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对水稻籼、粳、糯品种的100多个辐射突变体的农艺性状进行观察研究结果,辐射能使水稻农艺性状发生双向性多种变异,既可直接选育新品种,又是创造新基因的手段,对丰富种质资源和育种材料具有重要价值;诱发突变与自然突变具有同质性,前者可大大增加基因突变的速率和频度;本试验中被研究的同一突变基因在不同类型稻种遗传背景下有相似的表现;大多数突变基因均具有多效性。
The results of observing the agronomic traits of more than 100 radiated mutants of rice indica, japonica and waxy varieties show that the radiation can make the agronomic traits of rice undergo two-way multiple variations, which can not only directly breed new varieties but also create new genes Which is of great value to abundant germplasm resources and breeding materials. Mutagenesis induced by mutation is homogeneity with natural mutation. The former can greatly increase the rate and frequency of gene mutation. The same mutant gene under study in different types of rice Similar in the genetic background; most of the mutated genes are pleiotropic.