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作 者 ：任伟, 郝利平

期 刊 ：核农学报 2016年 30卷 6期 页码：1111-1116

关键词：贡橘；UV-C处理；冷害；贮藏期；

Keywords:royal tribute oranges, UV-C treatment, chilling injury, storage time,

摘 要 ：为探讨UV-C处理对贡橘冷害的影响,以贡橘为试材,在贮前分别用0、1、3、5 KJ·m^-2UV-C辐射处理,研究在1℃贮藏时,果实冷害指数、失重率、果皮细胞膜透性、MDA、POD、SOD等指标的变化。结果表明,3 KJ·m^-2的UV-C处理能有效延迟贡橘果实的冷害发生时间,并能减轻冷害症状,降低果实失重率,降低细胞膜透性,抑制MDA的积累,提高果实POD、SOD活性。由此可见,适当剂量的UV-C处理能提高贡橘对低温的适应性,降低冷害的发生,延长果实贮藏期,减少经济损失。本研究结果为减缓柑橘类果实冷害提供了理论依据。

Abstract:To investigate the effects of UV-C treatment on chilling injury of oranges, royal tribute oranges were treated by 0、1、3、5 KJ·m^-2 UV-C doses irradiation and then stored under 1℃. In the storage, the chilling injury index, weight loss rate, membrane permeability, MDA content, the activity of POD and SOD of oranges were determined. The results showed that 3KJ·m^-2 dose UV-C treatment could delay the occurring time of chilling injury, alleviate the chilling injury symptoms of fruits, decrease the weight loss rate and membrane permeability of fruits and inhibit the accumulation of MDA. The UV-C treatments could also increase the activity of POD and SOD of oranges. So moderate UV-C irradiation could improve the adaptability of royal tribute oranges during low temperature storage, reduce the incidence of chilling injury and extend the storage time, thus reduce economic losses will. This study could provide a theoretical basis for chilling injury.

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