玉米不同产量水平下农艺性状分析  

Analysis of Maize Ear Trait under Different Yield

作　　者：陈润玲 赵保献 雷晓兵 韩卫红 郑和平 梁晓伟 王向阳 

机构地区：[1]河南省洛阳市农业科学研究所,河南洛阳471022 [2]河南省温县农业科学研究所

出　　处：《安徽农业科学》2004年第2期207-208,210,共3页Journal of Anhui Agricultural Sciences

基　　金："九五"国家科技攻关项目 (96 - 0 0 2 - 0 3)

摘　　要：对河南省 1988～ 2 0 0 0年早熟组夏玉米区试中不同产量水平下玉米杂交种主要农艺性状变化 ,以及对 72 15kg/hm2 以上产量水平进行相关及通径分析 ,结果表明 :选育 75 2 0kg/hm2 以下玉米杂交种时 ,必须重视千粒重、穗长和行粒数的选择 ;选育 75 2 0kg/hm2 以上玉米杂交种时 ,应在稳定提高穗粗和穗行数基础上 ,主攻千粒重、穗长和行粒数 ,同时注意生育期和株高要适中 ,把杂交种的各农艺性状协调到最佳程度 。Yield and trait of 187 summer maize hybrids, which data were from the regional trial in Henan province of recent 13 years,were analyzed by correlation and path method, The weight of thousand grains, ear length and number of grain per row should be selected as main yield component. We should stabilize and improve their ear thickness and ear diameter, but the most important character was the weight of thousand grains, ear length and number of grain per row. The growth period and plant height were also be considered.

关 键 词：玉米 区域试验 产量 农艺性状 通径分析 

分 类 号：S513[农业科学—作物学]