title: [Analysis on yield and quality of different Houttuynia cordata].
abstract: OBJECTIVE
  To study the yield of different Houttuynia cordata and the changing regularity of their main officinal components in different periods, and provide a basis for harvesting in good time and breeding new varieties.
  
  
  METHODS
  The main officinal composition and wet weight of overground parts per acreage of different accessions were determined periodically. The plot yields were tested when harvested and analyzed by analysis of variance.
  
  
  RESULTS
  The difference of the yields of different accessions was significant. The varying tendency of the content of main officinal component methyl nonyl ketone and its total content per acreage of different accessions were different.
  
  
  CONCLUSIONS
  The integrate characters of Qionglai and Wangyu wild accessions are relatively better, worthy to be widely applied in production.
authors.affiliation: Agronomy College, Sichuan Agricultural University, Yaan 625014, Sichuan, China. ewuwei@163.net
authors.forename: Wei
authors.initials: W
authors.lastname: Wu
authors.forename: You-liang
authors.initials: YL
authors.lastname: Zheng
authors.forename: Yong
authors.initials: Y
authors.lastname: Ma
authors.forename: Rui-wu
authors.initials: RW
authors.lastname: Yang
authors.forename: Jin-xi
authors.initials: JX
authors.lastname: Zhong
authors.forename: Fang-wei
authors.initials: FW
authors.lastname: Ren
authors.forename: Tian-cheng
authors.initials: TC
authors.lastname: Liu
mesh_terms: D002681:China; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D017753:Ecosystem; D052859:Houttuynia; D035261:Plant Components, Aerial / Q000737:chemistry; D010946:Plants, Medicinal / Q000033:anatomy & histology / Q000737:chemistry / Q000254:growth & development; D032134:Saururaceae / Q000033:anatomy & histology / Q000737:chemistry / Q000254:growth & development; D012621:Seasons; D013045:Species Specificity
chemical_list: D004365:Drugs, Chinese Herbal; C442781:Houttuynia cordata extract