| The effects of 1-methylcyclopropene (1-MCP), delayed storage (DS) and undulatory-temperature storage(US) on the incidence of superficial scald of'Red Fuji'apple and the relative physiological indices were studied. The indexes such as respiration rate, ethylene production rate, fruit firmness,α-farnesene , conjugated trienes, SOD ,POD, PPO activities and the content of polyphenols were determined and analyzed during storage period, and the incidence rate of superficial scald and disease index were observed and counted regularly. The results were as fellows:1. Fruits were treated with 1-MCP, then stored at 0±0.5℃and RH 95% , the physiological effects of 1-MCP on fruits were evaluated. 1-MCP treatment significantly decreased the respiration rate and the ethylene production, delayed the ethylene peak; 1-MCP treatment also remarkably reduced the content of theα-farnesene and conjugated trienes; It maintained a higher level of the activities of SOD and POD,decreased the fruit firmness, inhibited the activity of PPO and increased the content of polyphenols. 1-MCP notably controlled the incidence of superficial scald rate and reduced the the condition of disease index in'Red Fuji'apple.2. Delayed storage 48h controlled the incidence of superficial scald on some context,decreased the disease index and disease rate during storing period; DS treatment also reduced the content of theα-farnesene and conjugated trienes; It maintained a higher level of the activities of POD, decreased the fruit firmness, inhibited the activity of PPO and increased the content of polyphenols.3. Undulatory-temperature storage has good effection on controling the incidence of superficial scald, decreased the content of theα-farnesene and conjugated trienes;The same as DS and 1-MCP treatment , US also maintained a higher level of the activities of POD, decreased the fruit firmness,inhibited the activity of PPO and increased the content of polyphenols.But it increased the respiration rate and the ethylene production, the quality of fruits were lower.4. The effects of 1-methylcyclopropene (1-MCP) ,delayed storage (DS) and undulatory-temperature storage(US)on the occurrence of superficial scald of'Red Fuji'apple were evaluated . the results showed that the effect of 1-MCP was the most remarkable and the effect of delayed storage (DS) was better than undulatory-temperature storage(US),the apple fruit treated with 1-MCP had the best fruit quality , the fruit qulity of ck was similar to fruit with delayed storage (DS) treatment and better than fruit with undulatory-temperature storage(US).
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