| 三色堇花期光合生理生态特征 |
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| 引用本文： | 杜晓华,刘会超,袁少寒,贾文庆. 三色堇花期光合生理生态特征[J]. 西南林学院学报, 2011, 31(3): 7-12. DOI: 10.3969/j.issn.2095-1914.2011.03.002 |
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| 作者姓名： | 杜晓华 刘会超 袁少寒 贾文庆 |
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| 作者单位： | 河南科技学院园林学院,河南新乡,453003 |
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| 基金项目： | 河南科技学院博士启动金项目 |
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| 摘 要： | 为研究三色堇花期光合生理生态特性，以4个品种229—18、EP1、ZMY2—1、08-H2为对象，利用Li-6400便携式光合作用系统，对其花期叶片光合生理生态特征及其影响因子进行研究。结果表明：在华北地区的5月中旬，三色堇叶片净光合速率（Pn）的日变化呈双峰曲线，最高峰出现在10：00，中午时段出现“午休”现象；在导致光合“午休”的因素中，强光引起的光饱和现象及中午高温为主要原因，各生态因子间存在显著相关性；在叶片Pn影响因子中，蒸腾速率（Tr）和光合有效辐射（PAR）对其呈显著直接正效应；08-H2具有较高的光饱和点（LSP）和表观量子效率，其光合日变化中Pn,Tr和光能利用率（SUE）都显著高于其他品种，显示出花期较高的光合能力和需水特点。
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| 关 键 词： | 三色堇 净光合速率 光饱和 光能利用率 |
Physiological and Ecological Characteristics of Viola tricolor Related to Photosynthesis in Florescence Stage |
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| DU Xiao-hua,LIU Hui-chao,YUAN Shao-han,JIA Wen-qing. Physiological and Ecological Characteristics of Viola tricolor Related to Photosynthesis in Florescence Stage[J]. Journal of Southwest Forestry College, 2011, 31(3): 7-12. DOI: 10.3969/j.issn.2095-1914.2011.03.002 |
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| Authors: | DU Xiao-hua LIU Hui-chao YUAN Shao-han JIA Wen-qing |
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| Affiliation: | DU Xiao-hua,LIU Hui-chao,YUAN Shao-han,JIA Wen-qing(Faculty of Landscape Architecture,Henan Institute of Science and Technology,Xinxiang Henan 453003,China) |
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| Abstract: | Taking 4 cultivars of Viola tricolor,i.e.,229-18,EP1,ZMY2-1 and 08-H2 as study objects,the characteristics of photosynthetic physiology and ecology of the plants during florescence stage and the relevant influencing factors were studied with Li-6400 portable photosynthesis tester in north of Henan Province in May.The results showed that the diurnal variation of net photosynthesis rate of V.tricolor leaves showed two peak curves in May,the highest peak occurred at 10:00 am,indicating a 'nap' phenomenon.The l... |
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| Keywords: | Viola tricolor net photosynthesis rate light saturation point light use efficiency |
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