[1]Institute of Plant Protection;
Chinese Academy of Agricultural Sciences;
Beijing 100193;
P.R.China;
[1]Institute of Plant Protection;
Chinese Academy of Agricultural Sciences;
Beijing 100193;
P.R.China;
[1]Institute of Plant Protection;
Chinese Academy of Agricultural Sciences;
Beijing 100193;
P.R.China;
[1]Institute of Plant Protection;
Chinese Academy of Agricultural Sciences;
Beijing 100193;
P.R.China;
[1]Institute of Plant Protection;
Chinese Academy of Agricultural Sciences;
Beijing 100193;
P.R.China;
[1]Institute of Plant Protection;
Chinese Academy of Agricultural Sciences;
Beijing 100193;
P.R.China;
[2]College of Plant Protection;
Hunan Agricultural University;
Changsha 410128;
P.R.China;
soybean; ethane methylsulfonate-mutagenesis populations; mutants; soybean cyst nematode race 4; resistance;