关键词: 三七, 表型生物学性状, 土壤, 皂苷, 相关性

Abstract: Due to continuous cropping obstacles and the demand of Panax notoginseng is increasing,P.notoginseng has been spreading to other no genuine producing area.In order to elucidate the growth and saponins content of P.notoginseng from different places and provide theoretical basis for the cultivation and the genuine producing authenticity of P.notoginseng.In the present study,we investigated the physical and chemical properties of the soil in Wenshan and other P.notoginseng growing areas and the development and content monomer saponins in roots of three years old P.notoginseng.The results showed that the content of saponins was higher in genuine producing area grown seedlings than other areas,and the level of the saponins of other four producing areas was also higher than that required by Chinese Pharmacopoeia.There were significant differences in the growth and development of P.notoginseng in the five producing areas.The growth and development were negatively correlated with the contents of total saponins in main root and rhizome of P.notoginseng.Soil organic matter,total nitrogen and total phosphorus were negatively correlated with saponin of the main root and rhizome,while total potassium and slow-acting potassium were positively correlated with saponin of the main root and rhizome.Therefore,the cultivation of Panax notoginseng has obvious authenticity,and the application of nitrogen,phosphate and potassium fertilizer should be controlled during the cultivation of Panax notoginseng.

Key words: Panax notoginseng, phenotypic biological characters, soil, saponins, correlation