辽宁农业科学Issue(3)：1-5,5.DOI:10.3969/j.issn.1002-1728.2015.03.001
密度对玉米干物质积累、光合特性和产量的影响
Effects of Plant Density on Drymatter Accumulation,Photosynthetic Characters and Yield in Maize
摘要
Abstract
Used Liaodan 565 as the experimental material,effects of plant density on dry matter accumula-tion,photosynthetic characters and yield in maize were studied.The results indicated thatwith the density in-creased,ground and underground parts of dry matter were both to decline,LAI fell after rose,which was the largest in 82 500 plants /hm2 ,Pn and SPAD tended to decrease.Results of yield data showed that the optimal density of Liaodan565 was 82 500 plants /hm2 ,and the max yield was 14 364.0 kg /hm2 .There was a positive correlation between the yield and ear length,ear diameter,grains per spike,grain ear weight,100-seeds weight,seed yield percentage.There was a negative correlation between the yield and bare top length.关键词
玉米/密度/干物质积累/光合特性/产量Key words
Maize/Density/Dry matter accumulation/Photosynthetic characteristics/Yield分类
农业科技引用本文复制引用
史磊,王延波,李明,徐亮,赵海岩..密度对玉米干物质积累、光合特性和产量的影响[J].辽宁农业科学,2015,(3):1-5,5.基金项目
国家玉米产业技术体系（nycytx-02）；国家科技支撑计划 （）
