Impact of Wheat on Soybean Cyst Nematode Population Density in Double-Cropping Soybean Production

Engineered Soybean Cyst Nematode Resistance

Distribution of soybean cyst nematode in nebraska.

A survey of 552 soybean fields in 20 counties in Nebraska in 1986-88 revealed 35 fields infested with the soybean cyst nematode (SCN), Heterodera glycines. Identification was confirmed with a greenhouse bioassay, using 'Lee 74' soybean, and by the application of a DNA hybridization probe derived from SCN mitochondrial DNA. Most of the SCN-infested fields were located on the Missouri River flood...

Fusarium root rot of soybean – occurrence, impact, and relationship with soybean cyst nematode

Mercedes Diaz Arias, graduate student, Seed Science Center and Plant Pathology, Iowa State University; Gregory L. Tylka, professor, Plant Pathology, Iowa State University; Alison Robertson, assistant professor, Plant Pathology, Iowa State University; Leonor Leandro, assistant professor, Plant Pathology, Iowa State University; Gary Munkvold, professor, Seed Science Center and Plant Pathology, Io...

Effects of Rhizobacteria on Soybean Cyst Nematode, Heterodera glycines.

Rhizobacteria were isolated from the rhizoplane and rhizosphere of soybean plants from fields in Arkansas and tested for their effect on numbers of soybean cyst nematode (Heterodera glycines). In initial greenhouse tests in heat-treated silt loam soil, 138 of the 201 bacterial isolates tested had no influence on numbers of cysts and eggs + second-stage juveniles (J2) of H. glycines, 36 reduced ...

Effect of Soybean Cyst Nematode on Fatty Acid Levels of Soybean Seed

Growing soybean cyst nematode (SCN, Heterodera glycines Ichinohe) resistant varieties in fields infested with SCN can improve yield, but the impact of SCN on seed quality of lines with modified seed composition is unknown. The objective of this study was to determine if SCN resistant or susceptible rootstock influenced the composition of seed of soybean lines developed for desirable elevated le...