Phytopathological evaluation of resistance to the main fungal diseases of grapes varieties and forms

The research is about the phytopathological evaluation of more than 200 grape varieties and forms in the natural background in the western part of Azerbaijan (Tovuz Supporting Point). As a result of the phytopathological evaluation against the background of mildiu disease in the leaves and bunches of grape varieties and forms, 12 varieties of grape was evaluated by 0 immune points, 1 resistant variety 2-2.5 points, 12 varieties tolerant 3-3.5 points, 138 varieties with no resistance 4-4.5 ball, and finally 33 varieties were evaluated as least resistant (5 points). Among these varieties, have been found the grape varieties (138 species) with less tolerance (4-4.5 points). As a result of the phytopathological evaluation against natural odium disease in leaf and bunches, 12 varieties were found as of 0 immune points, 2 resistant varieties 2-2.5 points, 17 tolerant varieties 3-3.5 points, 102 less resistant varieties 4-4.5 balls and finally 63 varieties were evaluated as the least resistant (5 points). During the phytopathological evaluation of Oidium disease, grape genotypes with high-resistance (1-1.5 points) response were not found. Here less resistant (4-4.5 points) grape varieties (101 varieties) were found. As a result of the phytopathological evaluation against the gray rot disease in fruits and bunches of grape in the natural background, 12 varieties were evaluated with 0 immune points, 12 resistant varieties 2-2.5 points, 140 varieties as resistant 3-3.5 points and 32 varieties were evaluated as less resistant (4-4.5 points). 140 grape varieties with the most tolerance have been found (3-3.5 points). As a result of the phytopathological evaluation against anthracnose disease in leaf and bunches, 12 varieties were evaluated with 0 immune points, 30 resistant varieties 2-2.5 points, 148 tolerant varieties 3-3.5 points and 6 varieties were found as less resistant (4-4.5 points) . During the phytopathological evaluation of anthracnose disease.

милдью, оидиум, серая гниль, фитопатологическая оценка, антракноз, естественный фон, mildew, oidium, gray rot, phytopathological evaluation, anthracnose, natural background