Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/37275
Title: Aplicação de IBA para o enraizamento de miniestacas de Eucalyptus benthamii Maiden & Cambage x Eucalyptus dunnii Maiden
Other Titles: IBA application for rooting of Eucalyptus benthamii Maiden and Cambage x Eucalyptus dunnii Maiden minicuttings.
Keywords: Clonagem
Propagação vegetativa
Ácido indolilbutírico
Regulador vegetal
Multiplicação de genótipos superiores
Cloning
Vegetative propagation
Indolebutyric acid
Growth regulator
Superior genotype multiplication
Issue Date: 2010
Publisher: Universidade Estadual de Maringá
Citation: BRONDANI, G. E. et al. Aplicação de IBA para o enraizamento de miniestacas de Eucalyptus benthamii Maiden & Cambage x Eucalyptus dunnii Maiden. Acta Scientiarum. Agronomy, Maringá, v. 32, n. 4, p. 667-674, 2010.
Abstract: Eucalyptus has great importance in the forestry sector and many advances in the area of improvement have been achieved with the advent of biotechnological techniques. However, some promising genotypes still do not have multiplication protocols with cloning techniques, such as minicutting. The study aimed to evaluate IBA concentrations for survival, rooting and vegetative vigor of E. benthamii x E. dunnii minicuttings, and determine the maximum technical efficiency dose. Ministumps H12, H19 and H20 clones were cultivated in a clonal minigarden under a semi-hydroponic system. For rooting, the minicutting basal portion was plunged in hydro-alcoholic solutions, whose concentrations were: 0; 2,000; 4,000; 6,000 and 8,000 mg L-1 of IBA. The experiment was conducted in a completely randomized design, with the factors consisting of three clones and five IBA concentrations, with five replications, containing 10 minicuttings per replication. IBA positively influenced the minicutting rooting processes, with differentiated behavior between the clones, with 30.32 to 55.45% rooting variation. The positives increments occurred until the highest IBA concentration for H12 and H19 clones. However, the range between 4,000 and 6,000 mg L-1 of IBA treatments promoted the best rooting results for the H20 clone.
URI: http://repositorio.ufla.br/jspui/handle/1/37275
Appears in Collections:DCF - Artigos publicados em periódicos



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