Stiinta Agricola (Dec 2019)
Мучнистая роса пшеницы озимой в условиях западной лесостепи Украины
Abstract
The production of winter wheat grain is one of the strategic directions for strengthening the Ukrainian economy, but in recent years the yield potential of this crop has not been fully utilized in connection with the defeat of crops by phytopathogens. Winter wheat diseases significantly reduce yield and grain quality. Losses of gross grain harvest from diseases annually amount to 20–30 %, and in epiphytotic years 50 %. Consequently, the study of new varieties of winter wheat for resistance to powdery mildew in the conditions of the Western ForestSteppe of Ukraine is relevant. According to the results of our research, winter wheat varieties have a different degree of resistance to powdery mildew. The variety Vodograi Belotserkovsky is more affected by the disease, somewhat less – Obereg Mironovsky, and Mydrost’ Odesskaya showed the highest disease resistance. It should be noted that the largest losses from this disease were in 2019, which was favorable for the disease and, depending on the variety, they ranged from 1,8 % to 8,2 %. The harmfulness of powdery mildew on the variety Vodograi Belotserkovsky cultivar favorable to the disease over the years of research was 6,8–8,2 %, and in the relatively resistant variety Mydrost’ Odesskaya – 1,2-1,8 %.
