Propagação de três genótipos de abieiro (Pouteria caimito) por estaquia de ramos herbáceos
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Data
2008-01-01
Autores
Almeida, Eduardo José de [UNESP]
Jesus, Natanael de [UNESP]
Scaloppi, Eliana Mayra Torrecillas [UNESP]
Martins, Antonio Baldo Geraldo [UNESP]
Araújo, Marcos Schwank
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Editor
Instituto Nacional de Pesquisas da Amazônia
Resumo
Foram selecionadas três plantas de um pomar comercial, com características agronômicas desejáveis, proveniente de propagação seminífera, que forneceram estacas herbáceas, contando com cerca de 15 cm de comprimento, um par de folhas no nó superior, corte em bisel na base e foram tratadas com 4 doses de IBA (0, 1.000, 3.000 e 5.000 mg.l-1) e, posteriormente, plantadas em caixas plásticas perfuradas contendo como substrato, vermiculita textura média. A condução do experimento foi em ambiente de 50 % de sombreamento, sob nebulização intermitente. A análise estatística foi em esquema fatorial 3X4, (genótipos X doses de IBA), com 4 repetições de 10 estacas cada. Após 90 dias foram avaliados a percentagem de enraizamento e sobrevivência, o comprimento e número médio de raízes por estaca. O IBA não influenciou as variáveis analisadas. O genótipo somente induziu mais raízes na seleção 3 e maiores raízes nas seleções 1 e 3.
Three plants from a commercial orchard Pouteria caimito were selected, with desirable agronomic characteristics, original of seed propagation, which provided the herbaceous branches. These ones were prepared with about 15 cm of length, a pair of leaves on the higher node and diagonal cut on the bottom, after that they were treated with four doses of indolbutiric acid (IBA) (0, 1,000, 3,000 and 5,000 mg.l-1) and, then, planted on perforated plastic boxes, containing as substrate, medium texture vermiculite. The conduction of the trial was on a 50% shade doses), with 4 replicates of 10 branches each. After 90 days the percentage of rooting and survival, the length and average number of roots per branch were evaluated. The IBA has not influenced the analysed variables. The genotype has only induced a higher number of roots on the selection 3 and higher root length on the selections 1 and 3.
Three plants from a commercial orchard Pouteria caimito were selected, with desirable agronomic characteristics, original of seed propagation, which provided the herbaceous branches. These ones were prepared with about 15 cm of length, a pair of leaves on the higher node and diagonal cut on the bottom, after that they were treated with four doses of indolbutiric acid (IBA) (0, 1,000, 3,000 and 5,000 mg.l-1) and, then, planted on perforated plastic boxes, containing as substrate, medium texture vermiculite. The conduction of the trial was on a 50% shade doses), with 4 replicates of 10 branches each. After 90 days the percentage of rooting and survival, the length and average number of roots per branch were evaluated. The IBA has not influenced the analysed variables. The genotype has only induced a higher number of roots on the selection 3 and higher root length on the selections 1 and 3.
Descrição
Palavras-chave
Pouteria caimito, Propagação vegetativa, Estaquia, Regulador vegetal, Native Fruits, Vegetative propagation, Cutting, Vegetal Regulator
Como citar
Acta Amazonica. Instituto Nacional de Pesquisas da Amazônia, v. 38, n. 1, p. 1-4, 2008.