Propagation of soursop tree through minicuttings/Propagacao da gravioleira por miniestaquia

It was evaluated the rooting of cuttings of soursop tree (Annona muricata L.) using apical and subapical herbaceous cuttings collected from plants grown in the field and greenhouse. The experiment was conducted in a completely randomized design in a factorial 4 x 2, with 4 types of cuttings (apical...

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Veröffentlicht in:Revista Brasileira de fruticultura 2013-09, Vol.35 (3), p.860
Hauptverfasser: de Figueiredo, Georgia Roberta Gomes, Vilasboas, Felipe Silveira, de Oliveira, Sergio Jose Ribeiro, Sodre, George Andrade, Do Sacramento, Celio Kersul
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Sprache:por
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Zusammenfassung:It was evaluated the rooting of cuttings of soursop tree (Annona muricata L.) using apical and subapical herbaceous cuttings collected from plants grown in the field and greenhouse. The experiment was conducted in a completely randomized design in a factorial 4 x 2, with 4 types of cuttings (apical herbaceous field and greenhouse, subapical herbaceous field and greenhouse) and 2 levels of growth regulators (0 and 6,000 mg [kg.sup.-1] IBA), totaling eight treatments and three replicates of 12 cuttings. The cuttings were standardized with seven inches long and treated with 0 or 6,000 mg [kg.sup.-1] IBA, placed in tubes containing commercial substrate and kept in a mist chamber. At 80 days after striking, it was observed that the subapical and apical cuttings of the greenhouse and subapical cuttings of field showed rooting percentage of 97.3%, 88% and 88% respectively. There was no detectable effect of IBA on rooting of cuttings. Index terms: Annona muricata L., rooting, indolbutiric acid. Avaliou-se o enraizamento de miniestacas de gravioleira (Annona muricata L.), utilizando-se de estacas apicais e subapicais herbaceas coletadas em plantas cultivadas no campo e em casa de vegetacao. O experimento foi conduzido em delineamento inteiramente casualizado, em esquema fatorial 4 x 2, sendo 4 tipos de miniestacas (apical herbacea do campo e viveiro, subapical herbacea do campo e de viveiro) e 2 niveis de reguladores de crescimento (0 e 6.000 mg [kg.sup.-1]), totalizando 8 tratamentos e 3 repeticoes, com 12 estacas por parcela. As miniestacas foram padronizadas com sete centimetros de comprimento e tratadas ou nao com acido indolbutirico, colocadas em tubetes contendo substrato comercial e mantidas em camara de nebulizacao. Aos 80 dias apos o estaqueamento, foi observado que as miniestacas subapicais e apicais de casa de vegetacao e subapicais do campo apresentaram percentual de enraizamento de 97,3%, 88% e 88% respectivamente. Nao foi detectado efeito da aplicacao de AIB no enraizamento das miniestacas. Termos para indexacao: Annona muricata L., enraizamento, acido indolbutirico.
ISSN:0100-2945