Effects of ethrel and gibberellin on impatiens plants

Impatiens ( Impatiens balsamina L.) is a qualitative short-day plant that flowers, in Israel, all year round. This lowers the quality of impatiens stock plants. The goal of this work was to examine treatments that will eliminate flowering in stock plants without reducing other qualities of the cutti...

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Bibliographic Details
Published in:Scientia horticulturae 1998-07, Vol.76 (1), p.29-35
Main Authors: Tamari, Guy, Pappa, Lamprini, Zered, Tamar, Borochov, Amihud
Format: Article
Language:English
Subjects:
ACIDO GIBERELICO
Agronomy. Soil science and plant productions
Biological and medical sciences
BOUTURE
CRECIMIENTO
CROISSANCE
Cropping systems. Cultivation. Soil tillage
CUTTINGS
ENRACINEMENT
ENRAIZAMIENTO
ESQUEJES
ETEFON
ETHEPHON
Ethrel
ETHYLENE
ETILENO
FLORACION
FLORAISON
FLOWERING
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Gibberellin
GIBBERELLINE
GROWTH
IMPATIENS
Impatiens balsamina
ROOTING
Tending. Growth control
Tillage. Tending. Growth control
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Summary:Impatiens ( Impatiens balsamina L.) is a qualitative short-day plant that flowers, in Israel, all year round. This lowers the quality of impatiens stock plants. The goal of this work was to examine treatments that will eliminate flowering in stock plants without reducing other qualities of the cutting crop. Impatiens plants (cv. Tempo Pink (Sultanii) and Aruba (New-Guinea)) were sprayed with ethrel alone or in combination with gibberellin. Ethrel treatment caused a transient increase in ethylene production and inhibited vegetative growth. A bi-weekly ethrel application, at 400 ppm and above, resulted in a complete elimination of flowering. Ethrel treatments led to an increase in cutting crop with a better rooting, but a shorter cutting length due to growth inhibition. Gibberellin, when applied in combination with ethrel, restored vegetative growth to control levels without affecting flowering.
ISSN:0304-4238
1879-1018
DOI:10.1016/S0304-4238(98)00128-9