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One of the major limiting factors of okra is the incidence of okra yellow vein mosaic virus (OYVMV), its vector being whitefly. Infection of 100% plants in a field is very common and yield losses range from 50 to 94% depending on the stage of crop growth at which infection occurs. A total of 91 okra genotypes were evaluated in summer and rainy season of 2012 to 2013, out of which only 6 genotypes (IIHR123, IC90381, CI140982, IC141065, IIHR1, and Kavya) were found to have highly resistant disease reaction during both the season. The highest fruit yield in rainy and summer season was observed in the genotypes IC32855 (308 g/ plant) and IC99646 (212.3 g/plant), respectively. These genotypes could be used for further hybrid breeding programme due to their high yield and lower disease incidence for OYVMV. Keywords: Disease incidence, genotypes, okra, OYVMV, seasonal variation African Journal of Biotechnology , Vol 13(12), 1336-1342

Seasonal response of okra (Abelmoschus esculentus L. Moench) genotypes for okra yellow vein mosaic virus incidence