论文部分内容阅读
对水稻生长发育基本规律的研究表明 ,在杂交水稻制种中 ,同一亲本幼穗开始分化时的叶龄余数和幼穗分化所经历的天数大致一定 ,主茎总叶片数也保持相对稳定 ,出叶速度随生育进程的不同而呈规律性变化 ,始穗期与 4叶以后至幼穗开始分化时的平均出叶速度密切相关。据此构建了花期早期预测公式x =v(T -t0 -ti) +A ,为花期早期预测提供了新的方法
Studies on the basic rules of rice growth and development showed that in the hybrid rice seed production, the number of days remaining after the differentiation of the same parent panicle and the number of days of spike differentiation were almost constant, and the total number of main stem leaves also remained relatively stable. The leaf speed varied regularly with the growth process. The initial leaf stage was closely related to the mean leaf outflow rate after 4 leaves to the start of panicle differentiation. Based on this, the prediction formula of early flowering period x = v (T -t0 -ti) + A was constructed, which provided a new method for early flowering prediction