Ali Kareem. Allelopathy of Root exuded of Two Sunflower Cultivars (Helianthus annuus L.) on weed companion. JWSM [Internet]. 2023 Aug. 15 [cited 2026 Jul. 24];11(1):146-60. Available from: https://jwsm.uowasit.edu.iq/index.php/jwsm/article/view/449