Determination of yield, yield components, glutenin and gliadin patterns of bread wheat (Triticum aestivum L.) genotypes

？This study was carried out at the Ankara University, Faculty of Agriculture, Haymana Research and Application Farm during 2007-2008 and 2008-2009 growing seasons. In this research, the aim of this study was to determine the variation of yield and some of the yield components that affect yield on different varieties in two years. The experiments were conducted with four replications in randomized complete block design with 17 bread wheat varieties. In terms of climate conditions, the two growing cycles in which the study was conducted were considerably different compared to average of long years. The results obtained for the analyzed parameters per year were significantly different; therefore, the years were separately evaluated. The differences among the varieties in relation to all characteristics taken into account were found out to be important so the varieties were grouped. According to minimum and maximum values of the varieties for the first year and second year respectively, fertile spike number per square meter ranged from 253.8 to 385.0 and it varied from 306.3-532.5, number of fertile spikelets per spike 13.85-20.03 and 15.60-20.20, number of grain per spike 22.58-43.75 and 26.18-50.43, grain weight per spike 0.818-1.626 g and 1.090-2.253 g, grain yield 127.5-192.2 kg da-1 and 219.2-420.2 kg da-1, 1000 kernel weight 28.08-34.12 g and 33.36-45.23 g. Band 2* (in 11 varieties), band 1 (in 4 varieties) and no band (in 2 varieties) on Glu-A1 locus have been determined. Bands 7+8 (in 10 varieties), bands 7+9 (in 3 varieties), bands 17+18 (in 3 varieties) and band 7 (in one variety) on Glu-B1 locus have been determined. Bands 5+10 (in 11 varieties), bands 2+12 (in 6 varieties) on Glu-D1 locus have been determined