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Agronomía Colombiana
Print version ISSN 0120-9965
Abstract
GONZALEZ, Martha Lucía et al. Effect of gibberellic acid application on growth of cauliflower (Brassica oleraceae L.) var. Botrytis DC. Agron. colomb. [online]. 2007, vol.25, n.1, pp.54-61. ISSN 0120-9965.
The cauliflower is one of the horticultural crops of most consumption in Colombia. It is commercially attractive because of its nutritional qualities, the reason explaining why the market of this crop has been expanded from a processed to an exportation one. In order to verify the effect of gibberellic acid (AG3) on growth of cauliflower organs with a commercial value, an assay containing AG3 with 0, 5, 25 and 125 mg· L-1 concentrations was performed in two periods of planting. The total dry mass, organ (root, stalk, and inflorescence) dry mass, number of flowers, and plant height were quantified. The results showed that AG3 dose of 25 mg· L-1 was the most appropriate one for floral induction and largest plant height, while the dose of 5 mg· L-1 allowed to accumulate the highest quantity of biomass.
Keywords : development; biomass; photoassimilates; sink and source; rosette plants.