Streszczenie:

Oregano is a valuable essential oil and spice plant from the Lamiaceae family that has a history of thousands of years and was a symbol of nobility, courage and wealth in ancient times. This study was carried out to determine the agronomic characteristics of some oregano genotypes (Origanum sp.) in Kahramanmaras central conditions. The study was established according to the randomized block design with 3 replications using five different oregano genotypes (Denizli 1, Denizli 2, Oguz variety, Origanum majorana L. and Antalya genotype). Plant height, green herba yield, drog herba yield, green leaf ratio, drog leaf ratio, drog leaf yield, the drug leaf/stem ratio and essential oil ratio values were examined in thyme genotypes that underwent the necessary agricultural maintenance and had a year of establishment. In the study, two cuttings were made from thyme genotypes in one season and when the average values of the two cuttings were examined; plant height was determined as 38.02 - 50.07 cm, total green herb yield was 1158.44 - 2641.94 kg da^-1, drog herb yield was 495.22 - 917.16 kg da^-1, green leaf ratio was 61.40-70.06%, drog leaf ratio was 57.55 - 63.47%, drog leaf yield was 134.21 - 582.40 kg da^-1, the drug stem ratio was determined as 36.52-42.44% and the essential oil ratio was determined as 1.92 - 4.29%. According to the study results, Antalya genotype stood out in terms of green herb, drug herb and essential oil yield, while Denizli 1 genotype had higher values in terms of essential oil ratio.