Evaluation location: Illinois, United States
Evaluation of Soybean Plant Introductions from China for Resistance to Brown Stem Rot. Modified root dip inoculation as described in: Sebastian, S.A., C.D. Nickell, and L.E. Gray, 1985. Efficient selection for brown stem rot resistance in soybeans under greenhouse conditions. Crop Sci 25:753-757. Lines were considered resistant if they were less susceptible than the most susceptible resistant check (PI 437833 with 0.02% brown nodes/plant BSR score). Any PI's that showed a resistant or unconvincing response the first time were retested. The screening was done between Sept and May 1999-2001.