The branch of crop production which is normally concerned with crop improvement is

The branch of crop production which is normally concerned with crop improvement is

  1. plant breeding ✓
  2. plant science
  3. horticulture
  4. plant protection

Explanation

Plant breeding is the branch of crop production that is concerned with crop improvement. It involves the manipulation of plant species in order to create desired genotypes and phenotypes for specific purposes. This manipulation involves either controlled pollination, genetic engineering, or both, followed by artificial selection of progeny.