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新育成的晚粳型光敏核不育系31111S,在1988年(正常气候)和1989年(异常气候)分别进行了分期播种试验。在长日照季节,每年观察了1000株以上,全部单株都为不育,且平均套袋不实率和花粉不育率分别达100%和>99.5%。植株表现稳定不育的抽穗期达30天以上。在短日照季节,自然结实率达50%以上。结果表明31111S是一个典型的光周期敏感雄性不育系。以31111S为母本与6个广亲和品种杂交配组,产量较对照增产为11.36%至69.01%,高于对照品种鄂宜105。31111S/B5580AI-15(粳爪哇)产量优势最高。
The newly developed late japonica type photo-sensitive genic male sterile line 31111S was staged sowing experiment in 1988 (normal climate) and 1989 (abnormal climate) respectively. In the long sunshine season, more than 1000 plants were observed each year, and all the plants were sterile, and the average bagging failure rate and pollen sterility rate were 100% and> 99.5% respectively. Stable plant performance of the heading date of more than 30 days of infertility. In the short sunshine season, the natural seed rate of 50% or more. The results showed that 31111S is a typical photoperiod sensitive male sterile line. The yield of 11111S was higher than that of the control (11.36% -69.01%), which was higher than that of the control cultivar E-Yi 105.31111S / B5580AI-15 (Japonica Java) with 31111S as the female parent and 6 wide compatibility varieties.