Articles
The effect of rootstock on grape quality characters, phenolic and antioxidant potential of a biotype of cultivar ‘Korinthiaki Staphis’ (Vitis vinifera L.)
Article number
1418_14
Pages
111 – 118
Language
English
Abstract
The black Corinthian currant is one of the most important viticultural products of Greece with a significant contribution to the shaping of Greek society in the first 100 years of modern Greece.
Grapevine cultivar ‘Korinthiaki Staphis’ is cultivated in coastal parts of the Peloponnese and the Ionian Islands, where the soil and climate conditions are ideal for grapes of high quality.
In the present study, the effect of three rootstocks (1103 Paulsen, Richter 110 and 41B) on the qualitative and quantitative characters of a biotype/potential clone of ‘Korinthiaki Staphis’ was evaluated.
On the vines that were grafted with each of the above rootstocks, during ripening, the following measurements took place: mechanical properties of grapes and berries, the weight of 50 berries, the berry humidity.
In addition, total soluble solids content (Brix), total acidity and pH were calculated.
Quantitative determinations of various total phenolic components of skins and berries, as well as the antioxidant capacity, were also carried out with the use of spectrophotometry, and the content of the must in individual sugars, acids and individual anthocyanins was determined by HPLC. Differences were observed between the effect of the three rootstocks on both the qualitative and quantitative characters of the biotype.
Vines grafted on rootstock 41B gave satisfactory production in the desired quality characteristics.
Rootstock 1103P appeared to delay harvest giving grapes with reduced total phenolics, anthocyanins and sugars, yet with increased antioxidant capacity.
On the contrary, the grapes that came from the vines grafted on the rootstock R110 exhibited the highest concentration of total phenolics, anthocyanins and sugars, however they showed a deficient antioxidant capacity.
Grapevine cultivar ‘Korinthiaki Staphis’ is cultivated in coastal parts of the Peloponnese and the Ionian Islands, where the soil and climate conditions are ideal for grapes of high quality.
In the present study, the effect of three rootstocks (1103 Paulsen, Richter 110 and 41B) on the qualitative and quantitative characters of a biotype/potential clone of ‘Korinthiaki Staphis’ was evaluated.
On the vines that were grafted with each of the above rootstocks, during ripening, the following measurements took place: mechanical properties of grapes and berries, the weight of 50 berries, the berry humidity.
In addition, total soluble solids content (Brix), total acidity and pH were calculated.
Quantitative determinations of various total phenolic components of skins and berries, as well as the antioxidant capacity, were also carried out with the use of spectrophotometry, and the content of the must in individual sugars, acids and individual anthocyanins was determined by HPLC. Differences were observed between the effect of the three rootstocks on both the qualitative and quantitative characters of the biotype.
Vines grafted on rootstock 41B gave satisfactory production in the desired quality characteristics.
Rootstock 1103P appeared to delay harvest giving grapes with reduced total phenolics, anthocyanins and sugars, yet with increased antioxidant capacity.
On the contrary, the grapes that came from the vines grafted on the rootstock R110 exhibited the highest concentration of total phenolics, anthocyanins and sugars, however they showed a deficient antioxidant capacity.
Publication
Authors
D. Bouza, A. Tsavala, M. Lappa, K. Biniari, I. Daskalakis, M. Stavrakaki
Keywords
grapevine, rootstock, phenolics, antioxidants, anthocyanins
Online Articles (52)