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Geographical Variation in Quality and Climatic Response of Hainan Large-leaf Black Tea
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Huifa ZHUANG1, Fan SU1, Xin HUANG2, Mengni PAN2, Hui WANG1
Chinese Journal of Tropical Crops | 2026, 47(2) : 531 - 542
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Chinese Journal of Tropical Crops | 2026, 47(2): 531-542
• Post-harvest Treatment & Quality Safety •
Geographical Variation in Quality and Climatic Response of Hainan Large-leaf Black Tea
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Huifa ZHUANG1, Fan SU1, Xin HUANG2, Mengni PAN2, Hui WANG1
Affiliations
  • 1.Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Genetic Resource Utilization of Spice and Beverage Crops, Ministry of Agriculture and Rural Affairs/Hainan Key Laboratory of Genetic Improvement and Quality Regulation for Tropical Spice and Beverage Crops, Wanning, Hainan 571533, China
  • 2.College of Tropical Crops, Yunnan Agricultural University, Pu'er, Yunnan 665000, China
Published: 2026-02-25 doi: 10.3969/j.issn.1000-2561.2026.02.023
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This study investigated the quality variation and climatic adaptation mechanisms of Hainan large-leaf and Yunnan large-leaf black tea through multi-component analysis and aroma characterization of tea samples from Wuzhishan, Wanning, and Baisha. The results demonstrated that Hainan large-leaf tea exhibited superior photosynthetic performance in Wanning and Wuzhishan, with maximum net photosynthetic rate reaching 7.28 μmol/(m2·s), accompanied by high amino acid content (up to 93.50 μmol/g) and moderate caffeine levels (3.93%-4.31%), forming a distinctive "high amino acid-moderate astringency" flavor profile. Aroma component analysis revealed significant regional differences in Hainan large-leaf tea, with Wanning characterized by benzaldehyde (14.51%)-dominant fruity notes and Baisha featuring linalool (31.18%)-rich floral aroma. Climatic adaptability analysis indicated that higher temperatures in Wanning (annual average 24.40 ℃) promoted the synthesis of tea polyphenols and catechins, while the cooler climate of Baisha (annual average 22.30 ℃) was more conducive to theaflavins formation and aroma compound accumulation. Compared with Yunnan large-leaf tea, Hainan large-leaf tea showed significant advantages in photosynthetic efficiency, amino acid accumulation, and aroma composition. The findings would provide theoretical support for optimizing production regions and developing characteristic products of Hainan black tea, with important implications for enhancing its market competitiveness.

Hainan black tea  /  photosynthetic characteristics  /  aroma components  /  climatic adaptation  /  quality characteristics
Huifa ZHUANG, Fan SU, Xin HUANG, Mengni PAN, Hui WANG. Geographical Variation in Quality and Climatic Response of Hainan Large-leaf Black Tea[J]. Chinese Journal of Tropical Crops, 2026 , 47 (2) : 531 -542 . DOI: 10.3969/j.issn.1000-2561.2026.02.023
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Year 2026 volume 47 Issue 2
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Article Info
doi: 10.3969/j.issn.1000-2561.2026.02.023
  • Receive Date：2025-09-02
  • Online Date：2026-06-26
  • Published：2026-02-25
Article Data
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History
  • Received：2025-09-02
  • Accepted：2025-10-30
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Affiliations
    1.Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Genetic Resource Utilization of Spice and Beverage Crops, Ministry of Agriculture and Rural Affairs/Hainan Key Laboratory of Genetic Improvement and Quality Regulation for Tropical Spice and Beverage Crops, Wanning, Hainan 571533, China
    2.College of Tropical Crops, Yunnan Agricultural University, Pu'er, Yunnan 665000, 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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