Özet:

The aim of this research was to determine the forage yield performance and some morphological characteristics of nine different prairie grass (Bromus catharticus Vahl.) line in the conditions of Tekirdağ and Edirne. The experiments was carried out in randomized complete block design with three replications at the experimental areas of Field Crops Department of Agricultural Faculty of Tekirdağ Namık Kemal University and Directorate of Trakya Agricultural Research Institute in 2015-2016 years. Morphological characters such as main stem lenght, main stem thickness, internode lenght, main stem node number, flag leaf width and lenght with hay and fresh yield were investigated in the study. Differences among lenght of main stem, thickness of main stem, internode lenght, node number of main stem, lenght of flag leaf, width of flag leaf, fresh and hay yields of the prairie grass lines were found to be statistically very significant. The lenght of main stem varied between 72.57-99.05 cm in Tekirdag location and 94.36-111.73 cm in Edirne location. The thickness of the main stem varied between 1.58-2.33 mm in Tekirdag location and 2.57-4.52 mm in Edirne location. Internode lenght varied between 9.95-13.26 cm in Tekirdag location and 14.09-22.30 cm in Edirne location. The node number of main stem varied between 3.93-4.67 in Tekirdag location and 3.47-4.60 in Edirne location. Lenght of flag leaf varied between 23.76-26.40 cm in Tekirdag location and 17.46-26.40 cm in Edirne location. Width of flag leaf varied between 4.93-8.90 mm in Tekirdag location and 2.84-4.85 mm in Edirne location. Fresh yield of linesvaried between 2.208,57-3.521,27 kg da-1 in Tekirdağ 2.567,73-4.032,06 kg da-1 in Edirne conditions. Hay yield of lines varied between 638.89-956.07 kg da-1 in the conditions of Tekirdağ, and 739.24-1.075,44 kg da-1 in the conditions of Edirne. The highest fresh and hay yield was determined from 197848 line in Edirne location and from 217583 and 197848 lines in the location of Tekirdağ where the research was conducted. Based on the results of this study, prairie grass lines 197848 and 217583 can be suggested for cultivation in the Thrace part of Turkey.