Effect of 1-MCP treatment on the quality of some apple varieties in RA and CA

The effect of 1-MCP (Smart Fresh) treatment on the quality of some apple cultivars grown in the southern part of Russia was investigated. 'Renet Simirenko', 'Stark', 'Korei', 'Granny Smith', 'Golden Delicious', 'Idared' and 'Prikubanskoe' were harvested at optimum maturity determined by the major indexes (starch, firmness, soluble solids, acidity) and after treatment (1 ppm of 1-MCP) stored in regular and controlled atmosphere at recommended regimes. After 6 months of storage in RA the treated fruit in comparison with control had 2,0-3,2 kg higher firmness, 15-22% higher titratable acidity, less water loss and better overall consumer quality. 'Granny Smith', 'Korei' and 'Renet Simirenko' were not effected by superficial scald unlike the control. 'Renet Simirenko' and 'Granny Smith' had higher skin chlorophyll content, 'Idared' and 'Prikubanskoe' less anthocyans. Some treated cultivars had 10-30% higher vitamin C and P content. The effect of 1-MCP treatment was more pronounced in CA storage. All treated varieties retain better quality during the shelf-life period of 15 days at 20°C.

The effect of 1-MCP (Smart Fresh) treatment on the quality of some apple cultivars grown in the southern part of Russia was investigated. 'Renet Simirenko', 'Stark', 'Korei', 'Granny Smith', 'Golden Delicious', 'Idared' and 'Prikubanskoe' were harvested at optimum maturity determined by the major indexes (starch, firmness, soluble solids, acidity) and after treatment (1 ppm of 1-MCP) stored in regular and controlled atmosphere at recommended regimes. After 6 months of storage in RA the treated fruit in comparison with control had 2,0-3,2 kg higher firmness, 15-22% higher titratable acidity, less water loss and better overall consumer quality. 'Granny Smith', 'Korei' and 'Renet Simirenko' were not effected by superficial scald unlike the control. 'Renet Simirenko' and 'Granny Smith' had higher skin chlorophyll content, 'Idared' and 'Prikubanskoe' less anthocyans. Some treated cultivars had 10-30% higher vitamin C and P content. The effect of 1-MCP treatment was more pronounced in CA storage. All treated varieties retain better quality during the shelf-life period of 15 days at 20°C.