为了研究大花金鸡菊Coreopsis grandiflora,黑心菊Rudbeckia hirta和万寿菊Tagetes erecta香气成分的差异,从植物香气角度为3种菊科植物的园林配置提供理论依据,实验采用热脱附气质联用技术对3种菊科植物进行香气成分的分析.结果表明:从大花金鸡菊中鉴定出55种成分,主要为:α-蒎烯(相对含量23.43%),柠檬烯(22.75%),水芹烯(4.37%),桧烯(3.78%)和月桂烯(3.56%);从黑心菊中鉴定出51种成分,主要为:水芹烯(31.36%),顺-氧化芳樟醇(11.88%),桧稀(9.54%),壬醛(6.52%)和辛醛(5.08%);从万寿菊中鉴定出30种成分,主要为:萜品油烯(23.63%),罗勒烯(22.40%),柠檬烯(16.12%),石竹烯(6.36%)和反-罗勒烯(3.50%).因此,香气成分及其相对含量的差异决定了3种菊科植物的香气表现.%In order to make clear the aromatic composition of the landscape plants and provide a theoretical basis on obtaining a reasonable distribution for landscape, we analyzed the aromatic composition and content in Coreopsis grandiflora, Rudbeckia hirta, and Tagetes erecta under near-natural conditions using the thermal desorption system gas chromatography/mass spectrometer technique (TDS-GC/MS). Results showed that the major aromatic composition were as follows: o-pinene (relative content of 23.43％), D-limonene (22.75％),phellandrene (4.37％), sabinen (3.78％), and myrcene (3.56％) in C. grandiflora; phellandrene (31.36％),cis-linalool oxide ( 11.88％ ), sabinen (9.54％), nonanal (6.52％), and octanal (5.08％) in Rudbeckia hirta;and terpinolene (23.63％), ocimene (22.40％), D-limonene (16.12％), caryophyllene (6.36％), and transocimene(3.50％) in Tagetes erecta. Thus, different aromatic compositions and their relative content determined the aromas of the three plants.
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