| 种植密度对不同玉米品种穗部性状及产量的影响 |
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| 引用本文： | 师学珍,白润娥,杨相甫,李俊磊.种植密度对不同玉米品种穗部性状及产量的影响[J].安徽农业科学,2009,37(33):16284-16285. |
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| 作者姓名： | 师学珍 白润娥 杨相甫 李俊磊 |
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| 作者单位： | 河南师范大学,河南新乡,453007;河南农业大学,河南郑州,453002 |
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| 摘 要： | ［目的］为研究一定生态条件下玉米高产的适宜种植密度。［方法］采用大田试验，以豫单998和郑单958玉米品种为对象，研究了不同种植密度对2个品种穗部性状及产量的影响。［结果］在试验密度范围内，郑单958的产量随密度的增加而增加；豫单998的产量开始随密度的增加而提高，当密度为67 500株/hm^2时，产量达最大（9 375.47 kg/hm^2），当种植密度为75 000株/hm^2时，产量反而下降。2个供试品种随着种植密度的增加，穗长、行粒数、穗粒重、千粒重均呈逐渐下降趋势；秃尖随密度的增加而增加；穗行数和穗粗无明显差异。［结论］不同玉米品种的耐密性有所差异，郑单958的适宜高产密度为75 000株/hm^2，豫单998的适宜高产种植密度为67 500株/hm^2。
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| 关 键 词： | 玉米 密度 穗部性状 产量 |
Effect of Density on Yield and Spike Characters of Different Variety Maize |
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| SHI Xue-zhen et al.Effect of Density on Yield and Spike Characters of Different Variety Maize[J].Journal of Anhui Agricultural Sciences,2009,37(33):16284-16285. |
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| Authors: | SHI Xue-zhen |
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| Institution: | SHI Xue-zhen et al(Henan Normal University,Xinxiang,Henan 453007) |
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| Abstract: | Objective] The study aimed to provide the optimal planting density for hybrid yield under certain ecological conditions.Method] The effects on spike characters and yield of maize were studied under 60 000,67 500 and 75 000 plants/hm2 by field test.Result] The yield of the hybrid of Zhengdan 958,in a certain range,could increase by increasing plant density.For the hybrid of Yudan 998,the grain yield increased first and then decreased when density increased continuously.And increased plant density led to d... |
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| Keywords: | Maize Density Spike character Yield |
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