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虽然杂交稻种子价格较高,但由于杂交稻用种量较少,且具有强大的增产优势,故已为广大农民普遍认识并广泛种植。目前市售的杂交稻种子质量较差,其中含有大量的空秕粒、黑粉病粒和裂颖粒(10～20%)。这样的种子不仅贮藏困难,而且在催芽和育秧的过程中,发芽率低且易导致烂种烂芽,给计划用种带来困难,很易造成秧苗不足而影响生产。直接损害了种子部门的声誉和农民的利益。因此,为确保杂交稻种子质量,除加强常规的种子精选工作外,制
Although the price of hybrid rice seeds is relatively high, hybrid rice has been generally recognized and widely planted by farmers due to its relatively small amount of hybrid rice and strong yield-increasing advantages. Currently, the quality of hybrid rice seeds on the market is poor, which contains a large amount of kelp grains, black powder grains and cracked grains (10-20%). Such seeds not only storage difficulties, but also in the process of germination and nursery, the germination rate is low and easily lead to rotten buds, planted to bring difficulties, it is easy to cause shortage of seedlings affect production. Directly undermined the reputation of the seed sector and peasants’ interests. Therefore, in order to ensure the quality of hybrid rice seeds, besides strengthening conventional seed selection work