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为加深对苹果机械损伤的认识,更好地解决苹果采后机械损伤难题,通过人工模拟试验方法,比较60 cm高度跌落碰撞后秦冠和红富士苹果的损伤程度,以及机械损伤对两种苹果贮藏品质和生理反应的影响。试验结果表明:在同一碰撞条件下,红富士比秦冠苹果更容易产生机械伤,贮藏过程中,伤口面积和深度不断增加,红富士苹果伤口增幅大于秦冠;红富士和秦冠机械伤果在贮藏过程中呼吸强度均增大,红富士果实呼吸峰提前,秦冠的呼吸峰没有提前,而红富士果实的硬度、可滴定酸含量、失重率降幅均小于秦冠,两者可溶性固形物含量变化几乎没有差异。红富士比秦冠苹果对机械损伤更为敏感,而相同的机械损伤对秦冠苹果的生理反应和贮藏品质影响较红富士更大。
In order to deepen the understanding of mechanical injury of apple and solve the mechanical damage problem of post-harvest apple better, the damage degree of Qin Guan and Fuji apple after 60 cm height drop collision was compared by artificial simulation test, and the mechanical damage on two kinds of apple Effect of storage quality and physiological response. The results show that under the same collision conditions, red Fuji is more likely to produce mechanical injury than the Qin crown apple, the wound area and depth increased during storage, the wound growth of Red Fuji apple was greater than that of Qin crown; Respiration intensity increased during storage, respiratory peak of red Fuji fruit ahead of time, peak of Qin crown did not advance, but the hardness of Red Fuji fruit, titratable acid content, loss rate decreased less than the crown, the two soluble solids There is almost no difference in content changes. Red Fuji is more sensitive to mechanical damage than Qinuan apple, while the same mechanical damage has a greater impact on the physiological response and storage quality of Qinuan apple than that of Red Fuji.