杂交水稻制种田父母本花期预测的方法很多，但各有弊端。我们观察发现根据父母本“对应叶龄”法预测和调节花期，既可准确地进行早期预测和幼穗分化期的后期预测，又有利于制种人员广泛采用。１制种父母本品种的主茎总叶片数目前湖南省溆浦县大面积生产上应用的父母本品种... There are many ways to predict the flowering date of parents in hybrid rice farming, but each has its own drawbacks. Our observation shows that forecasting and regulating flowering based on the “corresponding leaf age” method of parental parents can not only accurately predict the early prediction and the late prediction of young panicle differentiation, but also facilitate the widespread adoption of seed producers. 1 species of parents of the main varieties of the total number of leaves the main blade Xupu County, Hunan Province, the large-scale production of the parents of this species ...