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dc.contributorRehman, Sajiden_US
dc.contributorAmouzoune, Mariamen_US
dc.contributorKehel, Zakariaen_US
dc.contributorTsivelikas, Athanasiosen_US
dc.contributorVerma, Ramesh Pal Singhen_US
dc.contributorAmri, Ahmeden_US
dc.creatorHiddar, Houdaen_US
dc.identifier.citationHouda Hiddar, Sajid Rehman, Mariam Amouzoune, Zakaria Kehel, Athanasios Tsivelikas, Ramesh Pal Singh Verma, Ahmed Amri. (7/4/2017). Evaluation of diverse sets of barley germplasm for resistance to scald disease (Rhynchosporium secalis). Rabat, Morocco.en_US
dc.description.abstractBarley is one of the most important field crop in the drylands of North Africa and West Asia region. It has multiple uses (food, feed and malt) and is known for its better adaptation to drought and salinity. However, its productivity is affected by a large number of diseases and insect pests. Leaf Blotch, also known as scald, is one of the most destructive diseases of barley (Hordeum vulgare L.), caused by the haploid imperfect fungus Rhynchosporium secalis. Scald is widely distributed throughout the world and can cause 40% reduction in grain yield. The use of resistant cultivars remains to be the most effective, economical and environmental friendly way to control the disease but the genetic resistance to Moroccan isolates is poorly understood and only few sources of resistance have been identified. This study aims at the identification of new and effective sources of resistance to scald within various subsets: Best bet subset selected using the Focused Identification of Germplasm Strategy (FIGS; 80 accessions), reference set identified within the Generation Challenge Program (GCP; 204 accessions), and an association mapping panel (284 accessions) developed by ICARDA breeders. All the accessions were sown and evaluated at seedling stage under controlled conditions. We have found that of the 568 barley accessions tested, 78 barley genotypes (14%) were found to be resistant, 86 genotypes (15%) to be moderately resistant, 104 genotypes to be susceptible, and 103 accessions (18%) to be highly susceptible, respectively. Most of the resistant accessions (125; 22%) showed immune reaction. These new sources of resistance will be a useful resource for resistance barley breeding programs around the world.en_US
dc.publisherInternational Center for Agricultural Research in the Dry Areas (ICARDA)en_US
dc.titleEvaluation of diverse sets of barley germplasm for resistance to scald disease (Rhynchosporium secalis)en_US
dc.typeConference Paperen_US
cg.creator.idKehel, Zakaria: 0000-0002-1625-043Xen_US
cg.creator.idTsivelikas, Athanasios: 0000-0001-6267-5079en_US
cg.creator.idVerma, Ramesh Pal Singh: 0000-0002-2621-2015en_US
cg.creator.idAmri, Ahmed: 0000-0003-0997-0276en_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.crpCRP on Dryland Cereals - DCen_US
cg.contributor.funderArab Fund for Economic and Social Development - AFESDen_US
cg.contributor.projectSustainability and Operation of the Regional Research Centers in a Number of Arab Countries (Phase II)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
dc.identifier.statusOpen accessen_US

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