|Table of Contents|

Evaluation and Identification of Salt Tolerance of 21 Cultivars of Ornamental Chrysanthemum

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2025年6
Page:
26-34
Research Field:
Publishing date:

Info

Title:
Evaluation and Identification of Salt Tolerance of 21 Cultivars of Ornamental Chrysanthemum
Author(s):
ZHANG Yixue12LI Haiyan12GAO Mengmeng3ZHANG Kaiming12LI Yonghua12LI Fei12
(1.College of Landscape Architecture and Art,Henan Agricultural University,Zhengzhou,Henan 450002;2.Zhengzhou Key Laboratory for Development and Utilization of Characteristic Landscape Plant Resources,Zhengzhou,Henan 450002;3.Kaifeng Academy of Agriculture and Forestry,Kaifeng,Henan 475000)
Keywords:
ornamental chrysanthemumsalt tolerancemembership function analysisprincipal component analysiscomprehensive evaluation
PACS:
S682.1+1
DOI:
10.11937/bfyy.20244009
Abstract:
Taking 21 new varieties of ornamental chrysanthemums from Kaifeng Academy of Agriculture and Forestry Sciences as test materials,the effects of salt stress on 20 indicators including morphological changes,plant height,stem thickness,relative water content,relative conductivity,photosynthetic pigment content,and malondialdehyde content were studied by using 200 mmol·L-1 NaCl for salt stress treatment.Principal component analysis,membership function analysis,and cluster analysis were used to comprehensively evaluate the salt tolerance of each sample,in order to provide reference for the screening of salt tolerant germplasm of ornamental chrysanthemums and the improvement of the salt tolerance evaluation system.The results showed that salt stress reduced the indicators such as plant height,stem diameter,relative water content,and photosynthetic pigment content of ornamental chrysanthemum to varying degrees,while the indicators such as relative conductivity,malondialdehyde content,POD activity,and proline content increased,and the 20 indicators had different degrees of correlation.Ci,POD,Ls,AMC,Fm,RWC,and SP were screened out as comprehensive evaluation indicators of salt tolerance of ornamental chrysanthemum.Based on the classification of comprehensive salt tolerance grades and the comprehensive evaluation results of salt tolerance,21 varieties of ornamental chrysanthemum were divided into five grades:strong salt tolerance,relatively strong salt tolerance,medium salt tolerance,relatively weak salt tolerance,and salt sensitivity.Among them,two varieties with strong salt tolerance,‘Q19-3-40’ and ‘Q19-1-8’,were screened out.

References:

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Last Update: 2025-04-03