| 不同种植密度对玉米新品种豫单998产量的影响 |
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| 引用本文： | 王同朝,马超,杜园园,张华元,卫丽.不同种植密度对玉米新品种豫单998产量的影响[J].贵州农业科学,2008,36(6). |
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| 作者姓名： | 王同朝 马超 杜园园 张华元 卫丽 |
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| 作者单位： | 河南农业大学,河南,郑州,450002;河南农业大学,河南,郑州,450002 |
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| 基金项目： | 国家"十一五"科技支撑计划项目"黄淮南部(河南)小麦玉米丰产高效基本规律与理论创新研究"
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| 摘 要： | 为给玉米新品种豫单998在生产上采用合理的种植密度提供理论依据,对不同种植密度下豫单998群体指标与产量及产量构成因素的关系进行了试验研究。结果表明:不同密度间单株叶面积,叶、茎干物质积累差异不显著;不同密度处理叶片光合速率均呈下降趋势,且呈显著差异;5 000株/667m2产量最高(786.6 kg/667m2),豫单998群体调控能力强,是耐密型玉米品种。
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| 关 键 词： | 豫单998 密度 叶面积 干物质积累 产量 |
Effects of Different Harvest Time on Yield and Output Value of Atlantic, a Potato Variety |
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| WANG Tong-chao,MA Chao,DU Yuan-yuan,ZHANG Hua-yuan,WEI Li.Effects of Different Harvest Time on Yield and Output Value of Atlantic, a Potato Variety[J].Guizhou Agricultural Sciences,2008,36(6). |
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| Authors: | WANG Tong-chao MA Chao DU Yuan-yuan ZHANG Hua-yuan WEI Li |
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| Institution: | WANG Tong-chao,MA Chao,DU Yuan-yuan,ZHANG Hua-yuan,WEI Li* |
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| Abstract: | Yudan 998,a new hybrid maize variety,was tested under different planting density to study the effects on its population index,yield and yield components for providing the theoretical basis of rational planting density in its production.The results showed that there were no significant difference in leaf area/plant and dry accumulation of leaves and stems/plant between treatments with different planting density,and the leaf photosynthesistic rate declined with increase of planting density and there was significant difference in leaf photosynthesistic rate between treatments with different planting density.The highest yield(786.6kg/667m2) was obtained when the planting density was 5000 plants/667m2,which indicates Yudan 988 is a density resistant maize variety. |
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| Keywords: | Yudan 998 density leaf area dry matter accumulation yield |
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