title: [Study on wild germplasm resoures of Begonia fimbristipula in Dinghu District, Zhaoqing City, Guangdong Province].
abstract: OBJECTIVE
  A systematical investigation on the distribution of wild germplasm of Regonia fimbristipula in Dinghu District, Zhaoqing City, Guangdong Province was conducted at 8 sites.
  
  
  METHODS
  Field quadrat survey method was carried out.
  
  
  RESULTS
  Begonia fimbristipula had obvious phenotypical plasticity showing three phenotypes with red, green and bicolor leaf, respectively. Its populations lived in the ecological environment of rock. The growth and building of Begonia fimbristipula population were mutually influenced by many ecological factors such as natural habitat, slope-exposure, soil thickness, sunlight, air humidity as well as soil physical and chemical properties.
  
  
  CONCLUSIONS
  Living environment vulnerability and human activities are the main reason causing sharp decrease of wild resources of Begonia fimbristipula. Evaluation on regional distribution of wild Begonia fimbristipula and its protection and use of the rationalization have important value.
authors.forename: Ling
authors.initials: L
authors.lastname: Shao
authors.forename: Xiong-Wei
authors.initials: XW
authors.lastname: Chen
authors.forename: Guang-Jian
authors.initials: GJ
authors.lastname: Liang
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
authors.forename: Jin-Hai
authors.initials: JH
authors.lastname: Xu
mesh_terms: D031112:Begoniaceae / Q000145:classification / Q000235:genetics* / Q000254:growth & development*; D002681:China; D003247:Conservation of Natural Resources; D004463:Ecology; D017753:Ecosystem; D005828:Genetics, Population; D010946:Plants, Medicinal / Q000235:genetics / Q000254:growth & development; D012987:Soil
chemical_list: D012987:Soil