培矮64S是一临界不育温度低的温敏核不育系,不育性稳定,但可育转换和繁殖的问题复杂。为此,笔者1991年在长沙夏季和秋季用地下冷水对该不育系进行了处理试验。试验材料培矮645来自海南春繁的纯种。分两批播种,播期为4月3日和6月10日。前批播种的培矮64S群体中任选3株,每株按半 Pei’ai 64S is a thermo-sensitive genic male sterile line with low critical infertility temperature, which has stable infertility, but the problem of fertile transformation and multiplication is complicated. To this end, the author in 1991 in Changsha in summer and autumn with underground cold water treatment of the sterile line was tested. Peiwa 645 experimental material from Hainan Chunfan purebred. Seeding in two batches, sowing date April 3 and June 10. Peiwa 64S pre-sowing sowing optional three groups, each plant by half