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¹ National Botanical Garden of Türkiye, Plant Protection, Ankara, Türkiye
² Bursa Uludağ University, Faculty of Agriculture, Horticulture, Bursa, Türkiye
³ Tekirdağ Namık Kemal University, Faculty of Agriculture, Plant Protection, Tekirdağ, Türkiye DOI : 10.52001/vis.2023.19.41.55 Viewed : 1295 - Downloaded : 1071 Downy mildew caused by oomycete Plasmopara viticola, is one of the most damaging grapevine diseases. This disease can be found in all parts of the grapevines (Vitis vinifera L.) and causes quality and yield losses. Intensive spraying has been done in the vineyards against this disease for many years and the effectiveness of the fungucides used against this disease is gradually decreasing. For this reason, studies on the determination of disease-resistant Vitis species have increased in Türkiye as in the whole world. In this context, 1006 genotypes (59 Vitis vinifera, 47 V. labrusca, 1 V. rotundifolia, 899 interspecific crosses) were evaluated for their resistance to downy mildew disease. 20 genotypes (V. vinifera) among them were tested only under natural infection conditions, while 67 (21 V. vinifera, 34 V. labrusca, and 12 interspecific crosses) were tested both under natural infection and by artificial inoculation. The resistance of 919 genotypes (18 V. vinifera, 13 V. labrusca, 1 V. rotundifolia, 887 interspecific crosses) was determined by artificial inoculation only. In this review, the resistance tests of genotypes performed by different researchers in Türkiye are summarized by considering the inoculation conditions of Vitis spp and the pathogen. The changes in phenolic compounds of different genotypes before and after the disease were also included in the study. At the same time, this study will make important contributions to researchers who will conduct research on resistance to downy mildew in grapevines. Keywords : Plasmopara viticola Downy mildew Vitis spp. Resistance Grapevine Genotypes