Kizilgeci, FerhatYildirim, MehmetAkinci, CumaAlbayrak, Onder14.07.20192019-07-1614.07.20192019-07-1620192619-9149https://dx.doi.org/10.18016/ksutarimdoga.vi.499013https://hdl.handle.net/20.500.12514/1234The purpose of this study was to determine genotype and environment effects on the grain yield and its component of some barley genotypes in Diyarbakir and Mardin conditions in 2011-2012. In the study, 2 commercial varieties and 5 advanced lines were used as a material. Grain yield, thousand grain weight, test weight, protein content, starch content and SPAD value were measured. Results varied between 413.60-661.63 kg da(-1) for grain yield, 42.21-45.02 g for thousand grain weight, 58.92-66.39 kg hl(-1) for test weight, 11.70-14.24 % for grain protein content, 59.8-61.2 % for grain starch content and 44.4-48.6 unit for SPAD value. Altikat sustained the highest grain yield in both locations. DZA-7, DZA-8 and Dicle 1 advanced lines showed high performance in terms of protein contents, starch content and test weight. When all traits were evaluated using the Biplot analysis, grain yield, thousand grain weight and SPAD were involved in the same group, while protein content, starch content, test weight were grouped in the other group.tr10.18016/ksutarimdoga.vi.499013info:eu-repo/semantics/openAccessBarleyBiplotProtein contentSPADGrain yieldArticle223346353N/AWOS:000467972100001