Fig. 4
The effect of arbuscular mycorrhizal fungus (AMF) and olive mill waste (OMW) on non-enzymatic component of the ascorbate–glutathione (ASC/GSH) cycle in oat plants. The means in each parameter with similar small letter(s) are not significantly different at 5% probability level (Tukey HSD test). ASC: Ascorbate; GSH: Gluthatione