| Compound |
Effect/Use |
| Hormones |
|
| Gibberellic acid (GA) |
Stimulates cell division and elongation,
breaks dormancy, speeds germination. |
| Ethylene gas (CH2) |
Ripening agent; stimulates leaf
and fruit abscission. |
| Indoleacetic acid (IAA) |
Stimulates apical dominance, rooting,
and leaf abscission. |
| Plant growth regulators |
|
| Indolebutyric acid (IBA) |
Stimulates root growth. |
| Naphthalene acetic acid (NAA) |
Stimulates root growth, slows respiration
(used as a dip on holly). |
| Growth retardants (Alar, B-9, Cycocel,
Arest) |
Prevent stem elongation in selected
crops (e.g., chrysanthemums, poinsettias, and lilies) |
| Herbicides (2,4-D, etc.) |
Distorts plant growth; selective
and nonselective materials used for killing unwanted plants. |
Other Tables
Other Tables