| 不同种质资源黄连净光合速率的研究 |
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| 作者姓名： | Qu XY Sun NX Li LY Zhong GY Yin FJ |
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| 作者单位： | 重庆市中药研究院;重庆市中药良种选育与评价工程技术研究中心; |
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| 基金项目： | 国家科技攻关计划(2004BA721A32); 国家中医药管理局攻关项目(2004ZX06-1); 科技部支撑计划(2007BAI40B03) |
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| 摘 要： | 目的:对黄连的光合特性进行研究,为优选黄连种质资源及黄连品种种源提供理论依据。方法:采用光合作用测定仪,分别测定黄连叶片净光合速率、蒸腾速率、气孔导度和胞间CO2浓度,并对不同生长年限、不同类型、不同产地黄连的净光合速率进行比较。结果:黄连的光饱和点大约在500μmol/(m2.s),光补偿点约为12.04μmol/m2.s,其表观光量子效率为0.011;当温度高于33℃时,蒸腾速率加快,净光合速率减弱;不同年生黄连的净光合速率差异不大,无显著性差异(P>0.05);不同类型的黄连以大叶型和纸花叶型的净光合速率最高,与其他类型相比有显著性差异(P<0.05);来源于湖北利川福宝山和重庆石柱枫木的黄连的净光合速率显著高于其他地区(P<0.05)。结论:黄连在高温强光条件下的净光合速率下降;不同种质资源的净光合速率有一定差异。
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| 关 键 词： | 黄连 净光合速率 光饱和点 光补偿点 种质资源 |
Study on the net photosynthesis rate of Coptis chinensis from different types and production places |
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| Qu XY,Sun NX,Li LY,Zhong GY,Yin FJ.Study on the net photosynthesis rate of Coptis chinensis from different types and production places[J].Jorunal of Chinese Medicinal Materials,2011,34(3):336-339. |
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| Authors: | Qu Xian-You Sun Nian-Xi Li Long-Yun Zhong Guo-Yue Yin Fu-Jun |
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| Institution: | QU Xian-you1,2,SUN Nian-xi1,LI Long-yun1,ZHONG Guo-yue1,YIN Fu-jun1,2(1.Chongqing Academy of Chinese Materia Medica,Chongqing 400065,China,2.Chongqing Engineering Research Center for Fine Variety Breeding Techniques of Chinese Materia Medica,China) |
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| Abstract: | Objective:Evaluate the photosynthesis characteristics of Coptis chinensis and provide theoretical basis for the optimization of Coptis chinensis germplasm resources and variety.Methods:The daily variation of the net photosynthetic rate,transpiration rate,stomatal conductance and intercellular CO2 density in leaf blade were determined by Photosynthesis analyzer,and the net photosynthesis rate of Coptis chinensis from different plant ages,types and production places was compared.Results:The light saturation p... |
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| Keywords: | Coptis chinensis Franch Net photosynthesis rate Light saturation point Light compensation point Germplasm resources |
| 本文献已被 CNKI PubMed 等数据库收录！ |
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