An increase in leaf temperature from 25 to 35°C led to an increasing trend in photorespiration and a declining trend in the activity of Calvin cycle enzymes, such as Rubisco and fructose 1,6-bisphosphatase (FBPase), resulting in a reduction in net CO 2 fixation ( Kobza and Edwards 1987 ).
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Leaf gas exchange and photosynthetic light-response curves of cassava genotypes under drought stress during the early growth stage and after recovery.
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