Download or read book Linkage Relations Between Resistance to Phytophthora Root Rot and Plant and Seed Characteristics in the Soybean written by Md. Fazlul Haque and published by . This book was released on 1962 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Relationship Between Tolerance to Phytophthora Root Rot and Yield of Soybean written by Daniel R. Scott and published by . This book was released on 1992 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Identification and Characterization of Rate reducing Resistance to Phytophthora Megasperma F Sp Glycinea in Soybean written by Paul W. Tooley and published by . This book was released on 1982 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Partial Resistance to Phytophthora Root Rot in Soybean and Association with Tolerance to Saturated Soil Conditions written by William Jay Werk and published by . This book was released on 2005 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Special Report written by and published by . This book was released on 1988 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Races of the Pathogen Phytophthora Sojae Found in Michigan and Factors Affecting Root Rot of Soybean written by Richard Chemjor Kaitany and published by . This book was released on 2000 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heritability of Tolerance to Phytophthora Root Rot in Two Three and Four parent Soybean Populations written by Karl D. Glover and published by . This book was released on 1996 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Agricultural Research written by and published by . This book was released on 1930 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agronomic and Molecular Marker Mapping of Brown Stem Rot Phytophthora Root Rot and Powdery Mildew Resistance in Soybean written by David Glenn Lohnes and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Diseases are a major factor limiting the yield of soybean (Glycine max (L.) Merr.). Brown stem rot of soybean, caused by Phialophora gregata (Allington and Chamberlain) W. Gams, and phytophthora root rot, caused by Phytophthora sojae Kaufmann & Gerdemann, are major diseases of soybean in Illinois. A gene for resistance to powdery mildew, caused by Microsphaera diffusa Cke. & Pk., has also been found to be linked to a gene for phytophthora resistance. A field study was conducted to determine yield differences between isolines carrying different alleles at the locus for powdery mildew resistance, greenhouse experiments were performed to study the inheritance of brown stem rot resistance, and laboratory experiments were conducted in attempts to find molecular markers linked to brown stem rot, phytophthora, and powdery mildew resistance in soybean. When isolines carrying alleles for powdery mildew resistance are compared, the resistant isolines yielded 7% more than the adult-plant resistant isolines. With this yield advantage, it would be advantageous to use complete resistance to powdery mildew as a marker to select for phytophthora resistance in a soybean breeding program. Classification of reaction to brown stem rot of soybean populations indicates that a Clark isoline contains Rbs3, and that a germplasm line deriving resistance from PI 90.138 contains Rbs1 and another unknown resistance gene. Molecular marker analysis of Harosoy and a Harosoy brown stem rot isoline did not produce any polymorphic markers. Clark, Harosoy, and Williams were screened with several RAPD primers to determine the random amplified polymorphic DNA (RAPD) variability present between these cultivars. The percentage of RAPD products in common was 94% for Clark and Williams, 90% for Clark and Harosoy, and 84% for Harosoy and Williams. The material cost of running a single RAPD reaction ranged from 21 to 76 cents. Linkage analysis of the restriction fragment length polymorphism and disease classification revealed that the loci studied are in classical linkage group 19 and RFLP linkage group J, in the most likely order Rps2 Rmd Rj2 pA233 pA724 pK375. This is the most agronomically important gene-dense region of the soybean molecular map identified to date.

Download or read book Bulletin written by University of Missouri and published by . This book was released on 1963 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Mapping in Experimental Populations written by J. W. Van Ooijen and published by Cambridge University Press. This book was released on 2013-08-08 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise introduction to genetic linkage map construction for biological researchers, combining theory with practical exercises and problem-solving tips.

Download or read book Soybean Genetics Newsletter written by and published by . This book was released on 1977 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Integrated Management of Phytophthora Stem and Root Rot of Soybean and the Effect of Soil applied Herbicides on Seedling Disease Incidence written by Vinicius Castelli Garnica and published by . This book was released on 2019 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soybean seedling diseases and Phytophthora stem and root rot (PSRR; caused by Phytophthora sojae) are two of the most economically important diseases in North Central U.S. Remarkable differences in disease incidence occur each year, which demonstrate that abiotic and biotic factors must interact for disease onset and development. During 2017 and 2018, field studies were conducted to (i) address the efficacy of seed treatment and genetic resistance for PSRR management on soybean population, canopy coverage (CC), and yield, and (ii) investigate potential interactions between pre-emergence (PRE) herbicides and the incidence of seedling diseases in alluvial soils in Nebraska. Despite field history, PSRR developed in only four of six environments studied. Commercial seed treatment had a positive effect on plant population density, CC, and yield in at least three environments. Compared to non-treated control, seed treatment increased emergence between 11,600 to 53,700 plants ha-1 and early-season CC between 0.7 to 1.2%. Under high disease pressure, management programs using moderately resistant cultivars improved yields when compared to moderately susceptible cultivars. By contrast, minimum yield differences were detected between Rps1k andRps1c genotypes, except in one environment. While a weak to moderate correlation was observed between CC and incidence of P. sojae symptomatic plants, a moderate to strong association was found between CC and yield. Across multiple environments, PRE herbicides chlorimuron-ethyl, metribuzin, saflufenacil, sulfentrazone, and flumioxazin had no impact on seedling root rot (disease severity index; DSI) when compared to the non-treated control. Similarly, no significant differences between PRE herbicides were detected on plant population, plant height, and yield. Community composition depicting primary pathogenic genera Fusarium, Phytophthora, Pythium, and Rhizoctonia did not occur at random but rather varied across environments and DSI classes. In two of the three environments, Phytophthorastructured approximately 22% of primary pathogenic genera, whereas, Rhizoctoniarecovery was low (

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 Soybean Phytophthora Root Rot written by Jose Cristino Melgar and published by . This book was released on 1997 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book QTL Mapping of Phytophthora Root Rot Resistance and Aphid Resistance in Soybean written by Zhongnan Zhang and published by . This book was released on 2012 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Graduate School Announcement written by University of Missouri--Columbia. Graduate School and published by . This book was released on 1963 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: