Determination of downy mildew and powdery mildew resistance of some grape cultivars

摘要: Different grape cultivars of Vitis species have been cultivated in Turkey since ancient times. A large proportion these cannot be the humid regions country due to downy mildew (Plasmopara viticola) and powdery (Uncinula necator or syn. Erysiphe necator) diseases. Cultivars resistant diseases can generally grow without any fewer fungicide applications. However, there are also differences resistance level cultivars. In particular, vinifera cultivars, most widely cultured species, affected by Thirteen V. eight labrusca six interspecific were used this study, for a total 27 The against was determined over two years with natural infection artificial inoculation Generally, all showed more mildew, while they lower mildew. evaluation based on found sensitive. While Among same however, terms observed. These breeding studies order obtain new, disease-resistant which may grown commercially comply good agricultural practices (GAP) organic viticulture future.