Breeding of Okra for Resistance to Yellow Vein Mosaic Virus

Abstract

Okra (Abelmoschus esculentus L. Moench) commonly known as Lady’s finger or Bhendi is most delicious vegetable relished worldwide. The productivity of okra has been low in recent times due to various reasons viz., inadequate use of fertilizers, irrigation and occurrence of various pest and diseases. In India okra crop is highly susceptible to yellow vein mosaic virus (YVMV) disease probably due to warm tropical climate and intensive crop cultivation which supports the survival of whitefly population round the year. Host plant resistance to virus is one of the most practical, economical and eco-friendly strategies for reducing yield loss in okra. Identification of stable and reliable sources of resistance to viral diseases is an important step in future breeding programme. Understanding the genetics of resistance in donor parent helps in choosing suitable breeding method and attempts should be made to incorporate broad spectrum resistance through gene pyramiding and develop okra varieties with desirable resistance or tolerance to okra YVMV followed by maintenance breeding.