| 棉花冠层结构及光合作用研究 |
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| 引用本文： | 裴炎,邱晓,刘明钊.棉花冠层结构及光合作用研究[J].作物学报,1988,14(3):214-220. |
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| 作者姓名： | 裴炎 邱晓 刘明钊 |
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| 作者单位： | 西南农业大学农学系 |
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| 摘 要： | 研究了9个陆地棉品种(品系)的冠层结构和不同层次叶片的光合速率。试验结果表明:适度地增大上层主茎节距、降低角度指数和上层叶片所占比例,有助于冠层消光系数的减小和透光条件的改善,上层叶和中下层叶的光合特性有所不同,在弱光下后者的光合速率比前者高,在强光下比前者低。作者对适合于四川棉区生态条件的合理株型结构提出
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| 关 键 词： | 棉花 冠层 光合作用 |
| 收稿时间： | 1988-02-12 |
| 修稿时间： | 1988-08-24 |
STUDY ON THE STRUCTURE AND PHOTOSYNTHESIS OF COTTON CANOPY |
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| Pei Yan Qiu Xiao Liu Mingzhao.STUDY ON THE STRUCTURE AND PHOTOSYNTHESIS OF COTTON CANOPY[J].Acta Agronomica Sinica,1988,14(3):214-220. |
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| Authors: | Pei Yan Qiu Xiao Liu Mingzhao |
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| Institution: | Department of Agronomy; Southwest Agricultural University |
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| Abstract: | The structure and the photosynthesis rate in different layers of thecanopy of nine cotton varieties(strains)were studied.The results indicated that suitable increase of the internode length of the main stem inthe upper layer and decrease of the angle index and the percentage ofthe upper leaves were conducive to reducing the extinction coefficient ofcotton canopy and improving its transmittance;the photosynthesis rateof the upper leaves of cotton was higher than that of the middle andlower layers under intense light,on the contrary,under weak light therate of the former was lower than that of the latter.An ideal plant type of cotton suitable to the ecological conditionsof cotton growing regions in Sichuan province was suggested. |
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| Keywords: | Cotton Canopy Photosynthesis |
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