Multiple choice

An efficient root-inducing chemical useful in horticulture is

  1. GAA

  2. IBA

  3. NAA

  4. 2, 4 – D

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Indole Butyric Acid (IBA) is applied to cut end of the stem to stimulate rate of formation and increase the number of roots. It is useful in horticulture as promotion of rooting would reduce death rate in nursery plants.