SELECTION OF İNİTİAL MATERİAL RESİSTANT TO POWDERY MİLDEW İN WHEAT PLANT
The article is on evaluation of more than 1,000 wheat genotype samples introduced in CYMMIT(International Maize and Wheat Improvement Center) in 2014-2015 selected for resistance to powdery mildew disease in Absheron SES and 220 resistant wheat genotypes were selected. In addition, in the study local wheat varieties also were used. As a result of the research, 30 resistant samples were selected from the 220 wheat genotypes introduced in 2016-2018. Protein content, humidity, plant height, 1000 seeds weight and productivity were studied with standard varieties comparatively in initial materials.In order to study effect of powdery mildew to productivity and quality indicator, research was conducted in two variants-treated (Tilt, 25%) and artificially infested variants. The experiment was carried out in 4 repeats in 1m2. The study presents an average cost of three-year damage to the productivity, 1000 seeds weight and quality indicators of introduced Morocco and local Nurlu-99, Mirbashir-128 and Murov (2016-2018) wheat varieties. The decrease of productivity from the effects of powdery mildew disease depends on the rate of infection, the developmental phase of the disease, and the duration of the disease.