Welcome to Journal of Agriculture,

Journal of Agriculture ›› 2021, Vol. 11 ›› Issue (3): 68-73.doi: 10.11923/j.issn.2095-4050.cjas2020-0077

Special Issue: 园艺 农业气象

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Meteorological Factors of Quality Formation of Baojing Gold Tea at Different Altitudes: A Preliminary Study

Xiao Jian1,2(), Liu Hui1, Zheng Fuwei3, Shuai Xiqiang4(), Liu Song1   

  1. 1Hengyang Meteorological Bureau, Hengyang 421000, Hunan, China
    2Hunan Provincial Key Laboratory of Meteorological Disaster Prevention and Mitigation, Changsha 410118, Hunan, China
    3Xiangxi Meteorological Bureau, Jishou 416000, Hunan, China
    4Hunan Institute of Meteorological Science, Changsha 410118, Hunan, China
  • Received:2020-06-01 Revised:2020-12-23 Online:2021-03-20 Published:2021-04-07
  • Contact: Shuai Xiqiang E-mail:465797664@qq.com;654534248@qq.com

Abstract:

To determine the relationship between the quality of Baojing gold tea at different altitudes and meteorological factors, this paper established a calculation model for the polyphenol content and amino acid content of Baojing gold tea by applying correlation analysis. The results show that: tea polyphenols of Baojing gold tea are negatively correlated with the average temperature and daily temperature range before picking, and positively correlated with the accumulated rainfall. The most influential period and meteorological factors are the average temperature of 14-22 days before picking, the daily temperature range of 16-24 days before picking, and the accumulated rainfall of 4-27 days before picking. Amino acid content is positively correlated with average temperature, daily temperature range and accumulated rainfall. The most influential period and related factors are the average temperature of 18-28 days before picking, the daily temperature range of 9-14 days before picking, and the accumulated rainfall of 12-23 days before picking. According to the model calculation, the phenol ammonia ratio of Baojing gold tea at 360 m in 2019 is close to the actual measured value, and the error is within 10%. The model can be used to evaluate the meteorological conditions of Baojing gold tea quality.

Key words: Baojing Gold Tea, Tea Quality, Meteorological Factor, Altitudes

CLC Number: