Corpus ID: 209549351

Four new physiologic races of Phytophtora megasperma f. sp. glycinea

  title={Four new physiologic races of Phytophtora megasperma f. sp. glycinea},
  author={B. Keeling},
  journal={Plant Disease},
Identification et caracterisation de 4 nouvelles races physiologiques de P.m.f.sp.g. provenant de cultures de soja dans le delta du Mississippi 
12 Citations
A new race of Phytophthora megasperma f.sp. glycinea on soybean in Australia
An isolate of Phytophthora megasperma f.sp. glycinea from soybean cv. Ridley growing near Forbes in the Lachlan Valley, New South Wales, was classified as race 4 after hypocotyl inoculation on aExpand
Races of Phytophthora megasperma f.sp. glycinea (Phytophthora Rot) Affecting Soybeans in North Alabama
Soil-borne pathogens isolated from the soil and suspected Pmg-affected root samples in Morgan, Adadison, and Limestone counties were Pytbium spp. Expand
Changes in racial composition of Phytophthora sojae in Iran between 1998 and 2005
There was no variability in virulence of Phytophthora sojae between the areas surveyed and race identification was made possible by inoculating differential soybean cultivars and lines. Expand
Races of Phytophthora sojae in Iran.
Low diversity in Iranian population of P. sojae was shown in a survey during 2004-2005, where the majority of tested isolates (110 isolates) belonged to race one of P-SOjae, and Sequences of this regions were similar to other gene banks sequences except two isolate from China. Expand
Relationship of cyst nematode gene frequencies to soybean resistance
Basic genetic principles were used to concurrently derive the models and to obtain discontinuous distributions of numbers of cyst phenotypes in segregating generations due to one recessive alin in a CN-“susceptible” soybean line. Expand
Comparison of Haro-isolines with traditional soybean race differentials to distinguish races of Phytophthora sojae
Use of the new set of differentials, based on Harosoy isolines, did not improve the overall race determination of eight selected field isolates of Phytophthora sojae, and computations using the traditional differential set generally gave a closer fit to a race. Expand
Influence of pyroxyfur seed treatment, inoculum density, and low level cultivar resistance on Phytophthora megasperma f. sp. glycinea rot of soybean
Seeds of two soybean cultivars differentially susceptible to race 6 of Phytophthora megasperma f. sp. glycinea (Pmg), were treated with the fungicide pyroxyfur at rates of 0, 0.34, 0.68, and 1.36gExpand
Pathotypes and metalaxyl sensitivity of Phytophthora sojae and their distribution in Heilongjiang, China 2011–2015
The results of the present study suggest that incorporating Rps genes 1c, 1k, and 3a into soybean cultivars and the use of metalaxyl-coated seeds should provide integrated approach to manage Phytophthora root and stem rot of soybean in Heilongjiang, China. Expand
A quantitative trait locus influencing tolerance to Phytophthora root rot in the soybean cultivar ‘Conrad’
A total of 99 simple sequence repeat, or microsatellite, markers that were polymorphic and clearly segregated in the F6 mapping population were used for QTL detection and were estimated to explain 13.7% and 21.5% of the total phenotypic variance, respectively. Expand