Fig. 7

Effect of variable doses (control having Cd–Cr but no B = 0 g), 50, 100, 150 and 200 g) of spent mushroom substrate derived biochar (B) on maize translocation factor of Cr from root to shoot (A), translocation factor of Cr from shoot to grains (B), translocation factor of Cd from root to shoot (C) and translocation factor of Cd from shoot to grains (D) cultivated under chromium and cadmium toxicity. Bars are means of 3 replicates ± SE. Variable bar letters showed significant changes at p ≤ 0.05 compared by Fisher’s LSD.