Fig. 9From: The effects of chilling-light stress on photosystems I and II in three Paphiopedilum speciesLight-response changes in photosynthetic electron flow through PSI (ETRI) (a) and PSII (ETRII) (b), and ETRI/ETRII ratios (c) in leaves from three species of Paphiopedilum at 25 °C. Mean ± SE was calculated from 6 independent plants per speciesBack to article page