University Of Tehran Press Pollution 2383-451X 9 4 2023 10 01 Evaluation of the phytotoxicity of a pesticide (TRACTOR 10E) based on Alpha-cypermethrin in two plant species: lentils (Lens culinaris) and watercress (Lepidium sativum) 1386 1395 93017 10.22059/poll.2023.356198.1812 EN Naamane Ayoub Laboratory of Ecology and Environment, Faculty of Sciences Ben M'Sik, Hassan II-University. Avenue Cdt.Driss El Harti, B.P.7955 SidiOthmane. Casablanca. Morocco 0000-0002-5382-2695 Lamraouhi Nawal Laboratory of Ecology and Environment, Faculty of Sciences Ben M'Sik, Hassan II-University. Avenue Cdt.Driss El Harti, B.P.7955 SidiOthmane. Casablanca. Morocco Rafii Soumaya Laboratory of immunogenetics and human pathologies, Faculty of Medicine and Pharmacy.Hassan II-University.Rue Tarik IbnouZiad. Casablanca. Morocco Iounes Nadia aboratory of Ecology and Environment, Faculty of Sciences Ben M'Sik, Hassan II-University. Avenue Cdt.Driss El Harti, B.P.7955 SidiOthmane. Casablanca. Morocco El Amrani Souad Laboratory of Ecology and Environment, Faculty of Sciences Ben M'Sik, Hassan II-University. Avenue Cdt.Driss El Harti, B.P.7955 SidiOthmane. Casablanca. Morocco Journal Article 2023 03 02 Tractor 10E is an Alpha-cypermethrin based insecticide. It is one of the commonly used insecticides. The toxic effect of this product was assessed using the Lens culinaris (edible lentil) and Lepidium sativum (watercress) test. The seeds of Lens culinaris and Lepidium sativum were subjected to 6 increasing concentrations of Tractor 10E (25, 50, 100, 200, 400 and 800mg/l) and the control (distilled water). After 7 days, weight, root and stem development were measured.The results of the statistical study revealed the notable effect of this toxic product on growth, especially at high concentrations for the two species which are the subject of plant toxicity tests. Stem length growth is the most sensitive parameter. IC50 is equal to 136.99mg/l for lentil and 136.42mg/l for watercress. The results of this study reveal that this alpha-cypermethrin insecticide has the ability to alter the growth of plants as non-target organisms, which imposes the effective use and management of these toxicants and even replacing them with biopesticides to preserve human health and the environment. https://jpoll.ut.ac.ir/article_93017_dc330aab96cc4ed0e85aadf5f23c0a4e.pdf