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The influence of paclobutrazol and ringing, applied at different phenological stages of cacao for flowering and leaf flux control Influencia do paclobutrazol e do anelamento aplicados em diferentes estádios fenológicos do cacaueiro no controle da floracao

by Muller, M.W; Lima, A.A. de; Alvim, P. de T; Centro de Pesquisas do Cacau, Ilhéus, BA (Brasil).
Publisher: (Ene-Dic 2004)ISSN: 0103-3816.Subject(s): THEOBROMA CACAO | CRINIPELLIS PERNICIOSA | CRECIMIENTO | REPRODUCTIVIDAD | SUSTANCIAS DE CRECIMIENTO VEGETAL | DOSIS DE APLICACION | FENOLOGIA | FLORACION | FLORACION INDUCIDA | RESISTENCIA A LA ENFERMEDAD | EXPERIMENTACION | THEOBROMA CACAO | CRINIPELLIS PERNICIOSA | GROWTH | REPRODUCTIVE PERFORMANCE | PLANT GROWTH SUBSTANCES | APPLICATION RATES | PHENOLOGY | FLOWERING | INDUCED FLOWERING | DISEASE RESISTANCE | EXPERIMENTATION | THEOBROMA CACAO | CRINIPELLIS PERNICIOSA | CROISSANCE | PERFORMANCE DE REPRODUCTION | SUBSTANCE DE CROISSANCE VEGETALE | DOSE D'APPLICATION | PHENOLOGIE | FLORAISON | FLORAISON INDUITE | RESISTANCE AUX MALADIES | EXPERIMENTATION In: Agrotrópica (Brasil) v. 16(1-3) p. 105-110Summary: The application of ringing and paclobutrazol has allowed for the control of the cacao vegetative and reproductive process. The identificación of the plant's phenological stage which best responds to these strategies, promoting a better asynchrony between the times of Crinipellis perniciosa spore liberation and the emission of susceptible tissues, could result in lower infection levels and a greater capability to control witches'broom. Results have shown that September and May are the best months for proceeding with ringing, with 40% and 32% reductions against the standard. August, October, May and June were the best times for the application of PBZ-S, showing a reduction of 51%, 45%, 28% and 22% in the total number of emitted leaves.
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The application of ringing and paclobutrazol has allowed for the control of the cacao vegetative and reproductive process. The identificación of the plant's phenological stage which best responds to these strategies, promoting a better asynchrony between the times of Crinipellis perniciosa spore liberation and the emission of susceptible tissues, could result in lower infection levels and a greater capability to control witches'broom. Results have shown that September and May are the best months for proceeding with ringing, with 40% and 32% reductions against the standard. August, October, May and June were the best times for the application of PBZ-S, showing a reduction of 51%, 45%, 28% and 22% in the total number of emitted leaves.

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