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Apertures in the skin of apple fruits and their closure

, : Apertures in the skin of apple fruits and their closure. Erwerbsobstbau 35(6): 148-152

The occurrence and nature of breaks in apple skins were monitored by visual examination of fruits after 24 h of immersion in 0.5% methylene blue solution and by scanning electron microscopy. Principal sites of skin rupture were open lenticels, stomata and surface cracks. These fissures were particularly prevalent during the vegetative period but decreased after harvest and during cold storage (3 degrees C, 96% RH) due to suberization and deposition of cutin.

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