两优培九 (6 5 0 0 2 )系江苏省农科院用不育系培矮 6 4Ｓ与恢复系 931 1配组而成的一个优质、高产两系杂交水稻中籼型组合。由于父、母本对温、光反应有差异 ,特别是父本对肥、水特别敏感 ,理想花期难以掌握 ,母本对“92 0”反应钝感 ,异交结实率不高 ,导致该品种制种产量低 , Liangyoupeiju (65 002) was a high-yielding, high-yielding two-line indica hybrid rice combination derived from a combination of CMS line Pei’ai 6 4S and restorer line 931 1 in Jiangsu Academy of Agricultural Sciences. As the parent and the female have different responses to temperature and light, especially the male parent is particularly sensitive to fertilizer and water, and the ideal flowering period is difficult to grasp. The female parent is insensitive to the “92 0” reaction and the outcrossing rate is low, Seed production is low,