| 黄淮海区群体效应对夏玉米性状指标·产量的影响 |
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| 引用本文： | 陈书强,许海涛.黄淮海区群体效应对夏玉米性状指标·产量的影响[J].安徽农业科学,2011,39(26):15900-15901,15910. |
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| 作者姓名： | 陈书强 许海涛 |
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| 作者单位： | 河南省驻马店市农业科学院,河南驻马店,463000 |
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| 基金项目： | 河南省重大科技攻关项目(092102110085) |
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| 摘 要： | 目的]明确黄淮海区玉米品种的合理群体密度。方法]以郑单958夏玉米为试材,采用单因素随机区组设计,设群体密度4.5万、6.0万、7.5万和9.0万株/hm24个处理,研究不同群体密度对夏玉米株高、叶面积指数、地上干物重、产量及其构成因素的影响。结果]在4.5万~9.0万株/hm2群体密度范围内,6.0万株/hm2处理产量最高,表明适宜群体密度为6.0万株/hm2。随着群体密度的增加,叶面积指数增大,地上干物重呈现降低趋势,株高、产量呈现先增后降趋势。结论]玉米品种群体密度为6.0万株/hm2,可构建较合理的群体结构,获得较高的玉米产量。
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| 关 键 词： | 玉米 群体密度 性状指标 叶面积指数 地上干物重 产量 |
Effects of Community Density on Characters Index and Yield of Summer Maize in Huanghuai Area |
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| CHEN Shu-qiang et al.Effects of Community Density on Characters Index and Yield of Summer Maize in Huanghuai Area[J].Journal of Anhui Agricultural Sciences,2011,39(26):15900-15901,15910. |
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| Authors: | CHEN Shu-qiang |
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| Institution: | CHEN Shu-qiang et al(Zhumadian Academy of Agricultral Science,Zhumadian,Henan 463000) |
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| Abstract: | Objective] The research aimed to study the reasonable community density of maize variety in Huanghuai area.Method] The method of single factor randomized block experiment was used to study the influence of different community density on plant height,leaf area index,dry matter weight overground parts,yield and yield components of summer maize Zhengdan 958 genotype by adopting 4 different density ranging from 45 000-90 000 plants per hektare.Result]In the design 45 000-90 000 plants per hectare community d... |
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| Keywords: | Maize Community density Characters index Leaf area index Dry matter weight of overground parts Yield |
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