新两用核雄性不育材料的发现及研究初报

Discovery and analysis of new PTGMS lines

将在试验田亲本圃、杂交选育圃发现的雄性不育株进行不育度、不育稳定性、育性转换、起点温度、可繁性及测交恢复力鉴定 ,鉴定出两份不育度彻底、育性稳定、起点温度低、可繁性好的由基因突变引起的具有生产实用价值的两用核雄性不育材料 ,分别命名为早 2 5 S和美香 85 1S。

The male sterile plants discovered from the parental lines nursery of hybrid rice breeding, were detected on sterile degree, sterile stability, fertility transformation, critical temperature of the transformation, propagating and restoring ability of testcross. Two of the PTGMS lines with the characters, which were due to genic mutation, of complete sterile, stable fertility, lower critical temperature of the transformation and perfect multiplication had been selected and named as Zao 25S and Meixiang 851S, respectively.