The greenhouse experiment was laid out in a factorial combina- tion of three nutrient solutions having different pH and aluminium concentration (pH 6.0, pH 3.5, or pH 3.5 + 1 mM Al), and two mycorrhizal treatments (with AM, +AM or without AM, −AM).
The greenhouse experiment was laid out in a factorial combina- tion of three nutrient solutions having different pH and aluminium concentration (pH 6.0, pH 3.5, or pH 3.5 + 1 mM Al), and two mycorrhizal treatments (with AM, +AM or without AM, −AM).