propagação de jabuticabeira por estaquia cutting propagation of jabuticaba tree

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2010
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Abstract
O objetivo deste trabalho foi investigar a eficiência da estaquia na produção de mudas de jabuticabeira (Plinia cauliflora). Testou-se a eficácia de enraizamento de estacas lenhosas, utilizando quatro concentrações de ácido indolbutírico (AIB) (0; 2.000; 4,000 e 6.000 mg L-1) e dois procedimentos (corte vertical e anelamento da estaca); e o enraizamento de estacas apicais herbáceas, utilizando cinco concentrações de AIB (0; 2.000; 4.000; 6.000 e 8.000 mg L-1) e em duas épocas (outubro e dezembro de 2007). O enraizamento das estacas foi avaliado após 180 dias da implantação dos experimentos. Observou-se que o enraizamento de estacas lenhosas é dependente da aplicação de AIB, sendo que o maior percentual de enraizamento (50%) foi obtido na maior concentração de AIB (6.000 mg L-1) conjugada com o corte vertical. Para as estacas apicais herbáceas, o enraizamento foi baixo (máximo de 10%), entretanto há o potencial de enraizamento e, por isso, ajustes na técnica devem ser testados para maximizá-lo.
The objective of this work was to test the efficiency of cutting technique for the propagation of jabuticaba tree (Plinia cauliflora). The rooting potential of wood cutting was tested, using four concentrations of Indolbutiric Acid - IBA (0, 2000 , 4000 and 6000 mg L-1) and two procedures (cross section and cutting girdling). Also the rooting potential of softwood terminal cuttings was tested, using five concentrations of IBA (0, 2000, 4000, 6000 and 8000 mg L-1) in two periods of implantation (October and December 2007). The rooting percentage was evaluated 180 days after the experiment started. It was observed that rooting of wood cutting is dependent on the application of IBA, so the biggest rooting percentage (50%) was obtained in biggest concentration of IBA (6000 mg L-1) associated with cross section. For the softwood terminal cuttings, the rooting percentage was smaller (maximum of 10%), however there is the potential of rooting, and, changes of technique which must be tested for maximization.
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Authors ;Simone Aparecida Zolet Sasso;Idemir Citadin;Moeses andrigo Danner
Journal technocom
Year 2010
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