[01] Hussein A. H. Said-Al Ahl, Department of Medicinal and Aromatic Plants, National Research Centre, Dokki, Giza, Egypt. [02] Atef M. Z. Sarhan, Department of Ornamental Horticulture, Faculty of Agriculture, Cairo University, Cairo, Egypt. [03] Abou Dahab M. Abou Dahab, Department of Ornamental Horticulture, Faculty of Agriculture, Cairo University, Cairo, Egypt. [04] El-Shahat N. Abou-Zeid, Department of Medicinal and Aromatic Plants, National Research Centre, Dokki, Giza, Egypt. [05] Mohamed S. Ali, Department of Medicinal and Aromatic Plants, National Research Centre, Dokki, Giza, Egypt. [06] Nabila Y. Naguib, Department of Medicinal and Aromatic Plants, National Research Centre, Dokki, Giza, Egypt.

Dill (Anethumgraveolens L., Apiaceae) is a plant species often cultivated for the flavouring and curative properties (digestive disturbances accompanied by meteorism, flatulence and gastro-intestinal spasms, urinary infections, insomnia, galactogenicalhypo secretion, etc). Some studies demonstrated the antimicrobial, stomachic, antioxidant, carminative properties of dill. In order to establish the flavonoids content of different dill parts (herb, umbles, stems and leaves)pre-sowing seeds were irradiated with gamma radiation doses (0, 2, 4, 8, 16, 32 and 64 k-rad) with or without bio-fertilizers (at 2 kg/fed.). The recorded results showed that in the two seasons, using bio-fertilizer or gamma radiation doses significantly increased total flavonoids content, the most effective treatment on the total flavonoids content in different plant parts was 64 k-rad with bio-fertilizers which recorded higher flavonoids content. Also, the highest percentage of flavonoids was obtained from umbels followed by vegetative herb then flowering herb, whereas stems and leaves at flowering stage gave the lowest percentage of flavonoids

Anethum Graveolens L., Bio-Fertilizer, Flavonoids, Gamma Radiation

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