Flower Induction in Japanese Chrysanthemums with Gibberellic Acid

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Science  20 Mar 1959:
Vol. 129, Issue 3351, pp. 777-778
DOI: 10.1126/science.129.3351.777


Gibberellic acid, when applied in lanolin to apices of three Japanese varieties of Chrysanthemum morifolium, induced bolting and flowering. These varieties are not sensitive to photoperiod but require a cold treatment in order to flower. On the other hand, the varieties of Chrysanthemum which belong to the short-day group are not induced to flower by gibberellic acid.