Propagação vegetativa do cafeeiro (Coffea arabica L.) por meio de enraizamento de estacas
Arquivos
Data
2007
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
Buscando-se uma metodologia que permita aumentar a eficiência da clonagem, por meio de estaquia caulinar de plantas de C.arabica L., foi conduzido um experimento em casa de vegetação com sistema automático de nebulização. Utilizaram-se estacas de cafeeiros da cultivar Acaiá. O trabalho testou a eficiência do aquecimento do leito de enraizamento, do fornecimento exógeno de sacarose (30 gL-1) e de seis concentrações de AIB (0; 2000; 4000; 6000; 8000 e 10000 mg L-1) para o enraizamento das estacas. O substrato utilizado foi uma mistura de areia lavada e vermiculita na proporção de 1:1. As avaliações foram feitas aos 45, 90 e 180 dias após a instalação do experimento. Os resultados mostraram que todas as estacas que enraizaram nos melhores tratamentos, enraizaram aos 90 dias e que o uso da sacarose não apresentou efeito positivo nas porcentagens de calejamento e enraizamento. O aquecimento basal não aumentou a porcentagem total de estacas enraizadas e apresentou o pior desempenho aos 90 dias. O AIB favoreceu o enraizamento das estacas de cafeeiro ‘Acaiá’, embora na ausência do regulador as estacas também tenham manifestado capacidade rizogênica.
Trying to find out a methodology that allows increasing cloning efficiency by means of cuttings it was conducted a experiment in green house with a automatic system of mist. It was used coffee cuttings of cultivars Acaiá. This work tested the efficiency of heating of the rooting bed, the exogenous supplying of sucrose (30 g/L) and six concentrations of AIB (0; 2000; 4000; 6000; 8000 10000 mg/L) in the rooting. The material utilized as rooting bed was a mixture of washed sand and vermiculite in the proportion of 1:1. Evaluations were made at 45, 90, e 180 days after the beginning of the experiment. The results showed that the best rooting occurred at 90 days and the use of sucrose had no effect on the percentage of rooting. Also the basal heating does not improved the number of cuttings that has rooted and showed worse performance at 90 days. The AIB was favorable to the rooting of Acaiá cuttings, but the cuttings also have presented rooting capacity even without the regulator.
Trying to find out a methodology that allows increasing cloning efficiency by means of cuttings it was conducted a experiment in green house with a automatic system of mist. It was used coffee cuttings of cultivars Acaiá. This work tested the efficiency of heating of the rooting bed, the exogenous supplying of sucrose (30 g/L) and six concentrations of AIB (0; 2000; 4000; 6000; 8000 10000 mg/L) in the rooting. The material utilized as rooting bed was a mixture of washed sand and vermiculite in the proportion of 1:1. Evaluations were made at 45, 90, e 180 days after the beginning of the experiment. The results showed that the best rooting occurred at 90 days and the use of sucrose had no effect on the percentage of rooting. Also the basal heating does not improved the number of cuttings that has rooted and showed worse performance at 90 days. The AIB was favorable to the rooting of Acaiá cuttings, but the cuttings also have presented rooting capacity even without the regulator.
Descrição
Trabalho apresentado no Simpósio de Pesquisa dos Cafés do Brasil (5. : 2007 : Águas de Lindóia, SP). Anais. Brasília, D.F. : Embrapa Café, 2007.
Palavras-chave
Café Reguladores de crescimento Coffea arabica, Coffee Growth regulators Coffea arabica
Citação
Jesus, Adriana M. S.; França, André C.; Cerqueira, Filipe C.; Carvalho, Samuel P. de. Propagação vegetativa do cafeeiro (Coffea arabica L.) por meio de enraizamento de estacas. In: Simpósio de Pesquisa dos Cafés do Brasil (5. : Águas de Lindóia, SP : 2007). Anais. Brasília, D.F. : Embrapa - Café, 2007. (1 CD-ROM), 5p.