M. Sultan, S., ساجدة and A Abood, S. 2025. Role of Ascorbic Acid in the Initiation and Growth of Helianthus annuus L. Callus under Salt Stress Conditions. Rafidain Journal of Science. 30, 4 (Jun. 2025), 1–18. DOI:https://doi.org/10.33899/rjs.2021.169978.