Low temperature directly affects the photosynthetic system of
tropical and subtropical plants. It is classified as chilling either in
the light or in the dark. The response of photosynthesis to chilling in
the light has been widely studied using different techniques [1,2].
The effects of chilling in the light are typically greater and, therefore,
likely to mask the effects induced by chilling alone. Tomato
(Lycopersicon esculentum Mill) is an important vegetable crop cultivated
in northeastern China, where chilling in the light is much less
common than cool nights followed by warm sunny days. Therefore,
conducting a systematic research on the effects of LNT on tomato
leaf photosynthesis and the plant’s capacity to recover from the
effects of LNT is important.