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master's thesis
Utjecaj djelomične defolijacije na uvometrijske i mehaničke vrijednosti sorata Merlot i Cabernet sauvignon
Zagreb: University of Zagreb, Faculty of Agriculture, 2017. urn:nbn:hr:204:031218
Franjo, Kristijan
University of Zagreb
Faculty of Agriculture
Viticulture and Enology

Institutional repository: Repository Faculty of Agriculture University of Zagreb

Cite this document

Franjo, K. (2017). Utjecaj djelomične defolijacije na uvometrijske i mehaničke vrijednosti sorata Merlot i Cabernet sauvignon (Master's thesis). Zagreb: University of Zagreb, Faculty of Agriculture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:204:031218

Franjo, Kristijan. "Utjecaj djelomične defolijacije na uvometrijske i mehaničke vrijednosti sorata Merlot i Cabernet sauvignon." Master's thesis, University of Zagreb, Faculty of Agriculture, 2017. https://urn.nsk.hr/urn:nbn:hr:204:031218

Franjo, Kristijan. "Utjecaj djelomične defolijacije na uvometrijske i mehaničke vrijednosti sorata Merlot i Cabernet sauvignon." Master's thesis, University of Zagreb, Faculty of Agriculture, 2017. https://urn.nsk.hr/urn:nbn:hr:204:031218

Franjo, K. (2017). 'Utjecaj djelomične defolijacije na uvometrijske i mehaničke vrijednosti sorata Merlot i Cabernet sauvignon', Master's thesis, University of Zagreb, Faculty of Agriculture, accessed 27 November 2024, https://urn.nsk.hr/urn:nbn:hr:204:031218

Franjo K. Utjecaj djelomične defolijacije na uvometrijske i mehaničke vrijednosti sorata Merlot i Cabernet sauvignon [Master's thesis]. Zagreb: University of Zagreb, Faculty of Agriculture; 2017 [cited 2024 November 27] Available at: https://urn.nsk.hr/urn:nbn:hr:204:031218

K. Franjo, "Utjecaj djelomične defolijacije na uvometrijske i mehaničke vrijednosti sorata Merlot i Cabernet sauvignon", Master's thesis, University of Zagreb, Faculty of Agriculture, Zagreb, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:204:031218

Metadata
TitleUtjecaj djelomične defolijacije na uvometrijske i mehaničke vrijednosti sorata Merlot i Cabernet sauvignon
Title (english)The effect of partial defoliation on the uvometric and mechanical values of Merlot and Cabernet sauvignon grapes
AuthorKristijan Franjo
MentorMarko Karoglan (mentor)
Committee memberMarko Karoglan (predsjednik povjerenstva)
Committee memberBernard Kozina (član povjerenstva)
Committee memberDarko Preiner (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Agriculture
(Viticulture and Enology)
Zagreb
Defense date and country2017-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Abstract
Defolijacija je jedan od zahvata zelene rezidbe. To je postupak prorjeđivanja ili potpunog uklanjanja listova u zoni grožđa. Vrijeme izvođenja zahvata djelomične defolijacije još uvijek je tema brojnih istraživanja. Ukoliko se provodi u periodu cvatnje, smatra se ranom, a između oplodnje i šare, smatra se kasnom defolijacijom. Cilj ovog rada bio je istražiti utjecaj djelomične defolijacije provedene u četiri različita termina (prije cvatnje i oplodnje, neposredno nakon cvatnje i oplodnje, fazi zatvaranja grozdova te razdoblju šare) na uvometrijske vrijednosti te mehanički sastav grozda sorata Merlot i Cabernet sauvignon u uvjetima Zagrebačkog vinogorja, podregije Prigorje-Bilogora. Rana defolijacija prije cvatnje i oplodnje imala je niže prinose i broj grozdova po trsu, koji je povezan sa boljom kvalitetom samog grožđa kod obje sorte. Defolijacija u fazi zatvaranja grozdova imala je najpovoljniji utjecaj na postotak mesa bobice i grozda, rezultirajući dobrom iskoristivošću grožđa kod obje sorte. Djelomična defolijacija u razdoblju šare bilježila je visoke prinose i broj grozdova po trsu što se odrazilo na smanjenu kvalitetu grožđa.
Abstract (english)
Defoliation is one of the canopy menagment treatment. It is a process of thinning or completely removing leaves of canopy grape zone. Perfect time to preform defoliation is still a topic of numerous researches. If it si carried out in the period of flowering, it is considered early, and in between fertilization and veraison, it is considered as late defoliation. The aim of this study was to investigate the influence of partial defoliation carried out in four different terms (before flowering and fertilization, immediately after flowering and fertilization, in the faze of berry set and in the period of veraison) on the uvometric values and the mehanical composition of grapes Merlot and Cabernet sauvignon in the condition of Zagreb vineyard, subregion Prigorje-Bilogora. Early defoliation before flowering and fertilization had lower yields and the number of grape clusters per vine, wich was correlated with higher quality of grapes in both varieties. It was established that defoliation in the stage of berry set had optimal effect on the percentage of meat in a cluster and berries, which resulted in good grape utilization of both varieties. The partial defoliation in the period of veraison recorded high yields and number of grape clusters per vine, wich reflected on reduced quality of grapes.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:204:031218
Study programmeTitle: Horticulture
Study programme type: university
Study level: graduate
Academic / professional title: magistar/ magistra inženjer/inženjerka hortikulture (magistar/ magistra inženjer/inženjerka hortikulture)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2017-12-04 13:47:37