Application of space mutation on creation of rice new material and breeding of new variety

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 cultivar (Huaxiang 7) was bred from the cytoplasmic male sterile line 'Huaxiang A' and restorer line 'Chuanhui 907', which already passed provincinal evaluation. (authors)