Abstract: Eight combinations were obtained by crossing two types alloplasmic homonucleus male sterile lines with their two restorer lines, respectively, and the difference of effects at the male sterile cytoplasm on hybrid rice with homonucleus background was compared, under randomized black experiment. The results indicated that the effects of male sterile cytoplasms of Yegong on the yield and major agronomic characters in hybrid rice were superior than those of abortive wild rice. It is an exploitable new type male sterile cytoplasm.

Key words: agronomic character, hybrid rice, male sterile cytoplasm, restorer line, yield

摘要： 由夜公和野败的两个异质同核不育系分别与两个恢复系杂交，配制8个组合进行随机区组试验，在相同核背景下比较不同雄性不育细胞质对杂交水稻的影响。结果表明，夜公雄性不育细胞质对杂交水稻产量和主要农艺性状的影响优于野败，是一个可以开发利用的雄性不育细胞质。

关键词: 农艺性状, 雄性不育细胞质, 杂交水稻, 恢复系