Auxin is mainly responsible for making cells longer, controlling the growth of the main tip of the plant, and promoting the formation of roots and fruits.
2
Gibberellins
They promote the elongation of stems, help seeds germinate, and stimulate the process of flowering. They are majorly found in higher plants and fungi.
3
Cytokinins
Cytokinins facilitate the process of cell division and differentiation. They encourage the growth of side buds, slow down aging in plants, and boost the production of proteins and nucleic acids.
4
Abscisic acid
It acts as a regulator when plants are under stress, like during water scarcity. It help plants conserve water by closing stomata, promoting seed dormancy, and decelerating growth.
5
Ethylene
It has different roles, like making fruits ripen faster, causing leaves to fall off, and aging plants. Ethylene also influences root growth and development.