大豆籽粒产量是一个十分复杂的数量性状,受许多因素制约和影响,同时其他性状与产量也存在着不同程度相关,这就给育种工作带来了困难。本文在遗传、表型、环境相关分析的基础上,用遗传相关系数进行通径分析,借以明确主要产量构成因素对单株产量的直接与间接效应及相对重要性,为育种提供参考信息。 Soybean grain yield is a very complicated quantitative trait constrained and influenced by many factors. At the same time, other traits and yield also have different degrees of correlation, which brings difficulties to the breeding work. Based on genetic, phenotypic and environmental correlation analysis, genetic correlation coefficient was used to conduct path analysis in order to clarify the direct and indirect effects and relative importance of major yield components on single crop yield and to provide reference information for breeding.