海拔及环境因子影响杜鹃属植物的表型特征和化学性状
姚仁秀, 陈燕, 吕晓琴, 王江湖, 杨付军, 王晓月

Altitude-related environmental factors shape the phenotypic characteristics and chemical profile of Rhododendron
Renxiu Yao, Yan Chen, Xiaoqin Lü, Jianghu Wang, Fujun Yang, Xiaoyue Wang
图4 不同海拔杜鹃的10个表型特征和5种次生代谢物含量的主成分分析(PCA)
Fig. 4 Principal component analysis (PCA) of ten phenotypic characteristics and five secondary material components (flavonoid, steroid, terpenoid, phenylpropanoid and alkaloid) of Rhododendron at different altitudes