294. Dep. Soil Sci., Univ. Minn., St. Paul, MN 55108

Reichman, G. A. and T. P. Trooien (1993). Corn yield and salinity response to irrigation on slowly permeable subsoils. Soil Science Society of America Journal 57(6): 1549-1554. {a} USDA-ARS, Northern Great Plains Res. Lab., P.O. Box 459, Mandan, ND 58554-0459, USA

Ren, H., J. F. Thompson, et al. (1993). Biochemical and physiological studies of soybean beta-amylase. Phytochemistry Oxford 33(3): 541-545. {a} Section Plant Biol., Cornell Univ., Ithaca, NY 14853, USA

Renganathan, M., E. Pfundel, et al. (1993). Thylakoid lumenal pH determination using a fluorescent dye: Correlation of lumen pH and gating between localized and delocalized energy coupling. Biochimica et Biophysica Acta 1142(3): 277-292. {a} Dep. Biological Sciences, Purdue Univ., West Lafayette, IN 47907, USA

Reuveni, R., Z. A. Bar, et al. (1993). A rapid detection procedure for the HtN gene under controlled inoculation of maize with Exserohilum turcicum. Plant Disease 77(6): 580-582. {a} Div. Plant Pathol., ARO, Newe Ya'ar Experiment Station, Haifa 31-999, Israel

Ribaut, J. M., S. Schaerer, et al. (1993). Deuterium-labelled indole-3-acetic acid neo-synthesis in plantlets and excised roots of maize. Planta Heidelberg 189(1): 80-82. {a} Inst. Biologie Physiologie, Vegetales l'Univ., Batiment Biologie, CH-1015 Lausanne, Switzerland

Richards, J. E., J. Y. Daigle, et al. (1993). Nitrogen availability and nitrate leaching from organo-mineral fertilizers. Canadian Journal of Soil Science 73(2): 197-208. {a} Agric. Canada, Research Station, P.O. Box 20280, Fredericton, New Brunswick E3B 4Z7, Canada

Riedell, W. E. and P. D. Evenson (1993). Rootworm feeding tolerance in single-cross maize hybrids from different eras. Crop Science 33(5): 951-955. {a} USDA, ARS, NPA, Northern Grain Insects Res. Lab., Brookings, SD 57006, USA

Riera, L. O. and K. A. Mujeeb (1993). Polyhaploid production in the Triticeae: Wheat X Tripsacum crosses. Crop Science 33(5): 973-976. {a} Wheat Prog., CIMMYT, Lisboa 27, Apartado Postal 6-641, 06600 Mexico, Mexico

Ries, S., S. Savithiry, et al. (1993). Rapid induction of ion pulses in tomato, cucumber, and maize plants following a foliar application of dextro-adenosine. Plant Physiology Rockville 101(1): 49-55. {a} Dep. Horticulture, Mich. State Univ., East Lansing, MI 48824, USA

Ristic, Z. and D. D. Cass (1993). Dehydration avoidance and damage to the plasma and thylakoid membranes in lines of maize differing in endogenous levels of abscisic acid. Journal of Plant Physiology 142(6): 759-764. {a} Dep. Biol., Univ. South Dakota, 414 East Clark St., Vermillion, SD 57069-2390, USA

Ritchie, S. W., C. N. Lui, et al. (1993). Agrobacterium tumefaciens-mediated expression of gusA in maize tissues. Transgenic Research 2(5): 252-265. {a} Dep. Botany and Plant Pathol., Purdue Univ., West Lafayette, IN 47907, USA

Roberti, R., L. Ghisellini, et al. (1993). Biological control of blackleg of beet (Phoma betae) by Metarhizium anisopliae. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz 100(2): 203-210. Dep. Protezione Valorizzazione Agroalimentare, Univ. Bologna, Via Filippo Re, 8, 40126 Bologna, Italy

Roberts, P. M. and J. N. All (1993). Hazard for fall armyworm (Lepidoptera: Noctuidae) infestation of maize in double-cropping systems using sustainable agricultural practices. Florida Entomologist 76(2): 276-283. Dep. Entomol., University Georgia, Athens, GA 30602, USA

Roberts, S. and J. K. Rhee (1993). Critical nutrient concentration and DRIS analysis of leaf and grain from high-yielding corn. Communications in Soil Science and Plant Analysis 24(19-20): 2679-2687. {a} Irrigated Agric. Res. Extension Cent., Washington State Univ., Rte. 2, Box 2953-A, Prosser, WA 99350-9687, USA

Robertson, E. J., N. R. Baker, et al. (1993). Chloroplast thylakoid protein changes induced by low growth temperature in maize revealed by immunocytology. Plant Cell and Environment 16(7): 809-818. {a} Dep. Biol., Univ. York, Heslington, York YO1 5DD, UK

Robin, S. and M. Subramanian (1993). Studies on the shift in the association of characters in biparental progenies of maize (Zea mays L.). Crop Research Hisar 6(2): 243-246. {a} Agric. Research Station, Paramakudi-623 707, Tamil Nadu, India

Robinson, D. K., D. W. Monks, et al. (1993). Sweet corn (Zea mays) cultivar tolerance to application timing of nicosulfuron. Weed Technology 7(4): 840-843. Dep. Hortic. Sci. Crop Sci., N.C. State Univ., Raleigh, NC 27695-7609, USA

Roche, D., S. J. Temple, et al. (1993). Two classes of differentially regulated glutamine synthetase genes are expressed in the soybean nodule: A nodule-specific class and a constitutively expressed class. Plant Molecular Biology 22(6): 971-983. {a} Graduate Program in Mol. Biol., Dep. Agronomy and Horticulture, Plant Genetic Eng. Lab., New Mexico State University, Las Cruces, NM 88003, USA

Rodriguez, C. M., L. V. Madden, et al. (1993). Spread of maize chlorotic dwarf virus from infected corn and Johnsongrass by Graminella nigrifrons. Plant Disease 77(1): 55-60. {a} Dep. Plant Pathol., USDA/Agric. Res. Serv., Corn Soybean Res. Unit, Wooster, Ohio 44691

Roeckel, P. and C. Dumas (1993). Survival at 20 C and cryopreservation of isolated sperm cells from Zea mays pollen grains. Sexual Plant Reproduction 6(3): 212-216. {a} Univ. Calgry, Dep. Biol. Sci., 2500 University Dr. NW, Calgary, AB, Canadan T2N 1N4

Ronaghi, A., P. N. Soltanpour, et al. (1993). Nitrapyrin effect on corn N-15 uptake efficiency, denitrification and nitrate leaching. Communications in Soil Science and Plant Analysis 24(19-20): 2629-2639. {a} Dep. Agron., Colorado Agric. Exp. Stn., Colorado State Univ., Fort Collins 80523, USA

Rosales, R. E. (1993). Postemergence shattercane (Sorghum bicolor) control in corn (Zea mays) in northern Tamaulipas, Mexico. Weed Technology 7(4): 830-834. Res. Campo Experimental Rio Bravo, SARH-INIFAP, Apartado Postal 172, Rio Bravo, Tamaulipas 88900, Mexico

Rosenzweig, C. and D. Hillel (1993). The Dust Bowl of the 1930s: Analog of greenhouse effect in the Great Plains? Journal of Environmental Quality 22(1): 9-22. {a} Columbia Univ., New York, NY 10025

Roughan, G., B. D. Post, et al. (1993). Is acetylcarnitine a substrate for fatty acid synthesis in plants? Plant Physiology Rockville 101(4): 1157-1162. {a} Hortic. Research Inst., Private Bag 92169, Auckland, New Zealand

Royo, A. and R. Aragues (1993). Validation of salinity crop production functions obtained with the triple line source sprinkler system. Agronomy Journal 85(4): 795-800. {a} Agron. Res. Serv., Dep. Soils Irrigation, P.O. Box 727, 50080 Zaragoza, Spain

Rude, B. J. and D. L. Rankins, Jr. (1993). Evaluation of bermudagrass (Cynodon dactylon) and johnsongrass (Sorghum halepense) as alternatives to corn forage, (Zea mays) for ensiling with poultry litter. Animal Feed Science and Technology 44(1-2): 101-111. {a} Dep. Anim. and Dairy Sci., Auburn Univ., Auburn, AL 36849, USA

Ruegsegger, A. and C. Brunold (1993). Localization of gamma-glutamylcysteine synthetase and glutathione synthetase activity in maize seedlings. Plant Physiology Rockville 101(2): 561-566. {a} Pflanzenphysiol. Inst., Univ. Bern, Altenbergrain 21, CH-3013 Bern, Switzerland

Russell, D. A., D. L. Deboer, et al. (1993). Plastid targeting of E. coli beta-glucuronidase and ADP-glucose pyrophosphorylase in maize (Zea mays L.) cells. Plant Cell Reports 13(1): 24-27. {a} Monsanto Co., 700 Chesterfield Village Parkway, Chesterfield, MO 63198, USA

Ryan, P. R., J. M. Ditomaso, et al. (1993). Aluminium toxicity in roots: An investigation of spatial sensitivity and the role of the root cap. Journal of Experimental Botany 44(259): 437-446. {a} U.S. Plant Soil and Nutr. Lab., USDA-ARS, Cornell Univ., Ithaca, NY 14853, USA

Rygol, J., J. Pritchard, et al. (1993). Transpiration induces radial turgor pressure gradients in wheat and maize roots. Plant Physiology Rockville 103(2): 493-500. {a} Lehrstuhl Biotechnologie, Univ. Wuerzburg, Biozentrum, Am Hubland, D-97074 Wuerzburg, Germany

Saftner, R. A. and M. N. Martin (1993). Transport of 1-aminocyclopropane-1-carboxylic acid into isolated maize mesophyll vacuoles. Physiologia Plantarum 87(4): 535-543. {a} Hortic. Crops Quality Lab., Beltsville, Agric. Res. Cent., Agric. Res. Serv., USDA, Beltsville, MD 20705, USA

Sagan, M., B. Ney, et al. (1993). Plant symbiotic mutants as a tool to analyse nitrogen nutrition and yield relationship in field-grown peas (Pisum sativum L.). Plant and Soil 153(1): 33-45. {a} Stn. Genetique et Amelioration Plantes, INRA, Bv 1540, F-21034 Dijon Cedex, France

Sage, R. F. and J. R. Seemann (1993). Regulation of ribulose-1,5-bisphosphate carboxylase/oxygenase activity in response to reduced light intensity in C-4 plants. Plant Physiology Rockville 102(1): 21-28. {a} Dep. Botany, Univ. Ga., Athens, GA 30602, USA

Saghai, M. M. A., S. S. W. Van, et al. (1993). Gray leaf spot disease of maize: Rating methodology and inbred line evaluation. Plant Disease 77(6): 583-587. {a} Dep. Crop Soil Environ. Sci., Va. Polytechnic Inst. State Univ., Blacksburg, VA 24061, USA

Sahid, I. B. and J. B. Sugau (1993). Allelopathic effect of lantana (Lantana camara) and Siam weed (Chromolaena odorata) on selected crops. Weed Science 41(2): 303-308. Bot. Dep., Univ. Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor, Malaysia

Sahu, M. P., N. S. Solanki, et al. (1993). Effects of thiourea, thiamine and ascorbic acid on growth and yield of maize (Zea mays L.). Journal of Agronomy and Crop Science 171(1): 65-69. {a} Rajasthan Agric. Univ., Bikaner 334002, India

Saigusa, M., H. Kodama, et al. (1993). Single basal application of nitrogen fertilizer on dent corn cultivation using controlled release urea. Journal of Japanese Society of Grassland Science 39(1): 44-50. Exp. Farm Tohoku Univ., Kawatabi, Narugo, Tamatsukuri, Miyagi 989-67, Japan

Saikia, A. and S. Shadeque (1993). Nutritional evaluation of underexploited leafy vegetables of Assam. Indian Journal of Agricultural Sciences 63(7): 409-411. Dep. Hortic., Assam Agric. Univ., Jorhat 785 013, India

Sakai, W. A. and S. Yagi (1993). Ultrastructural studies on the Ca-2+ localization in the dividing cells of the maize root tip. Cell Structure and Function 18(6): 389-397. {a} Dep. Biol., Fac. Sci., Nara Women's University, Nara 630, Japan

San, F. A., M. Medarde, et al. (1993). Synthesis and biological activity of bromolignans and cyclolignans. Archiv der Pharmazie Weinheim 326(7): 421-426. {a} Dep. Organic Chemistry, Univ. Salamanca, Faculty Pharmacy, Avda. Campo Charro s/n. 37007, Salamanca, Spain

San, V. F. M. and A. R. Hallauer (1993). Inbreeding depression rates of materials derived from two groups of maize inbred lines. Revista Brasileira de Genetica 16(4): 989-1001. {a} Dep. Agron., Iowa State Univ., Ames, IA 50011, USA

San, V. F. M. and A. R. Hallauer (1993). Mass selection for adaptation in Antigua maize (Zea mays L.) composite. Journal of the Iowa Academy of Science 100(1): 9-12. {a} Iowa State Univ., Ames, IA 50011

Sanders, D. C., O. A. Bandele, et al. (1993). Nitrogen uptake within sequential vegetable cropping systems. Journal of Plant Nutrition 16(6): 1119-1136. {a} Dep. Horticulture Sci., N.C. State Univ., Raleigh, NC 27695-7609, USA

Sanderson, M. A. (1993). Aerobic stability and in vitro fiber digestibility of microbially inoculated corn and sorghum silages. Journal of Animal Science 71(2): 505-514. Texas A and M Univ. Res. Extension Center, Stephenville, TX 76401

Santos, H. P. D., R. P. Zentner, et al. (1993). Effect of crop rotation on yields, soil chemical characteristics, and economic returns of zero-till barley in southern Brazil. Soil and Tillage Research 28(2): 141-158. {a} EMBRAPA, Centro Nacional Pesquisa Trigo, Caixa Postal 569, Passo Fundo, Rio Grande do Sul, Brazil

Santos, I., J. M. Almeida, et al. (1993). Plants of Zea mays L. developed under enhanced UV-B radiation: I. Some ultrastructural and biochemical aspects. Journal of Plant Physiology 141(4): 450-456. {a} Inst. Bot., Univ. Porto, Rua do Campo Alegre 823, P-4100 Porto, Portugal

Santos, M., I. Claparol, et al. (1993). Effect of exogenous arginine, ornithine, methionine and gamma-amino butyric acid on maize (Zea Mays L.) embryogenesis, and polyamine content. Journal of Plant Physiology 142(1): 74-80. {a} Lab. Plant Tissue Culture, Dep. Agrobiol., Cent. d'Investigacio i Desenvolupament Barcelona, Jordi Girona 18-26, 08034 Barcelona, Spain

Sanwo, M. M. and D. A. Demason (1993). A comparison of alpha-amylase isozyme profiles in selected Su and high-sugar sweet corn (sh-2, su-1, su-1 se) lines (Zea mays L.). International Journal of Plant Sciences 154(3): 395-405. {a} Dep. Botany and Plant Sci., Univ. California, Riverside, CA 92521, USA

Saraiva, L. S. and C. R. D. Carvalho (1993). Genetic evidence of an internal deletion induced by B chromosomes in maize (Zea mays L.). Revista Brasileira de Genetica 16(1): 107-113. Departmento de Biologia Gral, Universidade Federal de Vicosa, 365700-000 vicosa, MG, Brasil

Saruyama, H. and N. Shinbashi (1993). Polymorphic proteins in rice seed embryo revealed by two-dimensional gel electrophoresis and their application for subspecies identification. Plant Science Limerick 90(2): 167-173. {a} Hokkaido Green-Bio Inst., Higashi 5 Kita 15, Naganuma Yubari-gun, Hokkaido 069-13, Japan

Satoh, S., H. Mori, et al. (1993). Monomeric and dimeric forms and the mechanism-based inactivation of 1-aminocyclopropane-1-carboxylate synthase. Plant and Cell Physiology 34(5): 753-760. {a} Lab. Environmental Plant Physiology, Faculty Agriculture, Tohoku Univ., Kawauchi, Aoba-ku, Sendai 980, Japan

Sattelmacher, B., J. Gerendas, et al. (1993). Interaction between root growth and mineral nutrition. Environmental and Experimental Botany 33(1): 63-73. Inst. Plant Nutrition, Soil Science, Univ. Kiel, W-2300 Kiel 1, Germany

Sawarkar, S. D., B. D. Ghode, et al. (1993). Sustainable yields of major crops in Satpura region of Madhya Pradesh. Indian Journal of Agricultural Sciences 63(10): 625-628. Zonal Agric. Res. Stn., Jawaharlal Nehru Krishi Vishwa Vidyalaya, Chhindwara, Madhya Pradesh 480 001, India

Scagliarini, S., P. Trost, et al. (1993). Light activation and molecular-mass changes of NAD(P)-glyceraldehyde-3-phosphate dehydrogenase of spinach and maize leaves. Planta Heidelberg 190(3): 313-319. {a} Dipartimento di Biol. Vegetale, Universita di Perugia, Borgo XX Giugno 74, I-06121 Perugia, Italy

Schaffer, G. F. and R. L. Peterson (1993). Modifications to clearing methods used in combination with vital staining of roots colonized with vesicular-arbuscular mycorrhizal fungi. Mycorrhiza 4(1): 29-35. Dep. Bot., Univ. Guelph, Guelph, ON N1G 2W1, Canada

Scheets, K., F. R. Khosravi, et al. (1993). Transcripts of a maize chlorotic mottle virus cDNA clone replicate in maize protoplasts and infect maize plants. Virology 193(2): 1006-1009. {a} Dep. Microbiology Molecular Genetics, Oklahoma State Univ., Stillwater, Oklahoma 74078

Schmitt, M. A., C. C. Sheaffer, et al. (1993). Preplant manure and commercial P and K fertilizer effects on alfalfa production. Journal of Production Agriculture 6(3): 385-390. {a} Dep. Soil Science, Univ. Minnesota, St. Paul, MN 55108, USA

Schnicker, B. J. and K. R. Lamkey (1993). Interpopulation genetic variance after reciprocal recurrent selection in BSSS and BSCB1 maize populations. Crop Science 33(1): 90-95. {a} USDA-ARS, Dep. Agronomy, Iowa State Univ., Ames, IA 50011

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Schopfer, P. (1993). Determination of auxin-dependent pH changes in coleoptile cell walls by a null-point method. Plant Physiology Rockville 103(2): 351-357. Biologisches Inst. II, Univ., Schaenzlestrasse 1, D-79104 Freiburg, Germany

Schortemeyer, M., B. Feil, et al. (1993). Root morphology and nitrogen uptake of maize simultaneously supplied with ammonium and nitrate in a split-root system. Annals of Botany London 72(2): 107-115. {a} Inst. Plant Sci., Swiss Federal Inst. Technol., Universitaetstr. 2, CH-8092 Zurich, Switzerland

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Schulz, A., O. Ort, et al. (1993). SC-0051, a 2-benzoylcyclohexane-1,3-dione bleaching herbicide, is a potent inhibitor of the enzyme p-hydroxyphenylpyruvate dioxygenase. FEBS Federation of European Biochemical Societies Letters 318(2): 162-166. {a} Hoechst AG, Biol. Forsch. C, H 872N, 6230 Frankfurt/M 80, Germany

Schwob, E. and K. Nasmyth (1993). CLB5 and CLB6, a new pair of B cyclins involved in DNA replication in Saccharomyces cerevisiae. Genes and Development 7(7a): 1160-1175. {a} Res. Inst. Molecular Pathol., A-1030 Vienna, Austria

Scobbie, L., W. Russell, et al. (1993). The newly extended maize internode: A model for the study of secondary cell wall formation and consequences for digestibility. Journal of the Science of Food and Agriculture 61(2): 217-225. {a} Rowett Res. Inst., Greenburn Road, Bucksburn, Aberdeen AB2 9SB, UK

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Senaratne, R., N. D. L. Liyanage, et al. (1993). Effect of potassium on nitrogen fixation of intercrop groundnut and the competition between intercrop groundnut and maize. Fertilizer Research 34(1): 9-14. Dep. Agron. Fac. Agric., Univ. Ruhuna, Mapalana, Kamburupitiya, Sri Lanka

Senior, M. L. and M. Heun (1993). Mapping maize microsatellites and polymerase chain reaction confirmation of the targeted repeats using a CT primer. Genome 36(5): 884-889. {a} United States Dep. Agric., Agric. Res. Service, Raleigh, NC 27695-7620, USA

Senthilkumar, P. and K. H. Siddiqui (1993). Compounding artificial diets for rearing of the pink stem borer, Sesamia inferens Walker. Journal of Entomological Research New Delhi 17(2): 81-89. Division Entomology, Indian Agricultural Research Institute, New Delhi 110012, India

Serna, M. D. and F. Pomares (1993). Evaluation of nitrogen availability in a soil treated with organic amendments. Communications in Soil Science and Plant Analysis 24(15-16): 1833-1844. Dep. Ecol., Inst. Valenciano Invest. Agrarias, Apartado Oficial 46113, Moncada, Valencia, Spain

Serna, S. S. O., M. H. Gomez, et al. (1993). A method to evaluate the lime-cooking properties of corn (Zea mays). Cereal Chemistry 70(6): 762-764. Cereal Quality Lab., Dep. Soil and Crop Sci., Tex. A and M Univ., College Station, TX, USA

Serratos, J. A., L. A. Blanco, et al. (1993). Generation means analysis of phenolic compounds in maize grain and susceptibility to maize weevil Sitophilus zeamais infestation. Canadian Journal of Botany 71(9): 1176-1181. {a} Dep. Biol., Univ. Ottawa, 30 Marie Curie, Ottawa, ON K1N 6N5, Canada

Seyler, R. W., Jr., A. A. Yousten, et al. (1993). Stability of pUB110 and pUB110-derived plasmids in Bacillus sphaericus 2362. Applied Microbiology and Biotechnology 39(4-5): 520-525. {a} Microbiol. Immunol. Sect., Biol. Dep., Va. Polytechnic Inst. State Univ., Blacksburg, VA 24061, USA

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Shah, Z., J. K. Khattak, et al. (1993). Fate of fertilizer nitrogen applied to soil and its effect on maize (Zea mays L.). Sarhad Journal of Agriculture 9(5): 435-446. {a} Dep. Soil Sci., NWFP AU Peshawar, Pakistan

Shaner, D. L. and B. K. Singh (1993). Phytotoxicity of acetohydroxyacid synthase inhibitors is not due to accumulation of 2-ketobutyrate and/or 2-aminobutyrate. Plant Physiology Rockville 103(4): 1221-1226. {a} American Cyanamid Company, Princeton, NJ 08543-0400, USA

Shani, U. and R. J. Hanks (1993). Model of integrated effects of boron, inert salt, and water flow on crop yield. Agronomy Journal 85(3): 713-717. {a} Arava Res. Stn., Arava R and D, M. P. Eilot 88820, Israel

Shanower, T. G., F. Schulthess, et al. (1993). The effect of larval diet on the growth and development of Sesamia calamistis Hampson (Lepidoptera: Noctuidae) and Eldana saccharina Walker (Lepidoptera: Pyralidae). Insect Science and its Application 14(5-6): 681-685. {a} ICRISAT-Patancheru, Andhra Pradesh 502 324, India

Sharaiha, R. K. and B. Hattar (1993). Intercropping and poultry manure effects on yields of corn, watermelon and soybean grown in a calcareous soil in the Jordan Valley. Journal of Agronomy and Crop Science 171(4): 260-267. {a} Plant Production Dep., Univ. Jordan, Amman, Jordan

Sharma, D. C. and C. P. Sharma (1993). Effect of chromium on growth and biological yield of maize (Zea mays L. cv. Ganga 5). Indian Journal of Plant Physiology 36(1): 61-64. {a} Dep. Botany, Lucknow Univ., Lucknow 226007, India

Shchiparev, S. M., E. A. Alieva, et al. (1993). The effect of the inhibitors of the plasma membrane ATPase on the acidification of medium by scutellums of Zea mays. Vestnik Sankt Peterburgskogo Universiteta Seriya 3 Biologiya(2): 86-88. St. Petersburg Univ., St. Petersburg, Russia

Shen, X. Y., J. Y. Dai, et al. (1993). Studies on relationship among character of canopy light interception and yield in maize populations (Zea mays L.). Acta Agronomica Sinica 19(3): 246-252. Shenyang Agric. University, Shenyang 110161, China

Shenk, J. S., S. L. Fales, et al. (1993). Using near infrared reflectance product library files to improve prediction accuracy and reduce calibration costs. Crop Science 33(3): 578-581. {a} Dep. Agron., 241 Agric. Sci. and Industries Build., Pennsylvania State Univ., University Park, PA 16802, USA

Shenk, J. S. and M. O. Westerhaus (1993). Near infrared reflectance analysis with single- and multiproduct calibrations. Crop Science 33(3): 582-584. {a} Dep. Agron., 241 Agric. Sci. and Industries Build., Pennsylvania State Univ., University Park, PA 16802, USA

Shi, L., I. Miller, et al. (1993). Immunocytochemical localization of indole-3-acetic acid in primary roots of Zea mays. Plant Cell and Environment 16(8): 967-973. {a} Dep. Biol., Univ. Akron, Akron, OH 44325-4703, USA

Shinano, T., M. Osaki, et al. (1993). Comparison of production efficiency among field crops related to nitrogen nutrition and application. Plant and Soil 155-156: 207-210. Fac. Agric., Hokkaido Univ., Sapporo 060, Japan

Shipitalo, M. J. and W. M. Edwards (1993). Seasonal patterns of water and chemical movement in tilled and no-till column lysimeters. Soil Science Society of America Journal 57(1): 218-223. {a} USDA-ARS North Appalachian Exp. Watershed, P.O. Box 478, Coshocton, OH 43812-0478, USA

Shu, T. D. and H. C. Hao (1993). Effect of plant population density on canopy net photosynthesis and their relation to grain yield in maize cultivars. Photosynthetica Prague 29(1): 25-32. Dep. Agroonomy, Agricultural Univ. Shandong, Taian, Shandong Province, China

Shuting, D., H. Changhao, et al. (1993). Rates of apparent photosynthesis, respiration and dry matter accumulation in maize canopies. Biologia Plantarum Prague 35(2): 273-277. Dep. Agronomy, Shandong Agricultural Univ., Taian 271018, Shandong, Province, China

Shutov, V. N., T. A. Bekyasheva, et al. (1993). Influence of soil properties on cesium-137 and strontium-90 radionuclides uptake by natural grasses. Pochvovedenie(8): 67-71. Inst. Radiat. Hyg., St. Petersburg, Russia

Sichani, S. A., S. Z. Parsa, et al. (1993). Relationship between soluble and extractable phosphorus in some calcareous soils of Iran. Journal of Environmental Quality 22(3): 578-583. {a} Irrigation Eng. Dep., Agric. Coll., Shiraz Univ., Shiraz, Iran

Siedlecka, A. and T. Baszynski (1993). Inhibition of electron flow around photosystem I in chloroplasts of cadmium-treated maize plants is due to cadmium-induced iron deficiency. Physiologia Plantarum 87(2): 199-202. {a} Dep. Plant Physiol., Maria Curie-Sklodowska Univ., Akademicka 19, PL-20-033 Lublin, Poland

Sigua, G. C., A. R. Isensee, et al. (1993). Influence of rainfall intensity and crop residue on leaching of atrazine through intact no-till soil cores. Soil Science 156(4): 225-232. {a} U.S. Dep. Agric., Agric. Res. Serv., Pesticide Degradation Lab., Beltsville Agric. Res. Cent., Build. 050, BARC-West, Beltsville, MD 20705, USA

Silberbush, M., E. Adar, et al. (1993). Use of an hydrophilic polymer to improve water storage and availability to crops grown in sand dunes: I. Corn irrigated by trickling. Agricultural Water Management 23(4): 303-313. {a} Ben-Gurion Univ. Negev, Jacob Blaustein Inst. Desert Res., Desert Agrobiol. Center, Sede Boker Campus 84993, Israel

Silk, G. W. and M. Wu (1993). 3' Transcript mapping of the Chlamydomonas reinhardtii chloroplast psbK mRNA using a novel method to prepare 3' end-labeled single-stranded DNA probes. Biotechniques 14(5): 830-833. {a} U.S. Dep. Agric., Agric. Res. Serv., Plant Molecular Biol. Lab., BARC-West Build. 006, Beltsville, MD 20705, USA

Silver, J. C., S. A. Brunt, et al. (1993). Regulation of two different hsp70 transcript populations in steroid hormone-induced fungal development. Developmental Genetics 14(1): 6-14. {a} Dep. Microbiol., Div. Life Sci., Univ. Toronto, Scarborough Campus, Scarborough, ON M1C 1A4, Canada

Simard, R. R. and T. T. Sen (1993). Evaluating plant-available phosphorus with the electro-ultrafiltration technique. Soil Science Society of America Journal 57(2): 404-409. {a} Res. Station, Agriculture Can., 2560 Hochelaga Blvd., Sainte-Foy, Quebec G1V 2J3, Canada

Simarmata, M. and D. Penner (1993). Protection from primisulfuron injury to corn (Zea mays) and sorghum (Sorghum bicolor) with herbicide safeners. Weed Technology 7(1): 174-179. Dep. Crop Soil Sci., Mich. State Univ., East Lansing, MI 48824, USA

Simoes, N., C. Laumond, et al. (1993). Effectiveness of Steinernema spp. and Heterorhabditis bacteriophora against Popillia japonica in the Azores. Journal of Nematology 25(3): 480-485. {a} Dep. Biologia, Universidade Azores, 9502 Ponta Delgada, Azores, Portugal

Sinclair, T. R. and S. L. Rawlins (1993). Inter-seasonal variation in soybean and maize yields under global environmental change. Agronomy Journal 85(2): 406-409. {a} USDA-ARS, Agron. Physiol. Lab., Univ. Fla, Gainesville, FL 32611, USA

Singh, A., P. S. Parmar, et al. (1993). Fluorine extractability and availability to wheat in texturally different soils. Annals of Biology Ludhiana 9(1): 136-143. Dep. Soil Sci., CCS Haryana Agric. Univ., Hisar-125 004, India

Singh, G. and M. Singh (1993). Correlation and path analysis in maize under mid-hills of Sikkim. Crop Improvement 20(2): 222-225. ICAR Res. Complex for NEH Region, Sikkim Centre, Tadong, Gangtok-737102, India

Singh, G. and O. P. Singh (1993). Intercropping compatibility of different crops with winter maize (Zea mays). Indian Journal of Agronomy 38(4): 519-522. Crop Res. Station, Narendra Deva Univ. Agric. and Technol., Ghagharaghat, Bahraich, Uttar Pradesh 271 901, India

Singh, K. K., C. Chen, et al. (1993). Respiration of sugars in spinach (Spinacia oleracea), maize (Zea mays), and Chlamydomonas reinhardtii F-60 chloroplasts with emphasis on the hexose kinases. Plant Physiology Rockville 102(2): 587-593. {a} Inst. Photobiol. Cell and Organelles, Brandeis Univ., Waltham, MA 02254, USA

Singh, M. and C. B. Lal (1993). Breeding for resistance to jassid (Amrasca devastans) and bollworm (Earias species) in Egyptian cotton (Gossypium barbadense). Indian Journal of Agricultural Sciences 63(9): 547-550. Div. Genetics, Indian Agric. Res. Inst., New Delhi 110 012, India

Singh, R., B. R. Sood, et al. (1993). Response of forage maize (Zea mays) to Azotobacter inoculation and nitrogen. Indian Journal of Agronomy 38(4): 555-558. Himachal Pradesh Krishi Vishwavidyalaya, Palampur 176 062, India

Singh, R., H. S. Sur, et al. (1993). Effect of sheet erosion on soil physical properties and yield of maize (Zea mays). International Journal of Tropical Agriculture 11(4): 294-298. {a} Dep. Soils, Punjab Agric. Univ., Ludhiana-141 004, India

Singha, D. D., N. N. Sarma, et al. (1993). Effect of rice (Oryza sativa)-based cropping sequences on soil-chemical properties and available nutrients. Indian Journal of Agricultural Sciences 63(10): 644-646. {a} Chaudhary Charan Singh Haryana Agric. Univ., Hisar 125 004, India

Sisco, P. H., R. E. Cannon, et al. (1993). Catalase-3 (Cat3) gene mapped to the long arm of chromosome 4 in maize (Zea mays L.). Journal of Heredity 84(2): 133-135. {a} U.S. Dep. Agric., Agric. Res. Serv., Raleigh, NC 27695-7620, USA

Sistachs, M. and A. Barrientos (1993). Effect of different intercroppings on guinea grass establishment (Panicum maximum Jacq.). Cuban Journal of Agricultural Science 27(1): 91-95. Instituto de Ciencia Animal, Apaartado 24, San Jose de las Lajas, La Habana, Cuba

Sistachs, M., T. Ruiz, et al. (1993). Effect of seed dosage and time of seasonal culture intercropping on guinea grass (Panicum maximum) establishment. III. Zea mays (maize). Cuban Journal of Agricultural Science 27(1): 97-101. Instituto de Ciencia Animal, Apartado 24, San Jose de las Lajas, La Habana, Cuba

Sitbon, F., S. Eklof, et al. (1993). Patterns of protein synthesis in the cambial region of Scots pine shoots during reactivation. Physiologia Plantarum 87(4): 601-608. {a} Dep. Forest Genetics and Plant Physiol., Swedish Univ. Agric. Sci., S-901 83 Umea, Sweden

Slafer, G. A. and D. J. Miralles (1993). Fruiting efficiency in three bread wheat (Triticum aestivum) cultivars released at different eras. number of grains per spike and grain weight. Journal of Agronomy and Crop Science 170(4): 251-260. {a} Plant Soil Sciences Section, Sch. Agriculture Forestry, Univ. Melbourne, Parkville, Victoria 3052, Australia

Smalley, T. J., F. T. Lasseigne, et al. (1993). Effect of aluminum on growth and chemical composition of marigolds. Journal of Plant Nutrition 16(8): 1375-1384. Dep. Hortic., Univ. Ga., Athens, GA 30602, USA

Smart, J. R., A. Weiss, et al. (1993). Modeling the influence of postdirected sethoxydim on corn yields. Agronomy Journal 85(6): 1204-1209. USDA-ARS, Subtropical Agric. Res. Lab., Weslaco, TX 78596, USA

Smith, M. A. and P. R. Carter (1993). No-till systems for corn following hay or pasture. Journal of Production Agriculture 6(1): 46-52. {a} Dep. Agron., Univ. Wis., Madison, WI 53706

Snook, M. E., R. C. Gueldner, et al. (1993). Levels of maysin and maysin analogues in silks of maize germplasm. Journal of Agricultural and Food Chemistry 41(9): 1481-1485. {a} Phytochem. Res. Unit, Russell Res. Cent., Agric. Res. Serv., U.S. Dep. Agric., P.O. Box 5677, Athens, GA 30613, USA

Snyman, L. D. and H. W. Joubert (1993). Prediction of the chemical composition and in vitro dry matter digestibility of a number of forages by near infrared reflectance spectroscopy. Suid Afrikaanse Tydskrif vir Veekunde 23(1): 20-23. {a} Onderstepoort Vet. Inst., Private Bag X5, Onderstepport, 0110 Republic of South, Central African Republic

Somers, D. A., R. A. Keith, et al. (1993). Expression of the Acc1 gene-encoded acetyl-coenzyme A carboxylase in developing maize (Zea mays L.) kernels. Plant Physiology Rockville 101(3): 1097-1101. {a} Dep. Agronomy Plant Genetics, Univ. Minnesota, St. Paul, MN 55108, USA

Sorenson, B. A., D. L. Wyse, et al. (1993). Formation and movement of carbon-14 atrazine degradation products in a sandy loam soil under field conditions. Weed Science 41(2): 239-245. {a} Dep. Agron. and Plant Gen., Univ. Minn., St. Paul, MN, USA

Spalding, E. P. and D. J. Cosgrove (1993). Influence of electrolytes on growth, phototropism, nutation and surface potential in etiolated cucumber seedlings. Plant Cell and Environment 16(4): 445-451. {a} Dep. Biol., Kline Biol. Tower, Yale Univ., P.O. Box 6666, New Haven, CT 06511, USA

Spickett, C. M., N. Smirnoff, et al. (1993). An in vivo nuclear magnetic resonance investigation of ion transport in maize (Zea mays) and Spartina anglica roots during exposure to high salt concentrations. Plant Physiology Rockville 102(2): 629-638. {a} Dep. Plant Sciences, Univ. Oxford, South Parks Road, Oxford, OX1 3RB, UK

Spunda, V., J. Kalina, et al. (1993). Responses of photosystem 2 photochemistry and pigment composition in needles of Norway spruce saplings to increased radiation level. Photosynthetica Prague 28(3): 401-413. {a} Dep. Physics, Univ. Ostrava, Brafova 7, 70103 Ostrava, Czechoslovakia

Stahl, D. J., S. R. Rodermel, et al. (1993). Co-transcription pattern of an introgressed operon in the maize chloroplast genome comprising four ATP synthase subunit genes and the ribosomal rps2. Plant Molecular Biology 21(6): 1069-1076. {a} Max Planck Inst. Mol. Genetics, Ihnerstrasse 73, W-1000 Berlin 33, Germany

Stammler, G. and E. Seemueller (1993). Specific and sensitive detection of Phytophthora fragariae var. rubi in raspberry roots by PCR amplification. Zeitschrift fuer Pflanzenkrankheiten und Pflanzenschutz 100(4): 394-400. Biologische Bundesanstalt Land-und Forstwirtschaft, Inst. Pflanzenschutz im Obstbau, Postfach 1264, D-69216 Dossenheim

Starlinger, P. (1993). What do we still need to know about transposable element Ac? Gene Amsterdam 135(1-2): 251-255. Inst. Genetics, Univ. Cologne, Weyertal 121, D-50931 Cologne, Germany

Stastny, K. (1993). Combining abilities of inbred lines originating from domestic flint maize populations. Poljoprivredna Znanstvena Smotra 58(2): 101-115. Inst. Oplemenjivanje i Proizvodnju Bilja, Marulicev trg 5, Zagreb, Croatia

Staufenbiel, R., I. Lachmann, et al. (1993). Energy and fat metabolism of cattle: Relations between dorsal fat thickness and energy uptake as well as energy balance. Monatshefte fuer Veterinaermedizin 48(2): 58-66. {a} Medizinische Tierklinik, Luisenstr. 56, O-1040 Berlin

Stecker, J. A., D. D. Buchholz, et al. (1993). Broadcast nitrogen sources for no-till continuous corn and corn following soybean. Agronomy Journal 85(4): 893-897. {a} Dep. Agron., 144 Mumford Hall, Univ. Mo., Columbia, MO 65211

Stecker, J. A., D. D. Buchholz, et al. (1993). Application placement and timing of nitrogen solution for no-till corn. Agronomy Journal 85(3): 645-650. {a} Dep. Agron., 144 Mumford Hall, Univ. Mo., Columbia, MO 65211, USA

Stefanov, K. V. P., E. Kamburova, et al. (1993). Lipid and sterol changes in Zea mays caused by lead ions. Phytochemistry Oxford 33(1): 47-51. {a} Inst. Organic Chemistry, Centre Phytochemistry, Bulgarian Academy Sciences, Sofia 1040, Bulgaria

Stemler, A. and P. A. Jursinic (1993). Oxidation-reduction potential dependence of formate binding to Photosystem II in maize thylakoids. Biochimica et Biophysica Acta 1183(2): 269-280. {a} Bot. Dep., Univ. Calif., Davis, CA 95616, USA

Stenz, H. G. and M. H. Weisenseel (1993). Electrotropism of maize (Zea mays L.) roots: Facts and artifacts. Plant Physiology Rockville 101(3): 1107-1111. {a} Botanisches Institut I, Univ. Karlsruhe, Kaiserstrasse 12, 7500 Karlsruhe, Germany

Steudle, E., M. Murrmann, et al. (1993). Transport of water and solutes across maize roots modified by puncturing the endodermis. Plant Physiology Rockville 103(2): 335-349. {a} Lehrstuhl Pflanzenoekologie, Univ. Bayreuth, D-95440 Bayreuth, Germany

Stigliani, L. and C. Resina (1993). SELOMA-1: Expert system for weed management in herbicide-intensive crops. Weed Technology 7(3): 550-559. Univ. Bari, Metapontum Agrobios, I-75010 Metaponto, Italy

Stirling, C. M., V. H. Rodrigo, et al. (1993). Chilling and photosynthetic productivity of field grown maize (Zea mays): Changes in the parameters of the light-response curve, canopy leaf CO-2 assimilation rate and crop radiation-use efficiency. Photosynthesis Research 38(2): 125-133. {a} Inst. Terrestrial Ecol., Bangor Research Unit, UWB, Deiniol Road, Bangor, Gwynedd LL57 2UP, UK

Stoehr, C., R. Tischner, et al. (1993). Characterization of the plasma-membrane-bound nitrate reductase in Chlorella saccharophila (Krueger) Nadson. Planta Heidelberg 191(1): 79-85. {a} Pflanzenphysiol. Inst. Universitaet Goettingen, Untere Karspuele 2, D-37073 Goettingen, Germany

Stout, R. G. and L. R. Griffing (1993). Transmural secretion of a highly-expressed cell surface antigen of oat root cap cells. Protoplasma 172(1): 27-37. {a} Dep. Biology, Texas A and M University, College Station, TX 77843-3258, USA

Stute, J. K. and J. L. Posner (1993). Legume cover crop options for grain rotations in Wisconsin. Agronomy Journal 85(6): 1128-1132. {a} Dep. Agron., 1575 Linden Dr., Univ. Wis., Madison, WI 53706, USA

Suenaga, K. and K. Nakajima (1993). Variation in double haploid plants of wheat obtained through wheat (Triticum aestivum) X maize (Zea mays) crosses. Plant Breeding 111(2): 120-124. {a} Dep. Cell Biol., Natl. Inst. Agrobiol. Resources, 2-1-2 Kannondai, Tsukuba, Ibaraki 305, Japan

Sukhapinda, K., M. E. Kozuch, et al. (1993). Transformation of maize (Zea mays L.) protoplasts and regeneration of haploid transgenic plants. Plant Cell Reports 13(2): 63-68. {a} DowElanco Biotechnol. Lab., 9410 Zionsville Rd., P.O. Box 68955, Indianapolis, IN 46268-1053, USA

Sulkova, A. and S. Blanarikova (1993). Effects of 1-alkyl-1-ethylpiperidinium bromide detergents on magnesium ATPase activity in Phaseolus vulgaris and Zea mays. Biologia Plantarum Prague 35(2): 299-302. {a} Chemical Inst., Fac. Natural Sci., Komensky Univ., Mlynska dolina, 842 15 Bratislava, Slovakia

Sung, F. J. M. and Y. H. Chang (1993). Biochemical activities associated with priming of sweet corn seeds to improve vigor. Seed Science and Technology 21(1): 97-105. Dep. Agron., Natl. Chung Hsing Univ., Taichung, Taiwan

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

Surprenant, J., R. Drapeau, et al. (1993). Cultivar-by-management interaction effects on timothy yield and quality evaluation. Canadian Journal of Plant Science 73(2): 445-460. {a} Res. Stn., Agric. Can., 2560 Hochelaga Blvd., Sainte-Foy, PQ G1V 2J3, Canada

Suzuki, Y. and M. Hagiwara (1993). Purification and characterization of diamine oxidase from Zea mays shoots. Phytochemistry Oxford 33(5): 995-998. Lab. Biol. Sci., Kyoritsu Women's Coll., 2-2-1, Hitotsubashi, Chiyoda-ku, Tokyo 101, Japan

Swedlund, B. and R. D. Locy (1993). Sorbitol as the primary carbon source for the growth of embryogenic callus of maize. Plant Physiology Rockville 103(4): 1339-1346. {a} Dep. Bot. Microbiol., Auburn Univ., Auburn, AL 36849, USA

Sylvia, D. M., L. C. Hammond, et al. (1993). Field response of maize to a VAM fungus and water management. Agronomy Journal 85(2): 193-198. {a} Soil Water Sci. Dep., Univ. Fla., Gainesville, FL 32611, USA

Ta, T. C., C. A. Roeske, et al. (1993). Changes in maize-stalk proteins during ear development. Physiologia Plantarum 87(1): 21-24. {a} c/o Werner, P.O. Box 30, Burlington Flats, NY 13315, USA

Takahashi, H. and T. K. Scott (1993). Intensity of hydrostimulation for the induction of root hydrotropism and its sensing by the root cap. Plant Cell and Environment 16(1): 99-103. {a} Inst. Genet. Ecol., Tohoku Univ., Katahira, Aoba-su, Sendai 980, Japan

Talukdar, N. C. and J. J. Germida (1993). Propagation and storage of vesicular-arbuscular mycorrhizal fungi isolated from Saskatchewan agricultural soils. Canadian Journal of Botany 71(10): 1328-1335. {a} Dep. Soil Sci., Univ. Saskatchewan, Saskatoon, SK S7N 0WO, Canada

Tardieu, F., J. Zhang, et al. (1993). Stomatal control by both (ABA) in the xylem sap and leaf water status: A test of a model for droughted or ABA-fed field-grown maize. Plant Cell and Environment 16(4): 413-420. {a} INRA, Lab. Agron., F 78850 Thiverval Grignon, France

Tarpley, L., J. A. Dahlberg, et al. (1993). Batch anion exchange separation and quantification of (carbon-14) hexose from (carbon-14) sucrose. Crop Science 33(2): 338-341. {a} Dep. Soil Crop Sci., Texas A and M Univ., College Station, TX 77843-2474, USA

Taylor, C. B., P. A. Bariola, et al. (1993). RNS2: A senescence-associated RNase of Arabidopsis that diverged from the S-RNases before speciation. Proceedings of the National Academy of Sciences of the United States of America 90(11): 5118-5122. {a} Dep. Energy Plant Res. Lab., Michigan State University, East Lansing, MI 48824-1312, USA

Taylor, M. G., V. Vasil, et al. (1993). Enhanced GUS gene expression in cereal/grass cell suspensions and immature embryos using the maize ubiquitin-based plasmid pAHC25. Plant Cell Reports 12(9): 491-495. {a} Lab. Plant Cell Mol. Biol., Dep. Hortic. Sci., 1143 Fifield Hall, Univ. Fla., Gainesville, FL 32611-0690, USA

Teasdale, J. R. (1993). Reduced-herbicide weed management systems for no-tillage corn (Zea mays) in a hairy vetch (Vicia villosa) cover crop. Weed Technology 7(4): 879-883. Weed Sci. Lab., US Dep. Agric., Agric. Res. Serv., Beltsville, MD 20705, USA

Teasdale, J. R. (1993). Interaction of light, soil moisture, and temperature with weed suppression by hairy vetch residue. Weed Science 41(1): 46-51. Plant Physiol., Weed Sci. Lab., U.S. Dep. Agric., Agric. Res. Serv., Beltsville, MD 20705

Tesar, M. B. (1993). Delayed seeding of alfalfa avoids autotoxicity after plowing or glyphosate treatment of established stands. Agronomy Journal 85(2): 256-263. Dep. Crop Soil Sci., Mich. State Univ., East Lansing, MI 48824, USA

Teulon, D. A. J., D. R. Penman, et al. (1993). Volatile chemicals for thrips (Thysanoptera: Thripidae) host-finding and applications for thrips pest management. Journal of Economic Entomology 86(5): 1405-1415. {a} Dep. Entomol., Penn State Univ., University Park, PA 16802, USA

Thakur, R. B. (1993). Performance of intercrops in direct-seeded rainfed rice (Oryza sativa) under deep-water ecosystem of north Bihar. Indian Journal of Agricultural Sciences 63(5): 257-260. Dep. Agron., Rajendra Agric. Univ., Pusa, Bihar 848 125, India

Thicke, F. E., M. P. Russelle, et al. (1993). Soil nitrogen mineralization indexes and corn response in crop rotations. Soil Science 156(5): 322-335. {a} USDA-Agric. Res. Serv. and Soil Sci. Dep., 439 Borlaug Hall, Univ. Minn., St. Paul, MN 55108-6028, USA

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Thomas, P. A., F. C. Felker, et al. (1993). Use of tassel-seed (Ts-5) maize for assimilate transport studies using intact or detached tassel branches. Crop Science 33(2): 325-328. {a} USDA-ARS, Natl. Center Agric. Utilization Res., Seed Biosynthesis Res. Unit, 1815 N. University St., Peoria, IL 61604, USA

Tian, G., L. Brussaard, et al. (1993). Biological effects of plant residues with contrasting chemical compositions under humid tropical conditions: Effects on soil fauna. Soil Biology and Biochemistry 25(6): 731-737. {a} L. W. Lamborn Co., Carolyn House, 26 Dingwall Rd., Croydon CR9 3EE, UK

Tian, G., B. T. Kang, et al. (1993). Mulching effect of plant residues with chemically contrasting compositions on maize growth and nutrients accumulation. Plant and Soil 153(2): 179-187. {a} c/o L. W. Lambourn and Co., Carolyn House 26 Dingwall Rd., Croydon CR9 3EE, UK

Tiwari, J. P. and S. P. Kurchania (1993). Chemical control of weeds in Indian mustard (Brassica juncea). Indian Journal of Agricultural Sciences 63(5): 272-275. Dep. Agron., Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh 482 004, India

Tiwari, K. N. and B. S. Dwivedi (1993). Fertilizer zinc demands of corn as influenced by native zinc supply in Udic Ustochrepts of Uttar Pradesh. Journal of the Indian Society of Soil Science 41(4): 793-796. Dep. Soils Agric. Chem., Chandra Shekhar Azad Univ. Agric. Technol., Kanpur, Uttar Pradesh 208 002, India

Tiwari, V. (1993). Impact of cement factory environment on soil and microbes: A preliminary survey. Advances in Plant Sciences 6(1): 103-109. Sch. Studies Botany, Jiwaji Univ., Gwalior 474 011, India

Tollenaar, M., M. Mihajlovic, et al. (1993). Corn growth following cover crops: Influence of cereal cultivar, cereal removal and nitrogen rate. Agronomy Journal 85(2): 251-255. {a} Dep. Crop Sci., Univ. Guelph, Guelph, ON N1G 2W1, Canada

Toman, J., Jr. and D. G. White (1993). Inheritance of resistance to anthracnose stalk rot of corn. Phytopathology 83(9): 981-986. Dep. Plant Pathol., Univ. Ill., Urbana, IL 61801, USA

Tomeh, E. and R. Gelderman (1993). Required number of corn and soybean plants sampled necessary to determine the elemental content of their leaves at specific accuracy and confidence levels. Communications in Soil Science and Plant Analysis 24(11-12): 1281-1293. Soil and Plant Analysis Lab., Plant Sci. Dep., South Dakota State Univ., Brookings, South Dakota 57007, USA

Tonhasca, A., Jr. (1993). Carabid beetle assemblage under diversified agroecosystems. Entomologia Experimentalis et Applicata 68(3): 279-285. Dep. Entomol., Univ. Ariz., Tucson, AZ 85721, USA

Torbert, H. A., R. G. Hoeft, et al. (1993). Short-term excess water impact on corn yield and nitrogen recovery. Journal of Production Agriculture 6(3): 337-344. {a} Dep. Agronomy, 1102 S. Goodwin Avenue, Univ. Ill., Urbana, IL 61801, USA

Travis, A. J., S. D. Murison, et al. (1993). Estimation of plant cell wall thickness and cell size by image skeletonization. Journal of Agricultural Science 120(3): 279-287. Rowett Research Inst., Greenburn Rd., Bucksburn, Aberdeen AB2 9SB, UK

Treat, C. L. and W. F. Tracy (1993). Contributions of dent corn germplasm to stalk and root quality in sweet corn. Journal of the American Society for Horticultural Science 118(6): 885-889. {a} Dep. Agronomy, Univ. Wis.-Madison, Madison, WI 53706, USA

Truman, C. C., G. J. Gascho, et al. (1993). Seasonal phosphorus losses in runoff from a coastal plain soil. Journal of Production Agriculture 6(4): 507-513. {a} USDA-ARS, Southeast Watershed Res. Lab., P.O. Box 946, Tifton, GA 31793, USA

Tshivhandekano, T. R. and O. A. M. Lewis (1993). Differences in response between nitrate- and ammonium-fed maize to salinity stress and its amelioration by potassium. South African Journal of Botany 59(6): 597-601. {a} Dep. Bot., Univ. Venda, Private Bag X5050, Thohoyandou, Venda, South Africa

Turcich, M. P., D. A. Hamilton, et al. (1993). Isolation and characterization of pollen-specific maize genes with sequence homology to ragweed allergens and pectate lyases. Plant Molecular Biology 23(5): 1061-1065. {a} Dep. Biological Sci., Cent. Mol. Genet., Univ. Albany, State Univ. New York, Albany, NY 12222, USA

Turlings, T. C. J., P. J. McCall, et al. (1993). An elicitor in caterpillar oral secretions that induces corn seedlings to emit chemical signals attractive to parasitic wasps. Journal of Chemical Ecology 19(3): 411-425. {a} Insect Attractants, Behavior, and Basic Biology Res. Lab., Agric. Res. Service, U.S. Dep. Agric., P.O. Box 14565, Gainesville, FL 32604

Turnbull, M. H., D. Doley, et al. (1993). The dynamics of photosynthetic acclimation to changes in light quantity and quality in three Australian rainforest tree species. Oecologia Heidelberg 94(2): 218-228. {a} Dep. Botany, Cent. Conservation Biol., Univ. Queensland, St. Lucia, Queensland 4072, Australia

Turner, L. B. and C. J. Pollock (1993). The effects of temperature and pH on the apparent Michaelis constant of glutathione reductase from maize (Zea mays L.). Plant Cell and Environment 16(3): 289-295. {a} AFRC Inst. Grassland Environ. Res., Plas Gogerddan, Aberystwyth, Dyfed SY23 3EB, UK

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Uchida, S. (1993). Studies on the evaluation of dry matter content and feeding value in silage: VI. Estimation and application of toluene distillation method, freeze drying method and gas chromatography for moisture determination. Journal of Japanese Society of Grassland Science 39(2): 155-161. Fac. Agric., Okayama Univ., Okayama 700, Japan

Undersander, D. J., W. T. Howard, et al. (1993). Milk per acre spreadsheet for combining yield and quality into a single term. Journal of Production Agriculture 6(2): 231-235. {a} Dep. Dairy Sci., Univ. Wis., Madison, WI 53706, USA

Unger, P. W. (1993). Residual effects of soil profile modification on water infiltration, bulk density, and wheat yield. Agronomy Journal 85(3): 656-659. USDA-ARS, P.O. Drawer 10, Bushland, TX 79012, USA

Utsunomiya, E. and S. Muto (1993). Carbonic anhydrase in the plasma membranes from leaves of C-3 and C-4 plants. Physiologia Plantarum 88(3): 413-419. Graduate Div. Biochemical Regulation, Sch. Agricultural Sciences, Nagoya Univ., Furo-cho, Chikusa-ku, Nagoya 464-01, Japan

Vain, P., M. D. McMullen, et al. (1993). Osmotic treatment enhances particle bombardment-mediated transient and stable transformation of maize. Plant Cell Reports 12(2): 84-88. {a} Dep. Agron., Ohio State Univ., Wooster, OH 44691, USA

Valles, S. M. and J. L. Capinera (1993). Response of larvae of the southern armyworm, Spodoptera eridania (Cramer) (Lepidoptera: Noctuidae), to selected botanical insecticides and soap. Journal of Agricultural Entomology 10(3): 145-153. Dep. Entomol. Nematol., Univ. Florida, Gainesville, FL 32611-0620, USA

Valverde, M. E., P. F. Moghaddam, et al. (1993). Yield and quality of huitlacoche on sweet corn inoculated with Ustilago maydis. Hortscience 28(8): 782-785. {a} Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Unidad Irapuato, Apartado Postal 629, Irapuato, GTO, Mexico

Van, D. W. A., N. M. Van, et al. (1993). Contribution of physiological and morphological plant traits to a species' competitive ability at high and low nitrogen supply: A hypothesis for inherently fast- and slow-growing monocotyledonous species. Oecologia Heidelberg 94(3): 434-440. {a} DLO-Cent. Agrobiol. Res., P.O. Box 14, 6700 AA Wageninge, Netherlands Antilles

Van, D. W. G. and L. M. J. Van (1993). Interaction between the effects of phytochrome and gibberellic acid on the senescence of Alstroemeria pelegrina leaves. Physiologia Plantarum 89(1): 182-186. {a} Agrotechnological Res. Inst., PO Box 17, 6700 AA Wageningen, Netherlands

Van, D. W. H. M. G. (1993). The effect of plastic mulch and greenhouse-raised seedlings on yield of maize. Journal of Agronomy and Crop Science 170(4): 261-269. DLO-Centre Agrobiological Res., P.O. Box 14, 6700 AA Wageningen, Netherlands Antilles

Van, D. W. H. M. G. and M. Tollenaar (1993). The effect of damage to the root system caused by inter-row cultivation on growth of maize. Journal of Agronomy and Crop Science 171(1): 31-35. DLO-Centre Agrobiological Res., P.O. Box 14, 6700 AA Wageningen, The Netherlands

Van, E. H. M. (1993). Evaluation of temporal, spatial, and tillage-induced variability for parameterization of soil infiltration. Geoderma 60(1-4): 187-199. Dep. Soil, Crop and Atmospheric Sciences, Cornell University, Ithaca, NY 14853-1901, USA

Van, H. M. J. J. and D. W. Ow (1993). Prospects of applying a combination of DNA transposition and site-specific recombination in plants: A strategy for gene identification and cloning. Plant Molecular Biology 23(3): 525-533. {a} Dep. Genet., Inst. Mol. Biol. Sci., Biocent. Amsterdam, De Boelelaan 1087, 1081 HV Amsterdam, Netherlands

Van, M. J., L. L. Berger, et al. (1993). An integrated, dynamic model of feed hydration and digestion, and subsequent bacterial mass accumulation in the rumen. British Journal of Nutrition 70(2): 471-483. {a} Dep. Animal Sciences, University Illinois, Urbana, IL 61801, USA

Van, R. H. and B. H. Janssen (1993). Nutrient fluxes in the shifting cultivation system of south-west Cote d'Ivoire: II. Short-term and long-term effects of burning on yield and nutrient uptake of food crops. Plant and Soil 154(2): 179-188. Dep. Soil Sci. and Plant Nutr., Wageningen Agric. Univ., P.O. Box 8005, 6700 EC Wageningen, Netherlands

Van, S. J. and F. E. Drewes (1993). Cytokinin biosynthesis in germinating maize embryos. Journal of Experimental Botany 44(265): 1411-1414. {a} NU Res. Unit Plant Growth Dev., Dep. Botany, Univ. Natal, P.O. Box 375, Pietermaritzburg 3200, South Africa

Vangessel, M. J. and H. D. Coble (1993). Postemergence control of johnsongrass and its effect on maize dwarf mosaic virus incidence and vectors in corn. Plant Disease 77(6): 613-618. {a} Dep. Plant Pathol. Weed Sci., Colo. State Univ., Fort Collins, CO 80523, USA

Vangessel, M. J. and H. D. Coble (1993). Effect of nitrogen and moisture stress on severity of maize dwarf mosaic virus infection in corn seedlings. Plant Disease 77(5): 489-491. {a} Dep. Plant Pathol. and Weed Sci., Colo. State Univ., Fort Collins 80523, USA

Vantoai, T. T. (1993). Field performance of abscisic acid-induced flood-tolerant corn. Crop Science 33(2): 344-346. Soil Drainage Res. Unit, USDA-ARS, 590 Woody Hayes Dr., Columbus, OH 43210, USA

Vanzant, E. S. and R. C. Cochran (1993). Step-up protein supplementation for beef cows grazing dormant, tallgrass prairie. Journal of Production Agriculture 6(2): 236-240. {a} Dep. Animal Sci. Industry, Kansas State Univ., Manhattan, KS 66506

Varanini, Z., R. Pinton, et al. (1993). Low molecular weight humic substances stimulate proton-ATPase activity of plasma membrane vesicles isolated from oat (Avena sativa L.) roots. Plant and Soil 153(1): 61-69. {a} Dep. Plant Prod. and Agric. Technol., Univ. Udine, via delle Scienze 208, I-33100 Udine, Italy

Varney, G. T. and M. J. Canny (1993). Rates of water uptake into the mature root system of maize plants. New Phytologist 123(4): 775-786. Biol. Dep., Carleton Univ., Ottawa, Can. K1S 5B6

Vasal, S. K., G. Srinivasan, et al. (1993). Heterosis and combining ability of CIMMYT's quality protein maize germplasm: II. Subtropical. Crop Science 33(1): 51-57. {a} Int. Maize Wheat Improvement Cent., Lisboa 27, Apdo. Postal 6-641, 06600 Mexico, D.F., Mexico

Vasal, S. K., G. Srinivasan, et al. (1993). Heterosis and combining ability of CIMMYT's quality protein maize germplasm: I. Lowland tropical. Crop Science 33(1): 46-51. {a} Int. Maize Wheat Improvement Cent., Lisboa 27, Apdo. Postal 6-641, 06600 Mexico D.F., Mexico

Vaughn, S. F. and G. F. Spencer (1993). Volatile monoterpenes as potential parent structures of new herbicides. Weed Science 41(1): 114-119. Bioactive Constituents Res., Natl. Center Agric. Utilization Res., 1815 N. University St., Peoria, IL 61604, USA

Vawter, L. and W. M. Brown (1993). Rates and patterns of base change in the small subunit ribosomal RNA gene. Genetics 134(2): 597-608. {a} Museum Comparative Zool., Harvard Univ., Cambridge Massachusetts 02138, USA

Vekhov, N. V. (1993). The fauna of fairy shrimps (Anostraca) and tadpole shrimps (Notostraca) in reservoirs of forest steppe and steppe zones of eastern Europe, Northern Kazakhstan and Siberia. Sibirskii Biologicheskii Zhurnal(3): 43-50. Inst. Prot. Nat. Reserve, Minist. Health Ecol. Nat. Resources Russl, Moscow, Russia

Venkateswarlu, B. and K. Ramesh (1993). Cell membrane stability and biochemical response of cultured cells of groundnut under polyethylene glycol-induced water stress. Plant Science Limerick 90(2): 179-185. {a} Div. Crop Sci., Central Research inst. Dryland Agric., Hyderabad 300 659, India

Ventura, W. and I. Watanabe (1993). Green manure production of Azolla microphylla and Sesbania rostrata and their long-term effects on rice yields and soil fertility. Biology and Fertility of Soils 15(4): 241-248. {a} Int. Rice Res. Inst., Div. Soil Microbiol., P.O. Box 933, Manila, Philippines

Verburg, J. G., S. H. Rangwala, et al. (1993). Examination of the role of tyrosine-174 in the catalytic mechanism of the Arabidopsis thaliana chitinase: Comparison of variant chitinases generated site-directed mutagenesis and expressed in insect cells using baculovirus vectors. Archives of Biochemistry and Biophysics 300(1): 223-230. {a} Dep. Protein Biochem., Monsanto Corp. Res., Chesterfield, MO 63198, USA

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Vergne, P., F. Riccardi, et al. (1993). Identification of a 32-kDa anther marker protein for androgenic response in maize, Zea mays L. Theoretical and Applied Genetics 86(7): 843-850. {a} ENS Lyon, Reconnaissance Cellulaire et Amelioration des Plantes, INRA 23879, CNRS 9938, 69364 Lyon Cedex 07, France

Vikman, P. A. and J. K. Vessey (1993). Gas-exchange activity, carbohydrate status, and protein turnover in root nodule subpopulations of field pea (Pisum sativum L. cv. Century). Plant and Soil 151(1): 31-38. Dep. Plant Sci., Univ. Manitoba, Winnipeg, Manitoba, Can. R3T 2N2

Vogel, H. (1993). Tillage effects on maize yield, rooting depth and soil water content on sandy soils in Zimbabwe. Field Crops Research 33(4): 367-384. Deutsche Gesellschaft fuer Technische Zusammenarbeit GmbH, Conservation Tillage Project, PO Box BW 415, Borrowdale, Harare, Zimbabwe

Vyas, J. and R. M. Puranik (1993). Inhibition of nitrate reductase activity by mercury in bean leaf segments. Indian Journal of Plant Physiology 36(1): 57-60. {a} Sch. Biochemistry, Devi Ahilya Vishwavidyalaya, Khandwa Road, Indore 452001, India

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Wagger, M. G. and D. K. Cassel (1993). Corn yield and water-use efficiency as affected by tillage and irrigation. Soil Science Society of America Journal 57(1): 229-234. {a} Dep. Soil Sci., North Carolina State Univ., Raleigh, NC 27695, USA

Wakamiya, I., R. J. Newton, et al. (1993). Genome size and environmental factors in the genus Pinus. American Journal of Botany 80(11): 1235-1241. {a} Dep. Forest Sci., Texas A and M Univ., Texas Agric. Exp. Stn, College Station, TX 77843, USA

Walker, S. and T. C. Hsiao (1993). Osmoticum, water and dry matter deposition rates in the growth zone of Sorghum leaves under water deficit conditions. Environmental and Experimental Botany 33(3): 447-456. Soil Irrigation Res. Inst., Private Bag X79, Pretoria 0001, South Africa

Walsh, J. D., M. S. Defelice, et al. (1993). Soybean (Glycine max) herbicide carryover to grain and fiber crops. Weed Technology 7(3): 625-632. {a} American Cyanamid Co., 1545 West Stonehenge, Sycamore, IL 61078, USA

Walsh, J. D., M. S. Defelice, et al. (1993). Influence of tillage on soybean (Glycine max) herbicide carryover to grass and legume forage crops in Missouri. Weed Science 41(1): 144-149. {a} American Cynamide Co., 1545 West Stonehenge, Sycamore, IL 60178, USA

Wang, G. L., Z. X. Qian, et al. (1993). Cloning and sequencing of the gene encoding 10 kD zein of maize. Acta Botanica Sinica 35(7): 547-551. Gene Res. Cent., Inst. Botany, Academia Sinica, Beijing 100044, China

Wang, T. B., M. Niizeki, et al. (1993). Establishment of somatic hybrid cell lines between Zea mays L. (maize) and Triticum sect. trititrigia MacKey (trititrigia). Theoretical and Applied Genetics 86(2-3): 371-376. {a} Inst. Bot., Acad. Sinica, Beijing, China

Wardle, D. A., G. W. Yeates, et al. (1993). Response of soil microbial biomass and plant litter decomposition to weed management strategies in maize and asparagus cropping systems. Soil Biology and Biochemistry 25(7): 857-868. {a} AgResearch, Ruakura Agric. Cent., Private Bag 3123, Hamilton, New Zealand

Wassmann, R., H. Schuetz, et al. (1993). Quantification of methane emissions from Chinese rice fields (Zhejiang Province) as influenced by fertilizer treatment. Biogeochemistry Dordrecht 20(2): 83-101. {a} Fraunhofer-Institut fuer Atmosphaerische Umweltforschung, Garmisch-Partenkirchen, Germany

Watiki, J. M., S. Fukai, et al. (1993). Radiation interception and growth of maize/cowpea intercrop as affected by maize plant density and cowpea cultivar. Field Crops Research 35(2): 123-133. Dep. Agric., Univ. Queensland, Brisbane, Queensland 4072, Australia

Watt, M., M. E. McCully, et al. (1993). Plant and bacterial mucilages of the maize rhizosphere: Comparison of their soil binding properties and histochemistry in a model system. Plant and Soil 151(2): 151-165. {a} Dep. Biol., Carleton University, Ottawa, Can. K1S 5B6

Webster, J. A., D. R. Porter, et al. (1993). Resistance to Russian wheat aphid (Homoptera: Aphididae) in barley: Effects on aphid feeding. Journal of Economic Entomology 86(5): 1603-1608. Plant Sci. Water Conservation Lab., USDA-ARS, 1301 N. Western, Stillwater, OK 74075, USA

Wegloehner, W. and A. R. Subramanian (1993). Nucleotide sequence of maize chloroplast rpl32: Completing the apparent set of plastid ribosomal protein genes and their tentative operon organization. Plant Molecular Biology 21(3): 543-548. {a} Max-Planck-Inst. Mol. Genetik, Abt. Wittmann, Ihnestr. 73, 1000 Berlin 33, Germany

Wegmueller, U. (1993). Signature research for crop classification by active and passive microwaves. International Journal of Remote Sensing 14(5): 871-883. JPL/CALTECH, MS 300-233, 4800 Oak Grove Drive, Pasadena, CA 91109, USA

Weiss, D., D. L. A. H. Van, et al. (1993). The petunia homologue of the Antirrhinum majus candi and Zea mays A2 flavonoid genes; Homology to flavanone 3-hydroxylase and ethylene-forming enzyme. Plant Molecular Biology 22(5): 893-897. {a} Dep. Genetics, Vrije Univ., De Boelelaan 1087, 1081 HV Amsterdam, Netherlands Antilles

Welbaum, G. E. (1993). Water relations of seed development and germination in muskmelon (Cucumis melo L.) VIII. Development of osmotically distended seeds. Journal of Experimental Botany 44(265): 1245-1252. Dep. Horticulture, Va. Polytechnic Inst. State Univ., Blacksburg, VA 24061-0327, USA

Welch, R. M., M. E. Smith, et al. (1993). Improving the mineral reserves and protein quality of maize (Zea mays L.) kernels using unique genes. Plant and Soil 155-156: 215-218. {a} USDA-ARS U.S. Plant Soil Nutrition Lab., Ithaca, NY, USA

Wells, K. L., G. Henson, et al. (1993). Content of some heavy metals in soil and corn grain. Communications in Soil Science and Plant Analysis 24(19-20): 2617-2628. Dep. Agron., Univ. Ky., Lexington, KY 40546-0091, USA

Welz, H. G., S. Leath, et al. (1993). Sporulation by races 0,2, and 3 of Cochliobolus carbonum on synthetic medium and sterilized corn leaves. Plant Disease 77(11): 1153-1157. {a} Wissenschaftlicher Mitarbeiter, Inst. Plant Breeding, Seed Sci. Population Genetics, University Hohenheim, 70593 Stuttgart, Germany

Welz, H. G. and K. J. Leonard (1993). Phenotypic variation and parasitic fitness of races of Cochliobolus carbonum on corn in North Carolina. Phytopathology 83(6): 593-601. {a} Wissenschaftlicher Mitarbeiter, FSP Biotechnologie Pflanzenzuechtung, Univ. Hohenheim, 7000 Stuttgart 70, Germany

Werck, R. D., Y. Batard, et al. (1993). Monospecific polyclonal antibodies directed against purified cinnamate 4-hydroxylase from Helianthus tuberosus: Immunopurification, immunoquantitation, and interspecies cross-reactivity. Plant Physiology Rockville 102(4): 1291-1298. {a} Dep. d'Enzymol. Cell. Mol., Inst. Biol. Mol. Plantes, Cent. Natl. Rech. Sci. UPR 406, 28 rue Goethe, 67000 Strasbourg, France

Weston, P. A., R. J. Barney, et al. (1993). Planting date influences preharvest infestation of dent corn by Angoumois grain moth (Lepidoptera: Gelechiidae). Journal of Economic Entomology 86(1): 174-180. Community Res. Serv., Ky. State Univ., Frankfort, KY 40601

White, I. R., A. Wise, et al. (1993). Evidence for G-protein-linked receptors in higher plants: Stimulation of GTP-gamma-S binding to membrane fractions by the mastoparan analogue mas 7. Planta Heidelberg 191(2): 285-288. {a} Dep. Biochem. Molecular Biol., Univ. Leeds, Leeds, West Yorkshire LS2 9JT, UK

Whiting, K. R. and R. K. Crookston (1993). Host-specific pathogens do not account for the corn-soybean rotation effect. Crop Science 33(3): 539-543. {a} 1520 Wildwood Dr., Mt. Zion, IL 62549, USA

Wicks, G. A., A. R. Martin, et al. (1993). Control of triazine-resistant kochia (Kochia scoparia) in conservation tillage corn (Zea mays). Weed Science 41(2): 225-231. Univ. Nebr., Dep. Agron., West Cent. Res. and Ext. Cent., North Platte, NE 69101, USA

Widstrom, N. W., K. Bondari, et al. (1993). Heterosis among insect-resistant maize populations. Crop Science 33(5): 989-994. {a} Insect Biol. and Population Management Res. Lab., USDA-ARS, P.O. Box 748, Tifton, GA 31793-0748, USA

Wiedenroth, E. M. and M. B. Jackson (1993). Depletion of oxygen in roots of wheat and maize by respiration following encasement in olive oil. Annals of Botany London 71(5): 427-430. {a} Dep. Biology, Humboldt-Univ., Phillipstrasse 13, O-1040 Berlin, Germany

Wiersma, D. W., P. R. Carter, et al. (1993). Kernel milkline stage and corn forage yield, quality, and dry matter content. Journal of Production Agriculture 6(1): 94-99. {a} Marshfield Agric. Res. Stn., 8396 Yellowstone Dr., Marshfield, WI 54449

Wilkinson, R. E. (1993). Naphthalic anhydride partial reversal of carotenogenesis inhibition by norflurazon. Pesticide Biochemistry and Physiology 47(2): 81-86. Dep. Agron., Georgia Station, Griffin, GA 30223-1797, USA

Wilson, L. M. and J. P. McCaffrey (1993). Bionomics of Phrydiuchus tau (Coleoptera: Curculionidae) associated with Mediterranean sage in Idaho. Environmental Entomology 22(3): 704-708. Div. Entomol., Dep. Plant, Soil Entomological Sci., Univ. Idaho, Moscow, ID 83843, USA

Wilson, R. G. (1993). Effect of preplant tillage, post-plant cultivation and herbicides on weed density in corn (Zea mays). Weed Technology 7(3): 728-734. Dep. Agron., Univ. Nebraska, Scottsbluff, NE 69361, USA

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Zandomeni, K. and P. Schopfer (1993). Reorientation of microtubules at the outer epidermal wall of maize coleoptiles by phytochrome, blue-light photoreceptor, and auxin. Protoplasma 173(3-4): 103-112. {a} Biologisches Institut II der Universitaet Freiburg, Schanzelstrasse 1, D-W-7800 Freiburg, Germany

Zapponi, M. C., P. Iadarola, et al. (1993). Limited proteolysis of chloroplast glyceraldehyde-3-phosphate dehydrogenase (NADP) from Spinacia oleracea. Biological Chemistry Hoppe Seyler 374(6): 395-402. {a} Dipartimento di Biochimica, Universita di Pavia, Via Taramelli 3/b, I-27100 Pavia, Italy

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Zhan, X., K. A. Richardson, et al. (1993). The activity of the coat protein promoter of chloris striate mosaic virus is enhanced by its own and C1-C2 gene products. Virology 193(1): 498-502. {a} Molecular Genetics Group, Plant Improvement Division, Horticulture Food Research Institute NZ Ltd., Private Bag 92169, Auckland, New Zealand

Zhang, F., A. F. MacKenzie, et al. (1993). Corn yield and shifts among corn quality constituents following application of different nitrogen fertilizer sources at several times during corn development. Journal of Plant Nutrition 16(7): 1317-1337. {a} Dep. Plant Sci., Macdonald Campus McGill Univ., 21,111 Lakeshore Rd., Ste-Anne-de-Bellevue, PQ H9X 3V9, Canada

Zhang, G., D. J. Gifford, et al. (1993). RNA and protein synthesis in sperm cells isolated from Zea mays L. pollen. Sexual Plant Reproduction 6(4): 239-243. {a} Dep. Bot., Univ. Alberta, Edmonton, AB T6G 2E9, Canada

Zhang, J. and S. A. Barber (1993). Corn root distribution between ammonium fertilized and unfertilized soil. Communications in Soil Science and Plant Analysis 24(5-6): 411-419. Agron. Dep., 1150 Lilly Hall Life Sci., Purdue Univ., West Lafayette, IN 47907

Zhang, Q., M. A. S. Maroof, et al. (1993). Comparative diversity analysis of RFLPs and isozymes within and among populations of Hordeum vulgare ssp. spontaneum. Genetics 134(3): 909-916. {a} Biotechnol. Cent., Huazhong Agric. Univ., Wuhan 430070, China

Zhang, Y. H., L. E. Craker, et al. (1993). A method to separate germinated from ungerminated pollen grains. Environmental and Experimental Botany 33(3): 415-421. {a} Dep. Plant Soil Sciences, Univ. Mass., Amherst, MA 01003, USA

Zhong, G. Y. and C. O. Qualset (1993). Allelic diversity of high-molecular-weight glutenin protein subunits in natural populations of Dasypyrum villosum (L.) Candargy. Theoretical and Applied Genetics 86(7): 851-858. {a} Dep. Agron. and Range Sci., Univ. Calif., Davis, CA 95616, USA

Zhong, W., C. Schobert, et al. (1993). Transport of magnesium ions in the phloem of Ricinus communis L. seedlings. Planta Heidelberg 190(1): 114-119. Pflanzenphysiologie, Universitaet Bayreuth, Universitaetsstrasse 30, W-8580 Bayreuth, Germany

Zhou, H. S. (1993). Callus initiation, maintenance and plant regeneration from embryos of sweet maize. Acta Agronomica Sinica 19(1): 55-62. Inst. Crop Breeding and Cultivation, CAAS, Beijing 100081

Zhu, D. and J. Lu (1993). The water-use efficiency of winter wheat and maize on a salt-affected soil in the Huang Huai Hai river plain of China. Agricultural Water Management 23(1): 67-82. {a} Dep. Water Resources, Nieuwe Kanaal 11, 6709 PA Wageningen, Netherlands Antilles

Zhu, Z. J., X. Sun, et al. (1993). Effects of localized supply of phosphate on root growth and phosphate uptake rate in maize. Acta Phytophysiologica Sinica 19(3): 221-228. {a} Dep. Soil Sci. Agric. chem., Zhejiang Agric. Univ., Hangzhou 310029, China

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Zocchi, G. and G. Rabotti (1993). Calcium transport in membrane vesicles isolated from maize coleoptiles: Effect of indoleacetic acid and fusicoccin. Plant Physiology Rockville 101(1): 135-139. {a} Dip. Fisiol. Piante Coltivate e Chim. Agraria, Univ. Milano, Via Celoria 2, I-20133 Milano, Italy

Zottini, M. and D. Zannoni (1993). The use of fura-2 fluorescence to monitor the movement of free calcium ions into the matrix of plant mitochondria (Pisum sativum and Helianthus tuberosus). Plant Physiology Rockville 102(2): 573-578. {a} Dep. Biol., Biochem. Lab., Univ. Bologna, Via Irnerio 42, 41026 Bologna, Italy

Zwolinski, J. B., D. G. M. Donald, et al. (1993). Impact of site preparation on wind resistance of young Pinus radiata. South African Forestry Journal(164): 27-34. {a} P.O. Box 4795, 6539 George-East