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KMID : 0903619910320040484
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Journal of the Korean Society for Horticultural Science
1991 Volume.32 No. 4 p.484 ~ p.489
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Effect of Postharvest Calcium Infiltration and Temperature on the Incidence of Disorders and Fruit Decay of ´ Jonathan ´ Apples
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Abstract
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This experiment was carried out to investigate the effect of concentrations and postharvest infiltration methods of calcium chloride on the incidence of storage disorders and fruit decay of ´Jonathan´ apple fruits.
Calcium chloride treatments significantly inhibited the spotting disorder of fruit skin and Jonathan breakdown. Treatments of pressure or vacuum infiltration were superior to dipping in the control of storage disorder of fruit decay. Spotting disorder of fruit skin was rated at the lowest in 2 % solution of calcium chloride. However, in Jonathan breakdown, no difference was observed among the given concentrations of calcium chloride solution. Spotting disorder of fruit skin was rated at the lowest in 80㎪ pressure and 40㎪ vacuum infiltration as compared to that of other treatments. Storage disorders and fruit decay observed were higher at 15℃ than at 4℃ storage for a given period. Fruit decay was also significantly less observed in calcium chloride treatments, and the major fungal pathogens decaying the fruits were Alternaria mali and Botryosphaeria dothidea.
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