INVESTIGATION OF SALINITY TOLERANCES OF SOME ANNUAL GRASS TYPES IN VIVO

The aim of present study; determination of the salt tolerance of annual grass cultivars in vivo pot experiment. In the study, 25 registered grass varieties were used as material. Salt concentrations of 150 mM NaCl were applied to determine the response of annual grass varieties to salt stress. Root length, shoot length, root-shoot fresh weight and root-shoot dry weight were examined in vivo pot experiment. In the characteristics examined in the pot experiments, two stages were examined: first cutting and second cutting and plant height, shoot fresh weight and shoot dry weight values were examined in salt and control applications. In terms of these examined characteristics, the lowest value in the first cutting control group was obtained from Quickston and Vallivert varieties, while the highest value was obtained from Rambo, Tetra and Ration varieties. Again, in the first form salt application, the lowest value was obtained from Quickston and Vallivert varieties, while the highest value was obtained from Devis, Baqueno and Hellen varieties. In the second cutting control group, the lowest value was obtained from Quickston, Venus varieties, while the highest value was obtained from Rambo, Baqueno, Vallivert varieties. Again, in the second form salt application group, the lowest value was obtained from Kartetra, Quickston, Efe varieties, and the highest value was obtained from Teanna, Jako, Master varieties. As the result of present study, the obtained variation among the annual grass varieties used in the study can be used both in the grass application and in breeding programs.