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27 July 2016 Effects of delayed controlled atmosphere storage on disorder development in ‘Honeycrisp’ apples
Jennifer R. DeEll, Geoffrey B. Lum, Behrouz Ehsani-Moghaddam
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The objective of this study was to investigate the effects of delayed controlled atmosphere (CA) storage on fruit quality and disorders in temperature conditioned ‘Honeycrisp’ apples. For three consecutive years, ‘Honeycrisp’apples were harvested from the same commercial orchard and conditioned for 4 d at 12-19 °C immediately after harvest. Apples were then held in ambient air at 3 °C for 0, 2, 4, 8, or 14 wk, followed by CA storage (3 kPa O2 and 1.5 kPa CO2) at 3 °C for 6 or 7 mo of total storage time. The effect of 1-methylcyclopropene (1-MCP; 1 µL L-1) was also investigated. Delaying the establishment of CA reduced the incidence of internal CO2 injury, with or without flesh cavitation. Furthermore, higher incidence of CO2 injury required longer delay of CA to reduce the disorder. In some years, delayed CA also resulted in increased lenticel breakdown, bitter pit/blotch and greasiness. 1-MCP treatment reduced lenticel breakdown when CA establishment was delayed 4 wk or more. There was variation in fruit firmness among years and durations of CA delay, and some increase in firmness was observed during storage. 1-MCP-treated fruit showed little change in firmness with delayed CA. There was also little effect of delayed CA on internal ethylene concentration (IEC), soluble solids concentration (SSC), and malic acid content. These results suggest that conditioning and delaying CA storage reduces the incidence of internal CO2 injuries in ‘Honeycrisp’ apples, but the delay may aggravate other disorders.

© Her Majesty the Queen in right of Canada 2016. Permission for reuse (free in most cases) can be obtained from RightsLink.
Jennifer R. DeEll, Geoffrey B. Lum, and Behrouz Ehsani-Moghaddam "Effects of delayed controlled atmosphere storage on disorder development in ‘Honeycrisp’ apples," Canadian Journal of Plant Science 96(4), 621-629, (27 July 2016).
Received: 26 January 2016; Accepted: 1 February 2016; Published: 27 July 2016

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CA storage
CO2 injury
dommages causés par le CO2
entreposage AC
fruit quality
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