山茶属12种植物的功能性状差异性及聚类分析  

Analysis of Differences in the Functional Traits of 12 Camellia Species

作　　者：张皖 姜冬冬 蒙检 李嘉亮 罗应华[1] ZHANG Wan;JIANG Dongdong;MENG Jian;LI Jialiang;LUO Yinghua(Forestry College of Guangxi University,Nanning,Guangxi 530004,China)

机构地区：[1]广西大学林学院,广西南宁530004

出　　处：《热带农业科学》2024年第2期38-44,共7页Chinese Journal of Tropical Agriculture

摘　　要：以南宁市金花茶公园人工种植的12种山茶属植物为研究对象,测定叶和小枝的功能性状,并进行变异系数、差异性和聚类分析。结果表明,柠檬黄金花茶的9个功能性状变异系数小于其余植物,最为稳定;越南抱茎茶的6个功能性状变异系数大于其余植物,性状可塑性高;黄抱茎金花茶功能性状变异程度与其他10种金花茶接近。主成分分析表明,可以利用“总叶面积、总叶片鲜重、总叶片干重、茎鲜重”性状组合进行山茶属植物分类。聚类分析显示,12种植物可分为两大类:黄抱茎金花茶1种为一类,其余11种植物为一类;显脉金花茶与越南抱茎茶聚为一类,其余9种金花茶植物为一类;崇左金花茶和柠檬黄金花茶为一类,余下的7种金花茶中,小花金花茶、凹脉金花茶、毛籽金花茶最易聚为一类。越南特有种黄抱茎金花茶与中国特有种、中越都有分布的共有种在功能性状上存在较大差异,主要体现在表型性状上,在叶干物质含量、茎干物质含量、茎组织密度、出叶强度、比叶面积性状上不存在显著差异。The functional traits of 12 Camellia species planted artificially in Nanning Golden Camellia Park were investi-gated in this study.The variation coefficients,difference,and cluster analysis results were obtained for leaf and twig functional traits.The results showed that the coefficients of variation for nine functional traits of C.limonia C.F.Liang et S.L.Mo were the smallest compared to those of other species and the most stable;they had less variability in functional traits.The coeffi-cient of variation of six functional traits of C.amplexicaulis(Pit.)Cohen-Stuart was the largest compared to the other species.The functional traits of C.amplexicaulis(Pit.)Cohen-Stuart was highly malleable.The degree of functional trait variation of C.murauchii Ninh et Hakoda was close to that of the other ten yellow Camellia species.The clustering analysis of plant func-tional traits revealed that the combination of total leaf area,fresh leaf weight,total leaf dry weight,and fresh stem weight could be used for Camellia plant classification.The cluster analysis showed that the 12 Camellia species could be divided into two prime groups.The C.murauchii Ninh et Hakoda was in one class by itself,and the remaining 11 plants were in another cluster.C.euphlebia Merr.et Sealy and C.amplexicaulis(Pit.)Cohen-Stuart gathered into a cluster.Nine species of yellow Camellia belonged to the same cluster.Among the nine species of yellow Camellia,C.perpetua S.Y.Liang et L.D.Huang and C.limonia C.F.Liang et S.L.Mo belonged to the same cluster.C.micrantha S.Y.Liang et Y.C.Zhong,C.impressiner-vis H.T.Chang et S.Y.Liang and C.ptilosperma S.Y.Liang et Q.D.Chen were most easily assigned to one category.Multi-ple comparisons revealed many differences in functional traits between C.murauchii Ninh et Hakoda and the Chinese endemic species of yellow Camellia and the yellow Camellia species distributed in China and Vietnam.These differences were mainly in phenotypic traits.There were no significant differences among the leaf dry matter content,stem dry mat

关 键 词：金花茶 功能性状 聚类分析 

分 类 号：S685.14[农业科学—观赏园艺]