Enhancement of leaf blast resistance in rice cultivar ‘swarna’ by marker assisted backcross breeding
Swarna is most popular indica rice variety cultivated in India. However, Swarna is highly susceptible to blast disease. As genes that confer effective resistance to blast are available along with gene-specific markers, the present study was carried out to introgress a major blast resistance gene, Pi54 into the genetic background of Swarna through marker-assisted backcross breeding. Rice line Tetep possessing Pi54 gene served as the donor. Marker-assisted backcross breeding strategy was used for introgression of the resistance gene into Swarna.