Plant respiration plays a critical role in the C balance of plants. Respiration is highly temperature sensitive and small temperature-induced increases in whole-plant respiration could change the C balance of plants that operate close to their light-compensation points from positive to negative.
Photosynthetic rate (P(n)) and the partitioning of noncyclic photosynthetic electron transport to photorespiration (J(O)) in seedlings of four subtropical woody plants growing at three light intensities were studied in the summer time by measurements of chlorophyll fluorescence and CO(2) exchange.
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