|Table of Contents|

Effect of High Temperature and Drought on Korla Fragrant Pear Photosynthetic Characteristics(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年06
Page:
18-22
Research Field:
Publishing date:

Info

Title:
Effect of High Temperature and Drought on Korla Fragrant Pear Photosynthetic Characteristics
Author(s):
MU Zhen-zhen1; WANG Yi-jing1; Aihemaiti?ABUDUREYIMU2 ; Karim? ALI1
(1.College of Forestry and Horticulture，Xinjiang Agricultural University，Urumqi，Xinjiang 830052；2.Research Center of Korla Fragrant Pear，Mongolian Autonomous Prefecture of Bayingolin，Kurla，Xinjiang 841000)
Keywords:
high temperature and drought; the Korla fragrant pear; photosynthetic characteristics; chlorophyll
PACS:
-
DOI:
10.11937/bfyy.201506005
Abstract:
Taking Korla fragrant pear as materials，the effect of high temperature and drought on photosynthetic characteristics and chlorophyll content in Korla fragrant pear were measured under different treatments，including high temperature and drought，watered，sprayed.The results showed that the variation curve of Korla fragrant pear leaf net photosynthetic rate presented double-apex with a phenomenon of photosynthetic ‘noon breaking’ and stomatal limitation in the high temperature and drought condition.The variation curves of stomata conductance and transpiration rate showed the same，which displayed a hollow pattern.The variation curves of intercellular CO2 may be influenced by the net photosynthetic rate showed a decreasing trend at noon.The variation curve of Korla fragrant pear leaf net photosynthetic rate presented single-apex in the watered condition.The variation curves of stomata conductance and transpiration rate showed the same.The variation curves of intercellular CO2 appeared smaller changed which may be influenced by stomatal occurred uneven.High temperature and drought trees led to a prominent drop in the contents of Chl a,Chl b and Chl a+b.In a word,the watered and sprayed treatment could improve the chlorophyll content.

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Last Update: 2015-06-25