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Position: Home > Articles > Photosynthetic Characteristics of Ornamental Medicinal Plant-Millettia dielsiana Harms Hunan Agricultural Sciences 2010 (3) 37-39

观赏药用植物香花崖豆藤光合特性研究

作  者:
黄艳宁;曾维爱;彭尽晖;彭福元;朱校奇
单  位:
湖南省烟草公司郴州市公司;湖南省农业科学院农业生物资源研究所;湖南农业大学园艺园林学院
关键词:
香花崖豆藤;净光合速率;光合有效辐射;胞间CO2浓度
摘  要:
采用LI-6400便携式光合作用测定仪系统研究药用、观赏树种香花崖豆藤的光合特性,结果表明:香花崖豆藤是一种喜光植物,其叶片的光补偿点为25μmol/m2.s,光饱和点为2 000μmol/m2.s;相关分析表明净光合速率与饱与蒸汽压差、叶室气温、叶片温度及光照强度均成显著正相关,与胞间CO2浓度成负相关;主成分分析表明,光照、叶片温度、蒸腾是光合作用的主要因子;逐步线形回归表明,净光合速率主要受到叶室气温的影响。
译  名:
Photosynthetic Characteristics of Ornamental Medicinal Plant-Millettia dielsiana Harms
作  者:
HUANG Yan-ning1,ZENG Wei-ai2,PENG Jin-hui3,PENG Fu-yuan1,ZHU Xiao-qi1(1.Institute of Agricultural Biological Resources,Hunan Academy of Agricultural Sciences,Changsha 410125,PRC;2.Chenzhou Branch of Hunan Tobacco Company,Chenzhou 423000,PRC;3.College of Horticulture and Landscape,HNAU,Changsha 410128,PRC)
关键词:
Millettia dielsiana Harms;net photosynthetic rate;photosynthetically active radiation;inter-cellular CO2 concentration
摘  要:
Using LI-6 400 portable photosynthetic system to study the photosynthetic characteristics of ornamental medicinal plant-Millettia dielsiana Harms.The results revealed that Millettia dielsiana Harms is a kind of heliophile,whose light compensation point is about 25 μmol/m2.s,light saturation point is around 2 000 μmol/m2.s.The results of correlation analysis showed that there were significant positive correlations between net photosynthetic rate and saturated Vapor pressure difference(sVpdl),air temperature(Tair),leaf temperature(Tleaf),photosynthetically active radiation(Par),and there was a negative correlation between net photosynthetic and inter-cellular CO2 concentration.The results of principle component analysis showed that the first principle components of Millettia dielsiana Harms were light,Tleaf,transpiration rate(Trmmol).The results of stepwise linear regression indicated that net photosynthetic rate of Millettia dielsiana Harms was mainly affected by Tair.

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