[Objective] The purpose of the research was to introduce the breeding process,fertility performance,disease resistance and agronomic characters of photoperiod sensitive genic male sterile line Wan2306 S. [Method] With photoperiod sensitive genic male sterile line2312 S in Japonica rice as female parent,it was hybridized with 9538 from Jiangsu,the photoperiod sensitive genic male sterile line Wan 2306 S in Japonica rice was bred through selection for 8 generations in 5 years. [Result]From Jul. 27 to Aug. 31 ...