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我国抗稻瘟病育种的历史,可根据育种方法的演变和使用抗源大致分为四个阶段:1.系统育种阶段,最主要的方法是利用自然变异进行单株选择的系统育种法(或称纯亲育种)。多是利用地方品种作抗源。2.系统育种与杂交育种阶段,此阶段的特点是系统育种与杂交育种并用,专业机构与群众育种并行,所用抗源为地方品种和外国抗源并用。3.以杂交育种为主,多种途径并行的阶段,突出成就是大面积推广应用杂
The history of resistance to rice blast in China can be divided into four stages according to the evolution of breeding methods and the use of resistant sources: 1. The most important method in systematic breeding stage is to use the systematic breeding method Pure parental breeding). More is the use of local varieties as a source of resistance. 2. System breeding and hybrid breeding stage, this stage is characterized by systematic breeding and hybrid breeding, professional institutions and mass breeding in parallel, the use of local varieties and foreign sources of resistance and use. 3. The main cross-breeding, a variety of ways to parallel stage, highlighting the achievements of large-scale popularization and application of miscellaneous