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Abstract The aim of this work was to study the effect of the growth regulators ,ethrel ,cycocel,gibberellic acid and naphthalenacetic acid as foloage sprays,applied at different concentrations,on vegetative growth,flowering and the cardiac glycosides content of the different plant organs I,e. herb, roots,flowers and fruits of Adonis autumnalis plant ,at different stages of growth. The following results were obtained: 1-In growth regulators treated plants, 2-Ethrel applied at all concentrations. 3-Cycocel applied at all concentrations. 4-Gibberellic acid, at all concentrations used. 5-when naa was applied to Adonis autumnalis |