NEET BIOLOGY

Detailed explanation-1: -The top three plant growth promoters are: (1) Auxins (2) Gibberellins and (3) Cytokinins.

Detailed explanation-2: -Three prominent plant growth promoters are Auxins, Gibberellins, and Cytokinins. Auxins induce cell differentiation, cell division, and elongation. Gibberellins induce seed germination, cell division, elongation, and root growth. Cytokinins promote shoot initiation and growth, leaf senescence, and apical dominance.

Detailed explanation-3: -Plant growth promoter hormones are those plant hormones that help in the growth of plants. Example: auxins, gibberellins, etc.

Detailed explanation-4: -Ethylene is a plant growth promoter as well as a plant growth inhibitor. Ethylene is produced by tissues of plants undergoing senescence and ripening of fruits in the form of gas. It helps in the growth of root hairs and elongation of internodes in deep water rice plants. Q.