Identification of Barley Landraces and Wild Barley (Hordeum spontaneum) Genotypes Resistant to Rhynchosporium commune

Authors : Mohammad Reza AZAMPARSA, Aziz KARAKAYA, Namuk ERGÜN, İsmail SAYİM, Rukiye MURAT DURAN, Kürşad ÖZBEK
Pages : 530-535
Doi:10.15832/ankutbd.441916
View : 57 | Download : 14
Publication Date : 2019-12-05
Article Type : Research Paper
Abstract :Barley scald is caused by the fungal pathogen Rhynchosporium commune. This disease causes substantial losses  in barley production areas of the world. In this study, seedling resistance of 198 barley landraces, 104 wild barley  insert ignore into journalissuearticles values(Hordeum spontaneum); genotypes and two susceptible Turkish cultivars insert ignore into journalissuearticles values(Bülbül 89 and Efes 3); to 6 R. commune isolates  was assessed in greenhouse experiments. Virulence differences among the R. commune isolates were observed. One sixrowed  barley landrace insert ignore into journalissuearticles values(Yeşilköy 9052); was resistant to all six isolates. Another six-rowed barley landrace insert ignore into journalissuearticles values(genotype no  17); showed resistant reaction to 5 isolates. Fourteen barley landraces were resistant and susceptible to 4 and 2 isolates,  respectively. Twenty seven genotypes of H. spontaneum numbered as 5, 6, 7, 8, 9, 11, 16, 20, 30, 31, 36, 37, 48, 50, 51,  56, 58, 59, 60, 62, 67, 79, 80, 83, 90, 94 and 101 were found resistant to all six isolates of R. commune. Apart from these  genotypes, 19 genotypes numbered as 1, 2, 32, 33, 34, 42, 43, 49, 52, 64, 66, 76, 77, 78, 96, 97, 102, 104 and 107 showed  resistance to 5 isolates and susceptibility to only 1 isolate. Two susceptible Turkish cultivars Bülbül 89 and Efes 3 were  found susceptible to 96% of the scald isolates. Resistant barley landraces and Hordeum spontaneum genotypes can be  used as sources of resistance against R. commune.
Keywords : scald, Rhynchosporium commune, barley landraces, wild barley, Hordeum spontaneum, disease resistance

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