Folia Horticulturae

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Growth and flowering of Impatiens walleriana Hook grown from transplants treated with leaf- and soil-applied retardants

Anita Schroeter-Zakrzewska, Marek Jerzy

Department of Ornamental Plants
Agricultural University in Poznań
D±browskiego 159, 60-594 Poznań, Poland
e-mail: anitaschroeter@op.pl

Transplants of Impatiens walleriana ‘Cajun Lilac F1’ were grown in a greenhouse in pots in a peat substrate with the addition of sand. Daminozide, chlormequat and flurprimidol were used 1-3 times at 14-day intervals in foliar and soil applications. In May plants were transplanted to the soil. The dynamics of growth and flowering were investigated in plants grown outdoors. The strongest and longest-lasting inhibitory effect on the growth of bedding plants was found for daminozide and chlormequat in foliar application. Soil-applied flurprimidol had a stronger dwarfing effect than daminozide and chlormequat. Flurprimidol and chlormequat applied to the soil twice at a concentration of 690 mg l-1 had a positive residual effect on plant flowering.

Schroeter-Zakrzewska A., Jerzy M., 2006. Growth and flowering of Impatiens walleriana Hook grown from transplants treated with leaf- and soil-applied retardants. Folia Horticulturae 18/1: 91-100.