Effect of Plowing Conditions in the Field on Root Growth and Glycosides Contents in Taproots of 1- and 2-year-old Plants of Astragalus mongholicus Bunge (Leguminosae)

概要

論文の詳細を見る
The effects of four plowing conditions in the field on the root growth and the amounts of glycosides and dilute ethanol-soluble extract in taproot were examined in 1- and 2-year-old plants of Astragalus mongholicus, to establish better cultivation methods for production of slender taproots of uniform quality. The four plowing conditions used were plowing with trencher to 80 cm in depth (TRN80), and to 50 cm in depth (TRN50), plowing with tractor to 25 cm in depth (TR) and no-plowing (NP). In the 1st year, the plants in NP-plot produced taproots significantly thick in base diameter, whereas in the 2nd year, the plants grown in TRN80-, TRN50- and TR-plots produced taproots significantly greater in length and in dry weight than the plants in NP. The number, length and dry weight of thick-lateral roots were higher in NP-plot plants than in TRN80- and TRN50-plot plants in both years. The total isoflavonoid content significantly increased in the 2nd year but they were apparently not influenced by the plowing conditions. Total astragaloside content in the 1st-year plants was higher in TRN80-plot, whereas in the 2nd year plants, it was higher in NP-plot, but no significant difference was apparently produced by the plowing conditions and growing period. Dilute ethanol-soluble extract content was almost unaffected by plowing conditions and growing period. Results revealed that for the production of slender taproots of uniform quality, plants should be grown in well and deep plowed soil for two years.
日本生薬学会の論文
1998-12-20

Effect of Plowing Conditions in the Field on Root Growth and Glycosides Contents in Taproots of 1- and 2-year-old Plants of Astragalus mongholicus Bunge (Leguminosae)

スポンサーリンク

概要

著者

関連論文

スポンサーリンク