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小麦育种无论采用那种方法手段,都要通过选择才能达到目的。能否较准确地发现和选留有价值或淘汰无价值的变异,提高对育种材料选择的识别能力是一个关键。要提高选择效果,就要掌握亲本的性状遗传变异规律和性状间的相互关系。近年来我们在育种实践中,对冬小麦株高、粒重、早熟性等几个主要性状进行了调查,并做了初步统计分析,现汇总如下:
Regardless of the method of wheat breeding, we must choose to achieve the goal. Whether we can identify and select valuable or eliminate valueless variation more accurately and improve the ability to identify breeding materials is the key. To improve the selection effect, we must grasp the parental traits of genetic variation and the relationship between traits. In recent years, we practice in breeding, the winter wheat height, grain weight, precocity and several other major traits were investigated and made a preliminary statistical analysis, are summarized below: