The objective of this work was to demonstrate the agronomic and physiological performances as well as the polyphenol contents and the antioxidant potentials of a variety and four accessions of okra [Abelmoschus esculentus (L.) Moench] grown in Natural conditions in the field. The experiment was conducted in the rainy season at the Gampela research station at 12 ° 22 west longitude and 12 ° 25 north latitude, 25 km east of Ouagadougou. The UAE 22 variety and the four accessions G259, G263, G264, G271 were sown in a randomized Fisher block system with 3 replicates. The total chlorophyll content, total phenols, total flavonoids, IC50 (antioxidant concentration of plant extract causing 50% inhibition free radicals of DPPH) leaves and fruits, aerial dry part, Total dry biomass, number of capsules per plant, average dry weight of a capsule and yield were assessed. The results obtained showed the increase in the chlorophyll total content at the flowering stage in all accessions and varieties. The G263 accession with the highest total dry biomass and UAE 22 with the lowest total dry biomass recorded the best yields followed by G271. The study showed a correlation between the total phenol contents and the antioxidant activity in the leaves at the vegetative stage and flowering stage as well as in the fruits. An inversion of proportion between the phenol contents and the flavonoid contents was observed in the organs studied. The antioxidant potential was higher in fruits than in leaves. The leaves and fruits of G271 recorded the best antioxidants potential followed by G263 and UAE22. UAE22 is the richest in flavonoids followed by G271 and G263.
