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利用热研２号的广亲和基因与７００１Ｓ的光敏核不育基因重组，育成中粳型广亲和光敏核不育系４００８Ｓ。４００８Ｓ的２０００株不育株率１００％，５００株套袋自交结实率０．０１％，花粉败育率９９．９９％。在合肥自７月底到９月初有３０ｄ以上的稳定不育期。花时早，柱头外露率４５．９％，开花习性好，异交率高，农艺性状优良。４００８Ｓ的单株穗数、每穗总粒数、结实率一般配合力均较高。配组Ｆ１优势明显
In this study, a broad-compatible photoperiod-sensitive genic male sterile line 4008S was constructed by recombination of the broad-compatible gene of Zheyan 2 and the photoperiod-sensitive genic male sterile line 7001S. The rate of 2000 sterile lines of 4008S was 100%, the rate of selfing of 500 lines was 0.01% and the rate of pollen abortion was 99.99%. In Hefei from the end of July to early September over 30d stable sterile period. Early flowering, stigma exsertion rate of 45.9%, flowering habits, high rate of outcrossing, agronomic traits. 4008S per panicle number per panicle, seed setting rate are generally higher with the combining ability. F1 group with obvious advantages