Utjecaj navodnjavanja na prinos i kvalitetu grožđa sorte 'Babić' na kultiviranom tlu krša

master's thesis

• Title (english): Effect of irrigation on yield and quality of grape variety 'Babić' grown on reclaimed karst land
• Author: Ivan Nižić
• Mentor: Jasminka Karoglan Kontić (mentor)
• Committee member: Jasminka Karoglan Kontić (predsjednik povjerenstva)
• Committee member: Darko Preiner (član povjerenstva)
• Committee member: Monika Zovko (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Viticulture and Enology); Zagreb
• Defense date and country: 2019-09-18, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

'Babić' je autohtona sorte vinove loze sjeverne Dalamcije koja se koristi u proizvodnji visokokvalitetnih crnih vina. Tradicionalno se uzgaja bez navodnjavanja na poznatim položajima u okolici Primoštena, gdje daje najbolje rezultate.
Zadnjih godina sorta se uzgaja i na površinama dobivenim agrotehničkim melioracijama krša. Takova tla su nižeg vodenog kapaciteta zbog visokog udjela kamena u mehaničkom sastavu. Poznato je da na ovom tipu tala nije moguć rentabilan uzgoj vinove loze bez primjerene brige o dostupnosti vode za navodnjavanje. U ovom radu istražen je utjecaj različitih razina navodnjavanja na prinos i kvalitetu ove sorte. Primijenjene su tri razine navodnjavanja: varijanta I (50 % evapotranspiracije), varijanta II (75 % evapotranspiracije),varijanta III (100 % evapotranspiracije) i kontrola (bez navodnjavanja),
Tijekom vegetacijske sezone provedeno je ukupno pet uzorkovanja od početka šare pa do berbe. Kako bi se dvije istražene godine mogle usporediti uzorkovanja su obavljena u datumski približnim terminima. Ispitan utjecaj različitih razina navodnjavanja na sadržaj šećera, ukupna kiselost grožđa, a poseban naglasak stavljen je na sastav pojedinačnih polifenolnih spojeva grožđa. Istraživanje je provedeno na području vinogorja Šibenik, odnosno na položaju Donjeg Polja (Jadrtovca). Pokusom je pokazano da različit intenzitet navodnjavanja na različite skupine spojeva utječe drugačije. S druge strane, na neke spojeve navodnjavanje nije uopće utjecalo. Utvrđeno da postoji značajno pozitivno odstupanje sadržaja antocijana kod kontrolnih varijanti u odnosu na sve druge varijante u obje istraživane godine. Suprotno je utvrđeno za najvišu razinu navodnjavanja (III) korištenjem podataka iz obje godine istraživanja. Značajna razlika utvrđena je između kontrole i najviše razine navodnjavanja u slučaju flavanola, a u slučaju flavonola razlika nije bila značajna.

Abstract (english)

“Babić” is an indigenous grapevine variety from North Dalmatia. It is used in the production of high-quality red wines. It is traditionally grown without irrigation in well-known locations near Primošten, in which it gives the best results.
In the last few years, cultivation of this variety has been carried out on the surfaces obtained by karst land improvement. Such soils are characterized by lower water capacity because of the high proportion of stone in the mechanical composition. It is known that it is impossible to have viable grapevine cultivation without proper care on the availability of water for irrigation. This paper presents the research on the effect of different levels of irrigation on the yield and quality of this variety. The applied levels of irrigation are the control (without irrigation), variant I (50% evapotranspiration), variant II (75% evapotranspiration) and variant III (100% evapotranspiration).
During the vegetation season, a total of five samplings was carried out from the beginning until the harvest. To compare the two years of research, samplings were performed in almost the same periods of the year. We researched the effect of different irrigation levels on sugar content, total acidity of grapes, putting the particular emphasis on the composition of individual polyphenolic compounds of grapes. The study was carried out in the area of the vineyard Šibenik, i.e. in the position of Donje Polje (Jadrtovac). The experiment showed that different irrigation intensity has a different effect on different groups of compounds. On the other hand, some compounds were not affected by irrigation at all. It has been found that there is a significant positive difference in the content of anthocyanins in control variants compared to all other variants in both years of research. However, the opposite was established for the highest level of irrigation (III) using data from both years of research. The significant difference was found between the control and the highest level of irrigation in the case of flavanol, and in the case of flavonol, the difference was not significant.

• Keywords: navodnjavanje; 'Babić'; polifenoli; meliorirani krš
• Keywords (english): irrigation; 'Babić'; polyphenols; karst land
• Language: croatian
• URN:NBN: urn:nbn:hr:204:494237
• 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
• Repository: Repository Faculty of Agriculture University of Zagreb
• Created on: 2019-11-08 09:06:54