Efeito do estiolamento parcial e do ácido indolbutírico (IBA) no enraizamento de estacas de ramos de goiabeira serrana (Feijoa sellowiana, Berg)

Figueiredo, Sérgio Lucemar Bonorino; Kersten, Elio; Schuch, Márcia Wulff

doi:10.1590/s0103-90161995000100029

Cited by 8 publications

(5 citation statements)

References 3 publications

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“…No presente trabalho, houve a formação de raízes em todos os tratamentos, intensificados com o uso de AIB, demonstrando ser a espécie G. Biloba de fácil propagação. Contudo, algumas espécies, como a goiabeira serrana (Feijoa sellowiana) são difíceis de enraizar, mesmo com o uso de altas concentrações de AIB, iguais a 5000, 7000, 9000 e 11000 mg L -1 (FIGUEIREDO et al, 1995). É importante testar várias concentrações do regulador vegetal, permitindo a escolha mais econômica e menos fitotóxica para a espécie.…”

Section: Resultsunclassified

Enraizamento de estacas de Ginkgo biloba tratadas com ácido indolbutírico e ácido bórico

Valmórbida

Lessa

2008

Ciênc. agrotec.

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RESUMOObjetivou-se neste trabalho estudar o efeito do ácido indolbutírico (AIB) e do ácido bórico (B) no enraizamento de estacas de Ginkgo biloba. Em estacas com duas folhas, medindo 15 cm de comprimento foram provocadas duas lesões na base de aproximadamente 2 cm, expondo o câmbio e procedeu-se à imersão por 10 segundos no tratamento correspondente, AIB (0, 1000, 2000 e 3000 mg L Termos para indexação: Auxinas, Ginkgo biloba, propagação vegetativa. ABSTRACTThe aim of the work was to study the effect of indolbutyric (IBA) and boric (B) acids to root Ginkgo biloba cuttings. At the base of cuttings, with two leaves and 15 cm of length, were made two lesions with 2 cm to expose the cambium. Cuttings were treated for a period of 10 seconds with four concentrations of IBA (0, 1000, 2000 and 3000 mg L -1 ) combined with two concentration of B (0 and 150 mg L -1 ). After that, cuttings were taken in polypropylene trays filled with washed sand. The experimental design was of randomized blocks in the factorial arrangement (4x2), with six replications. After 70 days, evaluations were done considering rooted, non-rooted, and dead cuttings, diameter and length of the roots. The data were submitted to ANOVA and previously tested for normality by the Shapiro-Wilk Test. Rooting with IBA at 2000 mg L -1 (80,55%) was better than IBA at zero mg L -1 (55,56%), not differing from the other treatments. Boric acid (B) at 150 µg mL -1 didn t increase rooting rate, and dead cuttings. There was no interaction between IBA and B concentrations. No effect of IBA or B in the diameter and the length of roots was observed.

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Section: Resultsunclassified

Enraizamento de estacas de Ginkgo biloba tratadas com ácido indolbutírico e ácido bórico

Valmórbida

Lessa

2008

Ciênc. agrotec.

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“…Its action is related to the synthesis of nucleic acids and proteins, cell wall alterations and enzymatic activities increase (FIGUEIREDO et al, 1995). On the other hand, the cutting behavior concerning phytoregulators varies according to the species, the clone (CHUNG, LEE, 1994), the propagating material maturation state, the cutting type, time of year, concentration and application method (BASTOS, 2006).…”

Section: Introductionmentioning

confidence: 99%

IBA EFFICIENCY ON MINI-CUTTING ROOTING FROM TEAK (Tectona grandis Linn F.) CLONES

et al. 2016

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-This study aimed to evaluate IBA efficiency in mini-cuttings rooting based on four Tectona grandis clones. Vegetative samples were collected in a hydroponic mini-clonal hedge in Verde Novo reforestation company at Colider, Mato Grosso. A factorial arrangement (4 x 6) was utilized, based on Carapá, Ipê, GU5 and TB7 clones vs six IBA dosages (0, 1000, 2000, 4000, 8000 and 16000 mg L -1 ), in a randomized block design based on three repetitions and 16 mini-cuttings per experimental unit. Cutting evaluations were based on survival and rooting rates after greenhouse conditions, after shadow-house, and at sun exposure, besides, total height, collar diameter, aerial and root biomass were also analyzed. Results registered a 95,4% average survivance rate as well as a 91,8% rooting rate, considered as very high for this tree species. IBA dosages utilization did not produce a significative effect on rooting mini-cuttings from these investigated clones. However, there were different responses among clones, which suggests a genotypic effect.

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“…A preservação das folhas garante a sobrevivência das estacas, tanto pela síntese de carboidratos através da fotossíntese, como pelo fornecimento de auxinas e outras substâncias que são importantes no processo de formação de raízes, estimulando a atividade de troca e a diferenciação celular (ALVARENGA, 1990;FIGUEIREDO;SCHUCH, 1995). A realização de lesões na base das estacas também pode aumentar o índice de enraizamento, pois, além de permitir maior absorção de água, faz com que haja o rompimento da barreira física exercida pelos anéis de esclerênquima.…”

Section: Introductionunclassified

Influência de folhas e lesões na base de estacas herbáceas no enraizamento de goiabeira da seleção 8501-9

et al. 2010

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ResumoCom o objetivo de avaliar o potencial de enraizamento da seleção 8501-9 de goiabeira utilizou-se estacas herbáceas com 10-12 cm de comprimento em duas formas de preparo (corte simples sem lesão e exposição do câmbio) e três intensidades de supressão das folhas (sem folhas, com folhas cortadas ao meio e folhas intactas). O delineamento experimental foi inteiramente casualizado com cinco repetições em arranjo fatorial 2 x 3, com dez estacas por parcela. Após tratamento com AIB as estacas foram colocadas para enraizamento em caixas plásticas (44 x 30 x 7 cm) contendo casca de arroz carbonizada, em câmara de nebulização. Após 78 dias avaliou-se a retenção foliar, a sobrevivência das estacas, o número de estacas enraizadas e de raízes, o comprimento e as massas fresca e seca das raízes. A interação entre lesão e presença de folhas não foi significativa, indicando que estes fatores agem de forma independente em relação aos fatores estudados. A supressão das folhas resultou em morte das estacas. A exposição do câmbio não proporcionou vantagens no enraizamento de estacas herbáceas. As estacas com um par de folhas inteiras apresentaram maiores massas fresca e seca de raízes em relação às estacas com folhas cortadas, já as estacas sem folhas não apresentaram formação de raízes, sendo a presença de folhas fundamental para a promoção do enraizamento. Palavras-chave: Psidium guajava L, reguladores vegetais, propagação vegetal AbstractWith the objective of evaluate the potential of rooting of the selection of guava tree 8501-9 were using herbaceous cutting with 10-12 cm of length in two make of the prepared (simple cut without lesions and cambium exposition), and three suppression intensity of the leaves (without leaves, with half leaves and intact leaves). The experimental design was completely randomized with five repetitions in factorial arrangement 2 x 3, with ten cutting for parcel. After the preparation with IBA the cutting had been placed to rooting in plastic box (44 x 30 x 7 cm) with carbonized rice hulls, in camera of nebulization. After 78 days, evaluated the leaf retention, survive of the cutting, the number of cutting roots and of roots, the length and fresh and dry mass of the roots. The interaction between lesions and presence of leaves was not significant, indicating like this factors act in independent form in relation the study factors. The leaves suppression resulted in cutting death. The cambium exposition not proportion vantage on root cutting herbaceous. For the gotten results it was observed that the interaction between lesion and leaf presence was not significant, indicating that these factors act of independent form in relation to the evaluated parameters. Cutting with base lesion presented addition of only 10% of foliar retention and percentage of roots cutting. Cutting with a pair of leaves had been superior to the parameters of the mass fresh and dry of root in relation to the cutting with half leaves, and the cutting without leaves not presented formation of roots being presence of leaves fu...

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Efeito do estiolamento parcial e do ácido indolbutírico (IBA) no enraizamento de estacas de ramos de goiabeira serrana (Feijoa sellowiana, Berg)

Cited by 8 publications

References 3 publications

Enraizamento de estacas de Ginkgo biloba tratadas com ácido indolbutírico e ácido bórico

Enraizamento de estacas de Ginkgo biloba tratadas com ácido indolbutírico e ácido bórico

IBA EFFICIENCY ON MINI-CUTTING ROOTING FROM TEAK (Tectona grandis Linn F.) CLONES

Influência de folhas e lesões na base de estacas herbáceas no enraizamento de goiabeira da seleção 8501-9

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