Response of Pink Ladyp apples to postharvest application of 1methylcyclopropene as a function of applied dose, maturity at harvest, storage time and controlled atmosphere storage

摘要

BACKGROUND: 1Methylcyclopropene (1MCP) is an inhibitor of ethylene reception used in postharvest treatments to delay fruit ripening. Several factors affect the efficacy of 1MCP treatments. The effect of a postharvest treatment with 1MCP on the quality of Pink Ladyp apples as a function of 1MCP dose, storage time and maturity at harvest was investigated. 1MCP treatment was further tested in combination with controlled atmosphere (CA) storage. RESULTS: 1MCP limited fruit respiration and softening during storage and was more effective on partially matured fruits and at prolonged storage times. The delaying of 1MCP on the increase of ripening index was greater on matured fruits at prolonged storage times. The combination of 1MCP and CA treatments positively affected quality indices of mature apples during 6 months of storage and 7 days of commercial life, with 1MCP being more effective than CA. 1MCP and CA showed positive combined effects on firmness and ripening index after 6 months of storage, and on firmness and CO production after a further 7 days of commercial life. CONCLUSION: By knowing fruit maturity at harvest and expected storage time it is possible to choose the most suitable 1MCP dose to meet the market requirements by applying a simple polynomial model. pb 2014 Society of Chemical Industry