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园艺学报 ›› 2025, Vol. 52 ›› Issue (10): 2691-2702.doi: 10.16420/j.issn.0513-353x.2024-0873

• 遗传育种·种质资源·分子生物学 • 上一篇    下一篇

梯面镇古茶树种质资源调查及其性状研究

秦丹丹1, 方开星1, 王秋霜1, 王青1, 潘晨东1, 倪尔冬1, 冯韶芳1,3, 吴展红2, 吴华玲1,*()   

  1. 1 广东省农业科学院茶叶研究所,广东省茶树资源创新利用重点实验室,广州 510640
    2 广州市花都区梯面镇人民政府,广州 510870
    3 仲恺农业工程学院,广州 510550
  • 收稿日期:2025-03-07 修回日期:2025-07-21 出版日期:2025-10-25 发布日期:2025-10-28
  • 通讯作者:
  • 基金资助:
    广东省重点领域研发计划项目(2020B020220004); 广州市科技计划项目(2023B03J1036); 广州市科技计划项目(2025A04J5448); 广州市科技计划项目(2025D04J0097); 现代农业产业技术体系建设专项(CARS-19); 国家自然科学基金(32102127); 广东省农业农村厅乡村振兴战略专项资金种业振兴项目(2024-NBH-00-010); “广东特支计划” 科技创新青年拔尖人才项目(2021TQ06N134)

Investigation of Ancient Tea Germplasm Resources and Their Characters from Timian Town,Guangzhou

QIN Dandan1, FANG Kaixing1, WANG Qiushuang1, WANG Qing1, PAN Chendong1, NI Erdong1, FENG Shaofang1,3, WU Zhanhong2, WU Hualing1,*()   

  1. 1 Guangdong Key Laboratory of Tea Plant Resources Innovation & Utilization,Tea Research Institute,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China
    2 People’s Government of Timian Town,Huadu District,Guangzhou 510870,China
    3 Zhongkai University of Agriculture and Engineering,Guangzhou 510550,China
  • Received:2025-03-07 Revised:2025-07-21 Published:2025-10-25 Online:2025-10-28

摘要:

对广州花都区梯面镇古茶树的生态环境、生物学特征、生化特性、茶类试制性进行了系统调查及研究。结果发现,大部分古树呈聚集群落形式,群落间相聚较近,主要的茶树资源有毛叶茶(Camellia sinensis var. ptilophylla Chang)、清桂大叶[C. sinensis(L.)O. Kuntze]、广州小叶[C. sinensis(L.)O. Kuntze]和香花糙果茶(C. suaveolens)等,其中以毛叶茶的数量最多,保存最为完好。调查的150株代表性古茶树以乔木和小乔木为主,其中毛叶茶具有独特的形态学特征,如树冠高而瘦、芽叶茸毛满披、分枝较多、叶片革质化。叶片形态多样,从特大叶到小叶均有分布,叶脉、叶形及叶齿变异丰富。新梢嫩芽色泽和茸毛差异显著,多数资源开花结实力较差。叶片横切面结构显示上下表皮、栅栏组织和海绵组织厚度变异大,内含物茶多酚、生物碱及儿茶素组分含量丰富且具独特性,特别是毛叶茶的可可碱、非表型儿茶素含量显著较高。茶类试制性研究表明,毛叶茶适制白茶、红茶和黄茶;广州小叶和清桂大叶适制红茶和绿茶。

关键词: 茶树, 种质资源, 性状鉴评, 生化组分, 适制性

Abstract:

This study conducted a systematic investigation into their ecological environment,biological characteristics,biochemical composition,and processing suitability of ancient tea trees Tiamian Town in Huadu District,Guangzhou. The study reveals that most tea germplasm resources exist in the form of clustered communities,which are relatively close to each other. The major tea tree resources include Maoyecha(Camellia.sinensis var. ptilophylla Chang),Qinggui Daye[C. sinensis(L.)O. Kuntze],Guangzhou Xiaoye[C. sinensis(L.)O. Kuntze],and Xianghua Caoguocha(C. suaveolens),among which Maoyecha is the most abundant and well-preserved. Among the 150 representative ancient tea trees surveyed,the majority exhibited an arborous or small-arborous growth habit. Maoyecha displayed distinct morphological characteristics,including a tall and slender canopy,densely pubescent buds and leaves,extensive branching,and leathery leaves. Leaf morphology varied significantly,ranging from extra-large to small leaves,with considerable diversity in venation,shape,and serration patterns. The young shoots exhibited significant variations in coloration and pubescence,while most resources showed weak flowering and fruit-setting ability. Cross-sectional analysis of leaves revealed substantial variation in the thickness of the upper and lower epidermis,palisade tissue,and spongy tissue. Biochemical analysis indicated high and unique levels of tea polyphenols,alkaloids,and catechins,with Maoyecha exhibiting particularly high levels of theobromine and non-epicatechins. The processing suitability assessment demonstrated that Maoyecha is suitable for producing white tea,black tea,and yellow tea,whereas Guangzhou Xiaoye and Qinggui Daye are more suitable for black tea and green tea production.

Key words: tea plant, germplasm resource, trait evaluation, biochemical components, processing suitability