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后季稻能否安全齐穗,直接关系到稳产高产,发展双三制的问题.今年早稻成熟推迟了3—5天,后季稻育秧期间气温较常年偏低1℃以上,因此特别要注意防止翘穗.现将近两年关于后季稻安全齐穗问题的研究结果,作如下简要介绍,以供生产上参考.一、后季稻不同品种的安全齐穗期后季稻品种不同,各品种的耐寒力也有显著差别,其安全齐穗期的指标也不相同.
It is directly related to the problem of stable and high yield and development of “double-three system” since the post-season rice can be safely harvested.This year, the maturity of early-rice will be postponed for 3-5 days and the temperature during late-season rice growing will be 1 ℃ or more lower than that of normal years, so pay special attention To prevent Qiao Sui.About the past two years on the safety of late rice hybrid rice research results for the following brief introduction for the production of reference.After the different varieties of hybrid rice after the full heading season of different varieties of rice, Cold tolerance of varieties also have significant differences, its indicators of safe heading date are not the same.