| 小麦/玉米复合群体光合特性与作物生产力间的相关性 |
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| 引用本文： | 黄鹏,柴强,黄高宝.小麦/玉米复合群体光合特性与作物生产力间的相关性[J].甘肃农业大学学报,2000,35(1):70-74. |
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| 作者姓名： | 黄鹏 柴强 黄高宝 |
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| 作者单位： | 甘肃农业大学农学系,兰州,730070 |
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| 基金项目： | 甘肃省中青年科技基金!ZQ－96－20 |
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| 摘 要： | 高水肥集约栽培条件下，小麦／玉米复合群体的光合特性及作物生产力主要决定于作物本身的生理特性，而与诸生态因子间的相关性不显著。小麦组分的 Ｐｎ（光合速率）与 ＣＧＲ（作物牛产率）呈显著的正相关，而玉米组分的经济产量与抽雄期到灌浆期的Ｐｎ呈显著正相关。因此生产中可通过培育高光效品种或高水分利用效率的品种来实现作物的高产。
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| 关 键 词： | 小麦/玉米 光合特性 生产力 生态生理 |
| 文章编号： | 1003-4315(2000)01-0070-05 |
Relationships between photosynthetic characteristics and productivity of wheat/corn multiple canopy |
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| HUANG Peng,CHAI Qiang,HUANG Gao-bao.Relationships between photosynthetic characteristics and productivity of wheat/corn multiple canopy[J].Journal of Gansu Agricultural University,2000,35(1):70-74. |
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| Authors: | HUANG Peng CHAI Qiang HUANG Gao-bao |
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| Abstract: | Under the intensive culture conditions, the photosynthetic curves of each component of the wheat/corn multiple canopies are mono-peaked. Compared all the ecological and physiological factors which affect the characteristics of intercropping canopies, it showed that the ecological effect to the photosynthesis is indirect, and P_n is determined by TR and SR. The study also showed that through culturing varieties which have high photosynthesis and high water utilization characters is the suitable way to get high yield. The phase from the elongation stage to the filling stage is the most important period that determined the yield of corn. Intensify the corn filling stage management and the maneuver should be looked as the scientific practice to get total yield of wheat corn intercropping multiple canopy. |
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| Keywords: | wheat/corn crop productivity photosynthesis eco-physiology |
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