Climacteric The rise in respiration rate, found in the fruits of some species, associated with fruit ripening and senescence. It may be induced artificially by treatment with ethylene (ethane).

• 呼吸跃变（呼吸高峰）：当果实成熟到一定程度时，呼吸速率首先降低然后突然增高，最后又下降，此时果实便进入完全成熟期。这个呼吸高峰便称为呼吸跃变。用乙烯人工处理可以诱导呼吸跃变。