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本试验对日本产的日本梨和中国梨各二品种在20℃和0℃贮藏期中果实生理生化的变化进行探讨。结果表明:梨在20℃贮藏下,呼吸急剧增强,迅速达到呼吸高峰,组织内的乙烯含量也同时急剧增长形成高峰,果实生理成熟加剧,迅速老化;在0℃贮藏下,果实生理生化全面受到抑制,呼吸高峰不明显,乙烯含量也保持低水平,果实后熟衰老进程延缓。果实组织内气体成分依品种和贮藏温度的差异变化不同,但在0℃贮藏中果实却能自行调节,达到大体相同的含量,即 CO_2 1—3%,O_2 18—22%,N_2 76—79%。
In this experiment, the physiological and biochemical changes of fruits of Japanese pear and Chinese pear varieties in 20 ℃ and 0 ℃ storage period were discussed. The results showed that under the storage of 20 ℃, the respiration increased sharply and reached the peak of respiration rapidly. The content of ethylene in the tissue also increased rapidly and peaked at the same time. Physiological maturation of the fruit increased rapidly and rapidly. At 0 ℃, the physiological and biochemical characteristics of the fruit were fully affected Inhibition, respiration peak is not obvious, ethylene content also remained low, delayed ripening process of fruit. The composition of gas in fruit tissue varied with different species and storage temperature, but the fruit stored at 0 ℃ could self-adjust to the same content, ie, CO_2 1-3%, O_2 18-22%, N_2 76-79 %.