Powdery mildew resistance in Serbian barley genotypes

Abstract

Powdery mildew caused by Blumeria graminis f. sp. hordei is very common barley disease in Serbia. Therefore, lot of effort is put into the breeding for resistance to this pathogen. In this study, collection of Serbian barley genotypes consisted of 172 genotypes, was evaluated for the resistance to B. graminis f. sp. hordei. The assessment was done repeatedly in the field trial, once a week, from growth stages 69 to 71. Types of infection and intensity of infection were determined. Coefficient of infection was calculated using the formula of the Levine and Basile, 1959. Furthermore, the Area Under Disease Progress Curve - AUDPC was determined.