Tuscany is Italy's third most vine-planted region (behind Sicily and Apulia) but it is eighth in terms of output, reflecting both its poor soil and deliberate efforts to limit yields but increase the quality of the wine. After Piedmont and Veneto, Tuscany produces the third-highest volume of DOC/DOCG wines. More than 80% of the regions' production is in red wine, with the Sangiovese grape being Tuscany's' most prominent grape. Chianti, Chianti Classico, Brunello di Montalcino, Vino Nobile di Montepulciano and Super Tuscan are Tuscany’s best known wines, while Trebbiano is the leading white variety of the region.