极小种群植物博罗红豆的光合生理特征日变化研究  

Study on Diurnal Variation of Photosynthetic Physiological Characteristics of Ormosia boluoensis

作　　者：钟象景 郭韵[2] 刘彩琴 梁继霞 曹洪麟[2] ZHONG Xiang-jing;GUO Yun;LIU Cai-qin(Management Bureau of Guangdong Xiangtoushan National Nature Reserve,Huizhou,Guangdong 516001;South China Botanical Garden,Chinese Academy of Sciences,Guangzhou,Guangdong 510650)

机构地区：[1]广东象头山国家级自然保护区管理局,广东惠州516001 [2]中国科学院华南植物园,广东广州510650

出　　处：《安徽农业科学》2021年第12期126-128,共3页Journal of Anhui Agricultural Sciences

基　　金：2019年中央林业改革发展资金项目。

摘　　要：[目的]研究博罗红豆的光合生理特征。[方法]利用LI-6400便携式光合测定仪测定博罗红豆及其所在群落优势种的光合作用日变化。[结果]博罗红豆的光合生理日变化主要为"单峰型",净光合速率的峰值出现在10:00,达(16.48±0.30)μmol/(m^(2)·s);10:00之后净光合速率有所降低。与群落的优势种相比,博罗红豆的日均净光合速率更大,有更强的光合能力。[结论]光合作用能力不是博罗红豆种群的限制因素。[Objective]In order to understand the photosynthetic physiological characteristics of O.boluoensis.[Method]Diurnal changes of photosynthesis of O.boluoensis and its dominant species were measured by Li-6400 portable photosynthesis analyzer.[Result]The diurnal variation of photosynthetic physiology of O.boluoensis was mainly presented as‘single peak type’.The net photosynthetic rate reached the peak at 10 am,which was(16.48±0.30)μmol/(m^(2)·s).Net photosynthetic rate decreased after 10 am.Compared with the dominant species in the community,the daily average net photosynthetic rate of O.boluoensis was larger and had a stronger photosynthetic capacity.[Conclusion]Photosynthetic capacity is not a limiting factor for O.boluoensis population.

关 键 词：博罗红豆 光合作用日变化 光合能力 

分 类 号：Q948[生物学—植物学]