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在高海拔长日低温、低海拔短日高温、低海拔长日高温和人工气候室长光低温条件下，进行了光温敏核不育水稻分离世代的不育株出现频率以及选择实用型不育系的效果和选择方法的研究。结果表明，长日高温条件下不育株的出现频率平均比长日低温条件下的出现频率高２．４倍，从而认为通过长日低温的选择，可淘汰大部份育性转换起点温度高的不育株。在长日低温和短日高温条件下进行一个世代二次选择，可有效地选择实用型的光敏核不育系。通过５年研究建立起来的水稻光温敏核不育系选择程序，实用性和操作性强，对今后的选育工作具有指导性意义。
Under the conditions of high-altitude long-day low temperature, low-altitude short-day high temperature, low-altitude long-day high temperature and artificial climate long-term light and low temperature conditions, the occurrence frequency of sterile generation of photo- Study on the Effect and Selection of Fertility System. The results showed that the frequency of emergence of sterile plants under long-day high temperature was 2.4 times higher than that under long-day low temperature conditions, so that the choice of long-day low temperature could eliminate most of the transitional temperature of fertility transition Of sterile plants. In the long-day low temperature and short-day high-temperature conditions for a second-generation selection, can effectively choose a practical type of photosensitive male sterile line. The selection procedure of rice thermo-photo-thermo sensitive genic male sterile line established by 5 years of research has strong practicability and operability and is instructive for future breeding.