title: [Observation on the annual and seasonal changes of anatomic characteristics of the main root of Panax ginseng C.A. Meyer].
abstract: Annual dynamic of the main root of Panax ginseng shows that the cross-section of various tissues increases gradually with age, but the ratio of phloemxylem in cross-section decreases. Seasonal dynamic shows that cells of phellogen and cambium divide actively in June-July and gets retarded in August. Ecological conditions can influence annual and seasonal dynamics of the structure of the main root.
authors.affiliation: Department of Biology, Harbin Normal University.
authors.forename: M
authors.initials: M
authors.lastname: Liu
authors.forename: R
authors.initials: R
authors.lastname: Li
authors.forename: M
authors.initials: M
authors.lastname: Liu
mesh_terms: D004463:Ecology; D005894:Panax / Q000033:anatomy & histology*; D010946:Plants, Medicinal; D012621:Seasons; D013997:Time Factors