Different letters in the same column indicate significant differences between treatments (P60.05).
*
Plants inoculated only withA. nigerspores at different concentrations.
**
Crown- and root-rot disease severity was assessed on a rating scale of 0–4 by observing the relative area as percentage of root and crown region damagedby disease,
where scale 0 = no damage, 1 = 1–25% damage, 2 = 26–50% damage, 3 = 51–75% damage, and 4 = 76–100% damage in the root and crown regions.