Effect of Irrigation Frequency on the Agronomic Performance, Yield and Economic Profitability of Okra (Abelmoschus esculentus L.) Cultivar Clemson Spineless under Edapho-Climatic Conditions of Faranah, Guinea

Rational water management remains a major challenge for vegetable production in Guinea, particularly during the dry season. This study evaluated the effects of different irrigation frequencies on the growth, yield, and economic profitability of okra (Abelmoschus esculentus L.), cultivar Clemson Spineless, under the edapho‑climatic conditions of Faranah. The experiment was conducted from January to April 2023 on sandy‑loam soil (pH 6.0) using a randomized complete block design with four irrigation treatments: two irrigations per day (FA₀), one irrigation per day (FA₁), one irrigation every two days (FA₂), and one irrigation every three days (FA₃), each replicated four times. Growth parameters, yield components, and economic indicators were assessed. Irrigation frequency significantly affected vegetative growth and yield. The highest yields were obtained under FA₀ (10.31 t ha⁻¹) and FA₁ (10.21 t ha⁻¹). However, FA₁ recorded the highest net benefit (50,362,188 GNF) and profitability rate (97.30%). Daily irrigation therefore represents the most efficient strategy for optimizing okra productivity and profitability under dry‑season conditions in Faranah.