Plant Hormones



1 Plants may be made to grow taller by applying the chemical
naphthaleneacetic acid.
gibberellic acid.
phosphon.
indoleacetic acid.

2 The chemical most often used commercially for rooting cuttings is

indoleacetic acid.
indolebutyric acid.
naphthalenacetic acid.
talc.

3 3. IAA, NAA, and GA are
basketball leagues in Europe.
international seed companies.
plant pheromones.
plant hormones.
spray adjuvants.