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dc.contributorGummadov, Nurberdyen_US
dc.contributorAkin, Beyhanen_US
dc.contributorBelen, Savasen_US
dc.contributorMert, Zaferen_US
dc.contributorTaner, Seyfien_US
dc.contributorTopal, Alien_US
dc.contributorYazar, Selamien_US
dc.contributorMorgounov, Alexeyen_US
dc.contributorSharma, Ramen_US
dc.contributorÖzdemir, Fatihen_US
dc.creatorKeser, Mesuten_US
dc.identifier.citationMesut Keser, Ram Sharma, Beyhan Akin, Zafer Mert, Fatih Özdemir, Nurberdy Gummadov, Savas Belen, Seyfi Taner, Ali Topal, Selami Yazar, Alexey Morgounov. (3/12/2017). Genetic gains in wheat in Turkey: winter wheat for dryland conditions. Crop Journal, 5(6), pp. 533-540.en_US
dc.description.abstractWheat breeders in Turkey have been developing new varieties since the 1920s, but few studies have evaluated the rates of genetic improvement. This study determined wheat genetic gains by evaluating 22 winter/facultative varieties released for rainfed conditions between 1931 and 2006. The study was conducted at three locations in Turkey during 2008-2012, with a total of 21 test sites. The experimental design was a randomized complete block with 4 replicates in two years and 3 replicates in the other years. Regression analysis was conducted to determine genetic progress over time Mean yield across all 21 locations was 3.34 t ha-1, but varied from 1.11 t ha-1 to 6.02 t ha-1 and was highly affected by moisture stress. Annual genetic gain was 0.50% compared to Ak-702, or 0.30% compared to the first modern landmark varieties. The genetic gains in drought-affected sites were 0.75% compared to Ak-702 and 0.66% compared to the landmark varieties. Modern varieties had both improved yield potential and tolerance to moisture stress. Rht genes and rye translocations were largely absent in the varieties studied. The number of spikes per unit area decreased by 10% over the study period, but kernels spike-1 and thousand kernel weight increased by 10%. There were no significant increases in harvest index, grain size, or spike fertility, and no significant decrease in quality over time. Future use of Rht genes and rye translocations in breeding programs may increase yield under rainfed conditions.en_US
dc.sourceCrop Journal;5,(2017) Pagination 533,540en_US
dc.subjectseed yielden_US
dc.subjectrainfed wheat productionen_US
dc.titleGenetic gains in wheat in Turkey: winter wheat for dryland conditionsen_US
dc.typeJournal Articleen_US
cg.subject.agrovocwinter wheaten_US
cg.subject.agrovocgenetic gainen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerInternational Maize and Wheat Improvement Center - CIMMYTen_US
cg.contributor.centerTransitional Zone Agricultural Research Instituteen_US
cg.contributor.centerMinistry of Food, Agriculture and LIvestock of Turkeyen_US
cg.contributor.centerBahri Dagdas International Agricultural Research Instituteen_US
cg.contributor.centerSelcuk University, Faculty of Agricultureen_US
cg.contributor.centerField Crops Central Research Instituteen_US
cg.contributor.crpCRP on Wheat - WHEATen_US
cg.contributor.funderGovernment of Turkeyen_US
cg.contributor.projectInternational Winter Wheat Improvement Programen_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionWestern Asiaen_US
dc.identifier.statusOpen accessen_US

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