Fig. 6From: The effects of chilling-light stress on photosystems I and II in three Paphiopedilum speciesLight response curves for Y(II) (a, e); Y(NO) (b, f); Y(NPQ) (c, g) and NPQ (d, h) from three species of Paphiopedilum after 8 h chilling stress. Mean ± SE was calculated from six independent plants per speciesBack to article page