中国南方大豆干物质积累、分配等生理性状与产量的关系

对73个生育期相近产量水平不同的南方大豆品种研究结果说明,籽粒产量与生物量及收获指数正相关,尤以后者更密切。鼓粒期茎叶比与收获指数显著相关,因而也与籽粒产量显著相关。初花期、结荚期等干物重与生物量显著相关,因而也与产量显著相关。作物生长率反映干物质积累的速度,与生物量及籽粒产量显著相关。叶质重、生殖生长期/营养生长期比值因分别与净同化率及收获指数相关而与产量显著相关。

A STUDY OP CORRELATIONS BETWEEN YIELD ANDDRY MATTER ACCUMULATION,PARTITION AND OTHERPHYSIOLOGICAL TRAITS IN SOYBEANS

seventy-three soybean varieties,with similar maturity date and different yield level,from southern China were tested in a randomized block experiment with three replications in Nanjing,986.The results showed that yleld was signifieanthy ceormlated with biomass and harvest index especially the latter.The ration of stan to leaf at R6 stage was correlated with harvest index,and ,in turn,with yield.Dry matter weight at R1 and R4 were (?) with (?) ,and ,in (?),with yield.;Crop growth rate,as the resnlt of dry matter accumnatation,was also eorrelated with (?)