id author title date pages extension mime words sentences flesch summary cache txt cord-014900-yw088jvf Li, W. D. Effect of water deficit on biomass production and accumulation of secondary metabolites in roots of Glycyrrhiza uralensis 2011-05-05 .txt text/plain 1902 107 55 title: Effect of water deficit on biomass production and accumulation of secondary metabolites in roots of Glycyrrhiza uralensis Water use efficiency and the root-to-shoot ratio increased significantly in response to water deficit, indicating a high tolerance to drought. Weak water deficit did not decrease root biomass production, but significantly increased the production of glycyrrhizic acid (by 89%) and liquiritin (by 125%) in the roots. Although the responses of the metabolites to drought have been investigated in some medicinal plants [4, 10] , no reference concerning the effect of various water deficit levels on their production by lic orice roots is available. The present study aims to determine the effect of water deficit on gas exchange, biomass and secondary metabolites production in licorice plants. At 60-70% WC, the amounts of glycyrrhizic acid and liquiritin in plant roots were the highest among the studied four levels of soil water con ditions: the gain increased by 85.0 and 119.4%, respectively (Figs. ./cache/cord-014900-yw088jvf.txt ./txt/cord-014900-yw088jvf.txt