title: [Effect of organs biomass by drought stress on the leaf growing stage of Angelica dahurica var. formosana].
abstract: OBJECTIVE
  To study the effect of natural drought stress conditions on Angelica dahurica var. formnosana vegetative organs biomass accumulation and allocation in leaf growing season. To discuss the changing law of Angelica dahurica var. formosana vegetative organs biomass in different drought stress conditions.
  
  
  METHODS
  Measured Angelica dahurica var. formnosana leaf and leafstalk's biomass, all aboveground biomass and the ratio of root biomass, leaf biomass, root/shoot ratio etc. in the growing season under the natural drought stress condition.
  
  
  RESULTS
  Slight drought stress condition was good for organs' biomass accumulation, medium and serious drought stress conditions were bad for organs biomass accumulation. Slight and medium drought stress conditions were good for biomass transit to the root in the leaf growing season and serious drought stress condition was not good for that.
  
  
  CONCLUSIONS
  Suitable drought stress can improve the root biomass ratio in Angelica dahurica var. formosana leaf growing season and get a better yield.
authors.affiliation: College of pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China. yzzbook@126.com
authors.forename: Zhi-zhong
authors.initials: ZZ
authors.lastname: Yang
authors.forename: Yu-ying
authors.initials: YY
authors.lastname: Ma
authors.forename: Xiao-qin
authors.initials: XQ
authors.lastname: Mi
authors.forename: Ying
authors.initials: Y
authors.lastname: Yang
authors.forename: Li-xin
authors.initials: LX
authors.lastname: Jin
authors.forename: Lu
authors.initials: L
authors.lastname: Zong
mesh_terms: D029969:Angelica / Q000254:growth & development*; D018533:Biomass; D055864:Droughts; D018515:Plant Leaves / Q000254:growth & development*; D018517:Plant Roots / Q000254:growth & development; D010946:Plants, Medicinal / Q000254:growth & development; D013312:Stress, Physiological; D013997:Time Factors; D014867:Water
chemical_list: D014867:Water