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杂交水稻制种,常因父母本花期、花时相遇不佳而造成低产。采取一系列制种技术措施,虽能解决花期不遇的矛盾,但由于父母本开花习性上固有的差异及气候条件的种种影响,花时相遇仍不能很好得到解决,以致严重影响到制种产量的提高。近年来,有关单位在探索三十烷醇对提高杂交水稻制种产量的可能性上做了一些工作。在吸取外地经验教训的基础上,我县今年在杂交稻制种上,同时进行了三十烷醇应用的试验、示范、推广工作。现将有关试验结果综述如下。
Hybrid rice seed production, often because of the parents of the flowering, flower encounter poor and cause low yield. A series of technical measures for seed production could solve the contradiction of inflorescence but due to the inherent differences in flowering habit of parents and the various influences of climatic conditions, the time-consuming encounter still could not be solved well, which seriously affected the seed production Improve. In recent years, relevant units have made some efforts in exploring the possibility of triacontanol in increasing the yield of hybrid rice seed. On the basis of absorbing foreign experiences and lessons, this county experimented, applied and popularized the application of triacontanol at the same time this year. The relevant test results are summarized below.