Fig. 3From: Metabolomic analysis on the mechanism of nanoselenium alleviating cadmium stress and improving the pepper nutritional valueMatchstick and KEGG analyses of differential metabolites in pepper roots: A/DÂ T1 and CK; B/EÂ T2 and CK; C/FÂ T3 and CK. T1: nano-Se1; T2: nano-Se5; T3: nano-Se20Back to article page