title: [Dendrobium officinale cliff epiphytic cultivation method].
abstract: To solve the issues of costly planting of facility cultivation method and inferior efficacy than wild herbs of Dendrobium officinale, the cliff epiphytic cultivation method was studied. To research the growth, agronomic traits, yield, polysaccharide and alcohol-soluble extract contents were measured on the D. officinale from different water regulation and cliff slope gradients treatments. The results showed that D. officinale epiphytic at 85 degrees-90 degrees cliff and sprayed water 1-2 h x d(-1) at the growing season can get better growth and obtain high yield, and the morphology has no different from wild cliff D. officinale, even in the environments without shade. The contents of polysaccharide and alcohol-soluble extract are closely related to the physiological ages, but significantly higher than the facility cultivation. It is possible that environmental stresses benefit the accumulation of polysaccharides, alcohol-soluble extract and other efficient ingredients.
authors.forename: Jin-ping
authors.initials: JP
authors.lastname: Si
authors.forename: Zi-yun
authors.initials: ZY
authors.lastname: Chen
authors.forename: Jing-jing
authors.initials: JJ
authors.lastname: Lu
authors.forename: Yu-qiu
authors.initials: YQ
authors.lastname: Zhu
authors.forename: Guo-jian
authors.initials: GJ
authors.lastname: Cai
authors.forename: Bing-rong
authors.initials: BR
authors.lastname: Huang
authors.forename: Kun-yi
authors.initials: KY
authors.lastname: Zhang
authors.forename: Chuan-gao
authors.initials: CG
authors.lastname: Jin
mesh_terms: D000383:Agriculture / Q000379:methods*; D031667:Dendrobium / Q000737:chemistry / Q000254:growth & development*; D004365:Drugs, Chinese Herbal / Q000032:analysis; D011134:Polysaccharides / Q000032:analysis; D014867:Water / Q000032:analysis
chemical_list: D004365:Drugs, Chinese Herbal; D011134:Polysaccharides; D014867:Water