福建农业学报2017，Vol.32Issue(11)：1207-1212,6.DOI:10.19303/j.issn.1008-0384.2017.011.008
铁锰在茶树植株不同器官中的分布特征
Concentrations and Distributions of Iron and Manganese in Parts of Tea Plant
摘要
Abstract
Inductively coupled plasma mass spectrometry was applied to determine the contents of iron and manganese in teas from Fujian province.The distribution and accumulation characteristics in different parts of a tea plant were analyzed.The results showed that the mineral concentrations significantly differed among the varieties of teas studied.The iron contents ranged from 73.36 mg · kg-1 to 284.85 mg · kg-1 with a mean of 125.60 mg · kg-1,and manganese from 201.86 mg · kg 1 to 4 905.78 mg · kg-1 with a mean of 1 651.24 mg · kg-1.Overall,the black and the green teas contained more iron than oolong tea,whereas,oolong tea had a higher manganese content than the green or the black tea.There was no significantly difference on manganese content found between the green and the black tea.Significantly differences in the mineral contents were also shown among different parts of a tea plant.The iron concentrations in different parts ranked in the order of the fine roots (6 265.07 mg · kg-1) ＞ taproots (3 250.77 mg · kg-1) ＞ main stem (2 178.56 mg · kg-1) ＞ stem side (1 025.81 mg · kg-1) ＞ old leaves (347.50 mg · kg 1) ＞ young leaves (135.70 mg · kg-1).Thus,most of the iron was absorbed and accumulated in the roots and stems on a tea plant.On the other hand,the manganese in old leaves was the highest (P＜0.05),and evenly distributed in other parts throughout the plant.In general,Tieguanyin and Meizhan teas had greater iron or manganese contents as well as on enrichment coefficients in different parts of a tea plant than Jinguanyin or Jinxuan.关键词
茶叶/茶树品种/铁锰含量/分布特征/富集系数Key words
tea/tea varieties/iron and manganese/distribution characteristics/enrichment coefficient分类
农业科技引用本文复制引用
单睿阳,陈玉真,王峰,林栋良,臧春荣,高俊杰,陈常颂,尤志明,余文权..铁锰在茶树植株不同器官中的分布特征[J].福建农业学报,2017,32(11):1207-1212,6.基金项目
国家现代农业产业技术体系建设专项(CARS-23) （CARS-23）
福建省财政厅项目(20151297) （20151297）
福建省农业科学院茶叶科技创新团队建设项目(2016cytd) （2016cytd）
福建省农业科学院重点扶贫项目(2017) （2017）
