Harvest timing and nitrogen fertilization alter the production of biomass and antioxidant compound in the parsley

Parsley is a plant widely used in cooking as condiment and it has potential for pharmaceutical use due to flavonoids production, including the apiin, which antioxidant activity. The current study investigates influence of N fertilization on biomass soluble fractions, total apiin parsley plants at 28 56 days after germination (DAG). experiment was carried out greenhouse under different levels: nitrogen free (control), 10 kg ha-1 (10 planting, without cover application N) 70 planting 60 cover). production fractions influenced by harvest timing fertilization. flavonoid levels were lower DAG effect. highest detected treatments with Thus, time yielded concentration and, therefore, less costs Key words: Petroselinum crispum, nitrate, flavonoids, Apiin, Apiaceae