Abstract
Action of various growth regulators has been described on the development of stomata of Abelmoscus esculentus . Normal development of stomata was observed in control (distil water), sucrose, ascorbic acid, and gibberellic acid with a prolonged period of meristematic activity in the latter three. In coumarin, inhibition of growth was maximum so that even the first leaf stage was not obtained. Persistent stomatal initial with equal or unequal division by furrowing was induced by colchicine treatment. Persistent stomatal initial with complete or incomplete, equal or unequal division was induced by ascorbic acid + colchicine, gibberellic acid + colchicine, ascorbic acid + coumarin treatment. Normal development of stomata with increased size and an abnormally big stomatal aperture was noticed in gibberellic acid + coumarin treated plants.
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