Ergebnisse von Kreuzungen zwischen Vitis amurensis und <i>Vitis vinifera</i> in der Züchtung frostwiderstandsfähiger Reben
DOI:
https://doi.org/10.5073/vitis.1975.14.1-5Abstract
Die Erfahrungen aus fast 20 Jahren lassen folgende Feststellungen zu:
- Vitis amurensis bietet ein wertvolles Genmaterial für die Herstellung frostresistenter Rebsorten.
- Ihr Wert wird - außer durch Frostresistenz - auch durch Plasmopara-Hypersensitivität einiger ihrer Formen erhöht.
- Durch wiederholte Rückkreuzungen können die Resistenzeigenschaften von V. amurensis mit den Qualitätseigenschaften der Kulturformen kombiniert werden. Die Frühreife ermöglicht es, in jedem Jahr gute Mostqualitäten zu erzielen.
Wir hoffen, in den folgenden Jahren aus unseren BC2 -Populationen weitere Formen von guter Frostresistenz, Botrytis-Resistenz, Plasmopara-Hypersensitivität und Qualität hervorbringen zu können, bei denen die Pflanzenschutzmaßnahmen bedeutend eingeschränkt werden können.
Results of crossing Vitis amurensis and Vitis vinifera in breeding frost resistant grapes
From a twenty years' experience it can be concluded that:
- Vitis amurensis presents a valuable gene material for breeding frost resistant grape varieties,
- besides by frost resistance, its value is also increased by Plasmopara hypersensitivity of some of its forms,
- the resistance characteristics of V. amurensis can be combined with the must quality of some cultivated forms by repeated back crossing. Early maturity makes it possible to get permanently good must qualities.
In the following years, we hope that we will succeed in producing from our BC, populations further forms of good frost resistance, Botrytis resistance, Plasmopara hypersensitivity, and of high must quality. Thus plant protection measures can be widely reduced.
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