优质水稻光温敏核不育系272S的选育

Breeding of Fine Quality PTGMS Line 272S in Rice

采用金山S-2/金山1B∥金山1B配组杂交,通过人工气候箱、早季与高海拔低温等自然生态压力进行育性鉴定,育成不育起点温度低、不育性稳定的两系不育系272S。该不育系稳定不育期长,米质优,配合力好,于2010年8月通过福建省教育厅科技评审。

Derived from the cross of Jinshan S-2/Jinshan 1B∥Jinshan 1B,272S is a new photo-and thermo-sensitive genic male sterile（PTGMS） line in rice with low critical sterility-inducing temperature and stable male sterility,developed through years of fertility identification and selection under the stress of low temperature conditions including in phytotron,early seasons and high-elevation locations.It has a long period of stable male sterility in a year,good grain quality and high combining ability.In August,2010,it was technically identified by the Educational Department of Fujian Province.