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Answer» Major plant hormones and their action: | Hormones Auxins | Uses Cell elongation and differentiation of shoots and roots. | | Cytokinins | Promote cell division, promotion of sprouting of lateral buds, delaying the ageing in leaves, opening of stomata. | | Gibberellins | Germination of seeds and sprouting of buds; elongation of stems; stimulation of flowering; development of seedless fruits, breaking the dormancy in seeds and buds. | | Abscisic acid | Closing of stomata; seed dormancy, promoting aging of leaves. | | Ethylene | Ripening of fruit. |
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