Klijavost sjemenki dobivenih križanjem sorata vinove loze funkcionalno ženskog cvijeta otpornom sortom 'Panonia'

master's thesis

• Title (english): Germination of seeds obtained by hybridization grapevine varieties with functionally female flower with resistant variety 'Panonia'
• Author: Daniela Motušić
• Mentor: Darko Preiner (mentor)
• Committee member: Darko Preiner (predsjednik povjerenstva)
• Committee member: Edi Maletić (član povjerenstva)
• Committee member: Jasminka Karoglan-Kontić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Viticulture and Enology); Zagreb
• Defense date and country: 2017-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Cilj oplemenjivanja je stvaranje novih sorata vinove loze koje su u točno određenom svojstvu
(svojstvima) poboljšane u odnosu na postojeće sorte. Oplemenjivanjem se rješavaju problemi
koji su vezani s proizvodnjom određene sorte u određenim uvjetima. Jedan od načina
stvaranja novih sorata je hibridizacija koja se temelji na kontroliranom oprašivanju i oplodnji
odabranih roditeljskih sorata. Jedan od problema u provođenju planske hibridizacije
predstavlja emaskulacija hermafroditnih cvjetova jer je vinova loza dominantno samooplodna
vrsta. Emaskulacija predstavlja zahtjevan i dugotrajan posao o čijem pravilnom izvođenju
ovisi uspjeh same hibridizacije. Jedan od načina da se izbjegne taj korak je korištenje sorata
sa funkcionalno ženskim cvijetom koji ne zahtjeva emaskulaciju zbog sterilnosti polena. Sorte
‘Grk’ (V.vinifera L.) i ‘Dišeća ranina’ (V.vinifera L.) autohtone su sorte koje imaju
funkcionalno ženski cvijet, a ujedno posjeduju i određena kvalitativna svojstva zbog kojih su
odabrane kao jedan od roditelja u ovoj hibridizaciji. Hibridizacija je provedena u dvije
kombinacije, a kao oprašivač korištena je sorta ‘Panonija’ koja posjeduje izrazitu otpornost na
bolesti. Obzirom da sorte ‘Grk’ i ‘Dišeća ranina’ daju vina izvrsne kvalitete, a sorta
‘Panonija’ posjeduje otpornost na plamenjaču (Plasmopara viticola), cilj je dobiti novu sortu
koja će davati vino dobre kvalitete, a pritom biti otporna na plamenjaču (Plasmopara
viticola). Kako bi se utvrdilo da li je određena sorta pogodna za korištenje u postupku
hibridizacije potrebno je ispitati klijavost sjemena koja ovisi o mnoštvu čimbenika. Isto tako,
potrebno je provesti evaluaciju otpornosti mladih biljaka na plamenjaču (Plasmopara
viticola).

Abstract (english)

The aim of breeding is creating new grapevine varieties which have improved specific
characteristic(s) compared to existing varieties. Breeding resolves problems related to the
production of specific variety in certain conditions. One of the methods used in creating new
varieties is hybridization, which is based on controlled pollination of chosen parent varieties.
One of the problems related to controlled crosses is emasculation of hermaphrodite flowers,
because grapevine is a dominantly self-pollinating plant. Emasculation is a demanding and
long-term work, and the success of hybridization in fact depends on it's careful execution.
One of the ways to avoid this step is using grapevine varieties with functionally female flower
which does not demand emasculation due to the sterility of pollen. ‘Grk’ (V.vinifera L.) and
‘Dišeća ranina’ (V.vinifera L.) are native grapevine varieties with a functionally female flower
which simultaneously possess certain qualitative characteristics because of which they were
chosen as one parent in this hybridization. Hybridization was done in two combinations and
the ‘Panonija’ variety, which is particularly resistant to diseases, was used as a pollinator.
Considering that the varieties ‘Grk’ and ‘Dišeća ranina’ yield wines of exquisite quality, and
that the ‘Panonija’ variety has great potential against downy mildew, the end goal is to create
a new variety which will make good wines, and still will be resistant to downy mildew. In
order to determine whether a specific variety is convenient for hybridization, it is necessary to
examine seed germination which depends on multiple factors. Also, resistance of seedling to
downy mildew should be evaluated.

• Keywords: hibridizacija; funkcionalno ženski cvijet; klijavost sjemena; otpornost na plamenjaču
• Keywords (english): hybridization; functionally female flower; seed germination; resistance to downy mildew
• Language: croatian
• URN:NBN: urn:nbn:hr:204:022807
• 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
• Created on: 2017-11-27 11:27:17