Bazı arpa çeşitlerinin ve ileri kademe arpa hatlarının Rhynchosporium commune ’a fide dönemi tepkilerinin belirlenmesi

Seedling reactions of 25 advanced barley lines and 5 barley cultivars to one virulent isolate of Rhychosporium commune were determined under greenhouse conditions. Cultivar Avci 2002 was found highly resistant and cvs Kalayci 97 and Bulbul 89 were found susceptible. Barley cultivars Karatay 94 and Efes 3 exhibited a highly susceptible reaction to R. commune . Among the advanced lines, 9 was the most resistant genotype. Barley lines 3, 7, and 11 showed a moderately resistant reaction to the isolate. Genotypes 1, 2, 4, 6, 10, 13, 16, 18, 19, 20, 24, and 25 were susceptible and genotypes 5, 8, 12, 14, 15, 17, 21, 22, and 23 were highly susceptible to the R. commune isolate. Cultivar Avci 2002 and advanced barley lines 3, 7, 9, and 11 could be used as resistance sources.