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The study was carried out in randomized block design with 20 advanced lines with soft grain structure by developed Eskisehir Agricultural Research Institute and 4 standard wheat genotypes in Hamidiye and Karabayir locations of Eskisehir Province in the 2014-2015 growing period. The solvent retention capacity (SRC) tests (sodium carbonate (5%), sucrose (50%), lactic acid (5%) and distilled water) and gluten performance index (GPI) were investigated for 20 lines and 4 standard varieties in the study. According to the results of the analysis of variance regarding SRC tests and GPI, the differences between the genotypes, locations and their interaction averages were found to be statistically significant. The fact that the size of the variation between locations is higher than the genotype and interaction variances indicates that there are significant differences between the locations selected for the study, and the low interaction variance shows that the locations are correctly selected for the studied genotypes and their number is sufficient. For SRC tests used in soft wheat milling and biscuit quality determination, it was determined that the genotype and location effects were greater than the genotype x location interaction effects. The mean values of genotypes ranged between 86.68% and 112.83% for lactic acid SRC, 79.95% and 89.29% for sucrose SRC, 79.52% and 94.83% for sodium carbonate SRC and 58.18% to 65.14% for water SRC. The genotypes taken into the study in terms of GPI had averages varying between 0.49 and 0.66. Considering the obtained SRC tests and GPI reference values, it was determined that BIS-19 could be the line with the best biscuit performance. The BIS-2, BIS-11, BIS-13 and BIS-16 were other promising lines for biscuit quality performances. In addition, BIS-9, BIS-17, BIS-22 and BIS-8 have been promising lines that can be evaluated in breeding studies for biscuit quality.

Araştırma, 2014-2015 yetiştirme döneminde Eskişehir İli Hamidiye ve KarabayırlokasyonlarındaEskişehir Geçit Kuşağı Tarımsal Araştırma Enstitüsü tarafından geliştirilmiş olan yumuşak tane yapısına sahip 20 ileri hat ve 4 standart çeşit olmak üzere toplam 24 ekmeklik buğday genotipi ile tesadüf blokları deneme desenine göre 4 tekrarlamalı olarak yürütülmüştür.Denemeye alınan bisküvilik buğday genotiplerinin tane verimi ile başaklanma gün sayısı, bitki boyu ve bin tane ağırlığı gibi verim komponentleri ortalamaları sırasıyla 200,0kg da-1 ile 442,5kg da-1, 138,75 ile 143,00 gün, 83,96 ile 110,10 cm ve 32,67 ile 48,61 g arasında değişmiştir.Araştırmada materyal olarak kullanılan bisküvilik buğday genotiplerinin hektolitre ağırlığı, tane sertliği, C-SDS değerleri, protein oranı, zelenysedimentasyon değeri, kül oranı, laktik asit STK, sakkaroz STK, sodyum karbonat STK ve su STK ortalamaları sırasıyla 82,40 kg hl-1 ile 75,25 kg hl-1, % 17,08 ile % 39,68, 5,06 ile 8,63 ml, % 11,75 ile % 12,75, 20,63 ml ile 33,00 ml, % 0,478 ile % 0,610, %86,68 ile %112,83, %79,95 ile %89,29, % 79,52 ile % 94,83 ve % 58,18 ile % 65,14 arasında değişim göstermiştir. Yapılan değerlendirmeler ışığında tane verimi ve kalite özellikleri birlikte değerlendirildiğinde ise, BİS-1, BİS-2, BİS-3, BİS-17, BİS-18, BİS-19, BİS-22 ve BİS-23 hatları diğer bisküvilik hatlara göre yüksek performansa sahip olmuşlardır. Bu hatların tescil öncesi denemeye alınabileceği sonucuna varılmıştır.Anahtar kelimeler: Ekmeklik buğday, tane verimi, bisküvilik kalitesi, solvent tutma kapasitesi, protein oranı, sedimentasyon değeri2019,98 sayfa The study was carried out with a total of 24 bread wheat genotypes including 20 advanced lines developed by EskişehirGeçitKuşağı Agricultural Research Institute and 4 standard varieties with soft grain structure as a randomized block design with 4 replications during 2014-2015 growing season in Hamidiye and Karabayır locations of Eskişehir province.The averages of grain yield, days to heading, plant height and thousand grain weight of the bisquit wheats examined ranged from 200,0kg da-1to 442,5kg da-1, 138,75 days to 143,00 days, 83,96 cmto 110,10 cm and 32,67 to 48,61 g, respectively.Test weight, grain hardness, C-SDS values, protein ratio, zeleny sedimentation value, ash ratio, lactic acid SRC, sucrose SRC, sodium carbonate SRC and water SRC averages of the biscuit wheat genotypes used ranged between 82,40 kg hl-1 to 75,25 kg hl-1, 17,08% to 39,68%, 5,06 mlto 8,63 ml, 11,75% to 12,75%, 20,63 ml to 33,00 ml, 0,478% to 0,610%, 86,68%to 112,83%, 79,95%to 89,29%, 79,52%to 94,83%and 58,18%to 65,14%, respectively.Inthelight of theevaluation of yieldandqualitycharacteristics, BIS-1, BIS-2, BIS-3, BIS-17, BIS-18, BIS-19, BIS-22 and BIS-23 werefoundto be highperformancelinescomparedtootherbiscuitlines. Itwasconcludedthattheselinescould be considered as a candidate of bisquitvarietyand sent fortheformalregistrationprocess.Keywords: Breadwheat, grainyield, bisquitquality, solventretationcapacity, protein ratio, sedimentationvalue2019, 98 sayfa 112