Abstract
Three cytokinins and their ribosides were tested in conjunction with brassinosteroid (BR) for their effects on ethylene production in etiolated mung bean (Vigna radiata L. Rwilcz cv. Berken) hypocotyl segments. When varying concentrations of BR were tried in combination with a fixed amount of kinetin (10 μM), there was an increase in ethylene production with increasing concentrations of BR up to 3 μM, and a decline beyond. A stimulation in ethylene production was observed with increasing concentrations of each of the cytokinins used. However, when applied in conjunction with 3 μM BR, all cytokinin concentrations produced similar stimulatory patterns. When 3 μM BR or 10 μM 6‐benzylaminopurine (BAP) was applied in conjunction with increasing concentrations of IAA, there was a stimulation in ethylene production with increasing concentrations of IAA. However, 3 μM BR and 10 μM BAP together with varying concentrations of IAA failed to alter the level of ethylene production.
Published Version
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