Heritability Estimates in the Silkworm for Different Productive Characters with their Genetic and Phenotypic Correlations'

Abstract

The relatively high heritability values, for most serie characters, suggest that genetic improvement can be achieved easily by selection. The positive and very high genetic correlation value between the fresh cocoon weight and dried cocoon weight, and the considerable genetic correlations between the dried cocoon weight and all serie characters both indicate that selection due to fresh cocoon weight leads inclusively to genetic improvement in serie characters.