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Ampelografske in tehnološke značilnosti tolerantnih sort vinske trte iz trsnega izbora Republike Slovenije v letu 2020
Švajger, Anže (Author), Rusjan, Denis (Mentor) More about this mentor... This link opens in a new window

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Abstract
Žlahtna vinska trta (Vitis vinifera L.) je občutljiva na pepelovko vinske trte (Erysiphe necator (Schwein.) Burrill), peronosporo vinske trte (Plasmopara viticola (Berk. & M.A. Curtis) Berl. & De Toni) in sivo grozdno plesen (Botrytis cinerea Pers.). Nekatere samorodne ameriške in azijske sorte in vrste so skozi evolucijo razvile tolerantnost ali celo odpornost za naštete glive. Prvi križanci oziroma potomci tovrstnih trt niso bili toliko tolerantni na te glive, kot so si žlahtnjitelji želeli oziroma pričakovali. Veliko težavo pa je predstavljala tudi »foxy« aroma, ki je značilna za ameriške samorodne vrste. S povratnimi križanji z žlahtno vinsko trto (Vitis vinifera L.) so dosegli, da v pridobljenih križancih prevladuje genom žlahtne vinske trte. V Sloveniji je bilo v okviru introdukcije preizkušenih tudi nekaj interspecifičnih sort, to so sorte 'Johanniter', 'Solaris', 'Muscaris', 'Souvignier gris', 'Fleurtai', 'Soreli' in 'Merlot Kanthus', ki se jih bo v letu 2020 tudi vpisalo v trsni izbor RS. Po večletnem spremljanju naštetih sort v slovenskih razmerah, je najboljše rezultate pokazala sorta 'Johanniter', ki kaže največjo tolerantnost za glive pepelovke in peronospore vinske trte. Za večino medvrstnih križancev je značilno, da ima količina pridelka skozi leta zelo velika nihanja, kar je tudi največja težava. Kljub tolerantnosti je potrebno vinograd zasajen z medvrstnimi križanci tretirat s fitofarmacevtskimi pripravki, vendar v manjšem obsegu kot pri integrirani pridelavi grozdja in vina.

Language:Slovenian
Keywords:vinska trta, sorta, tolerantnost, ampelografija, tehnološke značilnosti
Work type:Bachelor thesis/paper (mb11)
Tipology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Year:2020
Publisher:[A. Švajger]
UDC:634.8:631.526.32:631.524.86(043.2)
COBISS.SI-ID:27828995 This link opens in a new window
Views:327
Downloads:102
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Secondary language

Language:English
Title:Ampelographic and technological characteristics of tolerant grapevines varieties in vine selection of Slovenia in year 2020
Abstract:
European grapevine (Vitis vinifera L.) is susceptible to powdery mildew (Erysiphe necator (Schwein.) Burrill), downy mildew (Plasmopara viticola Berl. Et de Toni) and grey mould (Botrytis cinerea Pers.). Several Vitaceae species from North America and Asia, throughout evolution, have developed resistance mechanisms against some fungi. First grapevine hybridsor offsprings of such vines were not as tolerant to these fungi as breeders wanted or expected. The most frequent problem was »foxy« aroma typically for American Vitis species. With several backcrossing with European grapevine (Vitis vinifera L.) they achieved that in the obtained hybrids the genome of European grapevine prevailed. In Slovenia some interspecific varieties 'Johanniter', 'Solaris', 'Muscaris', 'Souvignier gris', 'Fleurtai', 'Soreli' and 'Merlot Kanthus' were introduced, and in 2020 their inscription in the Vine selection is expected. After several years of introduction under Slovenian climate conditions the variety 'Johanniter' has shown the most tolerance to fungi of powdery mildew and downy mildew. Generally, the yield of most interspecific varieties varied among vintages causing the biggest problem. Despite the fact that vineyard planted with interspecific varieties are tolerant to certain fungi they have still to be treated with pesticides, but on a smaller scale, like vineyards in integrated pest management.

Keywords:grapevine, variety, resistance, ampelography, technologic characteristics

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