Yunchaxiang 1 (Camellia sinensis var. assamica).
Chen Liang et al. 2024. Records of Tea Cultivars and Resources of Chinese Tea
resources (Volume I)-Registered Tea Cultivars. p.598-599: [Applicant] Tea Research Institute of Yunnan Academy of Agricultural Sciences. [Breeder] Bao Yunxiu; Huang Mei; Yang Xingrong; Liang Mingzhi; Tian Yiping; Chen Linbo; Pang Dandan; Liu Yufei; Deng Shaochun; Chen Chunlin; Xu Pizhong. [Variety number] Non-major crop variety registration number: GPD Tea Tree (2022)530051, new plant variety right number: CNA20090204.1. [Variety origin] From 'Yunkang 14' x 'Fuding Dabaicha' artificial hybrid F1 by Tea Research Institute of Yunnan Academy of Agricultural Sciences. F1 generation of artificial hybridization. [Characteristics] Small tree type, large leaves, early species. The tree posture is semi-open, with strong growth potential, high branching site and medium branching density. The leaf blade is upwardly inserted, the leaf blade is moderately elliptic, the length of the leaf blade is 14.5 centimeters, and the width is 5.7 centimeters; the color of the leaf is yellowish-green; the apex of the leaf blade is sharp. In the Menghai area, the exploitation period is generally in the middle of February, and the full bloom of one bud and two leaves is generally in the second half of February. The germination density is high, and there is a lot of velvet. The length of one bud and three leaves is 9.5 centimeters, and the weight of one hundred buds is 85.0 grams. Flowering period is in the middle of October every year, the corolla diameter is 5.4 cm x 4.8 cm, the ovary is hairy, the stigma is 3-lobed, the lobe is 1/3, the androgynous androgynous are as high as each other, and anthocyanin accumulates on the outside of the calyx. The biochemical sample of one bud and two leaves of spring tea contains 33.3% of tea polyphenols, 2.3% of amino acids, 4.6% of caffeine, 44.1% of water leachate. Suitable for green tea. Green tea, soup color is tender yellow, bright, aroma is still high, sweet, mellow taste, still sweet. The first growth cycle mu yield 834 kg of fresh leaves, than the control 'Yunkang 10' 119% increase in yield; the second growth cycle mu yield 791 kg of fresh leaves, than the control 'Yunkang 10' 119% increase in yield. Resistant to tea cloudy leaf blight, moderate resistance to tea cake disease, moderate resistance to tea yellow thrips, susceptible to tea leafhopper and coffee small clawed mite. Strong cold resistance and drought resistance in Yunnan tea area. [Suitable for planting area and cultivation technology] Suitable for planting in Yunnan Xishuangbanna, PuEr, Dali, Lincang, Baoshan, Dehong, Wenshan, Nujiang area in the summer time with sufficient rainfall. Young tea plantations are strictly pruned 3 times. Resistance to coffee small clawed mite, tea small green leafhopper ability is weak. Strengthen the management of the tea garden, reasonable picking, strengthen the fertilizer management, winter garden closure to remove fallen leaves, eradication of weeds in the tea garden, reduce the overwintering insect population base, reduce the source of insects.
