Determination of the reactions of some barley (Hordeum vulgare L.) landraces and cultivars to Drechslera graminea

Reactions of 20 landraces and three cultivars of barley ( Hordeum vulgare L.) to leaf stripe disease were evaluated under greenhouse conditions. Ten Drechslera graminea isolates collected in ten locations of Turkey were used for inoculation using the sandwich method. Phenotypic variation to leaf stripe disease was observed in the responses of landraces and cultivars of barley with the same and different isolates of the fungus. Barley landraces #3 and #5 exhibited resistance and susceptibility to eight isolates of the fungus, respectively. Barley cultivar Cumra 2001 showed a resistant reaction to all isolates. Cultivars Atilir and Larende were susceptible to 9 isolates. Virulence differences were observed among the fungal isolates. The D. graminea Konya (Bozkir) isolate was the most virulent while Ankara (Haymana) isolate was the least virulent. This research shows that barley landraces and cultivars could be a rich source of phenotypic variability against current strains of D. graminea found in barley production areas of Turkey. Resistant cultivar and landraces could be used in breeding programs.