| 西南玉米区主推品种耐密性比较研究 |
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| 引用本文： | 彭明,;汤彬,;陈志辉.西南玉米区主推品种耐密性比较研究[J].湖南农业科学,2014(6):21-23. |
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| 作者姓名： | 彭明 ;汤彬 ;陈志辉 |
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| 作者单位： | [1]湘西自治州农业科学院,吉首416000; [2]湖南省作物研究所,长沙410125 |
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| 基金项目： | 国家产业体系项目（CARS-02）; 国家科技支撑计划项目（2012BA D20B05-01-02） |
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| 摘 要： | 采用裂区试验,以密度和品种为试验因子,研究了11个西南玉米区主推玉米品种产量和主要农艺性状,比较不同品种的耐密性。结果表明：（1）密度间、品种间、密度与品种互作差异均达极显著水平;（2）参试品种在高种植密度（6.45万株/hm2）下的平均产量显著高于其在低种植密度（4.95万株/hm2）下的产量,增产10.37%;（3）依据各品种的增密后的表现将品种分为高产增密增产型、高产增密不增产型、低产增密增产型、低产增密不增产型4个类型。
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| 关 键 词： | 杂交玉米 裂区试验 产量 农艺性状 |
Comparative Study on Density Tolerance of Main Varieties in Southwest Maize Zone |
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| Institution: | PENG Ming, TANG Bin, CHEN Zhi-hui (1. Xiangxi Autonomous Prefecture Academy of Agricultural Sciences, Jishou 416000, China; |
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| Abstract: | A split-plot trial was conducted to evaluate the yield,main agronomic characters and density tolerance among 11 maize varieties in southwest maize zone,using the density and variety as experimental factors.The results showed that：（1） there were no significant differences among density,variety and the intersection of density and variety;（2） The tested varieties under high planting density（64500 plant /hm2） were significantly higher than that under low-density（49500 plant /hm2）,increased 10.37%;（3） Four types were selected as the performance of all varieties under high planting density,such as high yield increase with high density,high yield but not increase with high density,low yield increase with high density,low yield but not increase with high density. |
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| Keywords: | Hybrid maize split plot experiment yield agronomic traits |
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