Table 3.

Interactive effect of various doses of soil applied biochar and peatmoss on the osmolytes and lipid peroxidation activities of tobacco grown under drought stressed conditions

Treatments			Leaf K+ (mg g− 1)	Leaf Cl− (mmol/g)	Leaf Nicotine (mg g− 1)
Control	PM (-)	BC0	9.41 ± 0.31 ef	0.11 ± 0.008 a-c	5.73 ± 0.16 b
		BC1	9.88 ± 0.64 d-f	0.10 ± 0.017 b-d	5.26 ± 0.09 c
		BC2	10.87 ± 0.42 c-e	0.09 ± 0.011 c-f	4.45 ± 0.17 d
	PM (+)	BC0	12.80 ± 0.50 ab	0.10 ± 0.008 b-e	3.62 ± 0.11 e
		BC1	13.13 ± 0.55 a	0.08 ± 0.008 c-f	3.27 ± 0.07 ef
		BC2	13.76 ± 0.37 a	0.07 ± 0.005 ef	3.14 ± 0.04 f
Drought Stress	PM (-)	BC0	7.21 ± 0.76 g	0.14 ± 0.008 a	6.40 ± 0.05 a
		BC1	8.81 ± 0.50 fg	0.12 ± 0.008 ab	6.16 ± 0.09 a
		BC2	9.37 ± 0.25 ef	0.11 ± 0.012 a-c	6.05 ± 0.09 ab
	PM (+)	BC0	10.87 ± 0.42 g	0.10 ± 0.008 b-e	4.45 ± 0.17 d
		BC1	11.26 ± 0.10 fg	0.07 ± 0.008 d-f	4.32 ± 0.06 d
		BC2	12.14 ± 0.27 ef	0.06 ± 0.009 f	4.07 ± 0.15 d

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