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Floresta e Ambiente

versão impressa ISSN 1415-0980versão On-line ISSN 2179-8087

Resumo

BERNARDES, Vanessa Pimentel et al. Vegetative Rescue and Clonal Propagation of Lecythis Pisonis Cambess. Floresta Ambient. [online]. 2020, vol.27, n.4, e20180261.  Epub 06-Jul-2020. ISSN 2179-8087.  https://doi.org/10.1590/2179-8087.026118.

Our study sought to evaluate the rooting capacity of indole butyric acid (IBA)-treated stem cuttings and the efficiency of the vegetative rescue technique of adult and transitional parent trees of Lecythis pisonis. Softwood, hardwood, and semi-hardwood leafless cuttings treated with IBA (0; 2,000; 4,000; 6,000; and 8,000 mg kg-1) were tested in a randomized block design with four replicates and 10 cuttings per plot. The growth of epicormic shoots was also evaluated in 60-cm branches removed from the tree canopy and kept in greenhouse for 60 days. Cuttings from adult trees did not form roots. Softwood cuttings from transitional trees had a very low rooting percentage. In both cases, no influence of IBA concentrations were observed. The use of the sectioned-branch technique was feasible for inducing sprouts.

Palavras-chave : auxin; cutting types; epicormic shoots; Atlantic forest.

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