ABSTRACT
ABSTARCT Yellow vein mosaic is one of the devastating diseases of okra found in Indian subcontinent. Mosaic is caused by mono and bipartite begomoviruses and their satellites. This disease mainly reduces the quality of fruit and is greatly affected in severe case of infection. Management of disease by the application of chemicals is quite difficult and hazardous to the environment. The development of resistant cultivar is only practical approach to control the disease. Several researchers work on genetics of disease resistance and inheritance of resistance to yellow mosaic disease. Different source of resistant in wild species of okra had been identified. For the improvement of cultivated okra species, it is necessary to understand and appreciate the studies related to the virus, transmission of virus, alternative host for virus, and wild relative of okra, cross abilities barrier between the species, favorable conditions for disease development, screening methods, and breeding strategies. Under this chapter, we have tried to incorporate all related aspects that directly or indirectly help in the development of resistant cultivar of okra.
