Utjecaj folijarne primjene inaktivnih kvasaca na kemijski sastav grožđa sorte 'Plavac mali crni'

master's thesis

• Title (english): The impact of foliar application of inactive yeasts on the chemical composition of 'Plavac mali crni' grapes
• Author: Antonio Ivčević
• Mentor: Željko Andabaka (mentor)
• Committee member: Željko Andabaka (predsjednik povjerenstva)
• Committee member: Marko Karoglan (član povjerenstva)
• Committee member: Domagoj Stupić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Viticulture and Enology); Zagreb
• Defense date and country: 2024-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Klimatske promjene uzrokuju raniji početak vegetacije i ubrzano dozrijevanje, što rezultira povećanjem sadržaja šećera, smanjenjem organskih kiselina i pojavom fenolne "nezrelosti". U radu se ispituje primjena inaktivnih kvasaca kao vanjskih aplikatora koji mogu ublažiti ove negativne trendove. Istraživanje je provedeno u vinogradu 'Plavca malog' na otoku Visu, gdje su folijarno primijenjeni inaktivni kvasci. Analizirani su sadržaj šećera, organskih kiselina i polifenola. Rezultati su pokazali da folijarna primjena inaktivnih kvasaca nije imala značajan pozitivan utjecaj na sadržaja i zrelost polifenola, te na sadržaj šećera i organskih kiselina.

Abstract (english)

This thesis investigates the impact of foliar application of inactive yeasts on the chemical composition of 'Plavac mali crni' grapes, the most important black grape variety in Croatia. Climate change is causing an earlier start to the growing season and accelerated ripening, resulting in increased sugar content, reduced organic acids, and the occurrence of phenolic "immaturity." The study examines the use of inactive yeasts as external applications that could mitigate these negative trends. The research was conducted in a vineyard on the island of Vis, where inactive yeasts were applied foliarly. Analyses included sugar content, organic acids, and polyphenols. The results showed that the foliar application of inactive yeasts did not have a significant positive impact on the polyphenol content and maturity, as well as on the sugar and organic acid content.

• Keywords: inaktivni kvasci; 'Plavac mali crni'; klimatske promjene; polifenoli
• Keywords (english): inactive yeasts; 'Plavac mali crni'; climate change; polyphenols
• Language: croatian
• URN:NBN: urn:nbn:hr:204:131426
• 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 authenticated users
• Created on: 2024-10-31 08:11:57