航天诱变创制带标记水稻新材料及新品种选育上的应用

APPLICATION OF SPACE MUTATION ON CREATION OF RICE NEW MATERIAL AND BREEDING OF NEW VARIETY

通过航天诱变获得一个壳色带标记的香型水稻新材料,利用常规育种方法将该材料直接转化为不育系"花香A",该不育系在可恢性、不育性、异交习性等方面均达到三系不育系的标准,11项指标达国家3级米以上标准。将"花香A"与恢复系"川恢907"配组,培育出的水稻新品种"花香7号"已通过省级审定。

One rice material with quasi-aromatic and special color-glumes has been selected through space mutation. A new cytoplasmic male sterile line was transferred from the special rice material. The abortive fertility of sterility is stable, its restoring and combining ability is well. The rice quality of Huaxiang A reaches the third grade rice high-quality standard. A new high yielding hybrid rice cuhivar （Huaxiang 7） was bred from the cytoplasmic male sterile line ＂Huaxiang A＂ and restorer line ＇＂Chuanhui 907 ＂, which already passed provincinal evaluation.