自1984年以来,我们采用一定的技术程序,筛选环境敏感型的核不育材料。1987年在R59品系的20株群体中发现了10株7-8月份表现雄性不育,9月又转为雄性可育的育性变异株。收获不育株上可育期所结的种子,经1988和1989两年的育性温光反应和遗传研究,确认它为一个籼稻温敏感核不育突变。这些变异株除了育性变异外, Since 1984, we have adopted a number of technical procedures to screen for environmentally sensitive nuclear sterile materials. In 1987, 10 strains of fertile plants that showed male sterility in July-August and male fertile in September were found in 20 populations of R59 strains. Fertile plants harvested on the fertile period of the seeds, after two years of fertility in 1988 and 1989 two years of light and genetic research, to confirm it as a indica rice thermo-sensitive sterile mutation. In addition to these mutant strains of fertility variation,