中国农业科技导报 ›› 2023, Vol. 25 ›› Issue (4): 178-188.DOI: 10.13304/j.nykjdb.2022.0228

• 生物制造 资源生态 • 上一篇    

不同茶树种质资源花器矿质元素含量分析与综合评价

郑淑琳1,2(), 石玉涛1(), 王飞权1, 吴邦强3, 李远华1, 张渤1, 叶乃兴2()   

  1. 1.武夷学院茶与食品学院,茶叶福建省高校工程研究中心,武夷学院茶叶科学研究所,福建 武夷山 354300
    2.福建农林大学园艺学院,福州 350002
    3.福建省武夷山生物研究所,福建 武夷山354300
  • 收稿日期:2022-03-25 接受日期:2022-05-07 出版日期:2023-04-01 发布日期:2023-06-26
  • 通讯作者: 石玉涛,叶乃兴
  • 作者简介:郑淑琳 E-mail: zsl@wuyiu.edu.cn
  • 基金资助:
    福建省中青年教师教育科研项目(JAT200675);武夷学院科研基金项目(XL201801);茶学福建省高校重点实验室开放课题项目(KLTS2018003);福建省属公益类科研院所专项(2020R1008002);福建省科技厅科技创新平台项目(2018N2004);福建省一流本科专业(茶学)建设项目(SJZY201904)

Analysis and Comprehensive Evaluation of Content of Mineral Elements in Flowers of Different Tea Germplasm Resources

Shulin ZHENG1,2(), Yutao SHI1(), Feiquan WANG1, Bangqiang WU3, Yuanhua LI1, Bo ZHANG1, Naixing YE2()   

  1. 1.College of Tea and Food Sciences,Wuyi University; Tea Engineering Research Center of Fujian Higher Education; Tea Science Research Institute of Wuyi University,Fujian Wuyishan 354300,China
    2.College of Horticulture,Fujian Agriculture and Forestry University,Fuzhou 350002,China
    3.Wuyi Mountains Biological Research Institute of Fujian Province,Fujian Wuyishan 354300,China
  • Received:2022-03-25 Accepted:2022-05-07 Online:2023-04-01 Published:2023-06-26
  • Contact: Yutao SHI,Naixing YE

摘要:

为综合评价不同茶树种质资源花器的矿质营养品质差异,采用电感耦合等离子体发射光谱仪法测定了23份茶树种质资源花器中18种矿质元素含量,并对其进行相关性分析、聚类热图分析和主成分分析。结果表明,茶树种质资源花器中18种矿质元素含量具有较为丰富的多样性,变异系数为11.86%~48.96%,遗传多样性指数为1.19~2.19;钾、钙、镁、磷、硫、铝、硼、钡、铬、铜、铁、锰、钛13种元素含量呈正态分布,钠、钴、镍、锌4种元素含量呈正偏态分布,硒含量呈负偏态分布;聚类热图分析将23份茶树种质资源花器分为3个类群;经主成分分析,矿质营养品质综合得分排在前5位的茶树种质资源花器材料依次为‘平阳特早茶’‘巴渝特早’‘黄金芽’‘名山早311’和‘大红袍’,可作为优先开发利用的材料。研究结果可为茶树种质资源的创新利用和茶树花产品的开发提供科学依据。

关键词: 茶树, 种质资源, 花器, 矿质元素, 主成分分析, 聚类热图分析

Abstract:

In order to evaluate the differences in the mineral nutrient quality of the flowers of different tea germplasm resources comprehensively, the contents of 18 mineral elements in 23 tea flower samples were determined by inductively coupled plasma optical emission spectroscopy (ICP-OES) and analyzed by correlation analysis, cluster heatmap analysis and principal component analysis. The results showed that there were abundant genetic variations among the 23 tea flower samples in the content of mineral elements. The coefficient of variation ranged from 11.86% to 48.96% and the genetic diversity index ranged from 1.19 to 2.19. Contents of K, Ca, Mg, P, S, Al, B, Ba, Cr, Cu, Fe, Mn, and Ti obeyed the normal distribution, contents of Na, Co, Ni and Zn obeyed positive skew distribution and content of Se obeyed negative skew distribution by W test. The 23 tea flower samples were divided into three groups by cluster heatmap analysis. According to the principal component analysis, the top five tea flower samples with higher comprehensive score of mineral nutrient quality were ‘Pingyangtezaocha’‘Bayutezao’ ‘Huangjinya’ ‘Mingshanzao 311’ and ‘Dahongpao’, which could be used as good materials for tea flower development and utilization. The results provided a scientific basis for the utilization of tea germplasms and product developing of tea flower.

Key words: tea plant, germplasm, flower, mineral element, principal component analysis, cluster heatmap analysis

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