Fig.2From: Biochemical response and nutrient uptake of two arbuscular mycorrhiza-inoculated chamomile varieties under different osmotic stressesInteraction effect of osmotic stress (control, − 0.4, and − 0.8 MPa) × arbuscular mycorrhiza (AM) × variety on N content in shoot (a), P content in shoot b and Fe content in shoot c of chamomile. Means within a column followed by the different letter are significantly different at P ≤ 0.05. Standard error of the mean (n = 4)Back to article page