With Actinidia chinensis Jianxiang as scion,seedlings of A.deliciosa,A.valvata and A.valvata(rootstock)+A.deliciosa Miliang 1(interstock)were used as rootstocks to explore the effects of different rootstocks on fruit size,intrinsic quality and aroma components of kiwifruit,so as to provide a basis for selec-ting appropriate rootstock-scion combinations in production.The results showed that the interstock and A.valvata had significant effects on improving fruit weight and the content of soluble solid.In terms of titratable acid,dry matter content and vitamin C,interstock was significantly superior to A.valvata and A.deliciosa.Different rootstocks had no effect on the type of volatile metabolites,but had a great effect on the content of metabolites.The differential substances mainly included terpenoids,ketones and aldehydes.The aromatic hydrocarbons,some ketones and terpenoids were significantly increased by interstock treatment,which enhanced intensity of aroma.In order to improve the fruit size,intrinsic quality and give full play to the aroma quality,it is recommended to use A.valvata+Miliang 1 as rootstock for Jianxiang production.
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