Zhenong 139

Zhenong 139. (C. sinensis). Yang Yajun and Liang Yuerong, 2014. Clone Cultivars of Tea in China. p.98. Chen Liang et al. 2024. Records of Tea Cultivars and Resources of Chinese Tea resources (Volume I)-Registered Tea Cultivars. p.60-61: [Applicant] Zhejiang University. [Breeder] Liu Zusheng; Liang Yuerong; Zhao Dong; Lu Jianliang; Zhao Xueren; Wang Airong; Hu Yueling; Zheng Xinqiang. [Variety number] Non-major crop variety registration number: GPD Tea Tree (2020)330033. former National Tea Tree Variety Identification Committee identification number: National Pinjian Tea 2010011, Zhejiang Province Non-major Crop Variety Recognition Committee identification number: Zhejiang Recognition Tea 2006002. [Variety source] Tea Research Institute of Zhejiang University from the 'Fuding Dabaicha' and 'Yunnan Daye' natural hybrid progeny of single-strain selection and breeding. [Characteristics] Small tree type, early-blooming species, strong growth potential, half-open posture, medium leaf type, leaf blade length 8.8 cm, width 3.3 cm, leaf blade narrow oval, leaf insertion state level. In Hangzhou area spring tea bud one leaf period in mid-March, the new buds and leaves green, more velvet, bud shape is smaller, a bud of three leaves 7.3 centimeters long, one hundred bud weight 58.0 grams. Spring tea bud two leaves biochemical samples containing tea polyphenols 12.4%, amino acids 4.5%, caffeine 2.9%, water leachate 49.0%. Suitable for green tea. Green tea production, the appearance of firm, green, show hair, high fragrance, taste fresh with fresh. The first growth cycle mu yield of one bud and two leaves of 160 kg of fresh leaves, 2% less than the control 'Fuding Dabaicha'; the second growth cycle mu yield of 266 kg, comparable with the control 'Fuding Dabaicha'. It is resistant to tea leafhopper, mite, aphid and weevil, susceptible to tea anthracnose, strong cold resistance and drought resistance. [Suitable for planting area and cultivation technology points] Suitable for planting in Zhejiang, Fujian, Sichuan and other tea areas in spring, fall and winter. It is appropriate to choose deep soil, windy and sunny plots, planted according to the specifications of conventional tea gardens. Early spring sprouting, pay attention to timely prevention of inverted spring cold.