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dc.contributorAbdalla, Osmanen_US
dc.contributorOgbonnaya, Francis Chuksen_US
dc.contributorNazari, Kumarseen_US
dc.contributorTahir, Izzaten_US
dc.contributorBaum, Michaelen_US
dc.creatorTadesse, Wuletawen_US
dc.date2012-05-01en_US
dc.date.accessioned2020-11-19T23:02:33Z
dc.date.available2020-11-19T23:02:33Z
dc.identifierhttps://mel.cgiar.org/dspace/limiteden_US
dc.identifier.citationWuletaw Tadesse, Osman Abdalla, Francis Chuks Ogbonnaya, Kumarse Nazari, Izzat Tahir, Michael Baum. (1/5/2012). Agronomic Performance of Elite Stem Rust Resistant Spring Wheat Genotypes and Association among Trial Sites in the Central and West Asia and North Africa Region. Crop Science, 52 (3), pp. 1105-1114.en_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/12067
dc.description.abstractThe new stem rust race Ug99 is an alarming threat to the wheat (Triticum aestivum L.) production of the world for the very fact that it overcomes many of the known Sr genes including the most commonly used genes such as Sr31, ST24, and Sr36. The wheat breeding program at the International Center for Agricultural Research in the Dry Areas (ICARDA) has distributed the first stem rust resistant spring wheat yield trials composed of 24 wheat genotypes for the Central and West Asia and North Africa (CWANA) region to identify high yielding wheat genotypes, which can be recommended for direct release and/or parentage purposes by the National Agricultural Research Systems (NARSs). The additive main effects and multiplicative interaction (AMMI) analysis of variance for grain yield (kg ha(-1)) of 24 wheat genotypes tested in 15 environments showed that wheat grain yield was significantly (p < 0.01) affected by environments (E), genotypes (G), and genotype x environment interaction (GEI). From the total sum of squares due to treatments (G + E + GEI), E contributed 90.1% and GEI accounted for 8.3% while G effect represented only 1.6%. According to AMMI2 estimate, Baasha-14 and Amir-2 with mean grain yield levels of 5168 and 5127 kg ha(-1), respectively, are identified as the best genotypes with high yield potential across a wide range of environments. Based on correlation and clustering analysis among environments, the Ghab site in Syria (E7) is identified as the highest yielding and best correlated site and therefore it is recommended as a key location for evaluation of wheat germplasm yield potential in ICARDA's wheat breeding program. We recommend the high yielding and Ug99 resistant genotypes identified in this study for direct release as replacement of the susceptible varieties by the respective NARS and/or to be used as parents at ICARDA and by NARS collaborators.en_US
dc.languageenen_US
dc.publisherCrop Science Society of Americaen_US
dc.rightsCopyrighted; all rights reserveden_US
dc.sourceCrop Science;52,Pagination 1105,1114en_US
dc.subjectagronomic performanceen_US
dc.subjectrust resistant spring wheaten_US
dc.subjectWheaten_US
dc.titleAgronomic Performance of Elite Stem Rust Resistant Spring Wheat Genotypes and Association among Trial Sites in the Central and West Asia and North Africa Regionen_US
dc.typeJournal Articleen_US
cg.creator.idTadesse, Wuletaw: 0000-0003-1175-3502en_US
cg.creator.idAbdalla, Osman: 0000-0003-1123-6257en_US
cg.creator.idNazari, Kumarse: 0000-0001-9348-892Xen_US
cg.creator.idBaum, Michael: 0000-0002-8248-6088en_US
cg.creator.ID-typeORCIDen_US
cg.creator.ID-typeORCIDen_US
cg.creator.ID-typeORCIDen_US
cg.creator.ID-typeORCIDen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.crpCGIAR Research Program on Wheat - WHEATen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.date.embargo-end-dateTimelessen_US
cg.coverage.regionGlobalen_US
cg.contactW.Tadesse@cgiar.orgen_US
dc.identifier.statusTimeless limited accessen_US
mel.impact-factor1.878en_US


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