|Table of Contents|

Growth and Physiological Responses to High Salt Stress in Seedlings of Melon Germplasms

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2026年15
Page:
56-66
Research Field:
Publishing date:

Info

Title:
Growth and Physiological Responses to High Salt Stress in Seedlings of Melon Germplasms
Author(s):
CHI Xiangdan; WANG Yongzhuo; ZHAO Yanfei; ZHANG Jinpeng; JIN Xin; CHEN Ying
(Jilin Vegetable and Flower Science Research Institute，Jilin，Changchun 130033)
Keywords:
salt stress; melon germplasm resources; comprehensive evaluation
PACS:
S652
DOI:
10.11937/bfyy.20254394
Abstract:
Thirteen melon germplasm resources were used as the test materials to comprehensively evaluate their salt tolerance at the seedling stage by measuring growth and physiological indicators，combined with principal component analysis (PCA)and cluster analysis,in order to provide references for salt-tolerant breeding.The results showed that salt stress significantly inhibited seedling growth，with plant height reduction ranging from 15% to 57%.Malondialdehyde(MDA) content increased，proline(Pro) content accumulated substantially，and chlorophyll content decreased.Salt-tolerant materials maintained higher activities of superoxide dismutase (SOD)，peroxidase (POD)，and catalase (CAT)，and the activities of these three enzymes were significantly negatively correlated with MDA content.PCA extracted three principal components with a cumulative contribution rate of 86.039%.Cluster analysis classified the 13 materials into five salt-tolerance grades，among which No.8 (‘2025-42’) and No.12 (‘Mengmi’) were highly salt-tolerant，while No.4 and No.11 were highly sensitive.In conclusion，salt tolerance in melon was synergistically regulated by multiple physiological processes，with the coordinated defense capability of the antioxidant enzyme system serving as the core mechanism.

References:

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Last Update: 2026-08-13