Usporedba aromatskog profila klonskih kandidata najvažnijih bijelih autohtonih sorata vinove loze u Dalmaciji

master's thesis

• Author: Ivana Paladin
• Mentor: Darko Preiner (mentor)
• Committee member: Darko Preiner (predsjednik povjerenstva)
• Committee member: Jasminka Karoglan-Kontić (član povjerenstva)
• Committee member: Edi Maletić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Viticulture and Enology); Zagreb
• Defense date and country: 2016-06-28, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy; Viticulture and Enology

Abstract

Pošip, Maraština, Vugava i Debit su najvažnije bijele autohtone sorte vinove loze u
Dalmaciji. Klonska selekcija ovih sorata započela je 2006.godine s ciljem izdvajanja
divergentnih klonova kod kojih su uočene i potvrđene pozitivne promjene nekog od
gospodarski važnih svojstava. Tijekom klonske selekcije nastoji se utvrditi dali se klonski
kandidati međusobno razlikuju u osnovnim gospodarskim karakteristikama, a kod bijelih
sorata od izuzetne važnosti utrvrditi postoje li i razlike u sadržaju najvažnijih aromatskih
spojeva u grožđu, zbog njihovog značajnog utjecaja na primarnu aromu vina.
Istraživanje je provedeno kod klonskih kandidata navedenih sorata u pokusnom
nasadu Baštica (Zadar). Uzorkovanje grožđa provedeno je u fazi pune zrelosti u 2015.godini.
Kemijskom analizom klonskih kandidata sorti Maraština, Pošip, Vugava i Debit dokazano je
da se međusobno značajno razlikuju u sadržaju šećera u moštu, ukupne kiselosti i pHvrijednosti.
Osim toga, analizom terpenskih spojeva, pojedini klonski kandidati imaju
povećanu koncentraciju 1-heksanola, 2-heksen-1-ola te α-terpineola, što najbolje možemo
vidjeti kod klonskih kandidata MAR-022, POŠ-075 i VV-265, a neki od klonskih kandidata
Vugave su zabilježili veće koncentracije terpenskih spojeva geraniola i linalo la kao što je
VUG-041. Kod svih sorata prevladavaju ukupni monoterpeni u odnosu na norisoprenoide.

Abstract (english)

Pošip, Maraština, Vugava and Debit are the most important native white grapevines in
Dalmatia. Clonal selection of these varieties began in 2006. with the goal of separation
divergent clones with observed and confirmed positive change in some of economically
important characteristics. During the clonal selection we are trying to determine if they have
different basic characteristics. In some of white varieties that are extremely important, we are
trying to determine differences in the content of the most important aromatic compounds of
grapes, because of their significant impact on the primary flavor in wine.
The research included clone candidates of listed varieties in the experimental vineyard
„Baštica“ (Zadar). The sampling of the grape was conducted at the stage of full maturity in
2015.
Chemical analysis of the Maraština, Pošip, Vugava and Debit clone candidates proved
that these varieties are mutually significally different in content of sugar in grape must,
overall acidity and pH value. Furthermore, analysis of terpene compounds showed that
particular clone candidates have increased level of 1-hexanol, 2-hexen-1-ol and α-terpineol,
which can be seen in clone candidates MAR-022, POŠ-075 and VV-265, and some of the
clone candidates of Vugava had higher concentration of terpene compounds geraniol and
linalool, like VUG-041. In all varieties, overall monoterpenes are dominant over
norisoprenoids.

• Keywords: autohtone sorte; Pošip; Maraština; Vugava; Debit; klonska selekcija; aromatski sastav
• Keywords (english): native varieties; pošip; maraština; vugava; debit; clonal selection; flavour compound
• Language: croatian
• URN:NBN: urn:nbn:hr:204:764051
• Study programme: Title: Horticulture; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka hortikulture (magistar/ magistra inženjer/inženjerka hortikulture)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2016-07-26 07:37:21