摘要
为建立茶树容器苗质量分级标准,观察并测量7月龄茶树种苗的苗高、茎粗、着叶数等质量指标,分别采用平均值±标准差、K-均值聚类、逐步聚类、主成分分析K-均值聚类法进行质量分级,以不同级别种苗成活率为指标评价不同分级方法。结果表明,聚类法比平均数±标准差法更适宜茶树容器苗质量分级,综合不同方法分析结果,初步制定茶树容器苗质量分级标准,其中,Ⅰ级苗:苗高≥13.0 cm,茎粗≥1.70 mm,着叶数≥7片;Ⅱ级苗:13.0 cm>苗高≥10.0 cm,1.70>茎粗≥1.50 mm,7片>着叶数≥5片。
To establish the quality grading standard of tea(Camellia sinensis)container cottage seedings,seeding height,stem diameter and leaf number of 7-month-old Camellia sinensis container cottage seedings were observed and measured.The mean±standard deviation,K-means clustering,stepwise clustering and principal component evaluation factor K-means clustering were used to classify the quality.The different classification methods were evaluated with different levels of seedling survival rate as indicators.The results showed that the clustering method was more suitable for the quality classification of Camellia sinensis container seedlings than the mean±standard deviation method.Based on the results of different analysis methods,the quality grading standard of tea container cutting seedlings was preliminarily formulated.The standard for gradeⅠ:seedling height≥13.0 cm,stem diameter≥1.70 mm,leaf number≥7.0;gradeⅡ:10.0 cm≤seedling height<13.0 cm,1.50 mm≤stem diameter<1.70 mm,5≤leaf number<7.0.
作者
王雪萍
叶飞
王胜鹏
滕靖
刘盼盼
唐海燕
冯琳
桂安辉
薛金金
高士伟
郑鹏程
WANG Xueping;YE Fei;WANG Shengpeng;TENG Jing;LIU Panpan;TANG Haiyan;FENG Lin;GUI Anhui;XUE Jinjin;GAO Shiwei;ZHENG Pengcheng(Hubei Tea Engineering and Technology Research Centre/Institute of Fruit and Tea,Hubei Academy of Agricultural Sciences,Wuhan 430064,China;School of Bioengineering,Hubei Vocational College of Bio-Technology,Wuhan 430070,China)
出处
《种子》
北大核心
2023年第11期112-116,共5页
Seed
基金
国家重点研发计划项目(2021YFD1601103)
湖北省重点研发计划项目(2021BBA242)
湖北省农业科技创新中心创新团队项目(2021-620-000-001-024)。
关键词
茶树
容器苗
质量分级
Camellia sinensis
container cottage seeding
quality grade
作者简介
王雪萍(1979-),女(汉族),四川人,硕士,副研究员,主要从事茶树栽培及茶叶加工技术研究,E-mail:wangxueping@hbaas.com;通讯作者:郑鹏程(1985-),男(汉族),安徽人,博士,副研究员,主要从事茶叶加工及综合利用技术研究,E-mail:zpct@hbaas.com。
