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Salt Tolerance Evaluation of Cucumber Germplasm under Sodium Chloride Stress

文献类型： 外文期刊

作者： Li, Libin 1 ; Du, Lianda 2 ; Cao, Qiwei 1 ; Yang, Zonghui 1 ; Liu, Yihan 3 ; Yang, Hua 3 ; Duan, Xi 4 ; Meng, Zhaojuan 1 ;

作者机构： 1.Shandong Acad Agr Sci, Natl Vegetable Improvement Ctr, Key Lab Greenhouse Vegetable Biol Shandong Prov, Vegetable Sci Observat & Expt Stn Huang Huai Reg,M, Jinan 250100, Peoples R China

2.Shandong Agr Univ, Coll Hort Sci & Engn, Tai An 271018, Peoples R China

3.China Agr Univ, Coll Hort, Beijing 100193, Peoples R China

4.Shandong Agr & Engn Univ, Coll Agr Sci & Technol, Jinan 250100, Peoples R China

关键词： cucumber; NaCl stress; survival rate; cluster analysis; principal component analysis

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN：

年卷期： 2023 年 12 卷 16 期

页码：

收录情况： SCI

摘要： Cucumber (Cucumis sativus L.) is an important horticultural crop worldwide. Sodium (Na+) and chloride (Cl-) in the surface soil are the major limiting factors in coastal areas of Shandong Province in China. Therefore, to understand the mechanism used by cucumber to adapt to sodium chloride (NaCl), we analyzed the phenotypic and physiological indicators of eighteen cucumber germplasms after three days under 100 and 150 mM NaCl treatment. A cluster analysis revealed that eighteen germplasms could be divided into five groups based on their physiological indicators. The first three groups consisted of seven salt-tolerant and medium salt-tolerant germplasms, including HLT1128h, Zhenni, and MC2065. The two remaining groups consisted of five medium salt-sensitive germplasms, including DM26h and M1-2-h-10, and six salt-sensitive germplasms including M1XT and 228. A principal component analysis revealed that the trend of comprehensive scores was consistent with the segmental cluster analysis and survival rates of cucumber seedlings. Overall, the phenotype, comprehensive survival rate, cluster analysis, and principal component analysis revealed that the salt-tolerant and salt-sensitive germplasms were Zhenni, F11-15, MC2065, M1XT, M1-2-h-10, and DM26h. The results of this study will provide references to identify or screen salt-tolerant cucumber germplasms and lay a foundation for breeding salt-tolerant cucumber varieties.

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