Question

Expand the following abbreviation and state the function .of NAA and 2,4-D

Answer 1

NAA - Naphthalene Acetic Acid
It is a rooting agent and used for the vegetative propagation of plants from stem and leaf cutting. It is also used for plant tissue culture.
2,4-D -dichlorophenoxyacetic  acid
It is a systemic herbicide which selectively kills most broadleaf weeds by causing uncontrolled growth in them, but leaves most grasses such as cereals, lawn turf, and grassland relatively unaffected.