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¹ GAP Uluslararası Tarımsal Araştırma ve Eğitim Merkezi Müdürlüğü, Diyarbakır
² Artuklu Üniversitesi Kızıltepe Meslek Yüksekokulu, Mardin DOI : 10.21566/tarbitderg.359162 - This study was carried out to identify the superior properties of durum wheat lines in 2012–2013 and 2013–2014 growing season in Diyarbakir ecological conditions. Five standard varieties and 20 lines were used as research material. The experiment was established as a randomized complete block design technique with four replications and grain yield, thousand grain weight, hectoliter weight, protein content, grain color and SDS value were evaluated. According to the research results significant differences were recorded between genotypes, years and genotype x year interaction regarding all parameters. In the Biplot graphics formed with obtained values, many lines showed superiority regarding their protein ratio, semolina color and SDS values which represent the quality parameters. According to the two-year averages, promising genotypes having high grain yield and high quality characteristics were taken to the regional yield trials for further evaluation in the registration phase. Keywords : Biplot, durum wheat, quality, yield