Устойчивость ячменя озимого к основным болезням в условиях западной лесостепи Украины

Abstract

The results of three years of research on the influence of meteorological factors on the degree of damage to winter barley varieties by basic diseases are presented. The immunological monitoring of variety samples of the collection of this culture was carried out in the conditions of the Western Forest-Steppe of Ukraine. It was found that the most common diseases during 2017–2019 years were: powdery mildew, dark brown spottingand dwarf rust. The nature of development and the spread rate of the main diseases in crops of winter barley were mainly determined by the biological and genetic characteristics of the variety specimens. The studies conducted allowed us to identify varietal samples that have group resistance to major diseases under adverse weather conditions. It should be noted that the variety specimens: Wintmalt, Gerard, Mikhail, Akademichesky, Nivsky, Vavilonhad group resistance to powdery mildew and dark brown spotting. The varietal specimenswith group resistance to powdery mildew and dwarf rust were revealed: Mikhail, Mugurel, Existenz, Wintmalt, Gerard, Larec,HOS 20604, Camanehe. The specimens: Wintmalt, Gerard, Mikhail had group resistance to powdery mildew, dark brown spotting, and dwarf rust. The selected varieties with group resistance to the main diseases of winter barley were recommended for breeders to create disease-resistant varieties.

Keywords

• hordeum vulgare
• winter barley
• varietal specimens
• disease resistance
• powdery mildew
• dark brown spotting
• dwarf rust