Question

Differentiate between the following:

Normal and HYV of crops

Answer 1

Basis of Difference	Normal varieties	High-yielding varieties (HYV)
Yield	Usually lower under comparable conditions	Selected for higher yield under suitable management
Plant traits	May have traditional growth and maturity features	Often bred for improved yield and useful traits such as dwarfness or early maturity
Input response	May be less responsive to intensive inputs	Often benefit from appropriate irrigation, fertilisers and crop management
Breeding objective	Traditional or locally selected characteristics	Greater productivity, often combined with improved quality or resistance