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对玉米的耐密性及选育耐密品种的探讨
引用本文:樊景胜, 阎淑琴, 马宝新, 李德新, 连永利, 刘海燕, 孙善文.对玉米的耐密性及选育耐密品种的探讨[J].玉米科学,2002,10(3):050-051.
作者姓名:樊景胜  阎淑琴  马宝新  李德新  连永利  刘海燕  孙善文
作者单位:黑龙江省农科院嫩江农科所,齐齐哈尔,富拉尔基,161041
摘    要:本文从育种角度探讨了玉米的耐密性及玉米的边际效应指数,并研究了产量边际效应指数与穗部各性状的边际效应指数之间的关系.结果认为,玉米的耐密性是重要的农艺性状,选育耐密品种已成为重要的育种目标之一.边际效应指数可以作为选择耐密品种的指标.穗长、穗粗、行粒数、百粒重、粒深、出籽率等性状的边际效应指数与产量边际效应指数呈显著正相关.穗行数的边际效应指数与产量边际效应指数相关不显著。

关 键 词:玉米  耐密性  耐密品种  边际效应指数
文章编号:1005-0906(2002)03-0050-03
收稿时间:1/5/2002 12:00:00 AM

Study on the Density-resistant Property of Maize and Breeding its Varieties
FAN Jing-sheng; YAN shu-qin; MA Bao-xin; LI De-xi; LIAN Yong-li; LIU Hai-yan; SUN Shan-wen.Study on the Density-resistant Property of Maize and Breeding its Varieties[J].Journal of Maize Sciences,2002,10(3):050-051.
Authors:FAN Jing-sheng; YAN shu-qin; MA Bao-xin; LI De-xi; LIAN Yong-li; LIU Hai-yan; SUN Shan-wen
Abstract:Density-resistant property of maize and its marginal effect index wore discussed,the relationship of marginal effect between yield and every ear character was studied.The result showed:the density-resistmat property of maize.is an important agronomic character.Breeding variety with density-resistant was one of important breeding target the marginal index may be one of breeding variety with demity-resistant target.The marginal effect index between yield and ear length,ear thick,grain number per row,weight per hundred grain,grain length,rate of grain have significant positive correlation,and the correlation of marginal effect index between yield and row number per ear is not significant.
Keywords:Maize  Density-resistant property  Density-resistant varieties  Marginal effect index
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