Download or read book The Epidemiology and Management of the Soybean Seed Discoloration Syndrome Associated with Bean Pod Mottle Virus written by Jeffrey Lee Daniels and published by . This book was released on 2004 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean seed discoloration, associated with bean pod mottle virus (BPMV), has become a serious problem in production areas of the USA since the late 1990's. A series of field experiments was carried out to elucidate the epidemiology of seed infection by BPMV and develop efficacious and economic control practices. Results of the study showed that bean leaf beetles, acting as a secondary inoculum source, were more significant towards BPMV infection and seed discoloration than planting infected seed, a primary source of inoculum, although seed-borne inoculum was related to incidence of seed discoloration when bean leaf beetle populations were not controlled. BPMV was detected throughout the growing season and its incidence could be related to bean leaf beetle feeding and/or populations. The pathogen also was consistently recovered at a higher rate from discolored seeds than in apparently normal seeds after harvest. Experiments in which insect population were selectively controlled by insecticide treatments showed that transmission of the BPMV by the overwintered population or first generation of the bean leaf beetle were of more importance to soybean seed discoloration than that from the second generation. Management strategies using imidacloprid seed treatment to control the overwintered generation and insecticide sprays timed to be applied at onset of the first generation of the bean leaf beetle were shown to be potentially effective, economic management strategies for this disease until longer term solutions such as resistant cultivars are developed. In addition to reduction of seed discoloration, insecticide treatments were shown to increase yield and seed size of harvested soybeans. The study also showed that seed germination and vigor were not affected by BPMV infection.
Download or read book Compendium of Soybean Diseases written by James Burton Sinclair and published by . This book was released on 1989 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Production; Soybean diseases; Infectious diseases; Bacterial diseases; Bacterial blight; Bacterial pustule; Bacterial tan spot; Wildfire; Bacterial wilts; Crown gall; Other bacteria; Mycoplasmalike diseases; Machismo; Bud proliferation; Witches'-broom and phyllody; Beneficial bacteria; Fungal diseases; Fungal diseases of foliage, upper stems, pods, and seeds; Alternaria leaf spot and pod necrosis; Anthracnose; Brown spot; Cercospora blight and leaf spot; Choanephora leaf blight; Downy mildew; Frogeye leaf spot; Phyllosticta leaf spot; Powdery mildew; Red leaf blotch; Rhizoctonia aerial blight; Rust; Scab; Target spot; Fungal diseases of roots and lower stems; Brown stem rot; Charcoal rot; Fusarium blight or wilt, root rot, and pod and collar rot; Phytophthora rot; Pod and stem blight and Phomopsis seed decay; Stem canker; Pythium rot; Red crown rot; Rhizoctonia diseases; Sclerotinia stem rot; Sclerotium blight; Thielaviopsis root rot; Other fungi associated with root rots; Beneficial fungi; Virus diseases; Bean pod mottle virus; Cowpea chlorotic mottle virus; Peanut mottle virus; Soybean dwarf virus; Soybean mosaic virus; Tobacco ringspot virus; Tobacco streak virus; Bean yellow mosaic virus; Black gram mottle virus; Cowpea mild mottle virus; Cowpea severe mosaic virus; Indonesian soybean dwarf virus; Mung bean yellow mosaic virus; Peanut stripe virus; Soybean chlorotic mottle virus; Soybean Crinkle leaf virus; Soybean yellow vein virus; Tobacco mosaic virus; Other viruses; Nematode diseases; Soybean cyst nematode; Lance nematodes; Lesion nematodes; Reniform nematode; Root-knot nematodes; Sting nematodes; Other nematodes; Seed pathology; Detection of seedborne pathogens; Seedborne bacteria and bacterial diseases of seeds; Bacillus seed decay; Other seedborne bacteria; Seedborne fungi and fungal diseases of seeds; Alternaria pod and seed decay; Purple seed stain; Cercospora sojina; Chaetomium cupreum; Colletotrichum truncatum; Diaporthe-Phomopsis complex; Fusarium spp.; Macrophomina phaseolina; Yeast spot (Nematospora spot); Peronospora manshurica; Phomopsis seed decay; Other seedborne fungi; Postharvest pathology; Seedborne viruses; Other pathogens associated with seeds; Diseases of unknown or uncertain cause; Foliage blight; Sudden death syndrome; Yellow leaf spot; Noninfectious or stress diseases; Crusting and compaction; Frost; Hail; Heat canker; Lightning; Sunburn; Water stress; Mineral deficiencies and toxicities; Herbicide damage; Insecticide damage; Air pollutants; Soybean disease management strategies; Exclusion; Eradication; Protection; Disease resistance; Integrated pest management.
Download or read book Studies on the Epidemiology and Molecular Biology of Two Soybean Viruses written by Jose Ribmar N. dos Anjos and published by . This book was released on 1991 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soybean Diseases written by Denis C. McGee and published by American Phytopathological Society. This book was released on 1992 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diseases that are seedborne and seed transmitted; Fungi; Ascochyta leaf spot; Anthracnose; Curvularia cotyledon spot; Downy mildew; Frogeye leaf spot; Phomopsis seed decay; Purple seed stain; Sclerotinia stem rot; Bacteria; Bacterial blight; Bacterial pustule; Bacterial tan spot; Bacterial wilt; Corynebacterium wilt; Wildfire; Viruses; Alfalfa mosaic; Bean pod mottle; Brazilian bud blight; Bud blight; Cowpea mild mottle; Cucumber mosaic; Peanut stunt; Peanut stripe; Soybean mild mosaic; Soybean mosaic; Soybean stunt; Tomato ringspot; Diseases that are seedborne but not seed transmitted; Fungi; Altenaria leaf spot; Botrytis stem rot; Brown spot; Brown stem rot; Charcoal rot; Drechslera blight; Fusarium pod and collar rot; Fusarium root rot; Fusarium wilt; Myrothecium leaf spot; Phyllosticta leaf spot; Phytophthora root rot; Pythium root rot; Rhizoctonia aerial blight; Rhizoctonia root rot; Stem canker; Southern blight; Storage rot; Target spot, Thielaviopsis root rot; Verticillium stem rot; Yeast spot; Bacteria; Bacillus seed decay; Chocolate spot; Viruses; Southern bean mosaic; Diseases that are not seedborne or seed transmitted; Fungi; Choanephora leaf blight; Leptosphaerulina leaf spot; Mycoleptodiscus root rot; Neocosmospora stem rot; Powdery mildew; Red crown rot; Red leaf blotch; Scab; Soybean rust; Stemphylium leaf blight; Sudden death syndrome; Bacteria; Bacterial crinkle leaf spot; Pseudomonas andropogonis leaf spot; Mycoplasmas; Bud proliferation; Machismo; Witches' broom; Viruses; Abutilion mosaic; African soybean dwarf; Azuki mosaic; bean chlorotic ringspot; Bean common mosaic; Bean yellow mosaic; Black gram mottle; Blackeye cowpea mosaic; Cowpea aphid-borne mosaic; Cowpea chlorotic mottle; Cowpea mosaic; Cowpea severe mosaic; Crinkle leaf; Indonesian soybean dwarf; Mung bean yellow mosaic; Peanut mottle; Rhyncosia mosaic; Rosette; Soybean chlorotic mottle; Soybean dwraf; Soybean severe stunt; Soybean yellow vein; Tobacco mosaic; Tomato spotted wilt.
Download or read book Bean Pod Mottle Virus of Soybeans written by Mark Townsend Windham and published by . This book was released on 1983 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Epidemiological Studies of Soybean Vein Necrosis Virus and Potential Resistance Mechanisms to Its Vector Neohydatothrips Variabilis Beach written by Jing Zhou and published by . This book was released on 2018 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean (Glycine max (L.) Merrill) is one the most important crops in global agriculture with annual production of over 260 million metric tons. As the dependence of a growing global population to soybean has increased, so does the importance of soybean diseases and pests. Over 200 pathogens attack soybean; among them, viruses pose a major threat to the soybean industries accounting for approximately 10% of the annual yield reduction caused by diseases in the past two decades. Soybean vein necrosis virus (SVNV) is a relatively newly discovered virus causing the homonymous disease. The widespread occurrence of the disease in major soybean producing regions in North America and its negative impact on seed quality led to the work presented here; research that aims to better understand virus epidemiology so as to develop effective virus control and disease management tools. In order to further understand the potential roles of weeds in SVNV cycle, surveys were conducted to determine the presence of SVNV among 32 weed species collected from soybean fields in Arkansas. Kudzu (Pueraria montana), a common weed present in millions of acres in Southeastern United States, can sustain SVNV replication in a systemic manner without developing virus-like symptoms. SVNV - a localized virus in soybean, could move systemically with the assistance of bean pod mottle virus, one of the most economically important soybean viruses. The ineffectiveness of pesticides in thrips management highlights the need to identify potential resistance mechanisms to the primary and highly efficient vector of SVNV - Neohydatothrips variabilis (Beach). The comparison of transmission efficiency of thrips fed with polypeptides containing RGD motif and N-linked glycosylation sites of SVNV glycoproteins indicated that blocking putative cellular receptors prior to virus acquisition could significantly reduce the virus transmission efficiency. Due to the lack of resistance to SVNV, efforts were made to identify genotypes with resistance to the vector, which could modify vector behavior and reduce the incidence of transmission and disease. Screening of soybean accessions with differential leaf pubescence levels revealed that feeding damage caused by thrips differs among accessions and is weakly correlated to their pubescence levels.
Download or read book Interactions of Tobacco Ringspot and Bean Pode Motle Viruses with Soybean Mosaic Virus in Infected Soybean Plants with Observations on the Particle Complexity of Tobacco Ringspot Virus written by A.M.R. Almeida and published by . This book was released on 1986 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symptomatic synergism in mixed infections of soybean with soybean mosaic virus (SMV) and tobacco ringspot virus (TRSV), or with SMV and bean pod mottle virus (BPMV), was associated with effects on virus production. TRSV production was enhanced in mixed infections of SMV with TRSV, as compared to virus production in plants infected with TRSV alone. BPMV production was enhanced in mixed infections of SMV with BPMV, as compared to virus production in plants infected with BPMV alone. SMV production in inoculated primary leaves was inhibited by inoculation with either TRSV or BPMV. Top necrosis and classical bud blight symptoms were characteristic of mixed infections with SMV and TRSV and not of infections with TRSV alone. Development of these symptoms depended onthe simultaneous replication of SMV and TRSV. Similarly, a top necrosis characteristic of mixed infections with SMV and BPMV also depended on the simultaneous replication of these two viruses. None of the synergistic effects observed was associated with enhnanced transmission of the viruses through seed. The hitherto unreported existence of two sizes of particle in TRSV preparations was established from the centrifugal properties (sedimentation and density) and electron microscopy of the several particle categories previously recognized.
Download or read book Insect and Experimental Transmission Studies in Relation to Bean Pod Mottle Virus Disease of Soybeans written by Henry Nolle Pitre and published by . This book was released on 1970 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seed borne plant virus diseases written by K. Subramanya Sastry and published by Springer Science & Business Media. This book was released on 2013-01-05 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seeds provide an efficient means in disseminating plant virus and viroid diseases. The success of modern agriculture depends on pathogen free seed with high yielding character and in turn disease management. There is a serious scientific concern about the transmission of plant viruses sexually through seed and asexually through plant propagules. The present book provides the latest information along with the total list of seed transmitted virus and viroid diseases at global level including, the yield losses, diagnostic techniques, mechanism of seed transmission, epidemiology and virus disease management aspects. Additional information is also provided on the transmission of plant virus and virus-like diseases through vegetative propagules. It is also well known that seed transmitted viruses are introduced into new countries and continents during large-scale traffic movements through infected germplasm and plant propogules. The latest diagnostic molecular techniques in different virus-host combinations along with disease management measures have been included. The book shall be a good reference source and also a text book to the research scientists, teachers, students of plant pathology, agriculture, horticulture, life sciences, green house managers, professional entrepreneurs, persons involved in quarantines and seed companies. This book has several important features of seed transmitted virus diseases and is a good informative source and thus deserves a place in almost all university libraries, seed companies and research organizations.
Download or read book Proceedings of the Wisconsin Fertilizer Aglime and Pest Management Conference written by and published by . This book was released on 2002 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bean Production Problems in the Tropics written by Howard F. Schwartz and published by CIAT. This book was released on 1989 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first section reviews trends of bean production and constraints in Latin America and Africa. The second section covers fungal diseases. The third section, bacterial diseases. The fourth section, viral and mycoplasma diseases. The fifth section, insect pests. The last section, other bean production constraints, that is, nutritional disorders, nematodes, seed pathology, and additional problems.
Download or read book Compendium of Bean Diseases written by Howard F. Schwartz and published by American Phytopathological Society. This book was released on 2005 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction; Part I: Infectious diseases: Fungal diseases of subterranean parts; Fungal diseases of aerial parts; Diseases caused by bacteria; Diseases caused by nematodes; Diseases caused by viruses; Diseases caused by phytoplasmas. Part II: Noninfectious diseases: Environmental and genetic disorders; Seed quality. Glossary.
Download or read book Agrindex written by and published by . This book was released on 1993 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bean Production Problems written by Centro Internacional de Agricultura Tropical and published by Agribookstore/Winrock. This book was released on 1980 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crop Diseases written by Darwin Henry and published by New India Publishing Agency. This book was released on 2011-01-11 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant diseases are among the important factors that are responsible for causing yield loss in crop production. The loss due to diseases alone is estimated to be around 26 per cent. Diseases may attack at any stage of the standing crop, from seedlings till maturity of the crop. They may affect different parts of the plants, such as foliage, stem, root, flowers or seed and cause various types of symptoms, while the diseases such as wilt affect the entire plant. All these ultimately result in the reduction of yield and poor quality of the produce. Further, many pathogens continue to attack the stored grains and stored produce, and cause spoilage. To save the crops from diseases caused by pathogens and thereby to increase crop production, it is imminent that diseases have to be controlled by any means. To adopt various strategies for the control of pathogens, one should have some basic knowledge about the symptoms produced by the pathogens, their life cycle, mode of survival and spread, and the stage at which the host is most vulnerable to attack by the pathogens. Most of the cultivated varieties of different crops are susceptible to one disease or another, while some others are susceptible to many diseases. Even resistant cultivars of some of the crop species may become susceptible to some specific diseases in course of time as a result of development of new physiologic races of the pathogen by hybridization or natural mutation or when the environmental conditions are highly favorable for the pathogen and not quite favorable for the host. In this book the authors have given a detailed account of the major diseases of important field crops and horticultural crops, and their management. The text is substantiated with many hand-drawn illustrations, which are of excellent quality and in fact it is the highlight of the book. A on important edible mushrooms commonly grown in India, methods of cultivation of different mushrooms, diseases and pests attacking mushroom beds and mushrooms is also included in the book. This may be quite useful to emerging entrepreneur The book, which has been compiled as per the undergraduate syllabus of agricultural institutions, will also be of use to postgraduate students and to those working in the department of agriculture.
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1984 with total page 1086 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1973- include the following subject areas: Biological sciences, Agriculture, Chemistry, Environmental sciences, Health sciences, Engineering, Mathematics and statistics, Earth sciences, Physics, Education, Psychology, Sociology, Anthropology, History, Law & political science, Business & economics, Geography & regional planning, Language & literature, Fine arts, Library & information science, Mass communications, Music, Philosophy and Religion.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1974 with total page 1282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
