提高早熟极早熟玉米制种产量的措施

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早熟极早熟组合,其亲本均为小日期自交系,制种产量普遍比较低,一般亩产仅100余公斤。加之当地气候复杂,常有干旱、霜冻等灾害性天气出现,不仅制约了制种产量,对种子质量也有一定影响。针对这一问题,我们认真研究了实践中的教训和经验,将其总结归纳为一套完整的技术措施。 Very early maturity combination, the parents are small inbreds, seed production is generally lower, generally only 100 kilograms per mu. Coupled with the complex local climate, often drought, frost and other disastrous weather, not only restricted the seed production, the quality of the seed also have a certain impact. In response to this problem, we have carefully studied the lessons and experiences in practice and summarized them into a complete set of technical measures.
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