Evaluation of Durum Wheat (Triticum durum L.) Genotypes Based on Agronomic Characters and Quality Parameters

Durum wheat is affected by environmental conditions such as rainfall and temperature during grain filling period in Trakya region and causes biotic and abiotic stress factors and low quality in grain. This is the main constraint in durum wheat production in the region. The experiment was carried out with 30 genotypes in randomized complete block design with 4 replications in Edirne in 2014-2015 and 2015-2016 growing season. Grain yield, days of heading, plant height, leaf rust, thousand kernel weight, test weight, protein content, and relationships among those characters were investigated. According to the results significant differences among genotypes were found based on studied characters. Mean yield of the genotypes was 516.1 kg da-1 . The highest yield with 611.3 kg da-1 was determined in CDSS02Y390S-27 line. The highest 1000- kernel weight (47.1 g) in TE01772-12 and test weight (85.9 kg) in TE01732-21 lines were determined. The mean protein content was 13.2%, highest protein values were determined with 15.1% in TE01772-12 line and with 14.6% in Zenit cultivar. The highest quality values were determined in 12, 9 and 2 lines and 11, 13 and 14. This result shows that it is possible to reach a high protein ratio in suitable varieties in Trakya region. In this research it was determined that there were significant negative correlation between grain yield with days of heading (r=-0.436*), significant and positive correlation between 1000-kernel weight (r=0.372*), and test weight (r=0.494*). Days of heading were negatively correlated with test weight (r=-0.411*). It was found a negative relationship between plant height and grain hardness (r=-0.491**). A positive and significant relation was determined between 1000-grain weight and grain hardness (r=0.556**). High quality values were determined in some genotypes in the study. These results show that Edirne location in Trakya region has suitable environmental conditions for high quality value.