Fig. 5.

³³Phosphorus tracer accumulation in rice plant tissues 3, 24 and 120 h after spiking in Opt-P and Low-P (LP) treatments of the hydroponic glasshouse experiment. General partitioning of ³³P between roots and above-ground compartment (A), and ³³P accumulation in different above-ground tissues (B). Error bars depict standard error of the mean of three or four replicates plants per time point. The letters present the results of Duncan’s multiple range tests (α = 0·05, n = 3 for Low-P, n = 4 for Opt-P) done for the vegetative above-ground compartment using the treatment as factor. No letter indicates no significant difference between treatments.