Abstract

The Authors refer to "Washington navel" orange susceptibility to chilling injury (C l) as related to environmental factors and storage temperatures. The fruits were harvested from three different areas in Sardinia and stored far eleven weeks at 4° - 7°C and 90% R.H.. The results show a close relation between C l and environmental factors. The fruits, produced in the hot areas with sandy soil, ripened early and total acidity was low. During starage they were more resistant to C l as compared to oranges produced in cooler areas and with clay soi!. Storage temperatures also influenced susceptibility to C l test and at 4°C showed a greater amount of chilling injured fruits. Weight loss during storage was al so influenced by C l.

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