Abstract
Biomass production is determined by respiration as well as photosynthesis. In addition, respiration is also strongly affected by temperature. We examined the effects of night temperature on biomass production and respiration in rice during different stages. During the vegetative stages, high night temperature led to increases in biomass production and respiration. Photosynthesis was more stimulated and this was mainly caused by an enlargement of leaf area. During the ripening stages, final biomass production was not affected by night temperature. Although respiration was increased by high night temperature, a delay of leaf senescence and a retardative decrease in green leaf area were found for the high night temperature treatment.
