Phases of Growth and Plant Hormones
How plants grow over time, and the chemical messengers that regulate the process.
Phases of Growth
Plant growth generally passes through the meristematic, elongation, and maturation phases.
Plant Hormones
| Hormone | Main Effect |
|---|---|
| Auxins | Promote cell elongation and growth |
| Gibberellins | Promote stem elongation |
| Cytokinins | Promote cell division |
| Abscisic Acid | Inhibits growth; helps in stress responses |
| Ethylene | Promotes fruit ripening |
Lesson 18 of 26