Determination of performances of old and new registered bread wheat varieties (Triticum aestivum L.) with different geographic origin for grain yield and quality characteristics in thrace region

The study was carried out with a total of 20 bread wheat varieties including 13 newly registreted and 7 obsolete varieties as a randomized block design with 3 replications during 2016-2017 growing season in Tekirdağ, Kırklareli-Lüleburgaz and Edirne locations. The averages of grain yield, and yield components such as plant height, spike length, number of spikelets per spike, number of grains per spike, grain weight per spike, harvest index and thousand grain weight of the bread wheat varieties examined changed from 515,2 kg da-1 to 830,8 kg da-1, 73,0 cm to 102,1 cm, 8,75 cm to 10,77 cm, 18,4 to 22,55 unit, 33,70 to 52,90 unit, 1,721 to 2,327 g, 39,77% to 50,87% and 41,50 ile 53,26 g, respectively. Glosa, NKÜ Lider, Delebrad 2, Saban, Maden, Yüksel, Köprü, Maya and Bora have been the new varieties that attract attention in terms of grain yield and yield components. Wet gluten content, gluten index, zeleny sedimentation value, ratio of gluten to protein, ratio of sedimentation to protein and protein content averages of the bread wheat varieties used ranged between 26,33% ile 37,89%, 70,9 and 92,6, 31,78 ml and 62,89 ml, 2,14 and 2,64, 2,57 and 4,38, and 12,26% and 15,20%, respectively. It has been determined that bread-making quality of the new varieties of Enargo, Saban, NKÜ Ergene, Lazarka, Deya is better than other varieties. In the light of the evaluation of yield and bread-making quality characteristics, Glosa, Maden, Saban, Lazarka, Yüksel, Delebrad 2, NKÜ Ergene, Enargo, Köprü ve NKÜ Lider were found to be high performance varieties compared to other varieties. It was concluded that these lines could be considered as a candidate of bisquit variety and sent for the formal registration process. It is concluded that these varieties will be the most appropriate varieties for the production of bread wheat in other ecologically appropriate regions of our country, especially in Thrace region.