湖北农业科学 ›› 2023, Vol. 62 ›› Issue (1): 6-11.doi: 10.14088/j.cnki.issn0439-8114.2023.01.002

• 育种·栽培 • 上一篇    下一篇

玉米新品种郧单25的选育、综合分析及高产栽培技术

余长平1, 周华平1, 叶青松1, 吴承国1, 肖能武1, 秦光明1, 李永学1, 王致云1, 陈强1, 刘永忠2   

  1. 1.湖北省十堰市农业科学院,湖北 十堰 442000;
    2.华中农业大学植物科学技术学院,武汉 430070
  • 收稿日期:2022-08-08 出版日期:2023-01-25 发布日期:2023-03-07
  • 通讯作者: 周华平(1964-),男,湖北天门人,研究员,主要从事农作物品种选育及栽培技术研究工作,(电子信箱)syzhhp@163.com; 并列通信作者,刘永忠(1965-),男,湖北十堰人,教授,主要从事玉米新品种选育及种质创新工作,(电子信箱)1302445159@qq.com。
  • 作者简介:余长平(1983-),男,湖北十堰人,高级农艺师,主要从事玉米育种研究及推广工作,(电话)15907284370(电子信箱)787640300@qq.com

Breeding,comprehensive analysis and high-yield cultivation techniques of new maize variety Yundan 25

YU Chang-ping1, ZHOU Hua-ping1, YE Qing-song1, WU Cheng-guo1, XIAO Neng-wu1, QIN Guang-ming1, LI Yong-xue1, WANG Zhi-yun1, CHEN Qiang1, LIU Yong-zhong2   

  1. 1. Shiyan Academy of Agricultural sciences, Shiyan 442000,Hubei,China;
    2. College of Plant Science and Technology,Huazhong Agricultural University,Wuhan 430070,China
  • Received:2022-08-08 Online:2023-01-25 Published:2023-03-07

摘要: 简要介绍了玉米(Zea mays L.)新品种郧单25的选育过程及其特征特性。依据郧单25参加湖北省2019—2020年玉米山区组品种区域试验和生产试验的表现,通过分析产量平均值、产量变异系数、丰产性效应值、高稳系数、适应性参数、产量与环境指数的回归系数等指标,对其在湖北省山区的丰产性、稳产性和适应性进行分析。结果表明,郧单25丰产性突出、稳产性好、适应性广,是适合湖北省山区及类似生态区推广种植的玉米新品种。以郧单25为试验材料,采用二因素裂区设计,设置主处理施肥量(A)与副处理种植密度(B)研究了不同施肥水平和种植密度对其产量及主要农艺性状的影响,结果表明,郧单25的最佳栽培模式为密度5.50万株/hm2、750.0 kg/hm2复合肥作底肥、337.5 kg/hm2尿素作追肥(苗肥∶穗=1∶2),平均单产最高,达15 670 kg/hm2

关键词: 玉米(Zea mays L.), 郧单25, 选育, 综合分析, 栽培技术

Abstract: The breeding process and characteristics of a new maize(Zea mays L.) variety Yundan 25 were briefly introduced. Based on the results of the regional trial and production trial of maize varieties from 2019 to 2020 in Hubei Province, the performance of productivity, stability and adaptability of Yundan 25 in the mountain area of Hubei Province were analyzed by testing the average yield, yield variation coefficient, high yield effect value, high stability coefficient,adaptability parameter,and regression coefficient of yield and environmental index. The results showed that Yundan 25 was a new maize variety with a higher yield, stronger stability,wider adaptability, and suitable for spreading planting in mountainous areas of Hubei Province and other corresponding ecological areas. In addition, the effects of different fertilizer amount(A) and planting densities(B) on yield and main agronomic traits of maize variety Yundan 25 were studied by using two-factor split plot design. The results showed that the best cultivation mode of Yundan 25 was density of 55 000 plants/hm2, 750.0 kg/hm2 compound fertilizer as base fertilizer, 337.5 kg/hm2 urea as topdressing (seedling fertilizer ∶ ear fertilizer = 1∶2), and the average yield was the highest, reaching 15 670 kg/hm2.

Key words: maize(Zea mays L.), Yundan 25, breeding, comprehensive analysis, cultivation technique

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