Download or read book He Effects of Fungicide and Genetics on Fungal Diseases on Wheat in Nebraska with Emphasis on Stem Rust written by Javed Sidiqi and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: To determine if Sr7b was present in Gage, Gage was crossed by ISr7b-Ra. F2 and F2:3 families were evaluated for stem rust resistance. The segregation of F2 plants and F 2:3 families for stem rust resistance fitted well with 15:1 ratio for two separate resistance genes in the two replications. These results suggest that Sr7b segregates independently from an unknown resistance gene in Gage.
Download or read book Rust Diseases of Wheat written by Alan P. Roelfs and published by CIMMYT. This book was released on 1992 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Combating stem and leaf rust of wheat Historical perspective impacts and lessons learned written by H.J. Dubin, John P. Brennan and published by Intl Food Policy Res Inst. This book was released on with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stem Rust in Nebraska written by George Leo Peltier and published by . This book was released on 1927 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Wheat Rusts Breeding for Resistance written by Douglas R. Knott and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: The idea for this book was conceived by the late Dr. Irvine A. Watson of the University of Sydney, and he developed the first outline. I was then invited by Dr. Watson to share in its writing. Unfortunately, shortly there after, recurring heart problems forced him to curtail his activities and with draw from the project. He died before the book could be completed. Dr. Watson's intention was to produce a very practical book that would provide wheat breeders with all of the information necessary to breed success fully for resistance to the three wheat rusts: leaf rust, stem rust, and yellow rust. It was intended to be very specific in describing procedures to be used and at the same time provide all of the necessary theoretical background. I hope that I have been successful in meeting these objectives. The book assumes that the reader has some knowledge of plant pathology, genetics, and plant breeding. Extensive use has been made of the literature, but it was not possible to cite all of the papers on a given topic. In making a choice, an attempt was made to choose key papers or more recent papers that provided references to the earlier literature. Acknowledgements This book was written partly at the University of Saskatchewan and partly at the University of California, Davis, while I was on a sabbatical leave.
Download or read book Fungal Wheat Diseases Etiology Breeding and Integrated Management written by Maria Rosa Simon and published by Frontiers Media SA. This book was released on 2021-05-31 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stem Rust of Wheat written by Paul David Peterson and published by American Phytopathological Society. This book was released on 2001 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wheat rust diseases have been among the most devastating of all plant diseases since biblical times. Now that nearly a half century has passed without a significant outbreak in the world's major wheat- producing regions, forward writer Nobel laureate Norman Borlaug cautions against complacency. Four contributed chapters examine how the science of plant pathology has responded to such challenges as stem rust of wheat epidemics in the North American Great Plains in the first half of the 20th century, and common barberry as an insidious spreader of black stem rust. Includes photos of plant pathologists and their research in the field (literally). c. Book News Inc.
Download or read book The Rust Diseases of Wheat written by William Quenn Loegering and published by . This book was released on 1967 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epidemiology and Management of Fusarium Head Blight and Foliar Fungal Diseases of Wheat written by Carlos Bolanos-Carriel and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fusarium head blight (FHB) caused by Fusarium graminearum, the FHB-associated mycotoxin deoxynivalenol (DON), and foliar fungal diseases are significant threats to wheat production. This research 1) evaluated the effects of fungicide chemical class, application timing, and cultivar resistance on FHB and DON under field conditions; 2) evaluated the effects of field-applied fungicide chemical class, grain moisture, and time on DON under grain storage conditions; 3) evaluated the effects of field-applied fungicide chemical class and time on trichothecene-related gene (Tri5) expression under grain storage conditions; 4) determined the optimum F. graminearum spore concentration and spike bagging period following inoculation for accurately discriminating between FHB resistant and susceptible wheat cultivars under greenhouse conditions; and 5) determined the optimum timing of fungicide applications for control of foliar fungal diseases of wheat under field conditions. A triazole fungicide controlled FHB and DON more effectively than a strobilurin fungicide. A triazole applied 6 days after anthesis was as effective as an anthesis (standard timing) application, indicating a wider window of application for growers' needed flexibility. In storage, DON decreased over time in grain of a moderately resistant cultivar treated with a triazole and increased in grain of a susceptible cultivar treated with a strobilurin. During storage, DON biosynthesis Tri5 gene expression increased over time during storage of high grain moisture grain, a significant reduction in the relative expression of the Tri5 gene and a downregulation of the gene occurred in the triazole treatment whereas expression of the gene increased in the strobilurin treatment. In the greenhouse, lower concentrations of F. graminearum inoculum (6.25 x 10 3 and 1.25 x 104 spores/mL) were more efficient in discriminating between a moderately resistant and a susceptible wheat cultivar compared to the standard concentration (1 x 105 spores/mL). The optimum spike bagging period following inoculation for discrimination between a moderately resistant and a susceptible cultivar was 48 hours or 72 hours (the standard). Foliar fungicide applications in field plots at the flag leaf and boot growth stages of wheat were more effective in protecting yield than later applications. Results from this research will enhance knowledge in the epidemiology and management of FHB, DON, and foliar fungal diseases of wheat.
Download or read book Stem Rust Infection and Development in Artificially Inoculated Fields of Wheat at Hays Kansas and Its Effect on Yield 1960 to 1965 written by Roland F. Line and published by . This book was released on 1968 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most wheat varieties growing in the vicinity of Hays, Kansas, are susceptible to races of Puccinia graminis f. sp. tritici that are common in central United States. However, they are seldom severely damaged by stem rust. It is commonly thought that weather in that area is not favorable for establishment and development of stem rust. In 1960 to 1965 the epidemiology of stem rust was studied at Hays in fields of Cheyenne wheat inoculated with urediospores of race 56 when the plants were in tillering to boot stages of growth. Infection occurred in all 6 years. Rust increase was related to the frequency of days when conditions were favorable for infection. Plots with initial intensities of 2.5 to 20 pustules per 100 culms were compared. In the 6 consecutive years (1960 to 1965) severities at soft dough stage were about 30, 25, 7, 2, 2, and 20%; yields for rusted plots were 20, 19, 25, 34, 22, and 18 bu/acre; and yields for adjacent control areas were 46, 29, 45, 35, 29, and 62 bu/acre, respectively. In 1965, a natural epidemic of stem rust caused severe damage to wheat in Kansas and Nebraska. In 1965, the crop ripened late in the season. In 5 of the 6 years, weather was favorable for rust epidemics. Late natural infection appeared to be the primary factor limiting severity of the rust epidemics. (Author).
Download or read book Wheat Rust Diseases written by Sambasivam Periyannan and published by Humana Press. This book was released on 2017-08-31 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a collection of tools currently used for the characterization of rust, the host plant wheat, and their interactions. This book is divided into five parts: Parts I and II discuss advanced techniques for characterizing rust pathogens in rust surveillance, genotyping, and molecular pathogenicity; Part III describes protocols for genetic analysis of rust resistance; Part IV covers methods on rust resistance gene cloning; and Part V talks about the isolation and screening of bacterial endophytes as biocontrol agents for rust disease management. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and authoritative, Wheat Rust Disease: Methods and Protocols is a valuable resource for both established and novel wheat rust researchers and also the plant science and microbial research community.
Download or read book Wheat Rusts written by R. A. McIntosh and published by . This book was released on 1995 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although stem rust is mostly controlled by means of resistance cultivars, leaf and stripe rust continue as major problems in many wheat-growing areas of the world. Wheat Rusts: An Atlas of Resistance Genes provides a basis to identify genes for resistance to stem, leaf and stripe rusts of wheat. Typical phenotypes associated with most known genes for resistance to these three diseases are illustrated in full colour. This book will assist plant breeders and pathologists to identify candidate resistance genes, thereby saving substantial time and resources. Prepared by well-known specialists from a leading international laboratory, Wheat Rusts: An Atlas of Resistance Genes comprises an introductory chapter, details of individual resistance genes, appendices and an index. Details for each gene include chromosome location, aspects of genetics and pathogen variation, the effect of environment of expression, origin, availability in genetic and breeding stocks and use in agriculture.
Download or read book The Stem Rust Epidemic of 1935 in Nebraska written by George L. Peltier and published by . This book was released on 1936 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetics of Stem Rust Resistance in the Spring Wheat Cultivar Thather and the Effect of Lr34 on Stem Rust Resistance written by Carmen Denise Gavin Vanegas and published by . This book was released on 2006 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Validation and its Role in Crop Improvement written by Ahmed Sallam and published by Frontiers Media SA. This book was released on 2022-11-08 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cereal Rusts Origins specificity structure and physiology written by William Rodgers Bushnell and published by . This book was released on 1984 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Origins, specificity, structure, and physiology; Evolution at the center of origin; Taxonomy of the cereal rust fungi; Specificity; The formae speciales; Race specificity and methods of study; Genetics of the pathogen: host association; Histology and molecular biology of host: parasite; Virulence frequency dynamics of cereal rust fungi; The rust fungus; Controlled infection by Puccinia graminis f.sp. tritici under artificial conditions; Developmental ultrastructure of hyphae and spores; Development and physical of teliospores; Obligate parasitism and axenic culture; The host parsite interface; The rusted host; Effects of rust on plant development in relation to the translocation of inorganic and organic solutes.
Download or read book Rust Diseases of Wheat written by John E. Watkins and published by . This book was released on 1995 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This NebGuide provides information on the three rust diseases of wheat. Information is present that will assist producers with rust control diseases.
