Effect of cold acclimation combined 1-MCP and controlled freezing point storage on several physiological indexes related to fruit softening of Mopan persimmon

To investigate the effect of cold acclimation combined with 1-MCP and controlled freezing point storage on several physiological indexes related to fruit softening of Mopan persimmon was studied. The control group was 1-MCP combined with controlled freezing point storage. Results showed that cold acclimation combined with 1-MCP and controlled freezing point storage not only effectively reduced ethene production (p<0.05) , but also retarded the activities of polygalacturonase (PG) , cellulose (CX) and amylase (AI) (p<0.05) , which reduced the increasing of water soluble pectin (WSP) (p<0.05) significantly and delayed the decrease of fruit firmness (p<0.05) effectively. Therefore, cold acclimation combined with 1-MCP and controlled freezing point storage was better than 1-MCP combined with controlled freezing point storage.