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¹ Tarla Bitkileri Merkez Araştırma Enstitüsü Müdürlüğü, Ankara
² Ege Tarımsal Araştırma Enstitüsü Müdürlüğü, İzmir DOI : 10.21566/tarbitderg.280332 - With the objective of evaluating promising oat cultivars suited to coastal area of Aegean Region in terms of yield and quality parameters, the research was conducted using randomized block design and two trials with four replications in the fields of Aegean Agricultural Research Institute and Nazilli Cotton Research Station in 2010-2011 growing season. Trials have been have been established in the form of oat yield trials in both locations, the combined analysis was also applied to locations. The aim of this study was to determine of the performances of new varieties developed by breeding studies in terms of grain yield and quality. In the study, grain yield, tousand kernel weight, test weight, kernel size, protein, fat, starch, dietary fibre, β-glucan, ash rate were investigated. Oats Regional Yield Trial (YBVD) unified in locations, results obtained in grain yields 279.2-625.3 kg/da, 18.8-35.8 g, test weight 40.3-55.6 kg/hl, thousand kernel weight 31.0-41.0 g, 2.2 mm remaining on the percentage of oats 26.0-83.5%, protein 13.7-17.4%, fat 4.6-87%, dietary fibre 8.9- 12.9%, β-glucan 11-2.6%, ash ratio 33-4%. In the trial, grain yield in the 12^th, 17^th, hectoliter weight in the 17^th, thousand kernel weight 14^th, kernel size in the 22^th, protein content in the 13^th, fat composition in the 12^th, amount of starch in the 12^th, dietary fibre ratio in the 10^{th, beta glucan value in the18th lines showed superior yield and quality characteristics.} Keywords : Oat, Avena sativa L., grain yield, line, variety