Effects of fertilizer type on phenolic compounds, essential oil content, and biological activities of Coriandrum sativum L.

Organic and inorganic fertilizers play an important role in improving the nutritional quality of coriander plant (Coriandrum sativum L.). This study consists of 3 different fertilizer applications to coriander: Control-T0 (no fertilizer); organic fertilizer- T1 (300-600 mL/da); chemical fertilizer-T2 (2-3 L/da); vermicompost-T3 (1.5 L/da). It was conducted in three replicates in a randomized block design to evaluate the effect of different fertilizer applications on the morphological, biochemical and antioxidant potential of coriander plants. It has been observed that fertilizer applications have a significant effect on the morphological, biochemical and antioxidant properties of the plant, and especially in the coriander of seeds organic fertilizer and vermicompost applications have higher phenolic and flavonoid contents (1.82, 2.14 mg GAE/g DW and 2.57, 2.46 mg QE/g DW, respectively). In the GC-MS analysis, linalool was determined as the main compound and the highest concentration of 76.44% was obtained as a result of organic fertilizer application. Antioxidant potential was evaluated by DPPH radical-scavenging assay and the most effective antioxidant activity was determined from organic origin fertilizer (organic-IC50: 27.35±2.52 µg/mL, vermicompost-IC50: 29.42±2.41 µg/mL) applications.