Cluster thinning was tested for 4 consecutive years in a vineyard located in southern Piedmont. At harvest, concentrations of flavonoids were assessed by spectrophotometry and HPLC. Soluble solids and anthocyanins were morre concentrated following berry thinning. Concentrations of nonmethylated or monomethylated anthocyanins increased following thinning, while concentration of malvidin 3-glucoside did not change.
Effect of cluster thinning on berry skin anthocyanin composition of Vitis vinifera cv. Nebbiolo
GUIDONI, Silvia;ALLARA, Pierpaolo;SCHUBERT, Andrea
2002-01-01
Abstract
Cluster thinning was tested for 4 consecutive years in a vineyard located in southern Piedmont. At harvest, concentrations of flavonoids were assessed by spectrophotometry and HPLC. Soluble solids and anthocyanins were morre concentrated following berry thinning. Concentrations of nonmethylated or monomethylated anthocyanins increased following thinning, while concentration of malvidin 3-glucoside did not change.
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