Genetics of Ovariole Number in Hybrid Queenbees (Apis mellifera L.) Carnica X Fasciata and Ligustica X Fasciata

Abstract

The F, queenbees had fewer ovarioles than the maternal varieties: carnica and ligustica. The deterioration was significant (7.5%) in the Ft Carnica and slight (2.5%) in the F( Ligustica. A hybrid vigour was noticed in both crosses as compared with the means of both maternal and paternal races. The heterosis percentage was 4.1% in the Carniolan hybrid and 11.9% in the Italian hybrid.