Give reasons — Artificial pollination is useful to plant breeders.

Artificial pollination is practised by plant breeders for developing new varieties. The breeders select two different varieties of a crop plant with desired characteristics. For example, one variety may be high-yielding while the other may be disease-resistant. Cross-breeding between them is done by artificial pollination. Many high-yielding varieties of rice, wheat, maize, etc. have been produced by this process.