Data/hora: 22/06/2024 00:21:26

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 25/08/2020
Data da última atualização: | 25/08/2020
Autoria: | MAGGIONI, R. A.; VIEIRA, L. M.; INVERNIZZI, S. F; CARPANEZZI, A. A.; ZUFFELLATO-RIBAS, K. C.
Afiliação: | Renata de Almeida Maggioni, UFPR; Leandro Marcolino Vieira, UFPR; Sofia Foladori Invernizzi, UFPR; ANTONIO APARECIDO CARPANEZZI, CNPF; Katia Christina Zuffellato-Ribas, UFPR.
Título: | Germination potential and vegetative propagation of Aegiphila brachiata Vell.
Ano de publicação: | 2020
Fonte/Imprenta: | Cerne, v. 26, n. 2, p. 222-231, 2020.
DOI: | 10.1590/0104776020202602270
Idioma: | Inglês
Conteúdo: | The objective of this study was to evaluate the germination potential of Aegiphila brachiata (peloteiro) and its propagation through stem-cuttings, as well as how the age of parental plants and the application indolebutyric acid (IBA) and inoculant of Azospirillum brasilense influence adventitious rooting of the species. Thus, the physical characterization of a seed lot and a germination test were performed, both with or without seed scarification and at three gibberellin concentrations (0, 50 and 100 mg.L-1 GA3). For stem-cuttings, two experiments were carried out with cuttings, one with young individuals and the other with adult trees. In both experiments, stem-cuttings were submitted to treatments with IBA (0, 1500, 3000 and 6000 mg.L-1) and a solution of Azospirillum brasilense (50% and 100% of the commercial concentration) for rooting in a greenhouse for 30 days. No seeds germinated and a barrier of radicle emission was identified in the endocarp. The inoculation of stem-cuttings with A. brasilense revealed no influence in rhizogenesis. The stem-cutting technique from young trees is recommended for plantlet production of this species (53.75% rooting), requiring 6000 mg.L-1 IBA application under the conditions that were adopted. Stem-cuttings from adult trees are not recommended for the production of plantlets of peloteiro (Aegiphila brachiata Vell.) due to the low rooting rates (10%) and high mortality (68.33%).
Palavras-Chave: | Aegiphila brachiata; Estaquia; Indolebutyric acid; Peloteiro; Rhizobacteria; Stem cuttings.
Thesagro: | Propagação Vegetativa; Semente.
Thesaurus Nal: | Seeds.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/215563/1/Carpanezzi-2365-17-17266-4-10-20200824.pdf
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (57377-1) - UPC - AP - DD -  -  -  - DIS