安徽农业科学2025，Vol.53Issue(14)：29-32,4.DOI:10.3969/j.issn.0517-6611.2025.14.005
种植密度对不同玉米品种农艺性状及产量的影响
Effects of Planting Density on Agronomic Traits and Yield of Different Maize Varieties
摘要
Abstract
[Objective]To investigate the optimal planting density and further explore its production potential.[Method]The new maize varie-ties such as Hongliang 2,Heyu 102,Heyu 106 and Heyu 108 were took as the materials,and set up six levels of planting density to study the effects on main agronomic traits,yield,and yield components.[Result]Plant height,ear height,and barren tip length generally showed an upward trend across all varieties,while ear length,ear diameter,and 100-grain weight decreasing with the increases of planting density.The yield followed a"parabolic"pattern.Specifically,the highest yields were observed in the Hongliang 2 and Heyu 108 varieties under planting density of 90 000 plants per hectare,reaching 18 289.00 and 17 593.80 kg/hm2,respectively.For the Heyu 102 variety,the highest yield was achieved at 17 867.55 kg/hm2 under planting density of 82 500 plants per hectare.The Heyu 106 variety attained its highest yield under plant-ing density of 97 500 plants per hectare,with 19 701.15 kg/hm2.[Conclusion]The best planting density of Hongliang 2 and Heyu 108 was 90 000 plants per hectare,the best planting density of Heyu 102 and Heyu 106 were 82 500 and 97 500 plants per hectare.关键词
玉米品种/种植密度/农艺性状/产量Key words
Maize varieties/Planting density/Agronomic traits/Yield分类
农业科技引用本文复制引用
关成平,王娟,李佳丽,王兴,陈晓军,丁东霞,张东昱,赵蕊,缪纯庆..种植密度对不同玉米品种农艺性状及产量的影响[J].安徽农业科学,2025,53(14):29-32,4.基金项目
甘肃省农业农村厅科技支撑项目"玉米制种节水增效单产提升技术研发与集成示范"(KJZC-2024-3) （KJZC-2024-3）
张掖市揭榜挂帅项目"制种玉米水肥一体专用改良型水溶肥料研发推广"(ZY2022JBGS03). （ZY2022JBGS03）
