An isolate of SMV (H16) obtained from mottled seed of soybean cultivar,Heilong 16, was characterized and compared with two SMV isolates (S-6 and S-7) from Arkansas.

• 将从大豆黑农16号分离的毒株SMV-H-16与美国阿肯色州分离的两个毒株SMV-S-6及S-7比较；三毒株的寄主范围基本相同；只系统侵染大豆；在几个菜豆品种上形成局部斑.