基于主成分分析法的15个秋石斛品种综合评价  

Comprehensive Evaluation of 15 Dendrobium hybridus Cultivars via Principal Component Analysis

作　　者：梁昕景 李香 符洁 邢艳冰 张孟锦 LIANG Xinjing;LI Xiang;FU Jie;XING Yanbing;ZHANG Mengjin(Sanya Academy of Forestry,Sanya,Hainan 572000,China)

机构地区：[1]三亚市林业科学研究院,海南三亚572000

出　　处：《热带农业科学》2025年第2期94-102,共9页Chinese Journal of Tropical Agriculture

基　　金：2024年三亚市财政项目“石斛兰花期调控及产业化技术研究”;海南省自然基金项目(No.322MS157)。

摘　　要：为了解誓言等15个秋石斛品种的形态学性状,利用主成分分析法对誓言等15个秋石斛品种进行观察和测量,并进行综合评价。结果表明,品种誓言的花朵最大,泼墨的最小;红霞的花序梗最长,水晶的最短;红金珠花序梗最粗,水晶的最细;贵妃的花梗最长,小男孩的最短;贵妃的花梗最粗,彩霞的最细;彩霞的单株花朵数最多;红金珠和泼墨的花色得分最高,金如意的最低。所测的大多数性状显著相关。22个形态学性状可以转化为6个主成分,主成分累计贡献率为83.97%,主成分综合得分排名第1的为誓言,其次为泼墨、小男孩。To understand the morphological characteristics,the morphological characteristics of 15 Dendrobium hybridus cultivars,e.g.,Shiyan,were observed and measured,and principal component analysis was used for comprehensive evaluation.The results revealed that the variety‘Shiyan’had the largest flowers and‘Enobi Purple Splash’had the smallest flowers.The inflorescence stem of‘Hongxia’is the longest,whereas the‘Crystal’stem is the shortest.The inflorescence stem of the‘Hongjinzhu’is the thickest,and‘Crystal’is the thinnest.The flower stalk of‘Guifei’is the longest,while that of‘Xiaonanhai’is the shortest.The flower stalk of‘Guifei’is the thickest,while‘Caixia’is the thinnest.‘Caixia’has the highest number of flowers per plant.The highest score is for the colors of‘Hongjinzhu’and‘Enobi Purple Splash’,whereas‘Jinruyi’had the lowest score.Most of the measured traits were significantly correlated.Twenty-two morphological characteristics can be transformed into six principal components,with a cumulative contribution rate of 83.97%.The variety with the highest overall principal component score is Shiyan,followed by‘Enobi Purple Splash’and Xiaonanhai.

关 键 词：秋石斛 品种 主成分分析 综合评价 

分 类 号：S682.31[农业科学—观赏园艺]