对光—温敏核不育水稻花培后代在自然低温和人工光周期诱导下的育性研究表明,花培技术是选育和提纯光—温敏核不育水稻的重要辅助手段。在低温条件下,花培后代群体不育度在99％以上的植株,是供体亲本的7倍多。光周期对不同花培株系的诱导效果差异较大,02HS—4—1等株系不育性较稳定,可育期结实率较高。 Studies on the fertility of photosynthesis-thermo-sensitive genic male sterile rice (Oryza sativa L.) under the conditions of natural low temperature and artificial photoperiod showed that flower culture is an important assistant method for breeding and purifying light-temperature-sensitive genic male sterile rice. Under the condition of low temperature, the plants with more than 99% sterility were more than 7 times of the donor’s parents. Photoperiod showed different effects on the induction of different flower culture lines. The sterility of 02HS-4-1 lines was stable and the seed setting rate of fertile period was higher.