广西科学院学报2016，Vol.32Issue(1)：21-25,5.
广西道地药材战骨的光合特性研究
Study on Photosynthetic Characteristics of Premna fulva Craib
摘要
Abstract
Objective]To investigate the photosynthetic characteristics of Premna fulva Craib, and provide a theoretical basis for the high yield cultivation management.[Methods]The net photosynthetic rate to light intensity response curves and diurnal variation of photosynthesis in the leaves of P .fulva were measured by Li-6400 portable photosynthesis measuring sys-tem.[Results]The maximal net photosynthesis rate of P .fulva was 17.07 μmol·m-2 ·s-1 . The apparent quantum yield was 0.0471 μmol · m-2 · s-1 .The dark respiration rate was 0·620 μmol· m-2 · s-1 .The light saturation point was 1364 μmol · m-2 · s-1 .The light compensation point of photosynthesis was 13.14 μmol·m-2 ·s-1 .Diurnal variation in net photosynthetic rate (P n )of P .fulva was two-peak pattern,and the main cause for the decline of photosynthetic rate was the non stomatal limitation.Partial correlation analysis showed that,the P n of P .fulva were significantly related to photosynthetically active radiation,stomatal conductance,transpiration rate and leaf tempera-ture.[Conclusion]P .fulva was a shrub shared similar photosynthetic characteristics with sun plants,which is suitable to plant in sunny habi-tats.关键词
战骨/光响应曲线/光合日变化/偏相关分析Key words
Premna fulva Craib/light response curve/diurnal variation of photosynthesis/partial correlation analysis分类
医药卫生引用本文复制引用
史艳财,唐健民,王满莲,韦记青..广西道地药材战骨的光合特性研究[J].广西科学院学报,2016,32(1):21-25,5.基金项目
广西科学研究与技术开发计划项目(桂科重1298001-2-5),广西植物研究所基本业务费项目(桂植业12011)和桂林市科技攻关项目(20130414)资助。 （桂科重1298001-2-5）
