Which one of the plant growth regulators would you use if you are asked to: (a) induce rooting in a twig (b) quickly ripen a fruit (c) delay leaf senescence (d) induce growth in axillary buds (e) ‘bolt’ a rosette plant (f) induce immediate stomatal closure in leaves
(a) Induce rooting in a twig – Auxins (b) Quickly ripen a fruit – Ethylene (c) Delay leaf senescence – Cytokinins (d) Induce growth in axillary buds – Cytokinins (e) 'Bolt' a rosette plant – Gibberellic acid (f) Induce immediate stomatal closure in leaves – Abscisic acid
