玉米株型性状的亲子相关与杂种优势

利用了80个新组合及其亲本自交系研究了其株型性状的亲子相关、杂种优势，并分析了杂种优势与亲子相关的关系。结果表明：大多数株型性状与母本的相关性较大，而与父本的相关性较小；F₁杂种优势较大的株高、叶面积等性状的亲子相关表现不受杂种优势大小的影响。

The Correlation and Heterosis of Plant-type Traits in Maize

The correlation between combinations and their parents, and the heterosis were studied as well as relationship between heterosis and correlation of parents and their combinations in this article. The results were that the most of plant-type traits of F₁ generation were highly correlated with their female parents, but lowly by their male parents. For some traits in which the heterosis was relatively high in F₁ generation, such as plant height and leaf area, the relationship between F₁ and their parents were not affected by the magnitude of heterosis.