以‘秦光2号’油桃为试材,研究了冷害温度下油桃果实出汁率、相对膜透性、呼吸强度、乙烯释放量、粗纤维含量等的变化。结果表明:与对照相比,冷害发生后油桃果实的相对膜透性急剧升高;果实硬度及原果胶含量在贮藏末期异常增加;呼吸速率和乙烯释放量异常变化;冷害加速了油桃果实可溶性蛋白质和叶绿素的降解。

This paper studied the changes of the extractable juice,respiration rate,cellulose content,ethylene production and so on of nectarines at the chilling injury temperature.The results showed that relative membrane permeability enhanced significantly,chilling injury induced the decomposition of respiration and ethylene production,and brought the appearance of respiration peak and the ethylene peak 10 days earlier than control.The firmness and cellulose content increased abnormally when chilling injury happened.Chilling injury accelerated the degradation of soluble protein and chlorophyll.