The color,petaline type and application value of 21 typical Bougainvillea varieties selected in Xiamen Wanshi Botanic Garden were observed and analysed in combination with consulting document literature,then 14 representative traits were defined as the evaluation indices,and the AHP analytic hierarchy model and comprehensive evaluation system of Bougainvillea were established.Accordingly,the variety classification could be made and it was possible to select the high-potential ones for extension.It was showed that the top three of the evaluation indices were flower color,leaf color and number of flowers with a weight value of 0.261 4,0.166 8 and 0.156 7 respectively,which had the biggest contribution to the evaluation system,and florescence,persistent period and size of bracts,twisting degree of leaf edge,growth potential and habit were also more than 0.080 0.Thus,three high-quality species with stronger ornamental and better ecology function were selected out,with scores of more than 7.00 and ‘Diguoxiyue’ is the superlatives.%在查阅资料的基础上,对从厦门万石园林植物园中筛选出的21个具有代表性的三角梅品种的花色、瓣型和应用价值等进行了观测与分析,确立了14个代表性状作为评价指标,构建了AHP层次分析模型,建立了三角梅观赏性状综合评价体系,并据此对品种进行分级,筛选推广潜力较高的品种.结果表明:在14个评价指标中,排在前3位的花色、叶片色泽、花量的权重值分别为0.261 4、0.166 8和0.156 7,对评价体系贡献最大;花期早晚、苞片宿存时间、苞片大小、叶边缘波折程度、生长势和生长习性等指标权重值也较高(均在0.080 0之上),采用该评价体系从植物园中共筛选出优质的三角梅3种,其得分值均在7以上,观赏性强及生态功能佳,‘帝国喜悦’为综合评价最佳者.
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