Fig. 2From: Metabolomic analysis on the mechanism of nanoselenium alleviating cadmium stress and improving the pepper nutritional valueHeatmap of differential metabolites for pairwise comparison in pepper root: AÂ T1 and CK; BÂ T2 and CK; CÂ T3 and CK. T1: nano-Se1; T2: nano-Se5; T3: nano-Se20Back to article page