Production, physicochemical quality and antioxidant capacity of ‘Niagara Rosada’ grape grafted on different rootstocks

Abstract

The objective of this study is to evaluate the effect of rootstocks on grape production, quality and antioxidant capacity of ‘Niagara Rosada’ grape in two productive cycles. The work was developed in Jundiaí-SP, Brazil (26° 06’ S, 46° 55’ W and an average altitude of 745 m). The experimental design was in randomized blocks with subdivided plots, the plots being represented by the rootstocks and the subplots by the production cycles, with four replications, each consisting of 6 plants. The treatments consisted of a combination of ‘IAC 313 Tropical’, ‘IAC 572 Jales’, ‘IAC 571-6 Jundiaí’, ‘IAC 766 Campinas’ and ‘106-8 Mgt’ as rootstocks and ‘Niagara Rosada’ as graft, and the production cycles were 2013 and 2014. The number of bunches, production and productivity of the vines, the physical characteristics of bunches, berries and stalks and the physicochemical composition of the must (soluble solids content, titratable acidity, pH and the relation soluble solids/titratable acidity) were evaluated in production cycles of 2013 and 2014). The content of chlorophylls, anthocyanins, carotenoids, flavonoids and total phenolic compounds and the antioxidant activity of grapes were also evaluated in grape berries. The rootstocks did not influence the production and physical quality of ‘Niagara Rosada’ grapes. As for the chemical characteristics, rootstocks only had an effect on solids content, and ‘IAC 766’ and ‘106-8 Mgt’ rootstocks promoted higher values of this characteristic. Likewise, the total phenolic compounds and the antioxidant activity of the grapes were not influenced by the studied rootstocks. The vines in 2013 presented higher production and better physical characteristics of the grapes, however, the soluble solids content in this cycle was lower than in 2014.

Influence of Rootstock on Yield Quantity and Quality, Contents of Biologically Active Compounds and Antioxidant Activity in Regent Grapevine Fruit

“…It was observed that the f ruit from most of the evaluated combinations had an extract above 20 Brix, whereas the lowest value was obtained in the 101-14 variant. Similarly, Vedoato [ 57 ] showed a significant effect of the rootstock on the extract level, and this relationship was confirmed in the study conducted by Provost et al [ 6 ]. Extract and acidity are important indicators of grape ripening and fruit quality.…”

“…As reported by Provost et al [ 6 ], the effect of the rootstock on yields is, to a large extent, modified by the cultivar. In a study conducted in Brazil by Vedoato [ 57 ], there was no significant effect of rootstocks on the yield of the dessert grape variety Niagara Rosada, whose average yields ranged from 7.78 to 10.68 t × ha −1 . These values were lower than those obtained by Tecchio [ 58 ] in Votuporanga (northwestern part of the São Paulo state).…”

“…It was found that the fruits from bushes grafted on the 101-14 rootstock were characterised by the significantly lowest acidity of all the evaluated variants. In a study conducted by Vedoato [ 57 ], no significant effect of the rootstock on fruit acidity in the Niagara Rosada cultivar was shown. A similar relationship was observed in the Frontenac cultivar by Provost et al [ 6 ], whereas significant differences between own-root bushes and those grafted on rootstocks were shown in the Frontenac blanc cultivar.…”

Yield components and physical attributes of the ‘BRS Magna’ grapevine on different rootstocks

“…Success in grape production is linked to the management practices adopted, from vineyard establishment, formation, and harvest (Vedoato et al, 2020). The use of rootstock has become an indispensable practice, as the interaction between it and the scion cultivar, climate, and soil of each producing region allows for satisfactory results in grape production (Souza et al, 2015).…”