Question

How do artificial plant hormones help in the field of agriculture?

Answer 1

Auxin:

• It is used in the agricultural field to prevent the dropping of premature fruits, and for the sprouting of roots.

• Artificial auxin like 2, 4 - D (2, 4 -Dichloro phenoxy acetic acid)
  is used as a weedicide.

Gibberellins

• It is used for increasing fruit size in grapes and apples and also for preventing the ripening of fruits to assist marketing.
  
  Ethylene

• Ethylene is used for the flowering of pineapple plants at a time and for the ripening of tomatoes, lemon, oranges, etc.

• Ethephon, a chemical that is available in liquid form, gets transformed into ethylene, when used in rubber trees and it increases the production of latex.
  
  Abscisic acid

• It is used for harvesting fruits at the same time.