The rice is critical to optimizing Jean grains such as productivity, quality of output. Quantity of output Breeding rice for resistance to sheath blight. Is the one that gives the best strain resistant to disease. It also allows manufacturers to reduce fungicide less. Because the disease of rice is controlled mainly by the use of fungicides are harmful to both animals and humans. Also result in lodging, losing to both the quantity and quality of grain. As a result, the cost of production increased