适宜机采优质绿茶新品种中茶503选育报告OA
Breeding Report of the Machine-picking Suitable Green Tea Cultivar'Zhongcha 503'
中茶503是从中茶108种子后代采用单株选择经系统选育而成的适宜机采的茶树新品种.经系统品系比较试验、机采适宜性鉴定试验表明,中茶503属特早生种,产量中等.制烘青绿茶,干茶细紧卷曲、显毫、绿翠鲜活,汤色嫩绿明亮,香气高鲜、栗香显,滋味甘醇鲜爽,叶底嫩匀显芽、明亮.内含物质丰富,春季一芽二叶3年平均水浸出物含量达46.4%,茶多酚含量13.7%,氨基酸含量5.2%,咖啡碱含量2.7%.抗寒抗旱性强,茶炭疽病抗性表现为感(S)、茶小绿叶蝉抗性表现为高感(HS).新梢、最下节节间长,机采后优质芽叶一芽二三叶占比、新梢完整率高.中茶503于2022年10月通过非主要农作物品种登记,编号:GPD茶树(2022)330053.
'Zhongcha 503'is a new tea cultivar suitable for machine-picking,which is bred by systematic selection of individual plants from the descendants of'Zhongcha108'.The strain comparison,regional tests and machine-pick-ing suitability tests show that'Zhongcha 503'is a very early sprouting and high yield cultivar.The green tea made from'Zhongcha 503'was tightly knotted,fine hair and vivid,bright green soup color and high aroma,a taste of fresh and mellow and soft indigo leaf base.It had abundant components.The water extract,tea polyphenol,amino acid and caffeine content of one bud and two leaves were 46.4%,13.7%,5.2%and 2.7%respectively.It showed high tolerance to cold,drought and anthracnose(R),sensitive to tea green leafhopper(S).It had a long internode in young shoots and showed a high percent of intact bud,one bud and two to three leaves after machine-picking.'Zhongcha 503'passed the non-major crop cultivar registration in Oct.2020,with the registration number of GPD tea(2022)330053.
章志芳;曾建明;杨亚军;王新超;王璐;郝心愿;李小恋
中国农业科学院茶叶研究所,浙江 杭州 310008
农业科学
中茶503新品种机采
Zhongcha 503new cultivarmachine picking
《中国茶叶》 2024 (005)
48-53 / 6
浙江省农业茶树新品种选育重大科技专项(2021C02067-3)、成都农业科技中心地方财政专项资金(NASC2019TI08)、中国农业科学院科技创新工程项目(CAAS-ASTIP-TRICAAS)
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