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Research on the Photosynthesis of Manglietia tenuipesa Under Drought Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年03
Page:
72-76
Research Field:
Publishing date:

Info

Title:
Research on the Photosynthesis of Manglietia tenuipesa Under Drought Stress
Author(s):
LI Song-hai1; QIN De-wen2; WEI Zhong-mian1; QIN Wu-ming1; NIE Zhen-zhen2
(1.Guangxi Liangfengjiang National Park，Nanning，Guangxi 530031；2.Forestry College，Guangxi University，Nanning，Guangxi 530004）
Keywords:
drought stress; Manglietia tenuipesa; photosynthesis
PACS:
-
DOI:
10.11937/bfyy.201503023
Abstract:
Taking Manglietia tenuipesa as material，the effects of the normal water supply CK (soil moisture content was 80%)，mild drought stress (P1:65%)，moderate drought stress (P2:35%)，severe drought stress (P3:15%) four different drought intensities to coercion Manglietia tenuipesa were studied，and photosynthesis and chlorophyll fluorescence value of Manglietia tenuipesa leaves was analyszed.The results showed that with the enhancement of drought intensity，Manglietia tenuipesa photosynthetic capability decreased，Pmax，Tr，Gs and other photosynthetic indexes falled.But Ci reached the lowest in P2 treatment，the ability of obtaining CO2 of plant cell stabilized gradually，and it’s showed the drought resistance ability of Manglietia tenuipesa was weak；it’s found that，Fv/Fm，ΦPSII with the changing of light，which should be recovered to a stable value，showed Manglietia tenuipesa could maintain a certain level of photosynthesis in plants under stress conditions，ensure the plant body to gain energy.

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Last Update: 2015-03-02