Fig. 11
From: The effects of chilling-light stress on photosystems I and II in three Paphiopedilum species
The cyclic electron flow around PSI (CEF) at 200 μmol photons m−2 s−1 in three Paphiopedilum species after 8 h chilling stress. Each vertical bar represents Mean ± SE for four measurements from individual plants. Different letters above bars indicate significant differences between treatment (P < 0.005, based on ANOVA, followed by Tukey’s post hoc tests for comparison)