title: [Comparative study on internal quality of various Chrysanthemum morifolium].
abstract: OBJECTIVE
  To study the quality and genetic diversity of Chrysanthemun morifolium, the chemical constituents of 20 medicinal chrysanthemum cultivars in China were compared.
  
  
  METHODS
  Chemical constituents of the 20 cultivars were compared in three types of index: chlorogenic acid, flavonoid and volatile oil.
  
  
  RESULTS
  There are visible differences on the contents of chlorogenic acid, flavonoid and volatile oil between the cultivars.
  
  
  CONCLUSIONS
  Each cultivar has its own internal quality, and it is affected by many factors. The chemical constituents of the cultivars showed the genetic diversity in medicinal chrysanthemums of China.
authors.affiliation: Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China.
authors.forename: Wen-bin
authors.initials: WB
authors.lastname: Xu
authors.forename: Qiao-sheng
authors.initials: QS
authors.lastname: Guo
authors.forename: Yan-nong
authors.initials: YN
authors.lastname: Li
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
mesh_terms: D002681:China; D002726:Chlorogenic Acid / Q000032:analysis*; D031202:Chrysanthemum / Q000737:chemistry* / Q000145:classification / Q000235:genetics; D017753:Ecosystem; D005419:Flavonoids / Q000032:analysis*; D035264:Flowers / Q000737:chemistry; D014644:Genetic Variation; D009822:Oils, Volatile / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry* / Q000145:classification / Q000235:genetics
chemical_list: D005419:Flavonoids; D009822:Oils, Volatile; D002726:Chlorogenic Acid