Sp., Ti and Ep Allele Frequencies Among 82 Representauves of Cultivated Varieties of Soybean in China Superoxide Dismutase (SOD)Zymogram Patterns and Their Geographical Distribution of Wild (Glycine soja) and Cultivated Soybean (G. max) in China Studies on rDNA ITS1 Regions of Soybean and Its Wild Relatives Study on the Superoxide Dismutase of Soybean Seeds from Different Species in Subgenus Studies on the Evolutionary Relationship among Eco-types of G.max and G.soja in China GUS Expression in Protoplasts of Immature cotyledons of Soybean The Combining Ability Analysis in Main Agronomic Characters for Three Different Types of Soybean and Their Generation Different response of photosynthetic apparatus between wild soybean (Glycine soja) and cultivated soybean (Glycine max) to NaCl stress MORPHOLOGICAL INDEXES OF DROUGHT RESISTANCE OF SOYBEAN ACCESSIONS AND ITS COMPREHENSIVE EVALUATION ON FLOWERING AND PODDING STAGE