Question

What is heterosis? What role does it play in crop productivity?

Answer 1

Superiority of the progeny over the parent plants is called Heterosis or Hybrid vigour. The term Heterosis or hybrdi vigour was first coined by G.H.Schull. It is first experimentally proved by Kolreuter in maize. helps in increasing the yield of the plants. The plants show better quality. The plants have greater resistant to disease and Pests due to heterosis.