通过对高油品种东农163、高产品种黑农37、高蛋白品种东农42在各个生育时期内取样，对不同大豆品种产质性状动态取样进行研究，得出大豆各个性状在生育时期内的动态规律。通过种植大豆在不同的生育时期内的取样分析，得出在生育期内平均鲜荚重、平均鲜粒重开始呈上升趋势，后期平均鲜荚重和平均鲜粒重呈下降趋势。平均粒荚比和粒荚比呈上升趋势，每荚平均粒数在2-3之间。通过对蛋白质含量和油分含量中的分析得出，高蛋白品种的蛋白质含量生育时期内的蛋白质含量始终处于最高。高油品种在各个生育时期内的油分含量始终最高。

Through the experiment of the high oil breed Dongnong163,the high yield breed Heinong37 and the high protein breed Dongnong42 in every bearing periods sampling. researching dynamic samples analysis of chemical quality yield and quality character of the soybeans. We had the conclusion that the dynamic law of soybean of every character in bearing periods. Through taking the sample to analyse during the different bearing period of the planting soybenan. We had the conclusion that the average weight of the fresh pod and the fresh grain appear the rising tendency at the beginning, but later it appeared to descend. The ration of the grain to pod began to rise . average each grain number was round about 2-3.Through the conclusion that analyse the content of the protein and the oil, we could know that the content the protein which in the high protein strains was the highest during the bearing period , and the content of the oil in the high oil strains was always the highest during every bearing period.