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Acta Agronómica

Print version ISSN 0120-2812

Abstract

ARISTIZABAL LOAIZA, Manuel; CARDONA P., Luisa Fernanda  and  OSORIO U., César Augusto. Effects of gibberellic acid and dehandling on Dominico Harton plantain bunch characteristics. Acta Agron. [online]. 2008, vol.57, n.4, pp.253-257. ISSN 0120-2812.

To establish whether the application of gibberellic acid increases the dehandling beneficial effect on bunch characteristics of the Dominico Harton plantain, an experiment was carried out at the 'Montelindo' farm (Palestina, Caldas). Fifteen days after flowering bunches were left with six hands. Gibberellic acid applications, 1000 mg L-1, were made at 15, 45 and 75 days after flowering. A complete randomized design with four replications was used in a factorial arrangement of the treatments of 2 x 2 x 3 (dehandling, hormone application, time of application). Dehandling significantly improves bunch weight; hormone application, even in bunches without dehandling, also significantly improves fruit quality; the time of hormone application caused highly significant differences in bunch weight, first hand weight and average finger weight; the best effect on bunch characteristics is obtained with the dehandling and hormone application 15 days after flowering.

Keywords : Musa AAB; phytohormone; time of application; fruit size.

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