首页 | 本学科首页   官方微博 | 高级检索  
     检索      

2个玉米优势群体穗粒性状的密度效应分析
引用本文:李玉玲,魏蒙关,李俊周,陈欢庆,张中伟,杨国虎,崔庆新,杨美丽,王启磊,周宇光.2个玉米优势群体穗粒性状的密度效应分析[J].河南农业科学,2009(7).
作者姓名:李玉玲  魏蒙关  李俊周  陈欢庆  张中伟  杨国虎  崔庆新  杨美丽  王启磊  周宇光
作者单位:河南农业大学,农学院,河南,郑州,450002
基金项目:河南省重点科技攻关项目 
摘    要:对Reid和非Reid 2个玉米优势群体在2种密度条件下6个穗粒性状的分析结果表明,各穗粒性状都是由多基因控制的复杂数量性状;高密度使除非Reid群体穗粗外的其余性状变劣,使非Reid群体的百粒重外的其余各性状的变异系数增大,高密度更有利于对性状实施表型选择,穗粒重和穗长更适宜作为穗粒性状耐密性的选择指标;Reid群体的耐密性优于非Reid群体;穗粒重同时由多个穗粒性状所决定,在利用Reid群体进行自交系选育过程中,更应注重协调各穗粒性状间的关系。

关 键 词:玉米  杂种优势群  穗粒性状  密度  相关分析

Density Effect of Ear-kernel Characters in Two Maize Heterotic Populations
LI Yu-ling,WEI Meng-guan,LI Jun-zhou,CHEN Huan-qing,ZHANG Zhong-wei,YANG Guo-hu,CUI Qing-xin,YANG Mei-li,WANG Qi-lei,ZHOU Yu-guang.Density Effect of Ear-kernel Characters in Two Maize Heterotic Populations[J].Journal of Henan Agricultural Sciences,2009(7).
Authors:LI Yu-ling  WEI Meng-guan  LI Jun-zhou  CHEN Huan-qing  ZHANG Zhong-wei  YANG Guo-hu  CUI Qing-xin  YANG Mei-li  WANG Qi-lei  ZHOU Yu-guang
Institution:LI Yu-ling,WEI Meng-guan,LI Jun-zhou,CHEN Huan-qing,ZHANG Zhong-wei,YANG Guo-hu,CUI Qing-xin,YANG Mei-li,WANG Qi-lei,ZHOU Yu-guang(Agronomy College of Henan Agricultural University,Zhengzhou 450002,China)
Abstract:Six ear-kernel characters of two heterotic maize populations were analyzed under two planting densities. The results showed that ear-kernel characters were all complex quantitative traits in heredity. High planting density deteriorated all the characters, except ear diameter, and increased the variations of all characters, except 100-grain weight for the non-Reid population. High planting density was favorable for phenotypic selection of ear-kernel characters. Ear-kernel weight and ear length were the suitable selection criterion in planting density stress. Compared to non-Reid population, Reid population was less influenced by planting density. Ear-kernel weight was determined commonly by all ear-kernel characters. Great attention should be paid on coordinating the relations among different ear-kernel characters during the inbred line development from Reid population.
Keywords:Maize  Heterotic population  Ear-kernel characters  Density  Correlation analysis
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号