title: [Study on selective breeding of medicinal Chrysanthemum morifolium].
abstract: OBJECTIVE
  To investigate botanical characters and yield of four cultivars of Chrysanthemum morifolium for further study on their genetic diversity and selective breeding.
  
  
  METHODS
  The characters were observed and yield was investigated by field randomized block and analysis of variance.
  
  
  CONCLUSIONS
  The botanical characters are difference among four cultivars; the amount of single flower head is the main factor influencing on the output of Chrysanthemum morifolium (r = 0.925); the yield of "Hongxinju" and "Xiaobaiju" are remarkably higher than that of "Dabaiju" and "Changbanju".
authors.affiliation: Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China. guoqs@herbstimes.com
authors.forename: Qiao-Sheng
authors.initials: QS
authors.lastname: Guo
authors.forename: Xian-Yuan
authors.initials: XY
authors.lastname: He
authors.forename: Li
authors.initials: L
authors.lastname: Liu
authors.forename: Wen-Bin
authors.initials: WB
authors.lastname: Xu
authors.forename: Jian-Guo
authors.initials: JG
authors.lastname: Hu
authors.forename: Yu-Xin
authors.initials: YX
authors.lastname: Cai
mesh_terms: D001947:Breeding; D031202:Chrysanthemum / Q000033:anatomy & histology / Q000235:genetics / Q000254:growth & development*; D014644:Genetic Variation; D010946:Plants, Medicinal / Q000033:anatomy & histology / Q000235:genetics / Q000254:growth & development*; D012641:Selection, Genetic