Changye Baihao

Changye Baihao. (C. sinensis var. assamica). Yang Yajun and Liang Yuerong, 2014. Clone Cultivars of Tea in China. p.242. Originated from Yunnan. Chen Liang et al. 2024. Records of Tea Cultivars and Resources of Chinese Tea resources (Volume I)-Registered Tea Cultivars. p.608-609: [Applicant] Tea Research Institute of Yunnan Academy of Agricultural Sciences. [Breeder] Wang Haisi; Du Xuan; Chaoji; Li Guangtao; Zhu Fengming; Deng Shaochun; Tian Yiping; Xu Pizhong; Liu Benying; Chen Chunlin; Xu Yan. [Variety number] Non-major crop variety registration number: GPD Tea Tree (2024)530003. former Yunnan crop variety certification number: Yunnan Tea No.4. [Variety Source] Selected by Tea Research Institute of Yunnan Academy of Agricultural Sciences from Menghai 'Nannuo Shanqunti'. [Characteristics] Tree-type, large-leaved, early-born species. Tree posture is open, growth potential is strong, branching site is high, branching is sparse. The leaf blade is upwardly inserted, narrowly elliptic, 14.1 centimeters long, 5.3 centimeters wide, green, with a sharp apex. The exploitation period in Menghai area is generally in the middle of March, and the full bloom period of one bud and two leaves is generally in the middle of March; the germination density is high, with much velvet; the length of one bud and three leaves is 9.5 centimeters, and the weight of one bud and three leaves in one hundred buds is 129.0 grams. The bloom period is in late September every year. The biochemical sample of spring tea bud two leaves contains 27.3% of tea polyphenols, 2.4% of amino acids, 2.2% of caffeine, 44.4% of water leachate. Suitable for black tea and green tea. For black tea, the appearance is strong and knotty, with golden hair, red soup color, bright, high sweet aroma and sweet taste; for green tea, the appearance is fat and tender buds, dark green, the soup color is tender green and clear, the aroma is clear with floral flavor, and the taste is fresh and strong. The first growth cycle mu yield of one bud and two leaves of 648 kg of fresh leaves, than the control 'Daheicha' yield increase of 1%; the second growth cycle mu yield of 708 kg, than the control 'Daheicha' yield increase of 6%. It is resistant to anthracnose, cloudy leaf blight, tea cake disease, small green leafhopper, coffee mite, thrips, cold resistance and drought resistance. [Suitable for planting area and cultivation technology] Suitable for planting in Yunnan tea area Pu'er, Xishuangbanna, Lincang, Dehong, Baoshan, Dali area in the summer time with sufficient rainfall. To double rows of single-plant strip planting is appropriate; easy to early failure, pay attention to strengthen field management, to reasonable application of organic fertilizer agricultural pest control is the main; young tea plantations are strictly 3 stereotypes of pruning, adult tea garden every 2-3 years to deep pruning 1 time; fresh leaf picking should be fine picking, famous tea and high-quality tea raw materials combined, 5-7 days picking 1 time. Cold resistance, drought resistance in the prevention of low-temperature freezing and high-temperature drought.

长叶白毫 (Camellia sinensis var. assamica ‘Changye Baihao’). 杨亚军、杨月荣主编，2014. 《中国无性系茶树品种志》上海科学技术出版社，第242页。陈亮等. 2024.《中国茶树品种资源志（上卷）茶树登记品种》第608-609页：【申请者】云南省农业科学院茶叶研究所。【育种者】王海思；杜煊；王朝纪；李光涛；朱凤铭；邓少春；田易萍；徐丕忠；刘本英；陈春林；许燕。【品种编号】非主要农作物品种登记号：GPD茶树（2024)530003。原云南省农作物品种审定编号：滇茶4号。【品种来源】云南省农业科学院茶叶研究所从勐海‘南糯山群体’中单株选育而成。【特征特性】乔木型，大叶类，早生种。树姿开张，生长势强，分枝部位高，分枝稀。叶片向上着生，窄椭圆形，长14.1厘米，宽5.3厘米，叶绿色，先端尖锐。勐海地区开采期一般为3月中旬，一芽二叶盛期一般在3月中旬；发芽密度高，茸毛多；一芽三叶长9.5厘米，一芽三叶百芽重129.0克。盛花期为每年9月下旬。春茶一芽二叶生化样含茶多酚27.3%,氨基酸2.4%，咖啡碱2.2%，水浸出物44.4%。适制红茶和绿茶。制红茶，外形条索壮结、有金毫，汤色红、较明亮，香气高甜，滋味甘醇；制绿茶，外形肥嫩显芽、暗绿，汤色嫩绿清澈，香气清香带花香，滋味鲜浓。第一生长周期亩产一芽二叶鲜叶648千克，比对照‘大黑茶’增产1%；第二生长周期亩产708千克，比对照‘大黑茶’增产6%。抗炭疽病、云纹叶枯病、茶饼病，中抗小绿叶蝉，抗咖啡小爪螨，中抗蓟马，抗寒性和抗旱性中。【适宜种植区域及栽培技术要点】适宜在云南茶区普洱、西双版纳、临沧、德宏、保山、大理地区夏季雨水充足的时间种植。以双行单株条栽为宜；易早衰，注意加强田间管理，以合理施有机肥农业防治病虫害为主；幼龄茶园严格进行3次定型修剪，成龄茶园每隔2-3年要深修剪1次；鲜叶采摘宜细嫩采，名茶和优质茶原料结合，5-7天采摘1次。抗寒性、抗旱性中，预防低温冻害和高温旱害。