|Table of Contents|

Responses of Physiology and Photosynthesis to Different Rhododendron  Cultivars Under Drought Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年07
Page:
69-73
Research Field:
Publishing date:

Info

Title:
Responses of Physiology and Photosynthesis to Different Rhododendron  Cultivars Under Drought Stress
Author(s):
ZHOU Yuan; FANG Linchuan; DONG Yanfang; TONG Jun; MAO Jing; XU Dongyun
(Institute of Forestry & Fruit-tree,Wuhan Academy of Agricultural Science &Technology/Hubei Engineering Technology Research Center of Landscape Plant,Wuhan,Hubei 430075)
Keywords:
Rhododendron; drought stress; physiological response; chlorophyll fluorescence
PACS:
-
DOI:
10.11937/bfyy.201707017
Abstract:
The responses of physiology and photosynthesis were researched in Rhododendron ‘Yanzhimi’‘Yuanyangjin’‘Huahudie’‘Zichendian’‘Jinpao’‘Zihe’ under drought stress.The results showed that the leaves of Rhododendrons became drop,wilting with different degrees and even died,among those,the leaves of ‘Jinpao’ were hurt most lightly.The content of MDA increased and then decreased.The content of protein of most Rhododendrons appeared a gently decreasing trend but ‘Zihe’ decreased firstly and then increased,reaching the highest point after 10 days.The content of chlorophyll deceased firstly and then increased.Initial fluorescence (Fo) indicated decreasing trend firstly,and then increasing,however,that of ‘Huanhudie’ and ‘Zihe’ decreased sharply to zero and which was consisted with their appearance.The value of Fv/Fm (Optimal photochemical efficiency of PSII) and Fv/Fo (Potential activity of PSII) remained at a certain state,except two drought-sensitivity cultivars (‘Huanhudie’‘Zihe’) decreased sharply.

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Last Update: 2017-04-18