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中文摘要：
目的：对艾纳香主要形态指标及其相互关系进行研究,为优良种质选育提供参考依据。方法：通过19个形态指标比较及其相关性分析、因子分析和回归分析,研究形态指标的相互关系。结果：艾纳香各形态指标均存在较丰富的变异,不同种质间差异较大;各形态指标间具有一定相关性,多个形态指标间的相关性达到显著或极显著水平。因子分析将19个形态指标归属于6个主因子。叶形指数、主干粗、二级分支叶片数、一级分枝叶片数、主干叶片数、健壮叶片重、幼嫩叶片重、老叶片重、一级分枝数、株叶片数等10个形态指标是影响单株叶片总重的主要因子。结论：艾纳香各形态指标均存在丰富的变异,各形态指标间具有一定相关性,叶形指数、主干粗、一级分枝数、各类叶片数、各类叶片重等形态指标是影响单株叶片总重的主要因子。
英文摘要：
Objective： To investigate the main morphological characters and interrelationship of Blumea bdsamifera,and to provide the guidance for selection and breeding of Blumea balsamifera. Methods： 19 main morphological characters and their interrelationship were analyzed by using correlation analysis,multiple stepwise regression analysis and factor analysis. Results： Variation coefficients of the morphological characters were big in Blumea balsamifera. Correlation coefficients for morphological characters were significant（ P 0. 05 or P 0. 01）. Using factor analysis,19 morphological characters were classified into six principal divisors. Ten morphological characters,including length / wide of leaf,trunk diameter,leaf number of second branch,leaf number of first branch,number of trunk leaf,weight of strong leaf,weight of young leaf,weight of old leaf,number of first branch,leaf number of whole plant,were the main factors which influenced the weight of whole plant leaf. Conclusion： The variation of every morphological character of Blumea balsamifera is abundant in different population,and a certain correlation is existed among morphological characters. The morphological characters,length / wide of leaf,trunk diameter,number of first branch,number and weight of leaf,are the main factors which influenced the weight of whole plant leaf.
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