Effects of Grafting on Four Characteristic Ester Aromas Contents and Related Enzyme Activities in Muskmelon Fruit

In this experiment,using New Seoul Chui honey muskmelon as the scion,‘Sheng Zhen NO.1’ pumpkin as rootstock,effects of grafting on aroma esters contents and related enzyme activities in muskmelon fruit were studied.The results showed that,grafting reduced the contents of ethyl acetate,acetic acid hexyl ester,acetic acid phenyl methyl ester,acetic-2-methyl butyl acetate in muskmelon fruit,espectively 26.36%,18.52%,13.76% and 14.7% at mature period.Grafting decreased the related enzyme activities of characteristic aroma esters synthesis grafted enzymes,as alcohol dehydrogenase(ADH)and alcohol acyltransferase(AAT)activities,and on the AAT enzyme activity was particularly evident.