The purpose of this study is to clarify the dynamic
tolerance to chilling–light treatment during the development of
cucumber leaves, and to find out which factors dominate the chilling–
light tolerance during the development of cucumber leaves. To
reach this purpose, we investigated the CO2 gas exchange, chlorophyll a fluorescence transient, 820-nm transmission, fluorescence
quenching and changes of ROS in cucumber leaves at different
development stages during the chilling–light treatment (6 C,
400 lmol m2 s1 light).