不同茶树种质间氟铝元素积累特性的研究

Acumulation and Distribution of Fluoride/Aluminum Elements in Different Tea Cultivars

茶树是一种富集F和Al元素的山茶科山茶属植物。以安溪和武夷山两个不同的自然环境条件下的闽南茶树种质为材料,采摘其春季、夏季、秋季的一芽三叶鲜叶,分别测定F、Al元素含量,采用spss19.0进行统计分析和聚类分析。研究发现,不同的茶树种质对F、Al元素分别有着不同程度的富集,同一制度对F、Al元素的共同富集呈极显著相关关系。不同茶树种质间F和Al在不同季节、不同生境条件下均差异显著,低富集F、Al元素的种质也能保持相对稳定遗传的积累特性,在季节间亦存在一定的吸收规律。从中分别筛选出了高、中、低3种不同程度富集F的茶树品种分别为4、14、37个,富集Al的分别为4、22、29个,其中共同低富集吸收F、Al的品种如T13、T14、杏仁茶等。为后续的筛选鉴定低吸收F、Al茶树品种,为生产上种植采摘加工茶叶选择原料时提供参考依据。

Tea （Camellia sinensis） belongs to the genus Camellia which can accumulate fluoride （F） and aluminum （A1） elements. In this paper we collected a bud and three leaves of the tea varieties Anxi and Wuyishan in Spring, Summer, Autumn as the materials under two different natural environmental conditions to analyze the F and A1 element content. It showed that the F and A1 contents of different tea varieties of different habitat conditions in different seasons changed significantly, and the accumulation of the elements was positively related. 4, 14 and 37 varieties with high, medium and low F accuumulation ability, 4, 22 and 29 varieties with high, medium and low A1 accuumulation ability were identified. The varieties such as ＇T13＇ , ＇T14＇ , ＇Xingrencha＇ had the capability of low accumulation both F and A1. The study could provide a reference for screening of low A1 and F, tea cuhivars and best material when processing tea.