| 江苏省不同播期组普通玉米育种性状分析 |
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| 引用本文： | 孟庆长,陈艳萍,袁建华,管晓春.江苏省不同播期组普通玉米育种性状分析[J].江苏农业学报,2008,24(4). |
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| 作者姓名： | 孟庆长 陈艳萍 袁建华 管晓春 |
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| 作者单位： | 1. 江苏省农业科学院粮食作物研究所,江苏,南京,210014
2. 江苏省种子管理站,江苏,南京,210013 |
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| 基金项目： | 江苏省农业科技自主创新资金项目，国家科技支撑计划，江苏省科技厅科技计划 |
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| 摘 要： | 研究了2000～2007年江苏省春播、夏播普通玉米区域试验参试组合的农艺性状与产量的关系,结果表明不同播期组玉米的农艺性状对产量的影响不同.相关分析结果表明,春播玉米产量与穗长、每行粒数和出籽率呈显著或极显著正相关,而与秃顶长度呈极显著负相关;夏播玉米产量与株高、穗位高度、穗长、行粒数和千粒重呈显著或极显著正相关,而与秃顶长度也呈极显著负相关.对产量的通径分析结果表明,春播组玉米的穗长、穗粗、秃顶长度、行粒数和千粒重的回归系数与0差异显著或极显著;夏播组玉米的株高、秃顶长度、穗行数、行粒数和千粒重的回归系数与0差异显著或极显著.在选育自交系和配制杂交组合时要特别注意行粒数的正选择和秃顶长度的负选择.
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| 关 键 词： | 普通玉米 农艺性状 产量 通径分析 |
Analysis of Breeding Traits of Maize Sowed in Spring and Summer in Jiangsu Province |
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| MENG Qing-chang,CHEN Yan-ping,YUAN Jian-hua,GUAN Xiao-chun.Analysis of Breeding Traits of Maize Sowed in Spring and Summer in Jiangsu Province[J].Jiangsu Journal of Agricultural Sciences,2008,24(4). |
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| Authors: | MENG Qing-chang CHEN Yan-ping YUAN Jian-hua GUAN Xiao-chun |
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| Institution: | MENG Qing-chang1,CHEN Yan-ping1,YUAN Jian-hua1,GUAN Xiao-chun2(1.Institute of Food Crops,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China,2.Seed Management Station of Jiangsu Province,Nanjing 210013,China) |
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| Abstract: | The relationship between agronomic trait and yield of maize sowed in spring or summer in Jiangsu Province in 2005-2007 was analyzed.The yield of spring-sowed maize positively correlated with ear length,grains per row and kernel production rate,but negatively correlated with bald length.For summer-sowed maize,its yield positively correlated with plant height,ear height,ear length,grains per row and 1 000-grain weight,negatively correlated with bald length.Path analysis suggested that ear length,ear width,bal... |
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| Keywords: | maize agronomic trait yield path analysis |
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