Plant Growth Regulators

**Definition:** Any of the hormones produced naturally in plants and active in controlling growth and other functions. There are three primary classes: auxins, cytokinins, and gibberellins.

**Tree numbers:** - D27.505.696.377.760

**Synonyms:** - Plant Hormone - Phytohormones - Growth Regulators, Plant - Regulators, Plant Growth - Plant Hormones - Plant Growth Regulator - Phytohormone