云南地方茶树种质资源特异性评价  

Specificity Evaluation of Local Tea Germplasm Resources in Yunnan

作　　者：尚卫琼[1] 段志芬[1] 邓少春[1] 孙承冕[1] 杨毅坚[1] 李金龙 夏锐[1] 刘本英[1] SHANG Weiqiong;DUAN Zhifen;DENG Shaochun;SUN Chengmian;YANG Yijian;LI Jinlong;XIA Rui;LIU Benying(Tea Research Institute,Yunnan Academy of Agricultural Sciences/Yunnan Key Laboratory of Tea Science/Yunnan Tea Germplasm Resource Innovation and Cultivation Technology Engineering Research Center,Xishuangbanna,Yunnan 666201)

机构地区：[1]云南省农业科学院茶叶研究所/云南省茶学重点实验室/云南省茶树种质资源创新与配套栽培技术工程研究中心,云南西双版纳666201

出　　处：《中国农学通报》2022年第34期76-81,共6页Chinese Agricultural Science Bulletin

基　　金：云南省重大科技专项“世界大叶茶技术创新中心建设及成果产业化”(202102AE090038);云南省重大科技专项“云南特色茶资源发掘利用及新品种繁育推广”(2018ZG009)。

摘　　要：以定植于国家大叶茶树资源圃(勐海)中的50份云南不同地方茶树资源为试验材料,测定其生化成分进行统计分析,筛选特异资源。结果表明,50份云南不同地方的茶树资源茶多酚含量为20.35%~33.02%,平均含量为26.72%;氨基酸含量为1.95%~4.20%,平均含量为2.99%;咖啡碱含量为2.03%~5.17%,平均含量为2.93%;儿茶素总量为8.21%~21.29%,平均含量为11.12%。50份云南不同地方茶树资源茶多酚、氨基酸含量较高,32份试验材料属于高茶多酚茶树种质资源(茶多酚含量≥25.0%),26份试验材料属于高氨基酸茶树种质资源(氨基酸含量≥3.0%),1份试验材料属于高咖啡碱茶树种质资源(咖啡碱含量≥5.0%),1份试验材料属于高儿茶素茶树种质资源(儿茶素总量≥20.0%)。筛选出的茶树种质资源可为茶树遗传改良与创新提供参考。This study used 50 tea germplasms from different regions in Yunnan planted in National Large-leaf Tea Tree Resource Repository(Menghai)as the test materials,to determine and analyze the contents of tea biochemical components and screen specific resources.The results of the experiment showed that in the 50 tea germplasms from different regions of Yunnan,the content of tea polyphenols ranged from 20.35%to 33.02%,and the average content was 26.72%.The content of amino acids ranged from 1.95%to 4.20%with the average content of 2.99%.The caffeine content ranged from 2.03%to 5.17%,and the average content was 2.93%.The total amount of catechins was from 8.21%to 21.29%with the average content of 11.12%.In general,the 50 tea germplasms have high contents of tea polyphenols and amino acids.32 tested germplasms belong to high tea polyphenols resource(tea polyphenols content≥25.0%),26 belong to high amino acids resource(amino acid content≥3.0%),1 belong to high caffeine resource(caffeine content≥5.0%),and 1 belong to high catechins resource(catechins content≥20.0%).The selected germplasm resources can be used for genetic improvement of tea tree.

关 键 词：茶 资源 特异性 云南 评价 

分 类 号：S571.1[农业科学—茶叶生产加工]