| The method of determining the maturity and harvest date, storage behavior and effects of 0.5uL/ L 1-methylcyclopropene(1-MCP) on the respiration, ethylene production, fruit quality and protein patterns of 'Pink Lady'apple were studied during the storage at 0℃and the subsequent 14-day shelf life at room temperature; The physiology indices changing of 'Fuji'and 'Qinguan'apples been also studied during storage at 0℃. The potential application of 1-MCP to 'Pink Lady'apple storage was discussed. The result shows: (1) The starch index can be used to determine the maturity and the harvest date of 'Pink Lady'apple. Referring to the starch test guide developed in this experiment, 'Pink Lady'apple should be harvested when the starch index reached 6. (2) 0.5uL/ L 1-MCP significantly inhibited the respiration and ethylene production, slowed down the decrease in the flesh firmness, total soluble solids and titratable acids of 'Pink Lady'apple during storage at 0℃and the subsequent 14-day shelf life at room temperature. 'Pink Lady'apple can be stored well for 5 months in cold storage and 1-MCP can improve the storage quality significantly. (3) The 18kD protein accumulated gradually with the increase of maturity of 'Pink Lady'apple. The proteins accumulated reached the highest after 90d's storage. 1-MCP inhibited this protein significantly. (4) 'Fuji'apple appeared the ethylene peak later than 'Qinguan'apple, and the peak value are lower than 'Qinguan'apple during storage at 0℃and the subsequent 7-day shelf life at room temperature. And the decrease of flesh firmness, total soluble solids and titratable acids in 'Fuji'apple were also slower than 'Qinguan's'. In conclusion, the research resuits can applied widely in harvest and postharvest storage of 'Pink Lady', 'Fuji'and 'Qinguan'apples...
|
PDF Full Text Request