Figure 7.

Utility of RCA formation over 40 d of growth on a silt-loam and a loamy-sand soil under different precipitation regimes. There was 21 kg ha⁻¹ residual nitrogen in the top 60 cm (Fig. 6.) The simulated genotype was the maximum RCA reference genotype (Fig. 3). See Figure 2 for error bars. d.w., Dry weight.