The effect of powdery mildew disease on productivity and quality indicators of wheat

Abstract

The article deals with the study of the damage caused by powdery mildew to the productivity and quality of wheat. In recent years, the development of various fungal diseases in wheat has increased, depending on favorable conditions. This has a serious impact on the decline in productivity and quality. At present, in most grain-growing regions of the country, powdery mildew continues to increase its aria. Numerous studies have shown that the degree of damage caused by powdery mildew during the growing season to the productivity of wheat samples depends on the stage at which it begins to develop and the level of infection. The research was conducted at the Absheron SEB of Research Institute of Crop Husbandry and three local regionized bread wheat varieties — Nurlu-99, Mirbashir-128, Murov and one introduced Morocco variety susceptible to fungal diseases were used as the object of research in order to study the damage caused by powdery mildew to productivity. Morocco variety 9 (95%), Nurlu-99 variety 7 (50%), Mirbashir-128 variety 8 (85%) and Murov variety were infected with 8 points (70), which led to a decrease in productivity. The experiments were performed in treated and infected variants, in 1 m² in 4 replication. As a result of the experiments, it was found that the Moroccan variety was infected more quickly with powdery mildew, in the tillering stage, Nurlu-99 variety at the end of the heading stage, Mirbashir-128 variety in the booting stage, and Murov variety at the beginning of the heading stage. Powdey Mildew disease has reduced the productivity of the studied varieties, affecting the mass and quality of 1000 kernel weight. As a result of severe infection, crop losses were 31-35%.