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Acta Prataculturae Sinica ›› 2016, Vol. 25 ›› Issue (4): 246-253.DOI: 10.11686/cyxb2015225

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Botanical characteristics and medicinal value of five Glycyrrhiza species cultivated in the Hexi region of Gansu

CHEN Xiao-Na1, QIU Dai-Yu1, 2, *, LIN Hai-Ming1   

  1. 1.College of Agricultural, Gansu Agricultural University, Lanzhou 730070, China;
    2.Gansu Key Laboratory of Chinese Medicines Standardized Production Technological Innovation, Lanzhou 730070, China
  • Received:2015-04-29 Online:2016-04-20 Published:2016-04-20

Abstract: We evaluated the ecological adaptability and medicinal value of five Glycyrrhiza species (G. uralensis, G. inflata, G. glabra, G. pallidiflora, and G. euycarpa) cultivated in the Hexi region of Gansu, China. The botanical characteristics were analyzed and the contents of glycyrrhizic acid and liquiritin in roots were determined. The botanical characteristics differed among the five species. G. pallidiflora had the highest values for plant height, number of blades, and fresh weight of above-ground parts, and G. eurycarpa had the lowest values for these attributes. The root of G. uralensis was significantly longer than those of other four species, but its fresh weight was not significantly different from those of G. glabra, G. inflata, and G. pallidiflora. The contents of glycyrrhizic acid and liquiritin in roots were significantly higher in 3-year-old plants than in 2-year-old plants. The lowest glycyrrhizic acid content was in roots in 3-year-old plants of G. pallidiflora, but the glycyrrhizic acid content in roots reached the standard of the Chinese Pharmacopoeia in the other four species. Only G. uralensis roots had a liquiritin content that reached standard of the Chinese Pharmacopoeia. Considering these agronomic traits and comprehensive indexes, Glycyrrhiza species show good ecological adaptability and can be cultivated in the desert area of Gansu, and G. pallidiflora can be grown as a windbreak and sand-fixing plant in the Hexi region of Gansu.