The effect of cane girdling on berry skin phenolic concentration of three table grape varieties
György Lukácsy, Szabolcs Villangó, Gyula Váradi, Edit Hajdú, G. Zanathy, Borbála Bálo, Zsolt Zsófi
Abstract
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György Lukácsy, Szabolcs Villangó, Gyula Váradi, Edit Hajdú, G. Zanathy, Borbála Bálo, Zsolt Zsófi
Abstract
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The effect of cane girdling on grape skin phenolic composition and concentration was examined on three Hungarian table grape varieties, i.e. noir-skinned 'Esther', rose-skinned 'Lidi', and blanc-skinned 'Fanny'. Girdling was conducted at the BBCH 75 phenological growth stage (pea-sized berries). A significant increase was observed in anthocyanin-glycosides in the treated berry skins irrespective of the cultivar. Other phenolic substances (gallic acid, trans-resveratrol, (+)-catechin, quercetin-3-glucuronide) were less sensitive to the treatment, but noticeable differences were found between the genotypes.
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The effect of cane girdling on grape skin phenolic composition and concentration was examined on three Hungarian table grape varieties, i.e. noir-skinned 'Esther', rose-skinned 'Lidi', and blanc-skinned 'Fanny'. Girdling was conducted at the BBCH 75 phenological growth stage (pea-sized berries). A significant increase was observed in anthocyanin-glycosides in the treated berry skins irrespective of the cultivar. Other phenolic substances (gallic acid, trans-resveratrol, (+)-catechin, quercetin-3-glucuronide) were less sensitive to the treatment, but noticeable differences were found between the genotypes.
Key concepts: Girdling, Berry, Table grape, Cane, Anthocyanin, Cultivar, Horticulture, Catechin