In order to explore the method of eliminating the hardness of Glycine soja seeds in Shaoyang City,the effects of different treatment time of concentrated sulfuric acid on its germination were studied.The results showed that at the optimum temperature,the germination rate and germination potential of the small-grained seeds treated with concentrated sulfuric acid for 45 min were the highest,reached 99.50% and 97.50%respectively.The germination rate and germination potential of the big-grained seeds treated w...