American Phytopathological Society Board & Staff. VIEW ABSTRACT | VIEW ARTICLE
Letter to the Editor
An Appraisal of Stem and Leaf Rust Resistance in North American Hard Red Spring Wheats and the Probability of Multiple Mutations to Virulence in Populations of Cereal Rust Fungi. J. A. Kolmer, P. L. Dyck, and A. P. Roelfs. Pages 237-239. VIEW ABSTRACT | VIEW ARTICLE
Letter to the Editor
Probability of Mutation to Multiple Virulence and Durability of Resistance Gene Pyramids: Further Comments. C. C. Mundt. Pages 240-242. VIEW ABSTRACT | VIEW ARTICLE
Physiology and Biochemistry
Effect of Phytotoxins Produced by Botryosphaeria obtusa, the Cause of Black Rot of Apple Fruit and Frogeye Leaf Spot. P. Venkatasubbaiah, T. B. Sutton, and W. S. Chilton. Pages 243-247. VIEW ABSTRACT | VIEW ARTICLE
Resistance
Incidence of Carboxin Resistance in Ustilago nuda. G. Newcombe, P. L. Thomas. Pages 247-250. VIEW ABSTRACT | VIEW ARTICLE
Techniques
Development of a Demographic Growth Model for Uncinula necator by Using a Microcomputer Spreadsheet Program. Daniel O. Chellemi, James J. Marois. Pages 250-254. VIEW ABSTRACT | VIEW ARTICLE
Genetics
Vegetative Compatibility Groups and Subgroups in Fusarium oxysporum f. sp. radicis-lycopersici. Talma Katan, D. Zamir, Matti Sarfatti, and J. Katan. Pages 255-262. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Distribution Analyses of Naturally Occurring Epiphytic Populations of Xanthomonas campestris pv. phaseoli on Dry Beans. C. Ishimaru, K. M. Eskridge, and A. K. Vidaver. Pages 262-268. VIEW ABSTRACT | VIEW ARTICLE
Resistance
Maternal Influence on the Resistance of Sweet Corn Lines to Kernel Infection by Fusarium moniliforme. J. M. Headrick, J. K. Pataky. Pages 268-274. VIEW ABSTRACT | VIEW ARTICLE
Techniques
Properties and Potential Applications of Syngeneic Monoclonal Anti-Idiotypic Antibodies: Use as a Reference Standard in Enzyme-Linked Immunosorbent Assay. R. L. Mernaugh, J. H. Hill, D. P. Durand, R. A. Van Deusen, and K. F. Harris. Pages 274-282. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Biological Control of Eutypa lata on Grapevine by an Antagonistic Strain of Bacillus subtilis. J. H. S. Ferreira, F. N. Matthee, and A. C. Thomas. Pages 283-287. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Patterns of Rhizoctonia Foliar Blight on Soybean and Effect of Aggregation on Disease Development. X. B. Yang, J. P. Snow, and G. T. Berggren. Pages 287-293. VIEW ABSTRACT | VIEW ARTICLE
Physiology and Biochemistry
Effects of Verticillium dahliae on Gas Exchange of Potato. R. L. Bowden, D. I. Rouse. Pages 293-301. VIEW ABSTRACT | VIEW ARTICLE
Ecology and Epidemiology
Chronology of Gas Exchange Effects and Growth Effects of Infection by Verticillium dahliae in Potato. R. L. Bowden, D. I. Rouse. Pages 301-310. VIEW ABSTRACT | VIEW ARTICLE
Genetics
Phenotypic Diversity in Two Populations of Puccinia recondita f. sp. tritici in Canada During 1931-1987. J. A. Kolmer. Pages 311-315. VIEW ABSTRACT | VIEW ARTICLE
Genetics
Evolution of Distinct Populations of Puccinia recondita f. sp. tritici in Canada. J. A. Kolmer. Pages 316-322. VIEW ABSTRACT | VIEW ARTICLE
Cytology and Histology
Appressorium Formation in Response to Topographical Signals by 27 Rust Species. E. A. Allen, B. E. Hazen, H. C. Hoch, Y. Kwon, G. M. E. Leinhos, R. C. Staples, M. A. Stumpf, and B. T. Terhune. Pages 323-331. VIEW ABSTRACT | VIEW ARTICLE
Genetics
Repetitive Genomic Sequences for Determining Relatedness Among Strains of Fusarium oxysporum. H. C. Kistler, E. A. Momol, and U. Benny. Pages 331-336. VIEW ABSTRACT | VIEW ARTICLE
Disease Detection and Losses
Effect of Ratoon Stunting Disease on Yield of Sugarcane Grown in Multiple Three-Year Plantings. Michael P. Grisham. Pages 337-340. VIEW ABSTRACT | VIEW ARTICLE
Symposium: Assessing the Socioeconomic, Ecological, and Scientific Effects of Agricultural Biotechnology
Understanding the Impacts of Biotechnology. J. F. Fulkerson. Page 343. VIEW ABSTRACT | VIEW ARTICLE
Symposium: Assessing the Socioeconomic, Ecological, and Scientific Effects of Agricultural Biotechnology
Assessing the Benefits Associated with Planned Introductions of Genetically Engineered Organisms. Forrest W. Nutter, Jr. Pages 344-348. VIEW ABSTRACT | VIEW ARTICLE
Symposium: Assessing the Socioeconomic, Ecological, and Scientific Effects of Agricultural Biotechnology
The Release and Tracking of Genetically Engineered Bacteria in the Environment. D. A. Kluepfel, E. L. Kline, H. D. Skipper, T. A. Hughes, D. T. Gooden, D. J. Drahos, G. F. Barry, B. C. Hemming, and E. J. Brandt. Pages 348-352. VIEW ABSTRACT | VIEW ARTICLE
Symposium: Assessing the Socioeconomic, Ecological, and Scientific Effects of Agricultural Biotechnology
Assessing the Potential Impact of Planned Releases of Bioengineered Organisms Using Modeling and Nonmodeling Approaches P. S. Teng. Pages 353-356. VIEW ABSTRACT | VIEW ARTICLE
Symposium: Assessing the Socioeconomic, Ecological, and Scientific Effects of Agricultural Biotechnology
Socioeconomic Aspects of Agricultural Biotechnology. Marshall A. Martin. Pages 356-360. VIEW ABSTRACT | VIEW ARTICLE
Symposium: Assessing the Socioeconomic, Ecological, and Scientific Effects of Agricultural Biotechnology
The National Biological Impact Assessment Program. D. R. MacKenzie. Page 361. VIEW ABSTRACT | VIEW ARTICLE
