Yuncha 1

Yuncha 1. (C.sinensis var. assamica).  Yang Yajun and Liang Yuerong, 2014. Clone Cultivars of Tea in China. p.273,  Registed new tea cultivar in China in 2005, Registration #20050030. Chen Liang et al. 2024. Records of Tea Cultivars and Resources of Chinese Tea resources (Volume I)-Registered Tea Cultivars. p.594-595: [Applicant] Tea Research Institute of Yunnan Academy of Agricultural Sciences. [Breeder] Jun Zhang; Yiping Tian; Pizhong Xu; Hui Zhang; Mingzhi Liang; Chunlin Chen; Shaochun Deng; Linbo Chen. [Variety Number] Non-major Crop Variety Registration No. GPD Tea Tree (2020)530007, Plant Variety Right No. 20050030, Former Yunnan Seed Administration Station Variety Identification No. Dian Jian 200508. [Variety Source] Selected by Tea Research Institute of Yunnan Academy of Agricultural Sciences from 'Xiye Nuocha' in Yuanjiang, Yunnan Province. [Characteristics] The plant is tall, with a semi-open posture and sparse branching. The leaves are upwardly inserted, oval, dark green, glossy, inwardly folded, leaf surface elevated, leaf margin undulate, leaf tip acute, leaf teeth fine, leaf texture brittle and hard. In the Menghai area, the new buds and three leaves bloom in early March, the buds and leaves have strong fertility, hold tenderness, buds and leaves are fat and strong, velvet hairs are especially many, the buds and three leaves are 7.9 centimeters long, and the weight of one hundred buds is 144.0 grams. Flowering period in mid to late September, corolla size 4.9 cm x 4.3 cm, petals 6-8, ovary hairy, style 3-4 fissures, fissures in the middle, pistil and stamen relative height is equal or low, calyx hairy, calyx number 5, anthocyanin colorless; fruit maturity in early October, tea fruit 2-5 rooms, fruit diameter 2.6 cm x 2.8 cm, seed diameter 1.6 cm x 1.8 cm The weight of 100 grains is 415.0 grams. The biochemical sample of one bud and two leaves of spring tea contains 20.1% tea polyphenols, 3% amino acids, 3.7% caffeine, 48.2% water leachate. Suitable for green tea, black tea, white tea and pu-erh tea. For green tea, it has chestnut aroma and mellow flavor; for black tea, it has strong aroma and strong flavor; for white tea, it has sweet floral aroma and mellow flavor, mellow and mellow flavor, slightly floral; for sun-dried green tea, it has strong aroma, floral aroma and mellow flavor. The first growth cycle mu yield 206 kg of dry tea, 3% higher than the control 'Yunkang 10'; the second growth cycle mu yield 208 kg of dry tea, 2% higher than the control 'Yunkang 10'. Resistant to tea anthracnose, tea cake disease, tea small green leafhopper. Cold resistance and drought resistance are strong in Yunnan tea area. The propagation rate of cuttings is medium, and the survival rate of transplanting is high. [Suitable for planting area and cultivation technology] It is suitable for planting in Yunnan tea area with an altitude of 600-2000 meters, an average annual temperature of 15˚C, and an extreme low temperature of -5˚C or more. Newly built tea gardens should be fertilized with sufficient fertilizers and pruned strictly 3-4 times. Pay attention to the fertilizer management of the mother garden to cultivate high-quality scions. Tea cuttings rooting slow, seedling cuttings, with ABT1 rooting powder 100 mg / kg dip strip 3-5 hours, can shorten the rooting time, improve the survival rate.