早熟大豆品种产量与主要农艺性状的灰色关联度分析

Grey Correlative Analysis on Yield and Main Agronomic Traits of Early-maturing Soybean

为了明确早熟大豆品种产量与主要农艺性状间的关联性,利用灰色关联度分析法,对16个早熟大豆品种的产量及农艺性状进行分析。结果表明:与大豆产量相关的6个主要农艺性状的关联度为:单株粒数>百粒重>单株荚数>株高>节数>分枝数。说明单株粒数对早熟大豆的产量影响最大,其次是百粒重和单株荚数,而株高、节数、分枝数影响较小。所以在早熟大豆育种时,应该侧重于选择单株粒数多与百粒重大的品种或植株。

In order to define the correlations of early-maturing soybean varieties between yield and main agronomic traits, the yield and agronomic traits of 16 soybean varieties were analyzed by grey relational grade analysis methods. The results showed tha＇~ the correlation of six mayor agronomic traits which related to yield was grain number） 100-seed weight~ pod number） height） node number） branch number, it indicated that grain number per plant had the greatest influence on yield of early-maturing soybean, the height, node number and branch number had less effect on yield. Therefore grain number per plant and 100-seed weight should be fo- cused on the selection of plant on breeding early-maturing soybean.