For success of any breeding programme, the selection of breeding resource material is of paramount importance. The selection of superior parents determines the degree of success of the breeding programme to a large extent. Therefore, it is highly pertinent to select and evaluate the suitable silkworm breeds before initiating any breeding programme. Accordingly in the present study eighteen silkworm breeds of diverse geographical origin were selected and evaluated with respect to eleven important yield attributing traits by employing multiple trait evaluation index (EI). | Selection of the silkworm Bombyx mori L. Breeding resource material