关键词: 鸟王茶, 叶片外观表现型, 矿质元素, 品质, 季节

Abstract: 【Objective】 In order to screen out a good single plant of Niaowang tea with stable yield and quality,and to lay a foundation for further breeding of high-yield and high-quality breed of Niaowang tea.【Method】 Three main types of cultivated leavesof Niaowang tea were taken as the research objects.The trends of the biomass of Niaowang tea of different leaf types was studied,the content of the mineral elements and the tea quality such as catechins,polyphenols,caffeineofniaowang tea under different picking seasons also were analyzed,and the harvestand quality of Niaowang tea of different leaf types and picking seasons were discussed comprehensively.【Result】 The number of annual sprouting branches and the germination density per year were being small leaf type>middle leaf type>large leaf type,one bud and one leaf with 100 buds weight was being large leaf type>middle leaf type>small leaf type.The content of Ca was being summer tea>autumn tea>spring tea,the content of Fe and Mg was being autumn tea>spring tea>summer tea,the content of Se and Zn was being spring tea>autumn tea>summer tea.The content of water extract and total catechins were being summer tea>autumn tea>spring tea,the content of tea polyphenols was being autumn tea>summer tea>spring tea,the content of caffeine was being summer tea>spring tea>autumn tea.【Conclusion】 The biochemical indexes of spring tea with different leaf types of Niaowang tea were suitable for making high-quality green tea;the biochemical indexes of summer and autumn buds were suitable for making high-quality black tea;the middle leaf type can be used as breeding material for single plant,the large leaf type can be used for trial production of Oolong tea products.

Key words: Niaowang tea, leaf phenotype, mineral elements, quality, season