FRIDA ÇARKA1*, ADRIATIK ÇAKALLI2
1Institute of Plant Genetic Resources, Agricultural Univers ity of Tirana /Address: “Siri Kodra” St, 132/1, Tir ana, Albania
2 Institute of Plant Genetic Resources, Agricultural Univers ity of Tirana /Address: “Siri Kodra” St, 132/1, Tirana, Albania
Grapevine powdery mildew is one of the most common diseases of grapevine. The varieties of Vitis vinifera specie are generally susceptible to powdery mildew, Uncinula necator. During the years 2013-2018 was estimated the susceptibility to powdery mildew (Uncinula necator) of ten local grape cultivars, AGB 3399, AGB 3418, AGB 3427, AGB 3448, AGB 3403, AGB 3410, AGB 3461, AGB 3460, AGB 2087, AGB 3402, at national collection of grapevine genetic resources, in Valias. The resistance degree was estimated according to OIV codes and Descriptor for grapevines. The results showed that two accessions, AGB 3448 and AGB 3427 have high resistance degree to powdery mildew, five accessions, AGB 2087, AGB 3402, AGB 3460, AGB 3410, AGB 3399 have medium resistance degree to powdery mildew and three accessions AGB 3418, AGB 3461, AGB 3403 have low resistance degree or very low degree to powdery mildew. These results will serve to recommend the farmers to spread the varieties with high resistance degree of powdery mildew (Uncinula necator). This study will serve as a good basis for the genetic improvement work of native grapevine cultivars.
Keywords: accession; grapevine; genetic resources.