Fig. 1

Effect of treatments on peroxidase (POD) (A), superoxide dismutase (SOD) (B), catalase (CAT) (C), and ascorbate peroxidase (APX) (D) of sunflower growth under control condition (2.98 dS/m EC) and salinity stress (6.44 dS/m EC). Bars are means of 4 replicates ± SE. Difference letters on bars showed significant changes at p ≤ 0.05: Tukey test. Nitrilotriacetic acid mixed biochar (NAT-BC).