Articles
EFFECT OF RIPENESS AT HARVEST ON RESPONSE OF PLUMS TO TREATMENT WITH 1-METHYLCYCLOPROPENE
Article number
599_3
Pages
49 – 52
Language
English
Abstract
Postharvest softening is a major factor limiting the shipping, storage and shelf life of plums. 1-MCP has been identified as a possible solution, but results have been variable.
In this trial, three plum cultivars, Vanier, Italian and Verity, were harvested at 5 successive maturities and treated with 1-MCP. 1-MCP was applied as the commercial product EthylBloc® at room temperature for 6 hrs at a rate of 2g/m3 prior to cold storage.
After 30 days storage at 1°C, fruit were evaluated for firmness, colour, pH, soluble solids and amount of decay.
Results were most pronounced for the cultivar Vanier. Both softening and colour change were significantly reduced in 1-MCP treated fruit from all harvest dates. Verity fruit exhibited a less pronounced reduction in softening, no effect on colour change and increased soluble solids as a result of 1-MCP treatment. 1-MCP had no affect on any of the quality parameters when applied to Italian plums.
These results vary significantly from observations in previous years.
In this trial, three plum cultivars, Vanier, Italian and Verity, were harvested at 5 successive maturities and treated with 1-MCP. 1-MCP was applied as the commercial product EthylBloc® at room temperature for 6 hrs at a rate of 2g/m3 prior to cold storage.
After 30 days storage at 1°C, fruit were evaluated for firmness, colour, pH, soluble solids and amount of decay.
Results were most pronounced for the cultivar Vanier. Both softening and colour change were significantly reduced in 1-MCP treated fruit from all harvest dates. Verity fruit exhibited a less pronounced reduction in softening, no effect on colour change and increased soluble solids as a result of 1-MCP treatment. 1-MCP had no affect on any of the quality parameters when applied to Italian plums.
These results vary significantly from observations in previous years.
Publication
Authors
L.J. Skog, B.H. Schaefer, P.G. Smith
Keywords
Prunus domestica, Prunus salicina, storage, firmness, 1-MCP
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