Effects of AVG and 1-MCP treatments on fruit quality and cold storage of apples Cv. Fuji and Red Delicious

In this study, changes in quality parameters during cold storage after AVG (aminoethoxy-vinylglycine) and 1-MCP (1-methylcyclopropene) applications in apple varieties (Red Delicious and Fuji) grown in Tekirdağ conditions were investigated. For this purpose, preharvest and postharvest AVG application and postharvest 1-MCP application was performed. All the fruits were stored at 0±0,5°C temperature and 90-95% relative humidity conditions for 5 months. During the storage, weight loss, total soluble solid, titratable acidity, starch index, fruit firmness, respiration rate, total anthocyanin, total phenolics, total antioxidant, taste values and decay rate were investigated with 30 days interval. In the study, it was determined that preharvest and postharvest AVG application and 1-MCP application had significant positive effects on preservation the quality of apples (Red Delicious and Fuji) during cold storage. Although preharvest AVG and postharvest AVG applications had positive effects on many quality parameters, it was found that better results were generally recorded in combination with 1-MCP.