Naslov
Influence of rootstock, bud number and harvest time on macro and micro elements of Malvasia istriana wine

Autori
Bukovčan, Renata ; Kovačević-Ganić, Karin ; Kubanović, Veronika ; Gašparec-Skočić, Ljiljana ; Peršurić, Đordano ; Sladonja, Barbara.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Book of abstracts: International scientific conference Mediterranean Malvasias / Sladonja, Barbara - Poreč : Institut za poljoprivredu i turizam Poreč, 2005, 47-49

ISBN
953-97050-7-x

Skup
International scientific conference Mediterranean Malvasias

Mjesto i datum
Poreč, Hrvatska, 19.-21. svibnja

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Malvasia istriana; makro i mikro elementi; ICP-OES
(Malvasia istriana; macro and micro elements; ICP-OES)

Sažetak
Malvasia istriana (Vitis vinifera L.) the most important autochtonous grape cultivar grown in Croatia viticulture sub-region od Istria, has a great potential to produce high-quality white wines. The objective of this work was to study the influence of rootstock, bud number and harvest time on the content of macro and micro elements of Malvasia istriana wine. This study was performed on eight wines produced from Malvasai istriana grafted on two rootstocks (Kober 5BB, 420A) with different bud number (20, 30, 40 buds per vine) and different harvest time (early, normal, late stage of maturity). The measurents were performed with a seequential inductively coupled plasma-optical emission spectrometer, Optima 2000. In all treatments content of arsenic and cadmium were below limit detection indicating quite ecological vineyard management. Rootstock Kober 5BB showed the best results of K, Al, Fe, Zn and MN accumulation at late harvest, indicating K as potential indicator of harvest time. The same tendency was obtained in case of highest bud number (40) at late harvest. Rootstock 420A did not significantly influence the accumulation of elements in different harvest time and bud number, putting that way Kober 5BB as a dominant rootstock. In regard to Al, Fe, Zn and Mn content, Malvasia wines presents good additional source of these essential trace elemnts in diet.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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