Study of Glycine Soja Resistance to Aphis glycines. I. Screening of Resistant Varieties

摘要

A total of 985 wild and semi-wild soybean accessions were field screened for resistance to the aphid. The investigation involved inoculating A. glycines in cage houses, and was carried out for two years. We identified that three wild soybeans 85-32, 85-39 and 85-1 had resistance characters on A. glycines, whose resistance level was identified to be “High Resistance (HR)”. The aphid resistance characters in these three materials were higher than those found in cultivated soybean materials. The damage index difference significance level test and the observed growth rate of aphis populations also further demonstrated an obvious difference in the resistance characters between the wild soybeans and A. glycines; simultaneously, they validated the aphid resistance characters in the above three materials.