维生素C是一种剂，能帮助植物抵抗干旱、和紫外线。维生素C保护植物免受光合作用中有害副作用的侵害。 维生素C能抗坏血病，故又称抗坏血酸。是广泛存在于新鲜水果蔬菜及许多生物中的一种重要的维生素，作为一种高活性物质，它参与许多新陈代谢过程。近几年来在植物衰老和逆境等自由基伤害理论的研究中，维生素C作为生物体内对自由基伤害产生的相应保护系统成员之一，更引起了人们的研究兴趣。因此对其含量的测定，可作为及抗逆境的重要生理指标，同时对鉴别果树品质优劣、选育良种都具有重要意义。
维生素Cvitamin C抗坏血酸(ascorbic acid)
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