EFFECTS OF 1-MCP ON POSTHARVEST PHYSIOLOGY OF‘AMERICA NO.8'APPLE IN STORAGE

Experiments were conducted to study effects of 1-MCP on postharvest physiology of 'America No.8'apple during the storage at 0 ℃.The results showed that 1-MCP significantly decreased the ethylene production,delayed the ethylene peak,ACO(ACC oxidase)activity peak and the respiration peak,and inhibited ACO activity in the early postharvest and respiration rate;and decreased the loss of fruit firmness.In the meantime,it also decreased LOX activity and delayed LOX activity peak,slowed down the increase of MDA content and the relative membrane permeability,reduced the peroxide action of membrane lipids.The result suggest that 1-MCP could significantly improve the storage quality.