Figure 3.
Changes in ABA (A), IAA (B) SA (C) and JA (D) content of mint leaves in response to biochar and chemically modified biochars under fluoride and cadmium toxicities. Data represent the average of three replicates (n = 3) ± standard error. Different letters indicate significant differences by Tukey HSD test at p ≤ 0.05. ABA: abscisic acid content; IAA: indole-3-acetic acid; SA: salicylic acid; JA: jasmonic acid F: Fluoride; Cd: Cadmium; Bio-H2O2: Modified biochar by H2O2; Bio-KOH: Modified biochar by KOH; Bio-H3PO4: Modified biochar by H3PO4.
