Download or read book Influence of Soils Nutrition and Water Relations Upon Charcoal Rot Disease Processes in Kansas written by David Ricardo Jimenez Cruz and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Charcoal rot, caused by Macrophomina phaseolina, is the most important soybean disease in Kansas. Several strategies have been recommended to control this disease including crop rotation, lower plant densities, biological control, plant resistance and tolerance, and fungicide application. However, those techniques have not been completely effective and the information concerning soil texture, irrigation and micronutrient fertility (particularly manganese) upon charcoal rot disease severity and the pathogen population is limited. The objective of this study was to determine key factors that affect the biology of M. phaseolina and charcoal rot processes under laboratory, greenhouse and field conditions. M. phaseolina microsclerotia were produced from PDA pure isolate and infested Japanese millet in the laboratory and characterized by different techniques such as serial dilutions in semi selective media with the aim to produce quality inoculum to reliably infect soybean seedling roots under greenhouse conditions; production of inoculum by infesting Japanese millet was the most efficient method. Root colonization and root infection of soybean seedlings was assessed through the use of M. phaseolina inoculum under controlled conditions in the greenhouse. Root infection by M. phaseolina and microsclerotia longevity in soil is determined by environmental factors such as soil moisture content, soil texture and source of inoculum. The objective of the greenhouse study was to determine the impact of these variables on seedling root infection at the V1 and V2 development stages. Artificial soils with different textures were infested; M. phaseolina microsclerotia and soybean seedlings were exposed to different soil moisture contents including pot saturation, pot (field) capacity, and permanent wilting point. Soil populations and levels of root colonization for the stages were assessed by estimating CFUs and root length. Results indicate that soil texture has a significant impact upon root morphology and root length. Root populations of M. phaseolina were significantly higher in sandy soil textures and lower in the fine-textured soils, suggesting an impact of soil water holding capacity in the root infection process. The effect of water stress on seedling root colonization by M. phaseolina indicates that early infection may be more important than previously thought. A field study was also conducted to determine the effect of the aforementioned variables in a 2-year field experiment conducted at two Kansas locations. Pathogen colonization was iii assessed by measuring colony-forming units (CFUs) from ground root tissue at R2-R4 (post-flowering/early pod development) and R8 (maturity) stages. Soil populations (pre-planting and post-harvest) of M. phaseolina, yield parameters, and plant characteristics were obtained. Results indicated that there are complex relationships between soil physiochemical properties (pH, NPK content, exchangeable cations, and organic matter) and soil texture (sand, soil, and clay composition), which may mitigate disease severity and pathogen levels in host tissue. Results also indicated that in natural M. phaseolina-infested soils, cropping history and soil texture play an important role in charcoal rot processes and influence the levels of pathogen soil populations, root colonization at maturity and, more importantly, soybean yield.
Download or read book Macrophomina Phaseolina written by Pankaj Kumar and published by Elsevier. This book was released on 2023-06-08 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Macrophomina Phaseolina: Ecobiology, Pathology and Management provides insights into the sustainable prevention and treatment of this wide-spread challenge to plant health. With a focus on agricultural as well as non-food plant challenges, the book highlights diverse approaches and provides central insights. The pathogen?of M. phaseolina affects the fibrovascular system of roots and basal internodes of its host, impeding the transport of water and nutrients to the upper parts of the plant, thus resulting in progressive wilting, premature drying and dying, loss of vigor, and reduced yield. Finally, the book explores the interaction of M. phaseolina with soil, microbes and ecological conditions to control disease-causing strategies. Recognizing the necessity that strategies applied to manage the disease should have no or minimum effect on ecological resources, the book focuses on alternative sustainable management technologies such as mix-cropping, the use of antagonistic bacteria and fungi and microbial biosurfactants, plant growth promoting antagonistic rhizobacteria and how cultural practices may also play an important role. Identifies plant diseases caused by Macrophomina phaseolina Explores M. phaseolina genetic diversity Highlights pesticide tolerance and alternative control options
Download or read book Sorghum written by Ignacio A. Ciampitti and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sorghum is among the top five cereals and one of the key crops in global food security efforts. Sorghum is a resilient crop under high-stress environments, ensuring productivity and access to food when other crops fail. Scientists see the potential of sorghum as a main staple food in a future challenged by climate change. The contributors provide a comprehensive review of sorghum knowledge. The discussion covers genetic improvements, development of new hybrids, biotechnology, and physiological modifications. Production topics include water and nutrient management, rotations, and pest control. Final end uses, sorghum as a bioenergy crop, markets, and the future of sorghum are presented. IN PRESS! This book is being published according to the “Just Published” model, with more chapters to be published online as they are completed.
Download or read book Recent Innovations in Bio sustainability and Environmental Research Volume I written by Dr. V.I.PAUL and published by Archers & Elevators Publishing House. This book was released on with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agricultural Research in Kansas written by Kansas Agricultural Experiment Station and published by . This book was released on 1992 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wheat Abstracts written by and published by . This book was released on 1963 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1987-10 with total page 1238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Miscellaneous Publication written by and published by . This book was released on 1941 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1976 with total page 1732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bulletins of the Agricultural Experiment Stations in the United States from Their Establishment to the End of written by and published by . This book was released on 1937 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bulletins of the Agricultural Experiment Stations written by United States. Department of Agriculture. Library and published by . This book was released on 1927 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Bulletins of the Agricultural Experiment Stations for the Calendar Years 1939 and 1940 written by Catherine Emma Pennington and published by . This book was released on 1941 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliographical Bulletin written by National Agricultural Library (U.S.) and published by . This book was released on 1928 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Plant Nutrition written by Allen V. Barker and published by CRC Press. This book was released on 2016-04-19 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: The burgeoning demand on the world food supply, coupled with concern over the use of chemical fertilizers, has led to an accelerated interest in the practice of precision agriculture. This practice involves the careful control and monitoring of plant nutrition to maximize the rate of growth and yield of crops, as well as their nutritional value.
Download or read book Abiotic and Biotic Stresses in Soybean Production written by Mohammad Miransari and published by Academic Press. This book was released on 2015-12-31 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abiotic and Biotic Stresses in Soybean Production: Soybean Production Volume One presents the important results of research in both field and greenhouse conditions that guide readers to effectively manage the chemical, physical, and biological factors that can put soybean production at risk. Including the latest in genetics, signaling, and biotechnology, the book identifies these types of stresses, their causes, and means of avoiding, then addresses existing stresses to provide a comprehensive overview of key production yield factors. By presenting important insights into the historical and emerging uses for soybean, the book educates readers on the factors for consideration as new uses are developed. It is an ideal complement to volume two, Environmental Stress Conditions in Soybean Production, that work together to provide valuable insights into crop protection. Presents insights for the successful production of soybean based on chemical, physical and biologic challenges Includes the latest specifics on soybean properties, growth, and production, including responses to different stresses and their alleviation methods Offers recent advancements related to the process of N fixation and rhizobium, including signaling pathways and their practical use Explores the production of rhizobium inoculums at large-scale levels
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1987 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Family Expenditures for Housing and Household Operation written by and published by . This book was released on 1941 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:
