|Table of Contents|

Physiological Response of Korla Fragrant Pear to Drought Stress in Gobi Region

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2025年7
Page:
34-40
Research Field:
Publishing date:

Info

Title:
Physiological Response of Korla Fragrant Pear to Drought Stress in Gobi Region
Author(s):
LI Tianle1; AN Shijie1; YAN Pan2; DENG Yonghui2; ZHENG Qiangqing2; CHEN Qiling1
(1.Tiemenguan Experimental Station，Xinjiang Academy of Agricultural Reclamation Sciences，Tiemenguan,Xinjiang 841000；2.Institute of Forestry and Garden，Xinjiang Academy of Agricultural Reclamation Sciences，Shihezi，Xinjiang 832000)
Keywords:
Gobi region; Korla fragrant pear; drought stress; physiological response
PACS:
S 661.2
DOI:
10.11937/bfyy.20243624
Abstract:
The eight-year-old Korla Fragrant Pear was used as experimental material，the effects of drought stress on osmotic regulation substances and antioxidant enzyme activities of leaves and fruits of Korla Fragrant Pear in Gobi region were studied by using three kinds of single factor test method，in order to provide a reference for the close planting of Korla fragrant pears in Gobi region.The results showed that the antioxidant enzyme activity and the contents of proline，soluble sugar and betaine in leaves and fruits of Korla Fragrant Pear were increased under mild and moderate drought stress，while the MDA content in leaves and fruits was effectively decreased.Through principal component analysis of osmotic regulatory substances and antioxidant enzyme activities in leaves and fruits of Korla fragrant pear，it was found that severe drought stress induced its own defense mechanism，so its comprehensive evaluation score was high.To sum up，the lower limit of water demand in the Gobi region of Korla fragrant pear in Tiemenguan City of the Second Division was 55% of the field capacity.

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Last Update: 2025-04-16