Figure 3.

Variation of among districts in the percent of aflatoxin-producing Aspergillus isolates producing quantities of AFB₁. ND, none AFB₁ detected; 0–100, producing of AFB₁ by isolates was 0–100 ng·mL⁻¹; 100–1000, producing of AFB₁ by isolates was 100–1000 ng·mL⁻¹; >1000, production of AFB₁ by isolates was >1000 ng·mL⁻¹; lines not sharing a common letter are significantly different (p ≤ 0.05) according to Tukey’s HSD test on ranks of AFB₁ concentrations.