文献类型： 外文期刊
作者： Wang, Yuxin 1 ; Li, Jianlong 3 ; Wu, Shuhua 3 ; Li, Hanxiang 1 ; Gu, Dachuan 1 ;
作者机构： 1.Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, 723 Xingke Rd, Guangzhou 510650, Peoples R China
2.Chinese Acad Sci, State Key Lab Plant Divers & Specialty Crops, South China Bot Garden, 723 Xingke Rd, Guangzhou 510650, Peoples R China
3.Guangdong Acad Agr Sci, Tea Res Inst, Dafeng Rd 6, Guangzhou 510640, Peoples R China
4.Guangdong Prov Key Lab Tea Plant Resources Innovat, Dafeng Rd 6, Guangzhou 510640, Peoples R China
5.Chinese Acad Sci, Key Lab Natl Forestry & Grassland Adm Plant Conser, South China Bot Garden, 723 Xingke Rd, Guangzhou 510650, Peoples R China
6.Univ Chinese Acad Sci, Coll Adv Agr Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
关键词： Camellia sinensis; Gibberellic acid; Growth; Quality; Tea; Yield
期刊名称：EUROPEAN JOURNAL OF AGRONOMY （ 影响因子：5.5； 五年影响因子：5.9 ）
ISSN： 1161-0301
年卷期： 2025 年 168 卷
页码：
收录情况： SCI
摘要： The tea plant (Camellia sinensis) is an important woody economic crop, and the growth of young tea shoots directly affects the economic value of tea. The application of commercial gibberellic acid (GA3) can regulate the growth of tea plants, facilitating staggered harvesting for farmers. However, the impact of commercial GA3 on tea yield and quality remains unknown, and its safety requires further investigation. In this study, we applied commercial GA3 to tea gardens in both autumn and spring. The results showed that the application of commercial GA3 increased the growth rate and sprouting density of tea shoots during their growth period, thereby enhancing tea yield by increasing sprouting density. The application of commercial gibberellic acid did not reduce the quality of fresh leaves or tea products in either autumn or spring. Additionally, acute oral toxicity tests indicated that the LD50 for mice consuming tea processed from GA3-treated plants was greater than 10 g/kg. Transcriptome analysis suggested that GA3 treatment might promote sprouting and growth by integrating multiple plant hormone pathways, enhancing photosynthesis, hormone signal transduction, and cell wall synthesis. The study comprehensively evaluated the application of commercial GA3 in tea garden.
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