河南农业科学 ›› 2022, Vol. 51 ›› Issue (12): 45-52.DOI: 10.15933/j.cnki.1004-3268.2022.12.006

• 作物栽培·遗传育种 • 上一篇    下一篇

茶树种苗质量评价与壮苗指数构建

王雪萍,高士伟,叶飞,滕靖,桂安辉,郑鹏程   

  1. (湖北省农业科学院果树茶叶研究所/湖北省茶叶工程技术研究中心,湖北 武汉 430064)
  • 收稿日期:2022-07-19 出版日期:2022-12-15 发布日期:2023-01-17
  • 通讯作者: 郑鹏程(1985-),男,安徽池州人,副研究员,硕士,主要从事茶叶加工及综合利用技术研究。E-mail:zpct@hbaas.com
  • 作者简介:王雪萍(1979-),女,四川彭州人,副研究员,硕士,主要从事茶树栽培及茶叶加工技术研究。E-mail:wangxueping@hbaas.com
  • 基金资助:
    国家重点研发计划项目(2021YFD1601103);湖北省重点研发计划项目(2020BBA038);湖北省农业科技创新中心创新团队项目(2021-620-000-001-024)

Quality Evaluation and Construction of Seedling Index of Tea Seedlings

WANG Xueping,GAO Shiwei,YE Fei,TENG Jing,GUI Anhui,ZHENG Pengcheng   

  1. (Hubei Tea Engineering and Technology Research Centre/Institute of Fruit and Tea,Hubei Academy of Agricultural
    Sciences,Wuhan 430064,China)
  • Received:2022-07-19 Published:2022-12-15 Online:2023-01-17

摘要: 为科学、简便评价茶树种苗质量,以生长200 d的鄂茶1号容器扦插苗为试验材料,采用加权模糊综合评价法构建种苗质量综合评价指数,通过主成分分析和相关性分析构建和筛选壮苗指数,并采用3个茶树品种(鄂茶1号、中茶108和金观音)对筛选的壮苗指数进行稳定性评价。结果表明,300株茶树种苗质量综合评价指数为0.401~0.968,主成分分析将17个指标分为地上部指标、地下部指标及色素指标,从每个主成分中选择贡献较大的3个指标组成27个壮苗指数,通过相关性分析筛选出与综合评价指数相关性较大的4个壮苗指数,其中,地上部干质量×地下部干质量×叶绿素a含量在3个茶树品种上相关系数均最大,可作为茶树种苗质量评价的壮苗指数。以综合评价指数为种苗质量分级依据,根据筛选的壮苗指数,将种苗质量分为3个等级:优质苗(壮苗指数为0.242~1.089)、合格苗(壮苗指数为0.064~0.239)、弱苗(壮苗指数为0.011~0.063),各等级间差异显著。

关键词: 茶树, 种苗质量评价, 壮苗指数, 加权模糊综合评价, 主成分分析, 相关性分析

Abstract: In order to scientifically and conveniently evaluate the quality of tea seedlings,300 container seedlings of 200‑day old Echa No.1 were taken as materials,the comprehensive evaluation index of tea seedlings was constructed by weighted fuzzy comprehensive evaluation method,the seedling index was constructed by principal component analysis method and correlation analysis method,and three tea varieties(Echa No.1,Zhongcha 108 and Jinguanyin)were used to evaluate the stability of the screened seedling index.The results showed that the comprehensive evaluation index of 300 tea seedlings ranged from 0.401 to 0.968.The 17 individual indices of tea container seedlings were classified into three principal components,including underground part indicators,aboveground part indicators and pigment indicators.Twenty‑seven seedling indexes were combined by selecting three indices with great contribution to each principal component.Four seedling indexes were screened out by correlation analysis due to high correlation with the comprehensive evaluation index.Among them,dry weight of aboveground part×dry weight of underground part×chlorophyll a content had the highest correlation coefficient for different varieties of tea seedlings,which could be used as seedling index to evaluate the quality of tea container seedlings.According to the comprehensive evaluation index and seedling index,the quality of tea seedlings were classified into three grades:high‑quality seedlings with seedling index of 0.242—1.089,qualified seedlings with seedling index of 0.064—0.239,and weak seedlings with seedling index of 0.011—0.063. There was significant difference among the above three grades.



Key words: Tea, Quality evaluation of seedling, Seedling index, Weighted fuzzy comprehensive evaluation, Principal component analysis, Correlation analysis

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