title: [Habitat survey and biological characteristics study of Polygonum multiflorum germplasms in Guizhou region].
abstract: OBJECTIVE
  To provide reference in selecting premium provenance and improve the cultivation techniques of Polygonum multiflorum.
  
  
  METHODS
  Field survey, routine field-observation and sampling fixed plant for analysis in lab were adopted.
  
  
  RESULTS
  The growing adaptability of Polygonum multiflorum was very strong, which growed flourishly in the condition with adequate light, ample rainfall, rich heat and fertile soil; Along with the lower of latitude, the vegetative period was prolonged and reproductive stage was delayed, which prolonged the time of roots' nutrition acquisition. Time for root shoot ratio increasing continuously of low latitude germplasms was higher than that of higher latitude germplasms.
  
  
  CONCLUSIONS
  Polygonum multiflorum germplasms have different biological characteristics because of different regions and habitats, which can provide useful reference for selecting premium provenance and adjusting measures to local conditions in different areas.
authors.affiliation: Guizhou Key (Engineering) Laboratory of Propagation and Cultivation on Medicinal Plant, Guiyang 550025, China. agr.hcliu@gzu.edu.cn
authors.forename: Hong-Chang
authors.initials: HC
authors.lastname: Liu
authors.affiliation: Guizhou Key (Engineering) Laboratory of Propagation and Cultivation on Medicinal Plant, Guiyang 550025, China.
authors.forename: Chun-Li
authors.initials: CL
authors.lastname: Luo
authors.affiliation: Guizhou Key (Engineering) Laboratory of Propagation and Cultivation on Medicinal Plant, Guiyang 550025, China.
authors.forename: Jin-Ling
authors.initials: JL
authors.lastname: Li
authors.affiliation: Guizhou Key (Engineering) Laboratory of Propagation and Cultivation on Medicinal Plant, Guiyang 550025, China.
authors.forename: Hua-Lei
authors.initials: HL
authors.lastname: Wang
authors.affiliation: Guizhou Key (Engineering) Laboratory of Propagation and Cultivation on Medicinal Plant, Guiyang 550025, China.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Zhao
mesh_terms: D000531:Altitude; D002681:China; D017753:Ecosystem; D018517:Plant Roots / Q000254:growth & development; D018547:Plant Stems / Q000254:growth & development; D010946:Plants, Medicinal / Q000254:growth & development / Q000502:physiology*; D028502:Polygonum / Q000254:growth & development / Q000502:physiology*; D012621:Seasons; D012987:Soil; D014887:Weather
chemical_list: D012987:Soil