|Table of Contents|

Alleviating Effect of Exogenous Salicylic Acid on Six Varieties of Lycium barbarum Under High Temperature Stress

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2025年6
Page:
90-96
Research Field:
Publishing date:

Info

Title:
Alleviating Effect of Exogenous Salicylic Acid on Six Varieties of Lycium barbarum Under High Temperature Stress
Author(s):
LU Jing1; 2; YANG Xiaoying2; 3; ZHAO Yuanxiao4; ZHANG Li2
(1.Ningxia Technical College of Wine and Desertification Prevention,Yinchuan,Ningxia 750199;2.College of Enology and Horticulture,Ningxia University,Yinchuan,Ningxia 750021;3.College of Civil Architecture,Yinchuan University of Energy，Yinchuan,Ningxia 750100;4.Ning Miao Lyu Bo Co.Ltd.,Yinchuan，Ningxia 750001)
Keywords:
salicylic acid; high temperature stress; Lycium barbarum; heat resistance
PACS:
S 853.75
DOI:
10.11937/bfyy.20243227
Abstract:
Six varieties of Lycium barbarum planted in Ningxia were treated with different concentrations of exogenous salicylic acid to study the effects of high temperature stress on photosynthetic index，cell membrane system and antioxidant enzyme activity of ‘Ningqi 4’‘Ningqi 5’‘Ningqi 7’‘Ningqi 9’‘Qixin 1’ and ‘Keqi 608’,in order to provide a reference for establishing a comprehensive evaluation system of heat resistance of Lycium barbarum.The results showed that within a specific concentration range，the application of exogenous salicylic acid spray mitigated the damage to Lycium barbarum seedlings caused by high temperature stress.Notably，at a salicylic acid concentration of 0.6 mmol·L-1，the net photosynthetic rate，transpiration rate，stomatal conductivity，intercellular CO2 concentration as well as SOD，POD，and CAT activities reached their peak values while relative conductivity and MDA content decreased to their lowest levels.Therefore，the treatment with a salicylic acid concentration of 0.6 mmol·L-1 demonstrated the most favorable effects.Principal component analysis results revealed that,the heat resistance of the 6 varieties of Lycium barbarum from high to low was ‘Keqi 608’>‘Qixin 1’>‘Ningqi 4’>‘Ningqi 5’>‘Ningqi 9’>‘Ningqi 7’.

References:

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Last Update: 2025-04-03