The research work is useful tto the students and researchers who are working in the field of Rice breeding including conventional and mutational breeding. Also helpful to tthe young scientist working on rice.In the present research work nine lines of rice having fine and coarse grainns were crossed in diallel design. All the parents and F1s and F2s were screened in the field during kharif 2003-04In some of the derivatives were screened who are possessing high yield along with resistance against blast under mid hills of North western conditions. Это и многое другое вы найдете в книге Breeding of Rice (Oryza sativa L.): Breeding of fine and coarse grains derivatives (Sanjeev Kumar, Kiran Pathania, Pawan Kumar Sharma)