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Rahimi Mballo1*, Amadou Tidiane Sall1, Madiama Cissé1 and Fatimata Diop2
1Senegalese Institute for Agricultural Research, Saint-Louis Agricultural Research Center
(ISRA/CRA Saint-Louis), P.O. Box 240, Saint-Louis, Senegal
2Laboratory of Botany and Biodiversity, Department of Plant Biology, Faculty of Science and
Technology, Cheikh Anta Diop University, P.O. Box 5005, Dakar-Fann, Senegal.
Email: rahim.mballo@gmail.com
Received-18.08.2026, Revised-06.09.2026, Accepted-24.09.2026
Abstract: The objective of this study was to characterize the weed flora of irrigated wheat and to evaluate the efficacy, selectivity, and agronomic performance of chemical weed control strategies in Fanaye, Senegal, in 2022 and 2023. A randomized complete block design comprising five treatments and four replicates was used. The flora inventory identified 35 species belonging to 20 botanical families, including 26 broadleaf weeds, six Poaceae, and three Cyperaceae. Three treatments combining pendimethalin at 1.5 L/ha with different doses of 2,4-D were compared to manual weeding and an untreated control. Treatment T3 provided the best weed control but caused greater phytotoxicity. Treatment T1, with 1 L/ha of 2,4-D, offered the best balance between efficacy, selectivity, and yield, reaching 2,321 and 2,430 kg/ha, respectively.
Keywords : Irrigated wheat, Weed flora, Chemical weed control, Phytotoxicity, Yield
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