Albert Seibel was a French physician and viticulturist who made hybrid crosses of European wine grapes with native North American grapes. His crosses are known as Seibel grapes.
Hybrid grapes are grape varieties that are the product of a crossing of two or more Vitis species. This is in contrast to crossings between grape varieties of the same species, typically Vitis vinifer
The hybrid grape variety Marechal Foch.
The hybrid grape Merzling created by a crossing Seyve-Villard 5276 with a cross Riesling × Pinot gris.
Example of a breeder castrating all flowers of a grapevine cluster.
The Vitis aestivalis hybrid grape Norton.