The phytohormone responsible for increasing the shelf life of cut flowers and vegetables also helps in

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Apical dominance has been explained as due to the action of auxin present in the main apex. This view is amply supported by an experiment, where if the stem tip is cut off, the axillary buds found below sprout immediately. Instead, if an agar block containing auxin placed over the decapitated stem, the axillary buds remain suppressed. It is clear from the above experiment, that auxin present in the main apex somehow inhibits the growth of the axillary bud. The severity of apical dominance is greater on the axillary