Complex Evaluation of Some Introduced Silkworm Bombyx mori L. Races in SES-Vratza's Gene-Bank

Y. VASILEVA, N. PETKOV and Z. PETKOV
Regional Centre for Scientific-Applied Service, BG-3000 Vratza, Bulgaria

Abstract

VASILEVA, Y., N. PETKOV and Z. PETKOV, 2004. Complex evaluation of some introduced Silkworm Bombyx mori L. races in SES-Vratza's Gene-bank. Bulg. J. Agric. Sci., 10: 351-356

This study was made to evaluate 29 new introduced silkworm Bombyx mori L. races, incl. 16 from Ukraine, 6 from Uzbekistan and 7 from North Korea. Used statistic methods for complex testing and identification of most promising races permit to select the best ones for further selection programs. It was determined that Ukraine18, Ukraine14, Ukraine19, Mereffa7, Tashkent12 and No7 races were markedly perspective for using in future silkworm selection programs as initials forms for creation of new high-productive hybrids.

Key words: : silkworm, subordinate function index, evaluation index, total cumulative index, rank, race