Utjecaj ektomikorize na mehanički i kemijski sastav grožđa sorte cv. Syrah (Vitis vinifera L.)

master's thesis

• Title (english): Effect of ectomycorrihza on the mehanical and chemical composition of grape cv. Syrah (Vitis vinifera L.)
• Author: Kristina Novak
• Mentor: Marko Karoglan (mentor)
• Committee member: Marko Karoglan (predsjednik povjerenstva)
• Committee member: Bernard Kozina (član povjerenstva)
• Committee member: Sanja Sikora (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Viticulture and Enology); Zagreb
• Defense date and country: 2017-07-04, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Predmet ovog istraživanja bio je utvrditi kako živi ektomikorizni micelij komercijalnog naziva „Mykoflor“, apliciran na korijen vinove loze sorte Syrah (Vitis vinifera L.), utječe na mehanički i kemijski sastav grožđa. Eksperiment je postavljen 2013. godine u Zagrebu, na vinogradarsko-vinarskom pokušalištu Agronomskog fakulteta „Jazbina“. Mikorizno cjepivo aplicirano je na 40 trsova sorte Syrah, a analiza je provedena na prosječnom uzorku od 10 grozdova. Temeljem dobivenih rezultata utvrđeno je da je mikoriza pozitivno utjecala na povećanje prosječne mase bobice i grozda, na povećanje broja bobica u grozdu i broja grozdova po trsu, što je rezultiralo i povećanjem prinosa po trsu. Također je utjecala i na mehanički sastav bobice, odnosno na povećanje udjela mesa, a smanjenje udjela kožice i sjemenke u grozdu. S obzirom na veći prinos, mikoriza je očekivano dovela do smanjenja sadržaja šećera, dok na sadržaj ukupnih kiselina i pH nije značajno utjecala. Mikoriza je utjecala na povećanje sadržaja vinske i smanjenje sadržaja jabučne kiseline, a nije utjecala na sadržaj polifenola.

Abstract (english)

The purpose of this study was to determine the way that ectomycorrhizal mycelium under commercial name Mykoflor applied to the root of the vine varieties Syrah (Vitis vinifera L.) affects the mechanical and chemical composition of grapes. The experiment was placed in 2013., in the experimental station Jazbina, which is a part of Department of viticulture and enology, Faculty of Agriculture in Zagreb. Mycorrhizal vaccine was applied to 40 vines of varieties Syrah whereas analysis was implemented on an average sample of 10 clusters. It was found that mycorrhiza increased the average cluster and berry weight, number of berries in a cluster and clusters per vine, and also yield per vine. Mycorrhiza had an positive impact on the proportion of meat and negative impact on proportions of skin and seeds. Mycorrhiza reduced sugar content and had no impact on total acidity and pH content. Mycorrhiza increased tartaric acid content and decreased malic acid content but did not affect the content of polyphenols.

• Keywords: ektomikoriza; Syrah; prinos; sadrţaj šećera; ukupna kiselost; polifenoli
• Keywords (english): ectomycorrhizae; Syrah; yield; sugar content; total acidity; polyphenols
• Language: croatian
• URN:NBN: urn:nbn:hr:204:286533
• 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
• Repository: Repository Faculty of Agriculture University of Zagreb
• Created on: 2017-07-24 12:10:50