define auxins gibberelins cytokins absicic acid and ethenyle
Answers
Auxin: Auxin is a plant hormone produced in the stem tip that promotes cell elongation. Auxin moves to the darker side of the plant, causing the cells there to grow larger than corresponding cells on the lighter side of the plant.
Gibberelins: Gibberellins (GAs) are plant hormones that regulate various developmental processes, including stem elongation, germination, dormancy, flowering, flower development and leaf and fruit senescence.
Cytokinin:Cytokinins (CK) are a class of plant growth substances (phytohormones) that promote cell division, or cytokinesis, in plant roots and shoots. They are involved primarily in cell growth and differentiation, but also affect apical dominance, axillary bud growth, and leaf senescence.
Abscisic Acid : Abscisic acid is a plant hormone. ABA functions in many plant developmental processes, including seed and bud dormancy, the control of organ size and stomatal closure.
Etheylene:Ethylene serves as a hormone in plants. It acts at trace levels throughout the life of the plant by stimulating or regulating the ripening of fruit, the opening of flowers, and the abscission (or shedding) of leaves.
These are the plant hormones.
Auxins: Helps to promote plant body development.
Gibberelins: Helps to promote growth.
Cytokinnis: Enhance cell division.
Abscisic acid: Stops the development of body.
Ethylene: It stimulates and regulate the ripening of fruit.
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