遮光对刺五加生长以及光合生理参数的影响  

Effect of Shading on Growth and Photosynthetic Physiological Parameters of Acanthopanax senticosus

作　　者：徐明远 王谦博[3] 郭盛磊[2] 唐中华[4] 倪红伟[1] 李凤霞 刘佳 王振月[2] XU Ming-yuan;WANG Qian-bo;GUO Sheng-lei;TANG Zhong-hua;NI Hong-wei;LI Feng-xia;LIU Jia;WANG Zhen-yue(Heilongjiang Academy of Forestry,Harbin 150081,China;Heilongjiang University of Chinese Medicine,Harbin 150040,China;The First Affiliated Hospital/School of Clinical Medicine of Guangdong Pharmaceutical University,Guangzhou 510000,China;College of Chemistry,Chemical Engineering and Resource Utilization,Northeast Forestry University,Harbin 150040,China)

机构地区：[1]黑龙江省林业科学院,哈尔滨150081 [2]黑龙江中医药大学,哈尔滨150040 [3]广东药科大学附属第一医院,广州510000 [4]东北林业大学化学化工与资源利用学院,哈尔滨150040

出　　处：《中国实验方剂学杂志》2020年第20期140-145,共6页Chinese Journal of Experimental Traditional Medical Formulae

基　　金：国家重点研发计划项目(2016YFC0500303);黑龙江省国家科技重大专项和重点研发项目(GX17C006);黑龙江省中医药管理局重点项目(2018-009);国家科技基础资源调查专项(2019FY100500)。

摘　　要：目的:研究遮光条件对刺五加生长及光合生理参数的共同影响,可为规范化种植和合理开发利用刺五加提供理论依据。方法:该研究使用三年生刺五加为实验样本,通过测定株高、叶片数、叶面积等生长参数以及光合生理参数,研究不同遮光条件对刺五加生长及光合作用的影响规律。结果:株高、叶片数及叶面积在遮光处理条件下显著均高于对照组,在中度遮光条件下最高。净光合速率、气孔导度、蒸腾速率在中度遮光组中显著高于对照组,在重度遮光组有所降低,而胞间二氧化碳浓度则在中度遮光组中显著低于其他处理组。随着处理时间的进行,初始荧光在中度遮光组中与对照组无显著性,而在重度遮光组中显著升高;最大荧光在遮光处理组显著高于对照组,在中度遮光组中最高;潜在光化学效率和最大光化学效率则在中度遮光组与对照组无显著性差异,在重度遮光组中不断下降,显著低于其他处理组。结论:遮光处理有利于刺五加的生长,中度遮光条件可显著提高刺五加的光合作用,重度遮光处理可显著抑制刺五加叶片光合作用,这种作用与其调节气孔调节有关,也与光反应中心的活性相关。Objective: To study the effect of different shading conditions on the growth and photosynthetic physiological parameters of Acanthopanax senticosus,and provide a theoretical basis for standardized planting and rational development and utilization of A. senticosus. Method: Three-year-old A.senticosus was used as the experimental sample. The growth parameters and photosynthetic physiological parameters of plant height,leaf number and leaf area were determined to study the effects of different shading conditions on the growth and photosynthesis of A. senticosus. Result: Plant height,leaf number,and leaf area were significantly higher in the shading treatment than in the control group,and highest under moderate shading conditions. The net photosynthetic rate,stomatal conductance,and transpiration rate were significantly higher in the moderate shading group than in the control group,and decreased in the severe shading group,while the intercellular carbon dioxide concentration was significantly lower in the moderate shading group than in the other treatment groups. As the treatment time progressed,the initial fluorescence was not significantly higher in the moderate shading group than in the control group,but significantly higher in the severe shading group;the maximum fluorescence was significantly higher in the shading group than in the control group,in the moderate shading group. The potential photochemical efficiency and maximum photochemical efficiency were not significantly different between the moderate shading group and the control group and decreased in the severe shading group,which was significantly lower than other treatment groups. Conclusion: Shading treatment is beneficial to the growth of A. senticosus. The moderate shading condition can significantly improve the photosynthesis of A. senticosus. Severe shading treatment can significantly inhibit the photosynthesis of A.senticosus leaves.This effect is related to the regulation of stomatal regulation. The activity of the photoreaction center is related.

关 键 词：刺五加 遮光 生长 光合作用 栽培条件 

分 类 号：R284.2[医药卫生—中药学] R289[医药卫生—中医学]