|Table of Contents|

Effect of Shading on Growth,Photosynthetic and Accumulation of Index Components of Acanthopanax giraldii Harms(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年18
Page:
145-151
Research Field:
Publishing date:

Info

Title:
Effect of Shading on Growth,Photosynthetic and Accumulation of Index Components of Acanthopanax giraldii Harms
Author(s):
CHEN Yufeng1; HUANG Xufeng1; GU Rui2; ZHAO Can1; ZHONG Shihong3; WEI Xiaodong2
1.Traditional Chinese Medicine，Pharmaceutical University of Chengdu University,Chengdu，Sichuang 611137;2.National Medicine and Pharmacy College,Chengdu University of Traditional Chinese Medicine,Chengdu,Sichuang 611137;3.Chengdu Medical College,Pharmaceutical University,Chengdu,Sichuang 610083
Keywords:
Acanthopanax giraldii Harms; shading; growth; photosynthetic; accumulation of index components
PACS:
-
DOI:
10.11937/bfyy.20165036
Abstract:
The cultivated Acanthopanax giraldii Harms was used as material,growth,photosynthetic and accumulation of index components under different light environments respectively full illumination（CK）,moderate shading（A1）and heavy shading（A2）were analyzed,in order to select the suitable light environment for cultivation.The results showed that compared with control group,shading could ruduce the leaf thickness,increase leaf area and specific leaf area,especially the leaf area of A1 was obviously bigger than that of CK and A2（P＜0.05）;heavy shading could decrease the branching ability of Acanthopanax giraldii Harms,inhibit the growth of new branch.However,the inhibitory effect of moderate shading was not obvious,but also,to some extent moderate shading could be beneficial to the upward growth of Acanthopanax giraldii Harms.Fv/Fm was significantly increased,ΦPSII,ETR and qN significantly decreased under shading（P＜0.05）.qP increased greatly,especially the qP under the moderate shading significantly increased（P＜0.05）.The accumulation of chlorogenic acid and medofenoxate glycoside E in the stem bark of the Acanthopanax giraldii Harms was significantly inhibited by the shading,especially the heavy shading,but there was no significant difference on the content of chlorogenic acid between the A1 and CK (P>0.05).After comprehensive analysis,heavy shading went against the growth,photosynthetic and accumulation of index components of Acanthopanax giraldii Harms；however,Acanthopanax giraldii Harms under the moderate shading exhibited a strong adaptability of weak light tolerance strain.Therefore,in practice,it was necessary to build a layer of shade nets whose photopermeability rate was 50%,when the light was stronger in summer,dismantle shading network,demolite shading network when the light was weak or in the germination season of new branches,so as to ensure the normal growth of Acanthopanax giraldii Harms.

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Last Update: 2017-10-07