Fig. 3.

Leaf CO₂ assimilation rate (μmol CO₂ m⁻² s⁻¹), leaf stomatal conductance (mmol H₂O m⁻² s⁻¹) and leaf relative water content (% w/w) at 35 DAP in greenhouse mesocosms (A, C, E), at anthesis in the field (B, D, F) under water-stressed and well-watered conditions. The data shown are means of four replicates for each of four genotypes in each phenotype category±SE. Different letters represent significant differences within a panel at the level of α=0.05. HCN: high CN; LCN: low CN.