Identification the resistance of soybean germplasm to SMV3.

Three hundred and fourty-eight soybean accessions have been identified for resistance to SMV by inoculation with SMV 3, a strong virulent strain in Northeast China. The results showed that 113 accessions were higly resistant to SMV3, account for 32.47%. 113 accessions were moderately resistant to SMV3, account for 32.47%. 122 accessions were susceptible to SMV3, account for 35.06%. Resistant accessions were mainly originated form Northeast China and Huang Huaihai areas. There were few resistant accessions from South China in our evaluation. Resistant accessions were mainly from Liaoning, Shandong, Shanxi provinces and Bejing, U. S. and South Korea.