Yield of biomass and essential oil of dill (Anethum graveolens L.) grown under irrigation

Abstract

Dill (Anethum graveolens L.) is a one-year herbaceous, spicy plant, which has aromatic smell and taste. One of its important ingredients is essential oil. The experiment showing the effect of irrigation on essential oil and biomass yield of dill was conducted in rainy 2016 and dry 2017 in two variants: control (without irrigation) and variant with irrigation. Favourable water balance of the soil was provided by applying drop-by-drop irrigation method. The average yield of fresh biomass was 8,252 kg ha-1 (10,194 kg ha-1 under irrigation and 6,310 kg ha-1 in control). Under irrigation, the yield of biomass was higher than the control variant by 78.59% in 2017 and 47.41% in 2016. Under irrigation, essential oil content and yield were higher than the control by 10.73% and 95.97% in 2017, respectively, and 3.93% and 54.06% in 2016, respectively.