Yuncha 8

Yuncha 8 (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.602-603: [Applicant] Tea Research Institute of Yunnan Academy of Agricultural Sciences. [Breeder] Tian Yiping; Xu Yan; Shang Weiquong; Pang Dandan; Liu Yue; Deng Shaochun; Chen Chunlin; Xu Pizhong; Sun Chao. [Variety Number] Non-major crop variety registration number: GPD Tea Tree (2023)530082. former Yunnan Provincial Crop Variety Validation Committee validation number: Yunnan Tea No. 11, formerly known as '73-8'. [Variety origin] Yunnan Academy of Agricultural Sciences, Tea Research Institute from Yunnan Fengqing 'Zaosheng Yuanye Daye', in a single selection. [Characteristics] Small tree type, large-leaved, early-born species. The tree posture is semi-open, with strong growth potential, high branching part and sparse branching. Leaf blade upward bearing, narrow oval, 12.7 cm long, 4.8 cm wide, leaf color yellow-green, apex sharp. The exploitation period in Menghai area is generally in the middle of February, and the full bloom period of one bud and two leaves is generally in the middle of February; the germination density is high, with a lot of velvet; the length of one bud and three leaves is 8.2 centimeters, and the weight of one hundred buds is 115.0 grams. The blooming period is in the middle of September every year, the size of corolla is 4.1cmx3.9cm, the length of pedicel is 1.1cm, the calyx is 5, green and velvet; petals are 6-8, white in color, medium in texture, and velvet; the length of style is 1.3cm, the stigma is 3-lobed and shallowly lobed, and the relative heights of pistil and stamen are equal. The biochemical sample of one bud and two leaves in spring contains 28.6% of tea polyphenols, 3.0% of amino acids, 3.2% of caffeine, and 49.4% of water leachate. It is suitable for making green tea and Pu Bao tea. Green tea, aroma and flavor. The system Pu Fu sun green tea, the aroma is more high and fresh, the taste is more sweet, slightly obscene; the system Pu Bo ripe tea, the soup color is more red, thick, bright, the aroma is sweet and old, the taste is mellow, more sweet. The first growth cycle mu yield of one bud and two leaves 667 kg of fresh leaves, than the control 'Yunkang 10' yield reduction of 3%; the second growth cycle mu yield 729 kg, than the control 'Yunkang 10' yield reduction of 1%. Resistant to anthracnose, cloudy leaf blight, tea cake disease, moderately resistant to small green leafhopper, susceptible to coffee mite, thrips, cold hardiness, drought tolerance. [Suitable for planting area and cultivation technology points] Suitable for planting in tropical subtropical ecological zone in Yunnan Xishuangbanna, Pu'er, Baoshan, Dehong, Lincang and other areas in the rainy season. It is appropriate to use double rows of single planting, 2000 plants per mu; deep digging planting ditch, adequate bottom fertilizer, planting before applying farmyard manure 4000-4500 kg / mu; strict 3 times stereotypes pruning. Spring tea sprouting early, pay attention to the prevention of inverted spring cold, pay attention to the prevention and control of coffee small clawed mite, thrips.

云茶8号 (Camellia sinensis var. assamica ‘Yuncha 8’). 陈亮等. 2024.《中国茶树品种资源志（上卷）茶树登记品种》第602-603页：【申请者】云南省农业科学院茶叶研究所。【育种者】田易萍；许燕；尚卫琼；庞丹丹；刘悦；邓少春；陈春林；徐丕忠；孙超。【品种编号】非主要农作物品种登记编号：GPD茶树（2023)530082。原云南省农作物品种审定委员会审定编号：滇茶11号，原名‘73-8号’。【品种来源】云南省农业科学院茶叶研究所从云南凤庆‘早生圆叶大叶种’，中单株选育而成。【特征特性】小乔木型，大叶类，早生种。树姿半开张，生长势强，分枝部位高，分枝稀。叶片向上着生，窄椭圆形，长12.7厘米，宽4.8厘米，叶色黄绿色，先端尖锐。勐海地区开采期一般为2月中旬，一芽二叶盛期一般在2月上中旬；发芽密度高，茸毛多；一芽三叶长8.2厘米、百芽重115.0克。盛花期为每年9月中旬，花冠大小为4.1厘米x3.9厘米，花梗长度1.1厘米，花萼5个、绿色、有茸毛；花瓣6-8枚、色泽白色、质地中、有茸毛；花柱长度1.3厘米，柱头3裂、裂位浅，雌蕊和雄蕊相对高度为等高。春季一芽二叶生化样含茶多酚28.6%，氨基酸3.0%，咖啡碱3.2%，水浸出物49.4%。适制绿茶和普搏茶。制绿茶，香气清香，滋味浓醇。制普傅晒青茶，香气较高爽，滋味较甘醇、微涩；制普搏熟茶，汤色较红浓、明亮，香气甜陈，滋味醇厚、较甘。第一生长周期亩产一芽二叶鲜叶667千克，比对照‘云抗10号’减产3%；第二生长周期亩产729千克，比对照‘云抗10号’减产1%。抗炭疽病、云纹叶枯病、茶饼病，中抗小绿叶蝉，感咖啡小爪螨、蓟马，耐寒性中，耐旱性强。【适宜种植区域及栽培技术要点】适宜在热带亚热带生态区云南西双版纳、普洱、保山、德宏、临沧等地区雨季种植。宜采用双行单株种植，每亩栽2000株；深挖种植沟，施足底肥，种植前施农家肥4000-4500千克/亩；严格3次定型修剪。春茶萌发特早，注意预防倒春寒，注意防治咖啡小爪螨、蓟马。