Fig. 3.

(A) Plant P concentration at the second harvest, (B) total plant P at the second harvest (i.e. with ten fully expanded main stem leaves), (C) phosphorus productivity (i.e. P_prod), and (D) phosphorus uptake rate (PUR) of Cullen cinereum, Kennedia nigricans and Lotus australis when grown at low, medium or high temperature with addition of 60 mg kg⁻¹ of P as FePO₄ (mean ± s.e., n = 4). The error bars above the high temperature treatment in (A) are for P concentration of plants that received 60 mg kg⁻¹ of P as KH₂PO₄; P_prod (C) and PUR (D) were calculated using treatment means at the first and second harvest and therefore the s.e. could not be calculated.