Graciano is a Spanish red wine grape of ancient origin and has been grown all around the Mediterranean under various synonyms. It is not particularly productive, due to low fertility, small clusters, and small berries, but there has been increased interest in this variety because its fruit quality potential is high, even when grown in warm or hot climates. Its acidity, tannins, and aroma are particularly notable.
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Black Spanish is an interspecific hybrid (Vitis aestivalis x Vitis vinifera L.) red wine grape variety that’s Pierce’s Disease (Xylella fastidiosa) tolerant. Vines are moderate vigor with an upright growth habit and large leaves. In Texas, Black Spanish is productive, producing deeply colored red wines often finished in a Port style. Downy mildew can be a problem under humid, wet conditions. In the U.S., Black Spanish is also known as Lenoir, but in Europe is it primarily known as Jacquez.
Ségalin is a red wine grape (Vitis vinifera L.) variety from France that was selected from a planned cross of the varieties Jurançon noir and Portugais made in 1957 by Paul Truel. Robinson et al. (2012) described the vines as having low vigor in warmer climates, but vigor and yields were adequate in a San Joaquin Valley trial, a hot climate region. Berries accumulate very high anthocyanin content, and make deeply-colored wines, even in the San Joaquin Valley. Bunch rot was a problem in some years.
Teroldego is an Italian red wine grape of ancient origin. It has compact clusters with medium to large berries. The berries have high anthocyanin content, even in warm climates, and wines are typically fruity, with soft tannins (D’Agato, 2014). Good fruit and wine quality and adaptability to warm and hot climate regions have increased interest in Teroldego in California and elsewhere.
Durif arose from a natural cross of Peloursin and Syrah in the 1860s in France. Vines have low to moderate vigor and moderate yield potential. Durif berries have high anthocyanin and tannin content, even when grown in warm climates. The berries are prone to sunburn and shrivel, and the clusters to bunch rot. However, these issues can be managed to some extent with appropriate cultural practices. Durif wines are typically dark-colored and full-bodied.
Solbrio is an early-season black-skinned table grape (Vitis vinifera L.). Solbrio vines produce large berries with a crunchy texture and full color without the need for plant growth regulators. Berry taste is sweet and neutral. This variety is licensed exclusively to the California Table Grape Commission.
This article describes a selection of Bonarda (FPS 02), a red wine variety available from Foundation Plant Services, at the University of California Davis. A planting at the UC Kearney Agricultural Center, in Parlier, California, a hot-climate region, produced low to moderate yields of fruit from which excellent quality red wines were consistently produced.