Responses of postharvest "Qinmei" and "Hayward" to 1-Methylcycloopropene

100 nL/L 1-methylcyclopropene(1-MCP) was applied to Qinmei and kiwifruits for 24 h,whose effects on respiration rates,ethylene production rates,flesh firmness,titratable acid,and total soluble solids were studied.The results showed that 100 nL/L 1-MCP inhibited respiration rates and ethylene production rates during storage at 0 ℃,slowed down flesh softening and reduction of titratable acid evidently and inhibited the increase of total soluble solids of kiwifruits both during storage and shelf-time.Hayward flesh softening was slower than Qinmei and more total soluble solids in Hayward showed that has nicer storage quality and edibility.