Fig. 6. Variation in relative values of Φ_PSII and A during desiccation of cut leaves of L. trimestris. Chlorophyll fluorescence emission was done in parallel with net CO₂ uptake during the experiments (see Figs 4 and 5). Closed symbols, Φ_PSII measurements; open symbols, A measurements. Light conditions 450 (circles) or 990 (squares) µmol m^–2 s^–1. These measurements were performed simultaneously with the measurements presented in Fig. 4A and B.