Propagação de Thunbergia mysorensis (Wight) por estaquia

Heintze, Willian; Petry, Henrique Belmonte; Schwarz, Sérgio Francisco; Souza, Paulo Vítor Dutra de; Schäfer, Gilmar

doi:10.1590/0103-8478cr20140764

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…No effect of IBA concentrations indicates that the survival of sapucaia hardwood cuttings is not related to the regulator, but actually to the type of cutting used. This indicates an absence of toxicity of the IBA at the concentrations used, since it is easily observed by the marked reduction in rooting or death of cuttings with increasing concentration of idol-3butyric acid, according to Heintze et al (2015). In general, the hardwood cuttings in our study showed a good survival rate, with a mean of 52.75%, during the period evaluated.…”

Section: Rooting Potential Of Sapucaia Cuttingssupporting

confidence: 62%

Vegetative Rescue and Clonal Propagation of Lecythis Pisonis Cambess

et al. 2020

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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.

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Section: Rooting Potential Of Sapucaia Cuttingssupporting

confidence: 62%

Vegetative Rescue and Clonal Propagation of Lecythis Pisonis Cambess

et al. 2020

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“…Para o fator número de folíolos, ocorreu o aumento no percentual de enraizamento em estacas com mais folíolos (66%) como verificado por Vignolo et al (2014) e Heintze et al (2015), e o não enraizamento das estacas sem folíolos. Assim, a presença de folhas nas estacas confirma o papel chave destas para a formação do novo sistema radicular, sendo responsável pela produção de assimilados e de substâncias como auxinas, sendo esta última sintetizada nesses locais (TAIZ e ZEIGER, 2009).…”

Section: Resultsunclassified

Influência do número de folíolos e nós no enraizamento de estacas semilenhosas de cipó-de-são-joão

Milani

Heintze

Schäfer

et al. 2015

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RESUMOO cipó-de-são-joão (Pyrostegia venusta (Ker-Gawl.) Miers) é uma trepadeira semilenhosa, vigorosa, nativa, com ocorrência em todos os biomas brasileiros e com potencial ornamental. Informações técnicas sobre a propagação desta espécie irão contribuir para a produção de mudas e com isso, o seu maior uso no paisagismo. O objetivo do trabalho foi avaliar a influência do número de folíolos e nós no enraizamento de estacas semilenhosas de cipó-de-são-joão. O experimento foi conduzido sob condições de câmara de nebulização intermitente. O delineamento experimental utilizado foi de blocos casualizados em fatorial 2 x 3, sendo respectivamente estacas com um ou dois nós, e zero, um ou dois folíolos. Utilizaram-se quatro repetições com parcelas experimentais constituídas por 12 estacas acondicionadas em substrato de casca de arroz carbonizada, em bandejas de poliestireno expandido com 72 células. Avaliou-se aos 84 dias: o percentual de estacas enraizadas; o comprimento de brotações, a massa seca de brotações, e, por estaca enraizada, a média de: número de raízes -de primeira ordem; comprimento máximo de cada raiz de primeira ordem, volume e a massa seca de raízes. Observou-se que estacas com dois folíolos possibilitaram 66% de enraizamento, maior comprimento e massa seca de brotações. A maior qualidade do sistema radicular ocorre com estacas com dois folíolos e dois nós. A propagação de cipó-de-são-joão é eficiente através do uso de estacas semilenhosas, contendo dois nós e dois folíolos, mantidas em casa de vegetação sob nebulização intermitente. Palavras-chave: Pyrostegia venusta, estaquia, produção de mudas, paisagismo. ABSTRACT Influence of leaf number and nodes on the rooting of semiwoody cuttings of flame vineThe flame vine (Pyrostegia venusta (Ker-Gawl.) Miers) is a semihardwood vine, vigorous, native, native, occurring in all Brazilian biomes and ornamental potential. Technical information about the propagation of this species will contribute to the production of seedlings and with that, their greatest use in landscaping. This study aimed to evaluate the influence of the number of leaves and nodes in rooting intermediate flame vine. The experiment was conducted under conditions of intermittent mist. The experimental design was a randomized block in factorial 2 x 3, being respectively cuttings with one or two nodes, and zero, one or two leaflets. We used four replicates with plots consisting of 12 cuttings placed in substrate of rice hulls in polystyrene trays with 72 cells. We evaluated at 84 days the porcentage of rooted cuttings, length of shoots, dry weight of shoots and, per cutting, average: number of roots -first order; maximum length of each root of the first order, volume and dry weight of roots. It was observed that cuttings with two leaflets enabled 66% of rooting, greater length and dry mass of shoots. The higher quality of the root system occurs with stakes with two leaflets and two nodes. The spread of flame vine is efficient with semi-hardwood cuttings with two nodes and two leaflets, kept in a ...

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“…In contrast, Heintzei et al [22] and Hussein [23] observed in Thunbergia mysorensis and Thunbergia grandiflora higher rooting percentage in cuttings collected in the spring. In Table 2, it was observed that there were no differences in the rooting percentage of stem cuttings treated with IBA and boric acid applied separately, as well as IBA and boric acid applied combined.…”

Section: Sources Of Variationmentioning

confidence: 86%

Indole Butyric and Boric Acids in the Rooting of Atemoya “Thompson” Stem Cuttings

Gonçalves¹,

Nasser²,

Arruda³

et al. 2018

JAST-B

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Abstract:The current study aimed to evaluate the effect of indole butyric acid (IBA) and boric acid to induce rooting on atemoya "Thompson" cuttings. A randomized block design with 10 treatments and four blocks was laid out. The treatments consisted in the use of different levels of IBA (i.e., 0, 500, 1,000, 2,000 and 4,000 mg/L) with or without boric acid at 150 mg/L. The cuttings were placed to root in expanded polystyrene (EPS) trays with 72 cells and kept in a greenhouse under misting. At 120 d after planting, leaf dry and fresh masses (g), root dry and fresh masses (g), percentage of rooting, live cuttings (LC), live cuttings with callus (LCC), number of roots per cuttings and number of emitted leaves (NEL) were evaluated. Data were submitted to analysis of variance and comparison of means by Tukey test at 5% probability. Results indicated no statistically significant differences in both application methods (separate or associated with boric acid) for all evaluated variables, except for LC, in which boric acid provided higher survival rates. It could be concluded that the propagation method using either separate IBA application or associated with boric acid is unsuitable to induce rooting on atemoya "Thompson" cuttings.

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Propagação de Thunbergia mysorensis (Wight) por estaquia

Abstract: RESUMO A estaquia é um método muito eficiente de propagação de plantas. Objetivando avaliar o efeito da época de coleta do material (verão e primavera) e concentrações de ácido indolbutírico (AIB : 0; 1500; 3000; 6000mg L -1

Cited by 3 publications

References 2 publications

Vegetative Rescue and Clonal Propagation of Lecythis Pisonis Cambess

Vegetative Rescue and Clonal Propagation of Lecythis Pisonis Cambess

Influência do número de folíolos e nós no enraizamento de estacas semilenhosas de cipó-de-são-joão

Indole Butyric and Boric Acids in the Rooting of Atemoya “Thompson” Stem Cuttings

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