Appropriate combinations of apple cultivars and storage technologies for long-term storage
2019
Kasai, S. (Apple Research Institute, Aomori Prefectural Industrial Technology Research Center, Kuroishi, Aomori (Japan)) | Kobayashi, T. | Kudo, T. | Goto, S.
To improve the year-round supply system for Japanese apple fruit, we selected long-term storable cultivars and assessed optimal storage technologies for them. At first, we investigated the effects of 1-methylcyclopropene (1-MCP) treatment and controlled atmosphere (CA) storage on fruit quality after long-term storage in 30 cultivars. 'Shuyo', 'Sekaiichi', 'Jonagold', 'Kotaro', 'Shinano gold', 'Aori 15', 'Ambitious', and 'Aori 21' were selected for their better quality compared with bagged 'Fuji' stored in CA, which was mainly handled in the present system. Next, 1-MCP, CA, and 1-MCP + CA were additionally examined in these cultivars. 'Sekaiichi', 'Aori 15', 'Ambitious', and 'Aori 21' did not have their quality maintained by these methods. On the other hand, 'Shuyo', 'Jonagold', 'Kotaro', and 'Shinano gold' had no physiological disorders and showed good qualities with 1-MCP + CA. Moreover, the appropriate timing of 1-MCP treatment after harvest was thought to be within 3 days in 'Shuyo' and 'Jonagold' and 6 days in 'Kotaro' and 'Shinano gold'.
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