Trebbiano is one of the most widely planted varieties of grape in the world. It gives good yields, but tends to yield undistinguished wine. It can be fresh and fruity, but does not keep long. Its high acidity makes it important in Cognac and Armagnac productions. Also known as Ugni blanc, in particular in France, it has many other names reflecting a family of local subtypes, particularly in Italy and France.
An Italian study published in 2008 using DNA typing showed a close genetic relationship between Garganega on the one hand and Trebbiano and several other grape varieties on the other hand. It is therefore possible that Garganega is one of the parents of Trebbiano, however, since the parents of Garganega have not been identified, the exact nature of the relationship could not be conclusively established.
During a series of trials between 1924 and 1930, Trebbiano was crossed with Gewürztraminer to create the pink-skinned Italian wine grape variety Manzoni rosa. Also, in the early 21st century, DNA analysis has suggested that there may be a close genetic relationship between Trebbiano and the Emilia-Romagna wine grape Alionza.