种植密度对玉米生长期叶片叶绿素含量和产量的影响  

Effects of Planting Density on Leaf Chlorophyll Content and Yield of Maize

作　　者：鹿红卫 王昌亮 卢瑞乾 李建军 李保峰 吴勇 章慧玉 苏玉杰 

机构地区：[1]鹤壁市农业科学院,河南鹤壁458031

出　　处：《安徽农业科学》2013年第35期13503-13505,共3页Journal of Anhui Agricultural Sciences

摘　　要：为研究种植密度与玉米叶片叶绿素含量的相关性及叶绿素含量与玉米产量的关系,选取3个夏玉米品种浚单29、浚单509、浚单3136作为参试品种,通过设置5.25万～9.00万株/hm2 6个种植密度,研究玉米叶片叶绿素含量和产量与种植密度的关系.结果表明：随着种植密度的增加玉米单株叶片叶绿素含量相应减小,但减幅较小;随着种植密度的增加玉米产量呈先增后减的趋势,3个参试品种的最适种植密度分别为6.75万～ 7.50万株/hm2、6.25万～6.75万株/hm2、7.50万～8.25万株/hm2;玉米叶绿素含量随种植密度的变化对玉米产量的影响还不够明显,有待于进一步研究.To study the correlation beiween planing density of maize and leaf chlorophyll content as well as that between leaf chlorophyll con- tent and maize yield, 3 summer maize varieties, Xundan 29, Xundan 509 and Xundan 3136 were taken as the test materials, by setting 6 planting densities, 52 500 - 90 000 plants/hm：. The results showed that leaf chlorophyll content reduced slightly with the increasing planting density; maize yield increased first and then decreased with the increasing density; the optimal planting density of 3 test varieties （67 500 - 75 000 plants/hm2, 62 500 - 67 500 plants/hm2, 75 000 - 82 500 plants/hm2 ） ; changes of leaf chlorophyll content with the changing density showed no obvious influence on the yield.

关 键 词：玉米 种植密度 叶绿素含量 产量 

分 类 号：S513[农业科学—作物学]