| 5种地被竹光合日变化特性研究 |
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| 引用本文： | 张玲,曹帮华,高健,唐全,贾波,秦永建.5种地被竹光合日变化特性研究[J].山东科学,2009,22(2):22-26. |
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| 作者姓名： | 张玲 曹帮华 高健 唐全 贾波 秦永建 |
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| 作者单位： | 1. 山东农业大学林学院,山东,泰安,271018
2. 国际竹藤网络中心,北京,100102 |
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| 基金项目： | 国家农业科技成果转化资金资助项目 |
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| 摘 要： | 以菲白竹、黄条金刚竹、鹅毛竹、铺地竹和菲黄竹5种地被竹为试材进行盆栽试验，测定其光合日变化。试验结果表明：5种地被竹净光合速率和蒸腾速率日变化均为双峰曲线，具有典型的“午休”特征。各环境因子主要通过对光合有效辐射、水压亏缺、胞间CO2浓度和叶面温度的作用而影响的净光合速率，气孔导度对光合特征参数的变化影响最大，且对净光合速率起决定性作用，是影响光合的限制因子。光合“午休”是由于气孔导度的降低，主要受气孔因素限制。
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| 关 键 词： | 地被竹 光合速率 日变化 |
Research on the Characteristics of Photosynthetic Diurnal Variations of Five Dwarf Bamboos |
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| ZHANG Ling,CAO Bang-hua,GAO Jian,TANG Quan,JIA Bo,QIN Yong-jian.Research on the Characteristics of Photosynthetic Diurnal Variations of Five Dwarf Bamboos[J].Shandong Science,2009,22(2):22-26. |
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| Authors: | ZHANG Ling CAO Bang-hua GAO Jian TANG Quan JIA Bo QIN Yong-jian |
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| Institution: | 1.Forestry College;Shandong Agricultural University;Taian 271018;China;2. International Center for Bamboo and Rattan;Beijing100102;China |
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| Abstract: | We investigated diurnal variations of photosynthesis of pot-grown dwarf bamboos.We discovered that their net photosynthetic rate and transpiration rate exhibited two peaks in the curves of diurnal changes and obvious phenomena of midday depression.Environmental factors affected net photosynthetic rate by affecting available photosynthetic radiation,water deficit,intercellular CO2 concentration and leaf temperature.Stomatic conductance affected the variations of photosynthetic characteristic parameters,which... |
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| Keywords: | dwarf bamboo photosynthesis rate diurnal variation |
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