江西农业学报2017，Vol.29Issue(9)：19-21,3.DOI:10.19386/j.cnki.jxnyxb.2017.09.05
种植密度对夏玉米光合性能、农艺性状和产量的影响研究
Effects of Planting Density on Photosynthetic Performance, Agronomic Characters and Yield of Summer Maize
摘要
Abstract
The effects of different planting densities (60000, 67500, 75000 and 90000 plant/hm2) on the photosynthetic performance, agronomic characters and yield of three summer maize varieties were studied.The results showed that: within the scope of tested planting densities, along with the increase in planting density, the ear length, grain number per ear, 100-grain weight, and ear weight of maize all decreased, while the leaf area index and population photosynthetic capacity increased.Hengyu 321 and Zhengdan 958 had a big density-tolerant coefficient, and their yield greatly increased with the increase in planting density.Xianyu 335 had a small density-tolerant coefficient, and its yield increase was small when the planting density increased, so this variety is suitable for relatively thin planting.关键词
玉米/种植密度/光合性能/农艺性状/产量Key words
Maize/Planting density/Photosynthetic performance/Agronomic character/Yield分类
农业科技引用本文复制引用
卜俊周,岳海旺,彭海成,陈淑萍,魏建伟,谢俊良..种植密度对夏玉米光合性能、农艺性状和产量的影响研究[J].江西农业学报,2017,29(9):19-21,3.基金项目
国家玉米产业技术体系项目(nycytx-02) （nycytx-02）
河北省科技厅科技计划项目(16226323D-X). （16226323D-X）
