湖北农业科学 ›› 2021, Vol. 60 ›› Issue (23): 15-17.doi: 10.14088/j.cnki.issn0439-8114.2021.23.003

• 育种·栽培 • 上一篇    下一篇

玉米品种郧单21亲本选育及高产制种技术

周刚, 陈光勇, 杨虎, 张世洪, 唐余成, 叶青松, 徐星华, 李文品   

  1. 十堰市农业科学院,湖北 十堰 442000
  • 收稿日期:2021-03-21 出版日期:2021-12-10 发布日期:2021-12-21
  • 作者简介:周刚(1975-),男,湖北房县人,正高级农艺师,主要从事玉米种质资源创新研究、玉米新品种培育、栽培技术研究及示范推广工作,(电话)13669095692(电子信箱)syymzg@126.com。
  • 基金资助:
    湖北省农业科技创新中心项目(2016-620-000-001-063)

Parent breeding and high-yielding breeding technology of maize variety Yundan 21

ZHOU Gang, CHEN Guang-yong, YANG Hu, ZHANG Shi-hong, TANG Yu-cheng, YE Qing-song, XU Xing-hua, LI Wen-pin   

  1. Shiyan Academy of Agricultural Sciences,Shiyan 442000,Hubei,China
  • Received:2021-03-21 Online:2021-12-10 Published:2021-12-21

摘要: 郧单21是用自交系WD03作母本、自交系N75作父本组配的玉米杂交种。介绍了郧单21亲本自交系的选育过程及其特征特性,总结了亲本自交系的繁殖技术。从选择基地、科学的群体结构、播差期等方面总结了高产制种技术措施。结果表明,适宜的制种密度为75 000~90 000株/hm2,父母本行比为 1∶4,播差期为同期播种。

关键词: 郧单21, WD03, N75, 亲本选育, 高产制种技术

Abstract: Yundan 21 is a maize hybrid with inbred line WD03 as parent, inbred line N75 as parent. The breeding process and characteristics of Yundan 21 parent inbred lines were introduced, and the breeding techniques of parent inbred lines were summarized. The technical measures of high-yield seed production were summarized from the selection of base, scientific population structure and sowing time. The results showed that the suitable seed production density was 75 000~90 000 plants/hm2, the ratio of parents was 1∶4,the sowing time was the same period.

Key words: Yundan 21, WD03, N75, parent breeding, high-yield seed production technology

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