カンゾウの栽培および育種に関する研究(1)

概要

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The growths, yields and chemical components of Glycyrrhiza plants, i.e. Glycyrrhiza glabra L. (Line A), Glycyrrhiza uralensis Fiscii. et DC. (Lines B and C) and Glycyrrhiza glabra L. var. glandulifera REG. et HERD. (Line D) were studied for three years from 1993 to 1995. The stem lengths, number of stems and cauline leaves per plant increased lineally as the plants grew during the three years after planting. The two strains of G. glabra (including variatus, the following is the same) were the long stem type having elongated stems (Line D) and the multi branched type (Line A). The stolon length of 3-year-old plants of G. uralensis was longer than the root length. Whereas in the two strains of G. glabra, the stolon and radix lengths were about the same. The dry weight of subterranean part of G. glabra was approximately 400 g/plant, and that of G. uralensis approximately 200 g/plant. The yield efficiency of G. uralensis was higher than that of G. glabra, because the former had a higher T-R ratio (root weight/top weight) than the latter. The glycyrrhizin contents in the stolon and radix of 3-year-old plants were about the same and were both less than 2.5%, which is the glycyrrhizin content specified in JPXIII. The amounts of absorbed mineral nutrients of N, P_2O_5, K_2O, CaO and MgO per plant were 5.74 g, 6.98 g, 9.57 g, 3.89 g and 1.12 g, respectively.
日本生薬学会の論文
1997-10-20