Identification of new resistant sources for yellow vein mosaic virus disease of Okra (Abelmoschus esculentus L.)

Abstract

Okra production got major setback due to the severe incidence of yellow vein mosaic disease caused by Gemini virus in India. The existing commercial varieties/ hybrids are vulnerable to yellow vein mosaic disease. It has been observed that, degree of resistance varies from locality to locality and season to season. The different virus strains and vector strains plays an important role in expression of disease. The available commercial varieties/hybrids are highly susceptible to the YVMV. The infested plants bears whitish yellow fruits, which are not fit for marketing and therefore, farmers suffers from economic losses. Efforts made by number of scientists for identification of resistant sources (Prabhu et.al., 2007). However, so far, reported sources do not show consistent performance under different agro climatic conditions. Therefore, present investigation was undertaken to identify resistant/tolerant sources against yellow vein mosaic disease in okra.