对水稻B0 6S、PA6 4S、110 3S、武金 2A、武金 3A、金 2 3A、Ⅱ 32A、K17A、V2 0A、优ⅠA、IR5 80 2 5A和博A等 12个不育系及 9311、桂 99、N12 0、974、N12 4、R12 1、R12 2、6 47、E32、2 0 7、珞恢 988等11个恢复系的叶片生长动态进行观察研究 ,结果表明 ,不育系和恢复系出叶速度存在较明显的差异 ,不育系的出叶速度大致规律为快慢模式 ,出叶高峰在 5叶左右 ,而恢复系出叶速度大致规律为慢快慢模式 ,出叶速度高峰在 9叶左右。叶片数及生长动态分析将能用来指导制种实践 A total of 12 CMS lines including rice B0 6S, PA6 4S, 110 3S, Wujin 2A, Wujin 3A, gold 2 3A, Ⅱ 32A, K17A, V2 0A, You ⅠA, IR5 80 2 5A and BoA, 99, N12 0, 974, N12 4, R12 1, R12 2,6 47, E32,2 0 7, Luohui 988 and other 11 restorer lines were observed and studied. The results showed that the male sterile line and restorer line There was a significant difference in leaf speed, the general rule of the leaf-out speed of CMS was speed-slow mode, the peak of leaf outflow was about 5 leaves, while the speed of leaf rest speed was slow and slow, about. Leaf number and growth dynamics analysis will be used to guide seed production practices