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Position: Home > Articles > Effect of Different Shading Treatments on Photosynthetic Characteristics of Sarcococca ruscifolia Stapf Guizhou Forestry Science and Technology 2015,43 (4) 26-30

遮光对野扇花光合特性的影响

作  者:
陈菊艳;杨远庆
单  位:
贵州省林业科学研究院;贵州大学林学院
关键词:
野扇花;遮光;光合特性
摘  要:
本文研究了不同程度的遮光处理(0%、30%、60%、85%)对野扇花叶片光合特性的影响。结果表明:野扇花的光补偿点和光饱和点均较低,且随着遮光程度的增加,光补偿点、光饱和点逐渐降低。遮光导致了叶片表观光合量子效率不断增大,且在遮光60%的环境下达到最大值,暗呼吸速率呈先增加后减小的趋势,最大净光合速率的大小关系为遮光60%>85%>0%>30%;研究表明野扇花对光具有较强的内在调节机制,耐受荫生环境,可栽植于较荫的光照环境中。
译  名:
Effect of Different Shading Treatments on Photosynthetic Characteristics of Sarcococca ruscifolia Stapf
作  者:
CHEN Ju-yan;YANG Yuan-qing;Guizhou Academy of Forestry;College of Foresty,Guizhou University;
关键词:
Sarcococca ruscifolia Stapf;;shading;;photosynthetic characteristics
摘  要:
The research amied to provide the reference of illumination intensity for the cultivation of Sarcococca ruscifolia Stapf. The effects of the full day light and the different degrees of the shades( 30%,60%,85%) on the photosynthetic characteristics and on the chlorophyll fluorescence parameters of S. ruscifolia Stapf were examined in these observation. The results indicated that the light compensation point( LCP) and light saturation point( LSP) of the S. ruscifolia Stapf plant were at a low level,the value of which decreased with the increasing of shade degree. These results indicated that S. ruscifolia Stapf can tolerate a wide range light conditions,especially low light,and has internal regulatory mechanisms for responding to light level.

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