Figure 2.

Mean and variation for all rice (Oryza sativa) accessions for average leaf CO₂ uptake during the first 300 s of induction (${\overline{A}}_{300}$), average A stomatal conductance during the first 300 s of induction (g _s avg), average intrinsic water‐use efficiency (${\text{iWUE}}_{\text{avg}}={\overline{A}}_{300}/g_{\text{s avg}}$), average intercellular CO₂ concentration during the first 300 s (C _i avg), and time that A reached 50% and 90% of A ₃₀₀ (IT₅₀ and IT₉₀, respectively). The accessions are ranked by increasing mean for each parameter. Different letters represent statistically significant differences (P < 0.05) between different accessions.