一、主体亲源在常规育种的地位众所周知,常规育种离不开亲本,离不开对亲本来源的了解.大量的育种实践说明,选择优良的亲本,抓住主体亲源,是育种成功的关键.在国内,根据1982年四川省农科院水稻所报导,在过去的16年中,他们配制了2050个组合,真正育成良种的仅24个,占总组合的1.17%.这不仅说明了选育效果差,而且说明 First, the status of the main source of progeny in the routine breeding As we all know, conventional breeding can not be separated from the parent, can not do without understanding of the source of the parent a large number of breeding practice shows that the selection of good parents to seize the main source is the key to breeding success In China, according to the report of the Sichuan Provincial Academy of Agricultural Sciences on rice in 1982, in the past 16 years they have formulated 2050 combinations, and only 24 of them have truly bred varieties, accounting for 1.17% of the total. This shows not only Education effect is poor, and that