**Author details**

Gizella Győrffyné Jahnke\*, Zóra Annamária Nagy, Csaba Németh, Gyöngyi Knolmajerné Szigeti and János Májer NARIC Research Institute for Viticulture and Enology, Hungary

\*Address all correspondence to: jahnke.gizella@szbki.naik.hu

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