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前言小麦粒重的遗传规律,国内在冬小麦有过不少的研究。认为粒重属于数量性状,受多基因控制,是一个遗传基础较复杂的性状。粒重是构成小麦产量的因素之一,提高单位面积产量,在保证一定穗数的基础上,增加穗粒数和增加粒重是两条不同的途径,所以育种工作者十分注意大粒型品种的选育。但如何选育大粒型品种,对杂种后代怎样选
Preface The genetic law of wheat grain weight, there have been many domestic studies in winter wheat. Belonging to the number of grain weight traits, controlled by multiple genes, is a more complex genetic basis of traits. Grain weight is one of the factors that make up wheat yield. Increasing the yield per unit area, on the basis of ensuring a certain number of spike, increasing spike grain number and increasing grain weight are two different ways. Therefore, breeders pay great attention to breeding. However, how to breed large grain varieties, how to choose the hybrid offspring