论文部分内容阅读
利用黄淮地区的12个高产夏大豆品种(系),通过NCⅡ交配设计,对12个主要农艺性状的遗传进行了分析。结果表明,所有性状的加性方差大于显性方差。主茎节数、株高、每簇荚数和主茎荚数的加性成分占绝对优势,遗传力较高。分枝荚数、单株粒数和单株粒重的显性成分比例大,遗传力较低,其中单株粒重趋于完全显性。主茎节数的显性成分很少,其它性状均为部分显性。建立了单株产量与产量因子之间的逐步回归方程。
Twelve high-yielding summer soybean varieties (lines) in Huanghuai region were used to analyze the inheritance of 12 major agronomic traits by NCⅡ mating design. The results show that the additive variance of all traits is greater than the dominant variance. The number of main stems, plant height, the number of pods per pod and the number of main stem pods accounted for the absolute advantage of the composition, higher heritability. Branching pod number, grain number per plant and weight per plant significant proportion of dominant components, lower heritability, grain weight per plant tends to be completely dominant. The dominant component of the main stem segments few, some of the other traits are dominant. A step-by-step regression equation was established between the yield per plant and yield factors.