Determination of yield and yield characteristics of some sweet fennel (Foeniculum vulgare mill.var.dulce) populations

This research was carried out to determine the yield and yield characteristics of some sweet fennel (Foeniculum vulgare Mill. var. dulce) populations obtained from different regions in Yozgat ecological conditions. The experiment was established in Yozgat Bozok University, Faculty of Agriculture, Research and Application Area in the vegetation period of 2019, according to the random blocks trial pattern with 3 replications. In the study, emergence of four different sweet fennel populations, branching, flowering, fruit-linking and ripening period, plant height, number of branches per plant, number of umbels per plant, number of umbellet per plant, number of seeds per plant, seed yield per plant, thousand seed weight, biological yield, seed yield, essential oil ratio, essential oil yield were investigated. According to the results of the research, the plant height of fennel is 48.33-59.56 cm, the number of branches in the plant is 5.00-5.96, the number of umbels per plant is 8.96-14.00, the number of umbellet per plant is 81.33-163.83, the number of seeds per plant is 741.07-967.33; seed yield 8.52-13.60 g per plant; one thousand seed weight 3.82-7.435 g biological yield 708.70-1972.00 kg/da seed yield, 67.96-198.43 kg/da essential oil ratio 3- 4.20% essential oil yield 5.35-15.06 L/da was observed. According to the results of the research, it has been concluded that the population of Tokat was found to have outstanding characteristics in terms of seed yield and essential oil yield.