title: [Preliminary study on girdling of Phellodendron amurense in consecutive years].
mesh_terms: D001599:Berberine / Q000032:analysis*; D001600:Berberine Alkaloids / Q000032:analysis*; D002855:Chromatography, Thin Layer; D008516:Medicine, Chinese Traditional; D010946:Plants, Medicinal / Q000032:analysis*; D014197:Trees
chemical_list: D001600:Berberine Alkaloids; D001599:Berberine