| 葡萄叶片光合速率日间降低内外因调控的研究 |
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| 引用本文： | 黄丛林,张大鹏.葡萄叶片光合速率日间降低内外因调控的研究[J].园艺学报,1996,23(2):128-132. |
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| 作者姓名： | 黄丛林 张大鹏 |
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| 作者单位： | 中国农业大学植物科技学院 北京100094
(黄丛林)，中国农业大学植物科技学院 北京100094(张大鹏) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 土壤水分充足时,葡萄日间光合速率的下降主要归因于CO2叶肉阻力的升高;光照、叶温和大气湿度可以影响气孔对CO2的阻力,但主要通过影响叶肉阻力来影响光合速率。‘巨峰’和‘长相思’葡萄具有不同的光合作用光响应曲线及其特征参数。
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| 关 键 词： | 葡萄 光合速率日变化 内外因素 叶肉阻力 |
Studies on Physiological and Environmental Factors Inducing Diurnal Photosynthetic Depression in Grapevine Leaves |
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| Huang Conglin and Zhang Dapeng.Studies on Physiological and Environmental Factors Inducing Diurnal Photosynthetic Depression in Grapevine Leaves[J].Acta Horticulturae Sinica,1996,23(2):128-132. |
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| Authors: | Huang Conglin and Zhang Dapeng |
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| Abstract: | The experiment was carried out with potted Kyoho and Sauvignon blanc grapevines under natural conditions with sufficient soil water supply. The diurnal depressions of photosynthetic rate of grapevine leaves were considered according to the results to be mainly caused by increase of mesophyll resistance to CO2 in most parts of a day. The influences of PAR photon flux density, leaf temperature and relative humidity of air on photosynthesis of grapevine leaves could be mainly due to non-stomatal regulation. The characteristic parametres of photosynthetic light response in leaves of the two grapevine cultivars were analysed. |
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| Keywords: | Grapevine Diurnal changes in photosynthetic rate Physiological and environmental factors Mesophyll resistance |
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