浙江农业学报2026，Vol.38Issue(4)：621-631,11.DOI:10.3969/j.issn.1004-1524.20241022
贵州野生古茶树单株TZRR1与福鼎大白茶的持嫩性和品质比较
Comparative analysis on the tenderness and quality of wild ancient tea plants TZRR1 and Camellia sinensis L.cv.Fudingdabaicha in Guizhou
摘要
Abstract
This study aims to fully utilize the unique germplasm resources of ancient tea plants in Guizhou,China.Using cutting seedlings derived from the easily propagated and rooted ancient tea tree single-plant variety TZRR1(Camellia sinensis L.cv.Tongzi rapid rooting1,TZRR1),which was obtained through preliminary screening,as the research material.Phenotypic observations revealed that the buds of TZRR1 had less downy hairs,yellowish-green leaves,and a high oil sheen.The weight of hundred buds with two leaves was 33.45 g.Compared with Fud-ingdabaicha(Camellia sinensis cv.Fudingdabaicha,FDDB),TZRR1 had a higher water content in the buds and leaves.Paraffin section analysis revealed that the xylem area in the leaves and stems of the TZRR1 variety was re-duced compared with FDDB.Further analysis of lignin relative content showed that TZRR1 was significantly(p＜0.05)lower than that in FDDB.Biochemical measurements of tea indicated that the content of tea polyphenols and water extract contents in the steamed samples of TZRR1 with one bud and two leaves were significantly higher than that of FDDB,with a phenol-ammonia ratio of 6.74.Using GC-MS(gas chromatography-mass spectrometry)tech-nology revealed differences in the aroma components and their relative contents in the fresh leaves and steamed green samples of TZRR1 and FDDB.The fresh leaves of TZRR1 contained higher relative contents of limonene,methyl sa-licylate,(E)-linalool oxide,and furfural acetate,while the fresh leaves of FDDB contained higher relative contents of benzaldehyde,benzothiazole,linalool,and geraniol.The steamed green samples of TZRR1 primarily exhibited floral and fruity aromas,with benzyl alcohol,nonanal,jasmine ketone,cis-3-hexenyl caproate,and ionone being the main aroma-contributing substances.The steamed green samples of FDDB mainly presented woody and floral aromas,with cedrol,carotene seed oil,nerolidol,α-farnesene,cedrene,and caryophyllene being the main aroma-contribu-ting substances.This study lays a theoretical foundation for the further development and utilization of ancient tea tree single-plant TZRR1.关键词
野生古茶树/持嫩性/品质/石蜡切片Key words
wild ancient tea tree/tenderness/quality/paraffin section分类
农业科技引用本文复制引用
石尹,汪艳霞,王娟英,黄小贞..贵州野生古茶树单株TZRR1与福鼎大白茶的持嫩性和品质比较[J].浙江农业学报,2026,38(4):621-631,11.基金项目
贵州省科技计划项目(黔科合科技支撑[2023]一般项目012) （黔科合科技支撑[2023]一般项目012）
贵州省教育厅青年科技人才成长项目(黔教合KY字[2022]153号) （黔教合KY字[2022]153号）
