Clonal selection of grape was launched in 1985 at the operative section in Arezzo of the former of Experimental Institute for Viticulture currently the Research Unit for Viticulture of the Council for Research in Agriculture (C.R.A.). Studies focused on the search for putative clones of the most popular varieties in central Italy, carrying out detailed investigations in old vineyards in different wine-producing districts of Tuscany, initially in Maremma and later in Montepulciano, Montalcino, San Gimignano and Chianti (Armanni et al., 2010). Beginning in 1990, some experimental vineyards were established with the progenies of the clones, which were tested for their health and evaluated for their vegetative and productive characteristics.
Storchi et al. (Mon,) studied this question.
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