浙江农业学报 ›› 2021, Vol. 33 ›› Issue (2): 298-307.DOI: 10.3969/j.issn.1004-1524.2021.02.13

• 园艺科学 • 上一篇    下一篇

17份黄金菊茶树自然杂交单株的表型变异与资源价值评价

王治会1,2(), 彭华1,2, 杨普香1,2,*(), 江新凤1,2, 李文金1,2, 岳翠男1,2, 李琛, 李延升1,2   

  1. 1.江西省蚕桑茶叶研究所/江西省茶叶质量与安全控制重点实验室,江西 南昌 330202
    2.江西省经济作物研究所,江西 南昌 330202
  • 收稿日期:2020-08-26 出版日期:2021-02-25 发布日期:2021-02-25
  • 通讯作者: 杨普香
  • 作者简介:杨普香,E-mail: jxypx@163.com
    王治会(1992—),男,河南驻马店人,硕士研究生,助理研究员,主要从事茶树资源开发利用研究。E-mail: 1246900265@qq.com
  • 基金资助:
    江西省现代农业产业技术体系建设专项(JXARS-02);国家现代产业技术体系(CARS-19);江西省茶叶质量与安全控制重点实验室项目(20192BCD40007);江西省重点研发计划(20202BBF63004)

Phenotypic variation and resource value evaluation of natural hybrid progenies of seventeen Huangjinju tea plants

WANG Zhihui1,2(), PENG Hua1,2, YANG Puxiang1,2,*(), JIANG Xinfeng1,2, LI Wenjin1,2, YUE Cuinan1,2, LI Chen, LI Yansheng1,2   

  1. 1. Jiangxi Sericulture and Tea Research Institute/Key Laboratory of Tea Quality and Safety Control in Jiangxi Province, Nanchang 330202, China
    2. Jiangxi Economic Crop Research Institute, Nanchang 330202, China
  • Received:2020-08-26 Online:2021-02-25 Published:2021-02-25
  • Contact: YANG Puxiang

摘要:

黄化茶树品种黄金菊自然杂交后代的表型性状差异大,为探究其表型变异与多样性,从中筛选优异单株。以17份黄金菊自然杂交后代单株为材料,分析其23项表型性状的变异与多样性,从中筛选表型优良单株,最终利用主成分分析进行生化品质评价。结果表明:17份黄金菊自然杂交后代的描述型性状变异系数范围为0~57.23%,均值为33.88%,多样性指数范围为0~1.78,均值为0.81;其中树型与树姿未发生变异,芽叶色泽变异最大;数量型性状变异系数范围为10.33%~19.82%,均值为14.68%;多样性指数范围为1.14~1.95,均值为1.75。自然杂交显著提高了部分单株的游离氨基酸和简单儿茶素含量,显著降低了茶多酚、总儿茶素、酯型儿茶素含量。咖啡碱含量在各表型优良单株中无显著性差异。利用主成分分析筛选出了5份表型与生化品质较好的单株,其中HJJ-12和HJJ-1芽叶为绿色,HJJ-7和HJJ-11芽叶为黄色,HJJ-17芽叶为紫色。

关键词: 茶树, 黄金菊, 杂交后代, 表型, 变异系数, 多样性指数

Abstract:

The phenotypic characters of natural hybrids of yellow tea variety Huangjinju are different, in order to explore the phenotypic variation and diversity of them, excellent individual plants were screened. The variation and diversity of 23 phenotypic traits of 17 individuals from natural hybrid progenies were analyzed, and excellent phenotypic plants were screened, and the biochemical quality was evaluated by principal component analysis. The results showed that the variation coefficient of descriptive characters of natural hybrids ranged from 0 to 57.23%, with an average value of 33.88%. The diversity index ranged from 0 to 1.78, with an average of 0.81; Among them, there were no variation in tree type and tree posture, and the color variation of bud and leaf was the largest; The variation coefficient of quantitative traits ranged from 10.33% to 19.82%, with an average of 14.68%. The diversity index ranged from 1.14 to 1.95, with an average of 1.75. The contents of free amino acids and simple catechins of some individual plants were significantly increased by natural hybridization, while the contents of tea polyphenols, total catechins and ester catechins were significantly decreased. There was no significant difference in caffeine among the excellent phenotypic plants (P>0.05). Finally, five plants with better phenotypic and biochemical quality were selected by principal component analysis, the buds of HJJ-12 and HJJ-1 were green, those of HJJ-7 and HJJ-11 were yellow, and that of HJJ-17 was purple.

Key words: tea plant, Huangjinju, hybrid offspring, phenotype, coefficient of variation, diversity index

中图分类号: