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Interspecific crossing

interspécifique croisement (F)
interspecific crossing, interspecific variety (GB)

Term for a crossing between two grape varieties of different species. These are combinations between the European Vitis vinifera and an American or an Asian species. But also crosses between two different ones American (e.g. Vitis labrusca x Vitis rupestris ) or Asian (for example Vitis amurensis x Vitis coignetiae ) or between American and Asian species (e.g. Vitis amurensis x Vitis riparia) are interspecific crosses (inter = between). As a rule, only interspecific crossing products are used in common usage hybrids designated.

interspecific crossing - Seyval Blanc x Chardonnay = Chardonel

The crossing result of different grape varieties of the same species, for example of two varieties of the only European species Vitis vinifera, is called intraspecific crossing (intra = inside). For example, the intraspecific intersection Riesling x Madeleine Royale the variety Müller-Thurgau result. These crossings are also strictly speaking hybrids, although they are hardly called that.

On the other hand, a cross between genera is called an intergeneric cross ; for example between the two Vitis subgenera Vitis subg. Vitis and Vitis subg. Muscadinia (see under Muscadinia ). However, this happens relatively rarely because crossings are very difficult due to the different numbers of chromosomes. One example is the new breeding of the rootstock Nemadex Alain bouquet,

In the case of interspecific crossings, according to EU Regulation Vitis vinifera portions may be included. Whether such varieties also for quality wine or country wine are the responsibility of the member states. See under Quality wine-grape varieties; such as Vines systematics and breeding,

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