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Growth and Physiological Effects of Exogenous ABA, CaCl2, SA under NaCl Stress on Camellia oleifera Seedlings
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Yanju LIU, Yufen XU, Zhaoyan YU, Kunlin WU, Qiulin CAO, Han GONG, Xiaocheng JIA*
Chinese Journal of Tropical Crops | 2025, 46(3) : 695 - 704
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Chinese Journal of Tropical Crops | 2025, 46(3): 695-704
• Plant Cultivation, Physiology & Biochemistry •
Growth and Physiological Effects of Exogenous ABA, CaCl2, SA under NaCl Stress on Camellia oleifera Seedlings
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Yanju LIU, Yufen XU, Zhaoyan YU, Kunlin WU, Qiulin CAO, Han GONG, Xiaocheng JIA*
Affiliations
  • Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences / Hainan Key Laboratory of Tropical Oil Crops Biology, Wenchang, Hainan 571339, China
Published: 2025-03-25 doi: 10.3969/j.issn.1000-2561.2025.03.017
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This study investigated the effects of exogenous abscisic acid (ABA), calcium chloride (CaCl2), and salicylic acid (SA) on the growth and physiological characterisics of Camellia oleifera seedlings subjected to NaCl stress, aiming to provide theoretical basis for enhancing the resistance of tea oil plants. One-year-old C. oleifera seedlings were utilized, and the impact of varying concentrations of ABA, CaCl2, and SA on growth parameters and related physiological indicators was assessed under NaCl stress. Under sole NaCl stress conditiongs, significant increase was observed in height growth, total dry weight, root-to-shoot ratio, soluble protein content, soluble sugar levels, membrane permeability, MDA, H2O2 content, as well as SOD and POD activities in C. oleifera seedlings. Furthermore, external application of different substances under NaCl stress enhanced height growth, total dry weight, soluble protein content, soluble sugar levels while reducing root-to-shoot ratio along with membrane permeability and MDA content in the seedlings. Comprehensive evaluation using membership function analysis indicated that treatment with 40 mmol/L CaCl2 was most effective in mitigating NaCl-induced damage to C. oleifera seedlings; this was followed by treatments with 200 µmol/L SA and 100 µmol/L SA.

Camellia oleifera  /  NaCl stress  /  ABA  /  CaCl2  /  SA  /  physiology
Yanju LIU, Yufen XU, Zhaoyan YU, Kunlin WU, Qiulin CAO, Han GONG, Xiaocheng JIA. Growth and Physiological Effects of Exogenous ABA, CaCl2, SA under NaCl Stress on Camellia oleifera Seedlings[J]. Chinese Journal of Tropical Crops, 2025 , 46 (3) : 695 -704 . DOI: 10.3969/j.issn.1000-2561.2025.03.017
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Year 2025 volume 46 Issue 3
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Article Info
doi: 10.3969/j.issn.1000-2561.2025.03.017
  • Receive Date：2024-09-30
  • Online Date：2026-06-25
  • Published：2025-03-25
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  • Received：2024-09-30
  • Accepted：2024-10-14
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    Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences / Hainan Key Laboratory of Tropical Oil Crops Biology, Wenchang, Hainan 571339, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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