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在玉米的杂交制种生产过程中,影响种子产量和质量关键是去杂抽雄不及时,自交株率上升或花期不遇后期种子脱水慢,造成霉变冻害、发芽率降低等问题。因此为了提高制种的产量和质量,必须改变生产条件,制定必要的措施,及时干净彻底的做到超前抽雄、加强管理,保证及时迅速脱水,生产出纯度高质量好的优质种子。为此分析了在实际生产过程中时常出现的一些问题,同时提出了若干玉米制种的高产措施。
In the hybrid seed production process of corn, the key factors that influence the yield and quality of the seed are the problems such as the improper flowering of hybrids, the increase of the rate of self-crossing plants or the slow dehydration of seeds at the late stage of flowering, resulting in mildew frost damage and germination rate declining. Therefore, in order to improve the yield and quality of seed production, we must change the production conditions and make the necessary measures to timely and cleanly conduct the advanced tasselling and strengthen the management so as to promptly and promptly dehydrate to produce high-quality and high-quality seeds of good quality. This paper analyzes some problems that often appear in the actual production process, at the same time, puts forward a number of high-yielding measures of corn seed production.