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Articles

EFFECTS OF PREHARVEST AND POSTHARVEST 1-METHYLCYCLOPROPENE TREATMENT ON EXTERNAL CO2 INJURY IN APPLES DURING STORAGE

Article number
945_42
Pages
317 – 324
Language
English
Abstract
The objective of this study was to investigate the effects of preharvest and postharvest 1-methylcyclopropene (1-MCP) treatment on the incidence of external CO2 injury in apples during storage.
During a period of 4 years, ‘McIntosh’ or ‘Empire’ trees were either untreated or sprayed 7 to 11 days before harvest with 1-MCP (HarvistaTM). Following harvest, apples were cooled overnight and then treated within 7 days with or without 1-MCP (SmartFreshSM) for 24 hours at 3°C. Apples were subsequently held in controlled atmosphere (CA) at 3°C for 6 or 9-9½ months.
Apples from trees sprayed with Harvista and/or treated with SmartFresh developed more external CO2 injury, compared to those not treated.
The incidence was greatest in SmartFresh-treated fruit that had been sprayed with Harvista containing the highest 1-MCP concentration, while less CO2 injury developed when SmartFresh was applied closer to harvest.
The usual 1-MCP effect of improved firmness retention was observed throughout.

Publication
Authors
J.R. DeEll, B. Ehsani-Moghaddam
Keywords
Malus ×domestica, 1-MCP, SmartFreshSM, HarvistaTM, disorder, firmness
Full text
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