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利用光温敏核不育系8902s为基因供体，与明恢63/CPSL017F选株杂交，分离世代在四川低温长日下选败育株，在海南陵水高温短日下选可育株的循环双向选择，选育到具有一定光敏性，败育起点温度低的蜀光601s，其民交习性好，配合力较高，并具有再生稻恢复可育的特性，是两系法杂种优势利用的新材料，克服了籼型低温敏不育系的繁殖困难．
Photo-thermo-sensitive genic male sterile line 8902s was used as a gene donor to hybridize with Minghui 63 / CPSL017F. The offspring were selected from low-temperature and long-days in Sichuan and male sterile lines were selected in short days at high temperature in Lingshui, Hainan Cyclical bi-directional selection, breeding to a certain light sensitivity, abortion starting low temperature Shu Guang 601s, its good habits of civil commuting, with higher combining ability, and has the characteristics of regenerative rice restore fertility, is the use of two lines heterosis The new material overcomes the breeding difficulties of Indica genic male sterile lines.