engleski

Ampelography of muscat accessions (Vitis vinifera L.) cultivated on Istrian peninsula

Grapevine (Vitis vinifera L.) accessions 'Muscat Blanc', 'Muškat Momjanski' and 'Moscato Giallo' are traditionally cultivated on Istrian peninsula, well-known to consumers of Istrian wines and especially appreciated as highly aromatic, muscat-odour wine accessions. Due to the high phenotypic similarity, accession 'Muškat Momjanski' and 'Muscat Blanc' are considered as synonyms. To the extent of our knowledge, this is the first report where the accession ‘Muškat Momjanski’ is characterised phenotypically and its phenolic and aromatic fingerprints are compared to 'Muscat Blanc' ('Muškat bijeli', 'Muškat beli') and 'Moscato Giallo' ('Muškat žuti', 'Muškat rumeni'). The intent is to determine potential differences among studied accessions, especially between 'Muscat Blanc' and 'Muškat Momjanski'. The study has revealed considerable differences among studied accessions in morphological parameters, chemical composition, phenolic and terpene profiles of the grape and chemical composition of the wine. Among studied accessions, most distinctive is certainly 'Moscato Giallo' with largest leaves, berry size and most intensive muscat aroma. The accession 'Muškat Momjanski' has smaller berry size (15.0±0.4 mm) and weight (237.9±5.9 g), higher soluble solids (21.4±0.2 °Bx), lower pH value (3.32±0.02), higher phenolic and terpenic content of the berry juice and skin in comparison to 'Muscat Blanc'. Considering genetic similarity, indicated differences suggest that the 'Muškat Momjanski' is distinctive biotype of 'Muscat Blanc' variety. The preliminary ampelographic study suggests that 'Muškat Momjanski' could be distinguished as a biotype of 'Muscat Blanc', what could contribute to even better recognition of Istria as a valuable winegrowing region.

grapevine ; Vitis vinifera ; muškat ; 'Muškat momjanski' ; 'Muscat Blanc' ; 'Moscato Giallo'

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