Fig. 2
From: IAA was involved in phosphorus deficiency-induced cluster roots formation in Macadamia integrifolia

Phosphorus (P) concentrations (A) and content (B) in shoots and roots of Macadamia integrifolia. Plants were grown for four months at 0, 5, 25, 50, 100 and 200 µM P. Different lowercase or uppercase letters mean a significant difference among P supplies (P < 0.05).