研究作物数量性状的相关对育种以及制定农业技术都有重要意义。在多数情况下,农作物的经济性状是多基因的,有相当大的诱发变异性。因此,当相关系数(r)在不同的栽培条件均能稳定地保持不变的情况下,才可根据某个性状的数据来确定该性状的变数。在研究表型相关系数的时候,要估计到这个事实:即品种是由不同的表现型所组成,这些表现型的 Research on the correlation of quantitative traits in crops has important implications for breeding and for developing agricultural technologies. In most cases, the economic traits of crops are polygenic, with considerable variability induced. Therefore, when the correlation coefficient (r) is stable under different cultivation conditions, the variation of the trait can be determined based on the data of a trait. When studying phenotypic correlations, estimate the fact that breeds are made up of different phenotypes