Application of Dynamic Controlled Atmosphere Technologies to Reduce Incidence of Physiological Disorders and Maintain Quality of ‘Granny Smith’ Apples

The efficacy of dynamic controlled atmosphere technologies; repeated low oxygen stress (RLOS) and atmosphere-chlorophyll fluorescence (DCA-CF) to control superficial scald development on ‘Granny Smith’ apples during long-term storage was studied. Fruit were stored for 2, 4, 6, 8, 10 months at 0 °C in DCA-CF (0.6% O2 0.8% CO2), regular (RA)(≈21% 90–95% RH), RLOS treatments: (1) 0.5% d followed by ultra-low (ULO) (0.9% CO2) 21 7 or (2) (CA) (1.5% 1% d. Development inhibited up shelf life (20 °C) under + ULO treatments. Apples ULO, CA, had significantly (p < 0.05) higher flesh firmness total soluble solids. phases applied with CA reduced the possibly suppressing oxidation volatiles implicated development.