Question

Which improved variety development approach in sericulture crosses a high-yielding but comparatively delicate bivoltine (two generations per year) silkworm race with a hardier, more disease-resistant multivoltine (multiple generations per year) race, aiming to combine the higher silk yield of the bivoltine parent with the environmental hardiness of the multivoltine parent?

Q: Answer-Which improved variety development approach in sericulture crosses a high-yielding but comparatively...

Bivoltine x multivoltine hybridisation crosses a high-yielding but comparatively delicate bivoltine silkworm race with a hardier, more disease-resistant multivoltine race, aiming to combine the superior silk yield and quality of the bivoltine parent with the greater environmental hardiness of the multivoltine parent, producing hybrid silkworm races better suited for commercial rearing under Indian tropical conditions than pure bivoltine races alone.