Preharvest sprays or postharvest dips of CaCl2 decreased the incidence of surface pitting of ‘Van’ cherries ( Prunus avium L.) resulting from impact damage. Inclusion of a surfactant and thickener in the dip enhanced Ca uptake by cherries in storage. Ca from postharvest dips penetrated the cherry mesocarp rapidly in storage. Maximum Ca uptake by the cherry mesocarp was attained when the pH of the dipping solution was 7. However, postharvest Ca dips were most effective in preventing surface pitting when their pH was 4.
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Lidster et al. (1979) studied this question.
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