同一生境不同茶树品种对氟的吸收累积特征  

Study on Characteristics of Uptake and Accumulation of Fluorine(F) in Different Tea under Same Environment

作　　者：周宇 刘声传 梁远发 王家伦 刘红梅 魏杰 

机构地区：[1]贵州省茶叶研究所,贵州贵阳550006 [2]国家茶叶产业技术体系遵义综合试验站,贵州湄潭564100

出　　处：《西南农业学报》2012年第6期2157-2161,共5页Southwest China Journal of Agricultural Sciences

基　　金：贵州省委组织部贵州省高层次人才科研条件特助专项"低氟茶树种质资源利用与新品种选育";贵州省农业科学院专项项目"低氟茶树品种资源发掘与鉴选"[(2008)0111];农业部现代农业产业技术体系建设专项项目

摘　　要：为了解不同茶树品种在相同氟(F)背景值下对F的吸收积累特征,为选育低F茶树品种提供参考,选取同一茶园测定了黔湄502等13个茶树品种的叶长、叶宽和叶面积,以及各品种的侧根、老叶、嫩叶(一芽2叶)的F含量及其转移系数,并进行了老嫩叶的F含量与其叶长、叶宽、叶面积的相关性以及茶树品种嫩叶的F聚类分析。结果表明:同一生境下13个茶树品种体内的F含量分布次序为老叶(2142.26～5090.83 mg/kg)>嫩叶(64.44～193.10 mg/kg)>侧根(29.77～145.56 mg/kg);老叶、嫩叶的F转移系数分别为24.00～96.83、0.86～3.53,品种间差异显著;嫩叶对F的吸收累积量与其叶长、叶宽、叶面积无直线相关性。13个茶树品种可划分为4个类型,其中低F品种类型包含湄潭苔茶、贵茶育8号和黔湄701 3个品种。In order to understand the characteristics of fluorine （F） uptake and accumulation and provide the basis for breeding low F content tea varieties among 13 cultivars in the soils with the same background, the leaf length, leaf width, leaf area and F concentrations and F transfer coefficients of lateral root, old leaves and young leaves （ a bud and tow leaves） were analyzed among 13 tea varieties of the same tea garden. The results showed that, under the same habitat, distribution order of F in the tea plants was old leaves 〉 young leaves 〉 lateral root, F contents among 13 tea eultivars were different, F concentrations in lateral root, old and young leaves were 29.77 - 145.56, 2142.26 - 5090.83,64.44 - 193.10 mg/kg, respectively. F transfer coefficients of old and young leaves among 13 tea cultivam were significantly different, F transfer coefficients of old and young leaves were 24.00 - 96.83, 0.86 - 3.53, respectively. The correlation analysis showed F concentrations of young leaves did not correlate with leaf length, leaf width and leaf area. Then 13 tea cultivars were clustered into 4 types, of which the type of low F content included the 3 cuhivars of Meitantai, Guichayu 8 and Qianmei 701.

关 键 词：氟 茶树品种 吸收累积 低氟品种 

分 类 号：S571.1[农业科学—茶叶生产加工]