Fig. 2.

Interactive effect of various doses of soil applied biochar and peatmoss on the biomass (fresh and dry) attributes of tobacco grown under drought stressed conditions. For each parameter, bars with the same letter are not significantly different across treatment means (p ≤ 0.05) based on a Tukey’s-HSD test. Capped lines denote the standard deviation of three replicates. PM (+); with peatmoss; PM (-); without peatmoss; BC₀ = no biochar; BC₁ = 150 mg kg^− 1; BC₂ = 300 mg kg^− 1; a) root fresh weight; b) shoot fresh weight; c) root dry weight; d) shoot dry weight