Inhibition of postharvest volatile compounds release by preharvest acibenzolar-S-methyl(BTH) treatment on muskmelons(cv.Yindi)

Plants and fruits of muskmelon(cv.Yindi) were sprayed with BTH of 50 mg/L at one week before harvest. The volatile compounds in fruit were analyzed by Solid-Phase Microextraction(SPME) and Gas Chromatography-Mass Spectrum(GC-MS) during storage at room temperature. The results show that the release of volatile compounds is inhibited in the BTH treated fruit. The release amount of volatile compounds in treated melons increases along with the storage time. However, the release of volatile compounds in the control fruit showes single peak shape, the maximum release peak are observed at 7 days after harvest. And the gross of released volatile compounds in the treated fruit is lower than that in the control. Moreover, the release of 10 characteristic volatile compounds in the fruit is also affected by BTH treatment in some degree.