|Table of Contents|

Effects of Different Stress Conditions on Physiological Characteristics of Sweet Cherry Rootstocks

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年15
Page:
24-32
Research Field:
Publishing date:

Info

Title:
Effects of Different Stress Conditions on Physiological Characteristics of Sweet Cherry Rootstocks
Author(s):
WANG Ying; YANG Yinghong; LIU Jin; MA Jianfang; ZHAO Xinhong; YANG Junxia
(Tianshui Fruit Research Institute，Tianshui，Gansu 741002)
Keywords:
sweet cherry rootstocks; drought stress; saline-alkali stress; osmotic regulatory substances; antioxidants
PACS:
S 662.5
DOI:
10.11937/bfyy.20240144
Abstract:
Six types of sweet cherry rootstock one-year cuttings was used as expriment materials，and were subjected to different severity of drought stress and salt concentration stress treatments.The principal component analysis method was used to comprehensively analyze the malondialdehyde content，chlorophyll content，and three enzyme activity indicators (POD，SOD and CAT) in sweet cherry rootstocks under different stress conditions，excellent sweet cherry rootstock resources with drought resistance and salt tolerance were screened out，in order to provide reference for rootstock selection and cherry cultivation.The results showed that,under sustained drought stress conditions，content of osmolytes (SS，Pro) was increased,the activities of antioxidant enzyme(SOD，POD，CAT) were increased and the accumulation of malondialdehyde were promoted，with a decreasing trend in chlorophyll content in cherry rootstocks.As the concentration of salt stress increases，the content of osmolytes (SS，Pro) in cherry rootstocks also increased，and the activity of antioxidant enzymes (SOD，POD，CAT) increased to counteract the physiological changes caused by salt stress.The decrease in chlorophyll content led to weakened photosynthesis.The results showed that differences in the physiological and metabolic response mechanisms and stress alleviation capabilities of different cherry rootstocks when facing adverse stress conditions，with ‘Mahali’ cherry rootstocks exhibiting ideal stress resistance.

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Last Update: 2024-08-23