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| 不同类型夏玉米主要性状及产量的分析 | |
| 引用本文： | 王聪玲, 龚宇, 王璞. 不同类型夏玉米主要性状及产量的分析[J]. 玉米科学, 2008, 16(2): 039-043 |
| 作者姓名： | 王聪玲 龚宇 王璞 |
| 作者单位： | 1. 农业部农业机械化技术开发推广总站,北京,100097;中国农业大学农学与生物技术学院,北京,100094 2. 唐山市气象局,河北,唐山,063000 3. 中国农业大学农学与生物技术学院,北京,100094 |
| 基金项目： | 国家“十五”科技攻关项目(2001 BA508 B02-06) |
| 摘 要： | 以4种不同类型的夏玉米品种为材料，研究了不同时期其主要性状、干物质积累和分配及产量。结果表明：4种类型夏玉米的产量存在显著差异，在不同密度下产量也表现显著差异，其中大株特大穗型玉米品种CF2187的产量最高，具有相当大的生产潜力；4种类型夏玉米的LAI发展受密度和株型影响，高密度较低密度拥有更大的LAI及持续期，大株大穗型玉米品种的叶面积持续期最长；大株大穗型玉米品种的干物质积累最多，中株中大穗型玉米品种的经济系数最大。 |
| 关 键 词： | 夏玉米；产量；叶面积指数；干物质积累与分配 |
| 文章编号： | 1005-0906(2008)02-0039-05 |
| 收稿时间： | 2007-11-15 |
| 修稿时间： | 2007-11-15 |
The Analysis of Main Characteristic and Yield of Different Types of Summer Cor |
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| WANG Cong-ling,GONG Yu,WANG Pu. The Analysis of Main Characteristic and Yield of Different Types of Summer Cor[J]. Journal of Maize Sciences, 2008, 16(2): 039-043 | |
| Authors: | WANG Cong-ling GONG Yu WANG Pu |
| Abstract: | The experiment studied the main characteristic, dry matter accumulation and distribution and yield of four types summer corn at different stages. The results showed that the yield of large plant-extra large ear type summer corn was the highest and had some extent of yield potential. The type and density had influence on the development of leaf area index(LAI), comparing with under lower density, under higher density the LAI was larger and kept longer period; dry matter accumulation of large plant-extra large ear type summer corn was most, and the economic coefficient (harvest index, HI) of middle plant-middle ear type summer corn was highest. |
| Keywords: | Summer corn Yield Leaf area index Dry matter accumulation and distribution |
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