The effect of different planting density and diurnal variability on the yield and quality of Isparta oregano (Origanum minutiflorum O. Schwarz et P.H. Davis)

This study was carried out in the trial field of Eskişehir Osmangazi University Faculty of Agriculture in 2023. The fresh herb, fresh leaf, dry herb and dry leaf yields of the oregano plant grown at 08:00, 13:00 and 18:00 during the day at 08:00, 13:00 and 18:00 during the day, of the thyme plant grown in 40x20, 50x20 and 50x30 row spacing without pesticide application under dry conditions in Eskişehir were measured and also the essential oil rate was measured. has been examined. Fresh herb yield was measured as 849.9 kg/da at 08:00 at a maximum of 40x20 cm plant density and 253.3 kg/da at 13:00 at a minimum plant density of 50x30 cm. The maximum fresh leaf yield was determined as 163.0 kg/da at 08:00 harvest at 40x20 cm plant density, and the minimum value was 81.90 kg/da at 18:00 harvest at 50x30 cm plant density.