Method for improving blast resistance and bacterial leaf blight resistance of rice

The invention discloses a method for improving blast resistance and bacterial leaf blight resistance of rice. The method comprises the steps that a rice material carrying a bacterial leaf blight resistant gene and a blast resistant gene hybridizes with a rice material without the bacterial leaf blight resistant gene and the blast resistant gene, seedling prospect detection is conducted by using SNP molecular markers, individual plants with the bacterial leaf blight resistant gene and the blast resistant gene are selected, the rice material with the resistance being about to be improved is usedas a recurrent parent to continuously backcross and then to be subjected to selfing, and the improved material with the improved bacterial leaf blight resistance and blast resistance and comprehensive agronomic characters similar to those of the recurrent parent is obtained. Through the closely linked SNP markers, the filial generation which carries the blast resistant gene and the bacterial leafblight resistant gene and