Fig 4. Effect of botanical formulations on acid invertase (AI) and protease activities of wheat leaves from plants inoculated with B. sorokiniana (9 d after inoculation).

(A) Acid invertase activity (pot experiment), (B) protease activity (pot experiment), (C) acid invertase activity (field experiment), (D) protease activity (field experiment). Data expressed as ± standard deviation of mean (SD) of three replicates. LSD indicates least significant differences and mean values with different letters on the bars are statistically significantly different from each other according to the LSD test at P< 0.05. See Table 1 for abbreviations.