Folia Horticulturae

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The effect of gibberellic acid on growth and flowering of Gerbera jamesonii Bolus

A. Pobudkiewicz, J. Nowak

Research Institute of Pomology and Floriculture
Waryńskiego 14, 96-100 Skierniewice, Poland

Gerbera jamesonii Bolus ‘Amber’ and ‘Queen Rebecca’ were sprayed with GA3 at 50, 100, 200, or 500 mg l-1. Compared with controls, applications of GA3 at 200-500 mg l-1 resulted in a slight increase in the stem length of cv. Amber but had no effect on that of ‘Queen Rebecca’. Spraying with GA3 increased the inflorescence diameter of both cultivars. GA3 treatment reduced the inflorescence vase life, while preservative solution containing 8HQC + S greatly extended it in GA3-treated and untreated plants of both cultivars. The inflorescence yield was not affected by any GA3 treatment.

Pobudkiewicz A., Nowak J., 1992. The effect of gibberellic acid on growth and flowring of Gerbera jamesonii Bolus. Folia Horticulturae IV/2: 35-42.