title: [Allelopathic effects of aqueous extracts from Panax notoginseng on three maize varieties (Zea mays)].
abstract: It has been showed that there were obvious obstacle effects of Panax notoginseng replanting. Crop rotation was the main effective technique to overcome the obstacle. To find a reasonable crop rotation system for P. notoginseng, aqueous extracts from root, stem and leaf of P. notoginseng were analyzed for allelopathic effect on three maize varieties (which are often grown in regions where P. notoginseng grown). The main results were as follows: (1) Allelopathic effect of P. notoginseng stem and leaf extracts on the three other tested plants was stronger than that of root extracts; (2) Corn was more vulnerable to the effects of allelochemicals at seedling stage than at germination stage, and the corn root was more sensitive than aerial part to allelochemicals; (3) Lusan No. 3 and Yunrui No. 1 showed resistance to P. notoginseng allelopathy, with respective comprehensive sensitivity indexes (M3) of - 0.089 3 and -0.159 2, while Bainuo No. 1 is sensitive at M3 = -0.261 0. It then can be concluded that Lusan No. 3 and Yunrui No. 1 may be an alternative rotation plants for overcoming P. notoginseng continuous cropping obstacle.
authors.forename: Zi-Long
authors.initials: ZL
authors.lastname: Zhang
authors.forename: Jun-Ling
authors.initials: JL
authors.lastname: Hou
authors.forename: Wen-Quan
authors.initials: WQ
authors.lastname: Wang
authors.forename: Zhi-Xin
authors.initials: ZX
authors.lastname: Zhang
authors.forename: Shi-Xiu
authors.initials: SX
authors.lastname: Zhang
mesh_terms: D064089:Allelopathy; D053723:Panax notoginseng / Q000737:chemistry* / Q000254:growth & development; D010675:Pheromones / Q000494:pharmacology*; D010936:Plant Extracts / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D003313:Zea mays / Q000187:drug effects* / Q000254:growth & development*
chemical_list: D010675:Pheromones; D010936:Plant Extracts