title: Effect of Rotylenchulus reniformis on Yield and Nitrogen, Potassium, Phosphorus and Amino Acid Content of Seed of Glycine max.
abstract: Soybean cultivars varied in their response and tolerance to low initial Rotylenchulus reniforrnis populations of 10,000 nematodes/3.8 liters of soil, but a high initial population of 25,000 consistently reduced yields on resistant and susceptible cultivars by an average of 33.1%. At the 10,000 nematode inoculum level, dry seed yields of Hood decreased while those of Pickett increased significantly. Generally, total phosphorus decreased 11.1 and 11.5% and potassium increased 5.9 and 4.5% in seeds harvested from plants receiving initial inoculum levels of 5000 and 10,000 nematodes/pot, respectively. Little change in the total nitrogen content in seed was noted. Leucine content of seeds from infected plants was slightly less than from noninfected plants.
authors.forename: R V
authors.initials: RV
authors.lastname: Rebois
authors.forename: W C
authors.initials: WC
authors.lastname: Johnson