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

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

Izvornik
Rivista di viticoltura e di enologia (0370-7865) 2-3-4 (2005); 83-90

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Malvasia istriana; rootstock; bud number; harvest time; macro; micro elemets

Sažetak
Malvasia istriana (Vitis vinifera L.), the most important autochtonous grape cultivar grown in Croatian viticulture sub-region of Istria, has a great potential to produce high-quality white wines. The influence of rootstock, bud number and harvest time on the content of macro and micro elements of Malvasia istriana wine was studied. The study was performed on eight wines produced from Malvasia istriana grafted on two rootstocks (Kober 5BB, 420A) with different bud number (20, 30, and 40 buds per vine), and different harvest time (early, normal and late stages of maturity). The measurements were performed with inductively coupled plasma-optical emission spectrometer (ICP-OES) Dual View Optima 2000, Perkin Elmer, USA. In all treatments content of As, Cd and Co were below detection limit 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 normal 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 wine presents good additional source of these essential elements in diet.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA