光敏核不育水稻的花粉育性,可依种植地区与种植季节而变化。同一品系既可用作不育系而制杂交稻种子,又可自交繁殖而省去保持系。为水稻杂种优势利用改“三系法”为“二系法”开辟了新途径。光敏核不育材料育性可转换是该材料的宝贵之处。同时,这种可转换特性,特别是温度参预育性转换的调控引起的育性波动,给生产利用带来了一定困难。这种困难同其他科学研究中所遇到的困难一样,有待于进一步研究,加以 Photosensitive genic male-sterile rice pollen fertility, according to planting areas and planting season and change. The same line can be used as a sterile line hybrid rice seeds, but also self-breeding and save the Department. Utilizing the reform of the “three lines” as the heterosis of rice has opened up a new way for the “two-line method.” Photosensitive nuclear sterile fertile material conversion is the material’s valuable. At the same time, this kind of transformable property, especially the fertility fluctuation caused by the regulation of temperature and fertility conversion, brings some difficulties to production and utilization. This difficulty, like the difficulties encountered in other scientific studies, remains to be further studied and added