ABSTRACT

Plant disease can be managed in a number of ways, but resistant types are often the most straightforward, useful, efficient, and cost-effective. Using disease-resistant plant types is an effective way to prevent the spread of illness while also reducing the need for intensive, resource-intensive methods of disease management. Genes that control resistance in the host and genes that control pathogenicity in the pathogen interact to cause disease. The gene-for-gene idea was put forth by Flor, who hypothesised that for every host resistance gene, there must be an equivalent pathogenicity gene in the pathogen. True resistance may be passed down from generation to generation and is considerably less susceptible to outside influences. The procedures implemented to create disease-resistant variants and those used to breed are selection, hybridization followed by selection, back cross method, induced mutagenesis, development of multilines, and tissue culture techniques. Large-scale cultivation is necessary to demonstrate their performance in terms of yield and disease resistance.