Determination of yield and quality levels of some bread wheat

This experiment was carried out in Çanakkale Onsekiz Mart University, Faculty of Agriculture, Dardanos Research and Practice Unit at 2005-2006 winter growing period. The experiment was arranged in a randomized complete block design with three replications and used 20 bread wheat varieties. The objective of this study was to determine the yield and quality performances of some bread wheat cultivars obtained from the Agricultural Research Institutes located in different regions of Turkey, in Çanakkale conditions. Data were collected on some agronomic characteristics such as, plant height, spike length, spike weight, number of spikelets per spike, kernel weight per spike, days to heading, and grain yield per decare. Also, some kernel and flour quality characteristics were measured such as, kernel moisture, test weight, 1000 kernel weight, amount of gluten, gluten index, sedimentation and modified sedimentation. Significant differences were detected among the genotypes for all of the measured traits except moisture content. According to the results of experiment, the highest yield per decare was measured in Pehlivan. Pamukova cultivar had higher avarage of sedimentation test, modified sedimentation and gluten index value whic were important quality characters, than the other cultivars in trial. It was determined significant correlations among the measured characters. It was determined that kernel number per spike, spike weight and kernel weight per spike had effect with together plant height and moisture content on yield. It was seem that there is negative correlations among the quality characters and yiled. Consequently, it was understood that it must be regarded for selection of used cultivar not only yield but also quality characters in commercial cultivation and breeding studies. It was determined that it could be receommended Flamura-85, Gelibolu and Pamukova which are used cultivars from trial, as good quality and avarage yield cultivars for Çanakkale region. Key Words : Bread wheat, grain yield, quality, gluten.