Relationship between Endogenous Ethylene Production and Firmness during the Ripening and Cold Storage of Raspberry (Rubus idaeus ‘Heritage’) Fruit

The raspberry (Rubus idaeus) is an important fruit crop; however, its accelerated softening a critical postharvest problem, even at low temperatures. Its has been partially associated with the endogenous production of ethylene from receptacle during ripening. To understand relationship between and quality beginning ripening process, physiological parameters were evaluated ‘Heritage’ cultivar. Two storage assays, 0 °C 10 °C, carried out independent groups fruits attached to their white stage development. treatments included treated (1000 ppb) perception inhibitor 1-methyl cyclopropene (1-MCP, 1600 control treatment. During ripening, in whole was negatively correlated loss firmness. firmness only decreased by effect time, near 1.5 Newtons 16 days. On other hand, showed delay lower 1-MCP, compared ethylene-treated fruit. In addition, these two last assays close 1 Newton 5 No significant differences observed total soluble solids content titratable acidity three results indicate that fruit’s positively related days storage. Future should be performed determine role