Introduction : In soybean production, the lack of varieties having good seed quality, with respect to germinability, is an important constraint. Though several authors (Johnson et al., 1955; Schutz and Bernard, 1967; Shorter et al., 1977) have reported the role of genotype, environment, and genotype x environmental interaction for seed yield and seed weight, yet such information in respect to seed quality traits, such as percent hard seeds and germinahility is meager (Gupta and Garg, 1980). Therefore, in the present study, an attempt has been made to obtain information on the role of genetic, altitude and other climatic factors on seed yield and seed quality traits.