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常规杂交育种,一直是国内外创造新品种的主要手段,然而选中率很低,如何提高选中率,是个复杂的问题,它关系到亲本的选择,配组的方式、选择方法等诸条件。只有做到取材准确,配组巧妙,才能在后代变异中出现较多优良基因重组型,增加单株入选率。我们曾对国内外名牌品种的系谱进行了认真分析,并确定了主体骨干亲本加以应用。在20年的水稻常规杂交育种中,亲本一方采用在当地大面积推广中显示出强生命力的当家品种为
Conventional crossbred breeding has always been the main means of creating new varieties both at home and abroad. However, the selection rate is very low. How to increase the selection rate is a complicated issue. It is related to the choice of parents, the way of matching and the selection method. Only done accurate, with clever team, in the offspring mutation in the emergence of more good gene recombination, increase the rate of individual selection. We have conducted a careful analysis of pedigree of famous brand at home and abroad, and identified the main backbone of the parent to be applied. In the 20 years of conventional rice cross breeding, the parental party adopted the local varieties that showed strong vitality in large-scale popularization in the local area