Guixiang 18

Guixiang 18. (C. sinensis). Yang Yajun and Liang Yuerong, 2014. Clone Cultivars of Tea in China. p.96.  Chen Liang et al. 2024. Records of Tea Cultivars and Resources of Chinese Tea resources (Volume I)-Registered Tea Cultivars. p.524-525: [Applicant] Guangxi Zhuang Autonomous Region Institute of Tea Science. [Breeder] Guangxi Zhuang Autonomous Region Tea Research Institute; Qin Xiuju; Qiu Yongjuan; Luo Xiaomei; Deng Huiqun; Chen Jia; Chen Xinqiang; He Jiandong; Lai Zhaorong; Lin Chaozhi; Liu Chusheng; Su Min; Gan Chunping. [Variety number] Non-major crop variety registration number: GPD Tea Tree (2023) 450067. former National Tea Tree Variety Appraisal Committee Appraisal number: National Pinjian Tea 2010009. [Variety origin] Selected by the Tea Research Institute of the Guangxi Zhuang Autonomous Region from a single plant of 'Lingyun Baimao Cha'. [Characteristics] Shrub type, large leaf type, medium bud tea tree variety. The tree posture is semi-open, strong growth potential, low branching site, dense branching. Leaf blade upward bearing, narrow oval, 9.3 cm long, 4.3 cm wide, leaf green, apex obtuse. The exploitation period in Guilin is generally in mid- to late March, and the full bloom period of one bud and two leaves is generally in late March; the germination density is high, with a lot of velvet; the length of one bud and three leaves is 9.6 centimeters, and the weight of one bud and three leaves in one hundred buds is 70.0 grams. The blooming period is in the middle and end of November every year. The biochemical sample of one bud and two leaves in spring contains 24.9% of tea polyphenols, 4.6% of amino acids, 3.9% of caffeine, and 48.2% of water leachate. Suitable for green tea, black tea and oolong tea. For green tea, the color of soup is bright yellow-green, the fragrance is high and persistent, and the taste is fresh; for black tea, the color of soup is red, the fragrance is high and pure, and the taste is strong and fresh; for oolong tea, the color of soup is yellow and bright, and the fragrance is pure and persistent, and the taste is strong and mellow and smooth. The first growth cycle mu yield 324 kg, than the control 'Fuding Dabaicha' yield 7%; the second growth cycle mu yield 368 kg, than the control 'Fuding Dabaicha', yield 3%. It is susceptible to tea anthracnose, resistant to tea leafhopper, strong drought and cold resistance. [Suitable for planting area and cultivation technology points] Suitable for planting in Guangxi, Sichuan, Fujian tea area in the spring. Seedlings 5000 per mu, seedling period growth is slow, should strengthen the fertilization management of young tea plantations, planting the first year of fertilizer and water, and then the whole year to the application of organic fertilizers, fertilizers 4 times a year in the productive period. Picking standards for a bud of one leaf or a bud of two leaves is appropriate. The variety is a large leaf species, dense branching, vigorous growth, high temperature and high humidity period prone to pests and diseases, should be carried out in a timely manner at the end of the annual spring tea picking a light pruning, in order to improve the ventilation and light transmission rate between the tea rows and the picking of the surface of the canopy.

桂香18号 (Camellia sinensis var. pubilimba Chang ‘Guixiang 18’). 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96页。陈亮等. 2024.《中国茶树品种资源志（上卷）茶树登记品种》第524-525页：【申请者】广西壮族自治区茶叶科学研究所。【育种者】广西壮族自治区茶叶科学研究所；覃秀菊；邱勇娟；罗小梅；邓慧群；陈佳；陈新强；何建栋；赖兆荣；林朝赐；刘初生；苏敏；甘春萍。【品种编号】非主要农作物品种登记编号：GPD茶树（2023)450067。原全国茶树品种鉴定委员会鉴定编号：国品鉴茶2010009。【品种来源】广西壮族自治区茶叶科学研究所从‘凌云白毛茶’中单株选育而成。【特征特性】灌木型，大叶类，中芽茶树品种。树姿半开张，生长势强，分枝部位低，分枝密。叶片向上着生，窄椭圆形，长9.3厘米，宽4.3厘米，叶绿色，先端钝。桂林地区开采期一般为3月中下旬，一芽二叶盛期一般在3月下旬；发芽密度高，茸毛多；一芽三叶长9.6厘米，一芽三叶百芽重70.0克。盛花期为每年11月中下旬。春季一芽二叶生化样含茶多酚24.9%，氨基酸4.6%，咖啡碱3.9%，水浸出物48.2%。适制绿茶、红茶和乌龙茶。制绿茶，汤色黄绿明亮，花香高锐持久，滋味鲜爽；制红茶，汤色红亮，香气高纯，滋味浓鲜；制乌龙茶，汤色黄亮，花香纯正持久，滋味浓醇滑口。第一生长周期亩产324千克，比对照‘福鼎大白茶’减产7%；第二生长周期亩产368千克，比对照‘福鼎大白茶’，减产3%。感茶炭疽病，抗茶小绿叶蝉，抗旱性和抗寒性强。【适宜种植区域及栽培技术要点】适宜在广西、四川、福建茶区春季种植。每亩用苗5000株，幼苗期生长慢，应加强幼龄茶园的肥水管理，种植第一年宜施肥水，以后全年以施有机肥为主，丰产期全年施肥4次。采摘标准为一芽一叶或一芽二叶为宜。该品种属大叶种，分枝密，长势旺盛，高温高湿时期易发生病虫为害，应在每年的春茶采摘结束时及时进行一次轻修剪，以提高茶行间及采摘蓬面的通风透光率。