Abstract
The study was conducted in randomized complete block design with four replications at two locations (Sanliurfa and Diyarbakir) under rainfall conditions during 2013-2014 growing season. The purpose of the study is to determine the bread wheat genotypes with high yield, large adaptation ability and high grain quality. Twenty advanced bread wheat lines and five check varieties were used as material. The data were evaluated by using variance and GGE-biplot analysis methods. Significant differences among genotypes were determined for test weight (TW), thousand grain weight (TGW), grain yield (GY) and heading time (HT) at the significant level of 1%, while, less significant levels (p<5%) were found for wet gluten content (WG), zeleny sedimentation (ZS) and protein content (PR). According to GGE-biplot analysis results, positive correlations were determined between TW and TGW, and also PR, WG and ZS. It has also been determined that there is a negative relationship between HT and TW, TGW. According to the stability graph, the genotypes of G23 and G8 were found to be highly efficient and moderately stable and both could be candidate varieties. Additionally, Dinç variety and G11 advanced line can be used as genitor in bread wheat breeding programs for grain yield and quality.
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