Figure 3.

Disease severity (%) in Phaseolus vulgaris cv. Quivicán seedlings treated with biological or chemical compounds and inoculated with Macrophomina phaseolina isolate CCIBP-Mp1 at 35 days growing on non-sterilized or sterilized soil. Each column represents the mean of 40 seedlings per soil and treatment combination. Columns with a common uppercase or lowercase letter do not differ significantly according to Fisher’s protected LSD test (p = 0.05) for treatments on non-sterilized or sterilized soil, respectively. Vertical bars are the standard errors of the means.