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信阳地区杂交稻制种产量长期低而不稳。本文总结了1988年以来3年攻关的技术措施:提前播种使花期处于有利气候条件,增温育秧建立起高产首德结构,用对应叶龄预测花期相遇,因而取得了大别山北麓制种高产的重大突破。
Xinyang hybrid rice seed yield long-term low and unstable. This article summarizes the technical measures to tackle this problem since 1988: early sowing makes the flowering period favorable to climate, raising the temperature and raising seedlings to establish a high-yield first Germanium structure, and predicting the flowering period by the corresponding leaf age, thus obtaining the high yield of seed production in the northern foot of the Dabie Mountains A major breakthrough.