1. Soybean Research Institute; Jilin Academy of Agricultural Sciences/National Engineering Research Center for Soybean; Changchun Jilin 130033 China
2. Shenyang Agricultural Univ.; Shenyang Liaoning 110866 China
3. Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement; Dep. of Agronomy; Heilongjiang Bayi Agricultural Univ.; Daqing 163319 China