Postharvest behavior of clonal selections of 'Periana' peaches

Summary Four clonal selections of peaches ( Prunus persica L., cultivar 'Periana') were stored at 0°C for 4 weeks followed by a 3 day shelf life at 20°C in two consecutive seasons and three selections studied in only one season. Ethylene production decreased during cold storage to a minimum value after 3-3.5 weeks. In the first season, particularly in fruit from the first harvest, flesh scald developed in the outer part of the mesocarp and to a lesser extent, a radiating form of internal browning. In the second season low sensitivity to chilling injury in 'Periana' peaches was associated with advanced fruit maturity stage at harvest. Development of selection P16 for long-term cold storage is recommended on basis of its quality parameters and chilling resistance.