| flavor of cold-hardy grapes: impact of berry maturity and environmental conditions. | since the arrival on the market of high-quality cold-hardy grape varieties, northern winemaking has been developing tremendously in countries traditionally unsuited for grape and wine production. cold-hardy grapes are mainly interspecific hybrids of vitis vinifera with vitis labrusca and vitis riparia , making their chemical composition distinct from that of v. vinifera varieties traditionally used for winemaking and therefore limiting the use of current knowledge about v. vinifera varieties in ... | 2013 | 24151907 |