本研究以C型不育胞质为背景 ,A61 9为强恢复源 ,采用回交转育的方式 ,完成了豫玉 2 2的雄性不育三系配套。不育系的不育株率高达 99.8%以上 ,育性稳定 ;恢复系的恢复度高达 5级 ;恢复性杂交种的可育株率达99 %以上 ,散粉结实正常 ,其它形状与N豫玉2 2基本一致 ,符合目标要求 ,可单独投入生产使用。 In this study, C-type sterile cytoplasm was taken as the background, A61 9 was a strong recovery source, and the backcrossing method was used to complete the three-line male sterile Yuyu 2 2 mating. The sterile line rate of sterile lines was as high as 99.8%, and the fertility was stable. The recovery degree of restore lines was up to 5 levels. The fertile line rate of restoring hybrids was more than 99% 2 2 basically the same, meet the target requirements, can be put into production for use alone.