title: Grafting influences phenolic profile and carpometric traits of fruits of greenhouse-grown eggplant (Solanum melongena L.).
abstract: The influence of eggplant grafting on tomato rootstock was evaluated during the two growing seasons. Yield, quality traits, and individual phenolics in fruits were assessed. Three commercial varieties and one landrace were used as scions. Grafting significantly increased eggplant yield and decreased the presence of calyx prickles. The effect of grafting on the accumulation of major phenolic constituents in eggplant fruit was inconsistent: in the year with less solar radiation and lower mean daily air temperatures, grafting decreased phenolic content in commercial variety/rootstock fruit and increased the content in landrace/rootstock fruit. An opposite effect in the latter combination was observed in the year with improved conditions for eggplant cultivation. The browning potential of fruit pulp was highly dependent on variety/landrace and partly also on grafting combination. Differences in correlations between phenolic constituents and browning potential (positive for varieties and negative for landrace) could also be ascribed to the importance of other antioxidants for diminished eggplant pulp browning.
authors.affiliation: Biotechnical Faculty, Department of Agronomy, Chair for Fruit, Wine and Vegetable Growing, University of Ljubljana , Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia.
authors.forename: Nina
authors.initials: N
authors.lastname: Kacjan Maršić
authors.forename: Maja
authors.initials: M
authors.lastname: Mikulič-Petkovšek
authors.forename: Franci
authors.initials: F
authors.lastname: Stampar
mesh_terms: D000975:Antioxidants / Q000737:chemistry; D001947:Breeding / Q000379:methods; D005638:Fruit / Q000737:chemistry* / Q000254:growth & development; D018551:Solanum lycopersicum / Q000235:genetics / Q000254:growth & development; D010636:Phenols / Q000737:chemistry*; D032323:Solanum melongena / Q000737:chemistry* / Q000235:genetics / Q000254:growth & development
chemical_list: D000975:Antioxidants; D010636:Phenols
keywords: anthocyanins; eggplant; flavonols; grafting; phenolic acids; quercetin glycosides; scion/rootstock combination