玉米新品种郧单20适宜种植密度的筛选  

Sreening of the Proper Planting Density for New Maize Variety Yundan 20

作　　者：唐余成 周刚[1,2] 吴承国[1,2] 李永学[1] 陈光勇[1] 王致云 刘志培[1] 柯磊[1] 孟鸿洲 

机构地区：[1]十堰市农业科学院,湖北十堰442000 [2]主要粮食作物产业化湖北省协同创新中心(长江大学),湖北荆州434025

出　　处：《安徽农业科学》2018年第5期31-32,39,共3页Journal of Anhui Agricultural Sciences

基　　金：湖北省教育厅科技项目;主要粮食作物产业化湖北省协同创新中心(长江大学)

摘　　要：[目的]筛选玉米新品种郧单20适宜的种植密度。[方法]研究了6种不同的种植密度下郧单20的农艺性状、综合抗性和产量表现,并分析了种植密度对果穗性状的影响。[结果]在施足底肥、合理追肥的情况下,郧单20适宜的种植密度为52 500株/hm^2,此时产量为11 675.55 kg/hm^2。[结论]该研究为郧单20高产栽培技术研究和品种大面积推广应用提供理论基础。[ Objective] To screen the proper planting density for new maize variety Yundan 20. [ Method] The agronomic characters, multi-resistance and yield of Yundan 20 were researched under six different planting densities. And the effects of planting density on ear characters were analyzed. [ Result] Under the condition of enough base fertilizer and rational topdressing, the proper planting density for Yundan 20 was 52 500 plants/hm2. Thus, the yield was 11 675. 55 kg/hm2. [ Conclusion] This research provides theoretical basis for the large-scale exten-sion and application of high-yield cultivation techniques of Yundan 20.

关 键 词：玉米 郧单20 种植密度 综合抗性 产量 

分 类 号：S513[农业科学—作物学]