Data/hora: 05/06/2024 02:10:37

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 03/12/2019
Data da última atualização: | 03/12/2019
Autoria: | ARAÚJO, E. F.; GIBSON, E. L.; SANTOS, A. R. dos; GONÇALVES, E. de O.; WENDLING, I.; ALEXANDRE, R. S.; PAOLA, L. A. V.
Afiliação: | Emanuel França Araújo, Universidade Federal do Espírito Santo; Elbya Leão Gibson, Universidade Federal do Espírito Santo; Aline Ramalho dos Santos, Universidade Federal do espírito Santo; Elzimar de Oliveira Gonçalves, Universidade Federal do Espírito Santo; IVAR WENDLING, CNPF; Rodrigo Sobreira Alexandre, Universidade Federal do Espírito Santo; Lunalda Aparecida Vaz Pola, Universidade Federal do Espírito Santo.
Título: | Mini-cutting technique for vegetative propagation of Paratecoma peroba.
Ano de publicação: | 2019
Fonte/Imprenta: | Cerne, v. 25, n. 3, p. 314-325, 2019.
Idioma: | Inglês
Conteúdo: | Paratecoma peroba is a native Brazilian forest species of great economic and ecological interest, which is currently at risk of extinction owing to excessive wood exploration. The use of the mini-cutting technique could facilitate the vegetatively propagation of this species. The objective of the present study was to establish a vegetative propagation protocol for P. peroba using the mini-cutting technique. In the first experiment, were tested five concentrations of indolbutiric acid (IBA; 0, 1, 2, 4 and 8 g.L-1) and two types of substrates (sand and a commercial substrate based on ground Pinus bark, coconut powder, and mineral additives). In the second experiment, were tested three types of mini-cuttings (apical of 6 cm and 10 cm, and intermediary of 4 cm) and two leaf area sizes (total leaf area and reduced to 50% of leaf area). The results showed that P. peroba could be vegetatively propagated using the mini-cutting technique with up to 82.5% rooting. There was only 5.6% of mini-cutting rooted in sand. High concentrations of IBA promotes decrease in rooting and number of roots. The 10 cm apical mini-cuttiing tend to form clones with better quality standards. The maintenance of the leaf area promotes the attainment of roots with greater root surface area, volume and dry mass of P. Peroba plants.v.25 n.3 2019
Palavras-Chave: | Adventitious rooting; Clonal forestry; Foliar architecture; Indole-3-butyric acid; Mini-cut type; Paratecoma peroba.
Thesagro: | Espécie Nativa; Propagação Vegetativa.
Thesaurus Nal: | Vegetative propagation.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/206008/1/2019-Ivar-Cerne-mini-cutting.pdf
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (57155-1) - UPC - AP - DD -  -  -  - DIS