Effects of grafting with Cucumis metuliferus on resistance to Meloidogyne incognita and fruit flavor and quality at mature stage of muskmelon
The purpose of this study was to clarify the effects of rootstock grafting on the resistance to Meloid-ogyne incognita and fruit flavor and quality at mature stage of muskmelon.In this study,Huangmengcui,a thick-skinned melon,was used as a scion,and Cucumis metu-liferus ZM1 and PI1029 were used as rootstocks.Under facility cultivation conditions,the related quality and aromatic sub-stances of mature fruits were determined.Taking self-rooted melon as control,the root-knot index was measured under pot conditions.The results showed that the root-knot index of grafted melon was lower than that of self-rooted melon,and the stem diameter on January 1,2023 and January 20,2023 was higher than that of self-rooted melon.The vitamin C content and titratable acid content of the fruit were higher than those of the self-rooted melon.The single fruit weight of melon graf-ted with PI1029 as rootstock was lower than that of self-rooted melon,while the single fruit weight of melon grafted with ZM1 as rootstock was higher than that of self-rooted melon.A total of 116 aromatic substances were detected in melon fruits.Compared with the control,the types of aromatic substances in melon fruits grafted with two rootstocks decreased.Compared with the control,the relative contents of esters,alkanes and acids in melon fruit grafted with ZM1 as rootstock were higher.In conclusion,the composition and content of aromatic substances in melons grafted with different rootstocks changed,re-sulting in differences in the types and contents of common aromatic substances and the existence of unique characteristic components.The comprehensive traits of grafted melons with ZM1 as rootstock were better than those of self-rooted melons,and ZM1 was suitable as a grafting rootstock for Huangmengcui.
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