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在人工控制气候条件下，通过对大量光温敏不育材料的试验观察，对水稻光温敏核不育系育性稳定性的现象、本质、控制途径和鉴定技术等问题开展了系列研究。结果认为：（1）就现有资源而言，温度和光照都是引起不育系育性转换的因素，不存在纯光敏类型；（2）不同光温敏不育系育性转换对温度的最敏感期有差异，存在3种不同的类型；（3）实用不育系最关键的技术指标，就是导致不育的起点温度要相对地低，具体的安全不育起点温度指标的界定应根据选育地区历年的气候资料进行分析；（4）在常规繁殖条件下，光温敏不育系不育起点温度存在难以避免的世代间漂移现象，但在已经发生漂移的后代群体中，通过增加低温选择压力，可以遴选到不育起点温度仍保持稳定的典型单株。还对华中稻区适合的不育起点温度参数以及“漂移”控制途径（核心种子技术）进行了讨论。
Under artificial climate control, a series of researches on the phenomena, the essence, the control ways and the identification techniques of the fertility stability of the photosynthetic thermo-sensitive genie male sterile line in rice were carried out by observing a large number of photosynthetic thermo-sensitive genic male sterile materials. The results showed that: (1) For the existing resources, both temperature and light were the factors that caused the fertility transformation of CMS, and there was no pure photo-type; (2) The most sensitive period there are differences, there are three different types; (3) The most critical technical indicators of practical sterile lines, is the starting point of the resulting infertility temperature is relatively low, the specific starting point of safety of sterile sterility should be defined according to (4) Under conventional breeding conditions, there is an unavoidable phenomenon of intergenerational drift in the starting temperature of the photo-thermo-sensitive genic male sterile lines. However, in the offspring population that has already drifted, Select the pressure of low temperature, can be selected to the starting point of infertility temperature remained stable typical plant. The appropriate starting temperature parameters for sterile in central China and the “drift” control approach (core seed technology) were also discussed.