Utjecaj folijarne primjene makro i mikro elemenata na kemijski sastav vina Kraljevina

master's thesis

• Title (english): Influence of foliar aplication of macro and micro elements on the chemical composition of Kraljevina wines
• Author: Valentina Trcak
• Mentor: Ana Jeromel (mentor)
• Committee member: Ana Jeromel (predsjednik povjerenstva)
• Committee member: Marko Karoglan (član povjerenstva)
• Committee member: Mirjana Herak Ćustić (član povjerenstva)
• Committee member: Ivana Puhelek (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Viticulture and Enology); Zagreb
• Defense date and country: 2017-09-06, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Kraljevina je autohtona sorta sjeverozapadne Hrvatske, a najviše je nalazimo u Prigorju, u okolici Sv. Ivana Zeline. Tamo je jedna od vodećih sorata, bazno vino gotovo svih proizvođača. Kraljevina je sorta vinove loze koja daje lagana, svježa vina jer nakuplja nižu do srednju količinu šećera, a kiselost je redovito visoka. Jedan od presudnih čimbenika u definiranju kakvoće budućeg vina je kemijski sastav mošta. Folijarnom prihranom utječe se na koncentraciju spojeva primarne arome grožđa, aminokiseline i mineralne tvari.Cilj ovog istraživanja bio je utvrditi različitosti u kemijskom sastavu vina između ne tretiranog i folijarno tretiranog grožđa mikro i makro elementima. Folijarnom prihranom će se korigirati sastav hranjiva kako bi vinovoj lozi omogućili bolje uvjete rasta, razvoja i dozrijevanje bobica.Istraživanje je provedeno kod 2 proizvođača vina Kraljevina, OPG Puhelek Purek i OPG Kos. Prvo se provela kemijska analiza tla, te se zatim vinovu lozu tretiralo hranidbenim tretmanom T3 (Hascon M10 AD, Oligogreen i Drin), kojim se željelo utjecati na status hranjiva u biljci.U oba tretirana vinograda, uočen je pozitivan učinak gnojidbenog tretmana T3 na većinu istraživanih biogenih elemenata, osim magnezija kod oba istraživana vinograda te fosfora u vinogradu OPG Puhelek Purek.

Abstract (english)

Kraljevina is variety of wine indigenous to the north-western part of Croatia and is mostly found in Prigorje, in the region of Sveti Ivan Zelina. It is one of leading varieties of the region and a base wine of almost every wine producer. Kraljevina is a grapevine variety which gives rise to light and refreshing wines because its grapes contain low to medium sugar, while their acidity is usually high. One of the decisive factors in defining the quality of future wine is a chemical compound of the grape must.A foliar fertilization affects the primary grape aroma compound concentration, amino acids and mineral substance. The purpose of this research was to determine the diversity in the chemical composition of wine between non-treated and foliar-treated grapes with micro and macro elements. A foliar fertilization will give a more optimal nutrient composition providing the grapevine with better growth conditions, development and berry ripening. The research was carried out with two Kraljevina wine producers, an OPG Puhelek Purek and an OPG Kos. The first step was the chemical analysis of the soil, followed by T3 nutritive treatment of the grapevines (Hascon M10 AD, Oligogreen and Drin) with the goal to affect the nutrient constitution of the plant.Both of the T3 treated vineyards were shown to have a positive effect for most of the investigated biogenic elements, except for phosphorus in the OPG Puhelek Purek vineyard and magnesium in both.

• Keywords: kraljevina; kemijski sastav vina; folijarna prihrana; mikro i makro elementi
• Language: croatian
• URN:NBN: urn:nbn:hr:204:172500
• 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: Open access
• Created on: 2017-12-07 08:20:04