选取33份抗线大豆品种(系)分成早熟、中熟、晚熟3组进行生育期结构与百粒重、产量的相关性分析。结果表明:(1)随着生育期的延长生育前期所占的比例缩小,生育后期所占比例增加;越晚熟类型的品种百粒重、产量越高;(2)早熟、中熟品种间生育阶段与百粒重、产量相关不显著,晚熟品种生育期与小区产量呈显著正相关,结荚鼓粒持续时间与百粒重、小区产量均显著正相关;(3)总体样本内全生育期、生育后期对小区产量、单株产量的相关均达到显著水平,其中全生育期与小区产量相关系数最大,为0.496 7;(4)生育后期与百粒重的相关系数最大,达到显著水平,为0.409 4。综上可知,全生育期、生育后期是影响百粒重和产量的主要因素。 33 lines of resistant soybean were selected and divided into three groups: early maturity, middle maturity and late maturity. The results showed as follows: (1) The proportion of early growth period decreased with the extension of growth period, and the proportion increased in late growth period. The higher the late grain yield was, the higher the yield was. (2) Stage and 100-grain weight, the yield was not significant, the late-maturing varieties of the growth period and the yield of the community was significantly positive correlation, the duration of podgrass and grain weight, cell yield were significantly positively correlated; (3) , And the correlation between yield and yield per plant reached a significant level in the later growth period, of which the correlation coefficient was the highest in the whole growth period and the yield of the plot, which was 0.496 7; (4) The correlation coefficient was the highest at the late growth stage and 100 kernel weight, reaching the significant level, Is 0.409 4. In conclusion, the whole growth period and the later growth stage are the main factors that affect the grain weight and yield.