冬小麦强优组合选配及其遗传力分析

The Collection of Higher Hybird Vigor Crosses and Analyses of Heritability for Winter Wheat

以 6个冬小麦优良亲本测配的 15个组合的F1为试验材料 ,分析了子粒产量与其 4个主要数量性状的遗传力、遗传进度及表现型、遗传型和环境型的相关性。结果表明 ,冬小麦F1材料中具有很强的增产优势组合。产量的遗传力高、遗传进度大 ,与穗粒数、千粒重、株高和穗长的遗传型相关均呈正相关。因此 。

crosses (F 1) crossed from 6 winter wheat parents were taken as testing materials.The heritability of four main quantative characters,and yield,genetic correlation of heritability and environment,genetic advance and charaters were analysed.The results showed that there were strong crosses of high yield potential in F 1 of winter wheat and higher heritability and of seeds per ear,1 000 kernel weight,and length of ear.Thus it is reliable to selecting strong superiority crosses according to yield.