山东农业科学2017，Vol.49Issue(2)：36-39,4.DOI:10.14083/j.issn.1001-4942.2017.02.007
不同种植密度对玉米叶面积指数、干物质积累及产量的影响
Effects of Different Planting Densities on Leaf Area Index, Dry Matter Accumulation and Yield of Maize
摘要
Abstract
The new maize hybrid Nuoda 1 was studied under different planting densities to investigate their effects on yield,leaf area index (LAI) and dry matter accumulation.The results showed that the yield of maize significantly increased with the increase of planting density in the range of 60 000 ～ 82 500 plants/hm2,while it gradually decreased with the increase of planting density beyond a certain value.The yield presented a conical relationship with planting density.The LAI increased with the increase of planting density,and reached the peak at the filling stage and then began to reduce.The dynamics of maize dry matter accumulation of single plant and population both showed "S" curve.The dry matter accumulation of single plant decreased with the increase of planting density,while that of population increased with the increase of planting density within limits.The dry matter accumulation of population no longer increased when the planting density was more than 82 500 plants/hm2.关键词
玉米/诺达1号/种植密度/叶面积指数/干物质积累/产量Key words
Maize/Nuoda 1/Planting density/LAI/Dry matter accumulation/Yield分类
农业科技引用本文复制引用
刘春晓,陈凯,董瑞,张秀芝,刘铁山,何春梅,汪黎明,高新学,刘玉敬,刘强..不同种植密度对玉米叶面积指数、干物质积累及产量的影响[J].山东农业科学,2017,49(2):36-39,4.基金项目
国家农业科技成果转化资金项目 （）
山东省农业科学院青年科研基金项目(2015YQN03) （2015YQN03）
山东省科技重大专项(2015ZDJS03001) （2015ZDJS03001）
山东省现代农业产业技术体系玉米创新团队项目(SDAIT-02-07) （SDAIT-02-07）
