title: [Correlation between chemical constituents and ecological factors of Astragalus membranaceus var. mongholicus].
abstract: Principal component analysis (PCA) and correlation analysis (CA) were applied to analyze the correlation of the main chemical components in Astragalus membranaceus var. mongholicus and ecological factors. The results showed that the contents of astragaloside, campanulin, ononin, kaempferol and astragalus polysaccharides (APS) of A. membranaceus var. mongholicus produced. in Shanxi were significantly higher than in Inner Mongolia and Gansu. The main climatic factors for affecting the contents of chemical ingredients in A. membranaceus var. mongholicus were annual average relative humidity, sunshine hours and average July temperature. Calcium was the main factor in the soil affecting the chemical ingredient contents, and calcium was negatively correlated with the contents of calycosin glycosides, kaempferol, ononin, quercetin and APS in A. membranaceus var. mongholicus within a certain range.
authors.forename: Qing-zhen
authors.initials: QZ
authors.lastname: Yang
authors.forename: Zeng-hui
authors.initials: ZH
authors.lastname: Wang
authors.forename: Juan
authors.initials: J
authors.lastname: Fu
authors.forename: De-wang
authors.initials: DW
authors.lastname: Liu
authors.forename: Lin-fang
authors.initials: LF
authors.lastname: Huang
mesh_terms: D027885:Astragalus propinquus / Q000737:chemistry*; D002118:Calcium / Q000032:analysis; D002681:China; D002980:Climate; D005960:Glucosides / Q000032:analysis; D007529:Isoflavones / Q000032:analysis; D044949:Kaempferols / Q000032:analysis; D011134:Polysaccharides / Q000032:analysis; D011794:Quercetin / Q000032:analysis; D012987:Soil / Q000737:chemistry
chemical_list: D005960:Glucosides; D007529:Isoflavones; D044949:Kaempferols; D011134:Polysaccharides; D012987:Soil; C526426:calycosin-7-O-beta-D-glucoside; C121707:7,3'-dihydroxy-4'-methoxyisoflavone; C006552:kaempferol; D011794:Quercetin; D002118:Calcium