Abstract: Under different shading treatments, the growth, contents of water and chlorophyll in leaves, and ratio of leaf dry weight to leaf area of 13 species of palm trees were studied. By system cluster analysis and principal factor analysis, 13 species of palm trees were classified into three levels of shade tolerance. The species with strong tolerance to shade included Chamaedorea cataractarum, Chuniophoenix nana and Dypsis lutescens, the medium ones included Caryota mitis, Chamaedorea elegans, Chamaedorea seifrizii, Licuala fordiana, Livistona chinensis and Rhapis exelsa, and the weak ones included Archontophoehix alexandrae, Howea forsteriana, Phoenix roebelenii and Ravenea rivularis.

Key words: palm tree, shading, growth, shade tolerance

摘要： 研究13种盆栽棕榈植物在不同遮荫处理条件下的生长、叶片叶绿素含量、含水量及比叶重的变化,并通过系统聚类分析及主分量分析,将13种棕榈植物的耐阴性分为三类,其中缨络椰子、散尾葵和小琼棕较耐阴,国王椰子、假槟榔、金帝葵和美丽针葵耐阴性较差,短穗鱼尾葵、袖珍椰子、雪佛里椰子、穗花轴榈、蒲葵和棕竹等棕榈植物耐阴性居中。

关键词: 棕榈植物, 遮荫, 生长, 耐阴性