| 不同类型夏玉米生产力和主要生理指标的研究 |
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| 引用本文： | 刘文成,王玉玲,马瑞霞.不同类型夏玉米生产力和主要生理指标的研究[J].河南农业科学,2003(3):10-13. |
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| 作者姓名： | 刘文成 王玉玲 马瑞霞 |
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| 作者单位： | 1. 安阳大学农学系,河南,安阳,455000
2. 商丘师范学院 |
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| 摘 要： | 采用裂区设计,研究了在高肥水条件下紧凑型玉米品种(郑单958)和松散型玉米品种(豫玉25号)的产量和主要生理指标随密度变化的规律。结果表明。紧凑型玉米品种的产量极显著地高于松散型玉米品种;密度对产量的影响和品种与密度互作均达极显著水平。郑单958在90 000株/hm2时产量最高,豫玉25号在45 000株/hm2时产量最高。在最高产量时,紧凑型玉米品种与松散型玉米品种相比具有叶面积系数大,干物质积累数量大,经济系数高等特点。
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| 关 键 词： | 夏玉米 密度 紧凑型 松散型 |
| 修稿时间： | 2002年11月18 |
Studies on Productivity and Main Physiological Index of Differential Types of Summer Corns |
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| LIU Wen-cheng,WANG Yu-ling,MA Rui-xia.Studies on Productivity and Main Physiological Index of Differential Types of Summer Corns[J].Journal of Henan Agricultural Sciences,2003(3):10-13. |
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| Authors: | LIU Wen-cheng WANG Yu-ling MA Rui-xia |
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| Abstract: | The relations between densities of crop and yield or main physiological index of different types of corn variety were studied by using the split plot design under condition of enough fertilizer and water. The yield of compact type corn variety Zhengdan 958 was much higher than loosely type corn variety Yuyu 25. The influences density on yield of interaction between density and variety reached significant level. When Zhengdan 958 and Yuyu 25 had density of 90 000 plants/ha and 45 000 plants/ha resp, they got highest yield. At same time, the leaf area coefficient, dry matter accoumulation and economic coefficient of compact type corn variety is bigger than loosely type corn variety. |
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| Keywords: | Summer corn Density Compact type Loosely type |
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