Figure 1.

The circadian clock regulates long-term WUE of Arabidopsis under light/dark cycles. Estimated WUE of each genotype relative to the estimated WUE of its background, derived from linear mixed effects models that combine all 18 separate batches of experimentation, each having five to 15 replicate plants per genotype. Statistical analysis was derived from pairwise post hoc comparisons between mutants and corresponding backgrounds, using the Kenward–Roger method for determining degrees of freedom and Tukey method for P-value adjustment (^*P < 0.05; ^**P < 0.01; and ^***P < 0.001; not significant [N.S.], P ≥ 0.05). Error bars, mean ± se, reflect modeled data, rather than the range of values sampled from the plants. Black bars, P < 0.05; gray bars, P ≥ 0.05.