在开展光 (温 )敏核不育水稻研究过程中发现 ,把杂种优势利用与常规育种结合起来进行全方位的水稻育种是可行的。利用优异强优组合的后代进行轮选可育出比常规品种增产显著的品种 ;采用多个组合或多个品种混交轮选及群体改良育种 ,虽然育种的周期较长 ,但分离的类型较多 ,有利于对多元品种的选育 ,可作为中、长期育种计划来安排 In the process of developing the thermo-sensitive genic male sterile rice, it was found that it is feasible to combine heterosis with conventional breeding for all-round rice breeding. The progeny of excellent combination of excellent and excellent can produce more varieties than the conventional varieties by round robin selection. With multiple combinations or multiple varieties of mixed round selection and group improvement breeding, although the breeding cycle is longer, the types of separation are more , Is conducive to the breeding of multiple varieties, can be used as medium and long-term breeding programs to arrange