香粳不育系双百A属中熟晚粳型,其细胞质来源Chinsurah Boro Ⅱ(BT型细胞质),已回交20代,雄性不育性稳定,开花习性好,配合力强,米质优良,已实现三系配套并开始用于大面积生产;通过用1.7%KOH溶液浸泡叶片法分析其香味遗传,结果表明:香粳不育系双百A的香味由一对隐性基因控制,即其配制7杂种F_1代植株无香味,F_2代无香味与有香味分离比例为3∶1,并证实其不育细胞质对其香味遗传无影响。 The japonica CMS line Shuangai A was a middle-maturing late japonica type. Its cytoplasm originated from Chinsurah Boro Ⅱ (BT type cytoplasm) and had backcrossing for 20 generations. It had stable male sterility, good flowering habit, strong combining ability and good quality , And has been achieved three lines and began to be used for large-scale production; by soaking leaves with 1.7% KOH solution analysis of its genetic flavor, the results show that: fragrant japonica CMS double hundred A flavor by a pair of recessive genes that The F1 hybrid plants of F1 hybrids had no fragrance, the ratio of non-scented to scented F_2 was 3:1, and its sterile cytoplasm had no effect on its genetic inheritance.