Enraizamento de miniestaca caulinar e foliar na propagação vegetativa de cedro-rosa (Cedrela fissilis Vell.)

Xavier, Aloísio; Santos, Glêison Augusto dos; Oliveira, Marcelo Lelis de

doi:10.1590/s0100-67622003000300011

Cited by 55 publications

(54 citation statements)

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“…Rooting is one of the critical aspects of vegetative propagation (XAVIER et al, 2009). In general, the rates of rooting obtained in this study were low when WENDLING, I. e BRONDANI, G.E.…”

Section: Figura 4 -Sobrevivência Na Saída Da Casa De Vegetação (A) Cmentioning

confidence: 57%

“…Apical shoots are typically used as cuttings for araucaria (IRITANI et al, 1983;1986), but no comparative studies have been made between cutting types. In other forest species some studies indicate no difference in rooting between apical and non-apical cuttings (XAVIER et al, 2003), while others suggest that apical cuttings produce better results (RIECKERMANN et al, 1999), suggesting the need for further studies in araucaria.…”

Section: Figura 4 -Sobrevivência Na Saída Da Casa De Vegetação (A) Cmentioning

confidence: 99%

“…Such a system has the added advantage of conserving superior genotypes, maintaining valuable traits, and reducing the high risk period when the tree is small and fragile (CUEVAS-PEREZ et al, 1992). The development of a successful system of vegetative production will also allow producers to propagate plants with the same characteristics as the parent trees (ELDRIDGE et al, 1994) and, potentially, to engage in propagation throughout the year (ASSIS et al, 2004;XAVIER et al, 2009). Despite these potential advantages, scientists have so far been unable to develop an effective system of vegetative propagation for A. angustifoliapreliminary attempts resulted in no more than 25% of cuttings becoming successfully rooted (IRITANI and SOARES, 1983), too low for development on a commercial scale.…”

Section: Introductionmentioning

confidence: 99%

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VEGETATIVE RESCUE AND CUTTINGS PROPAGATION OF Araucaria angustifolia (Bertol.) Kuntze

Wendling

Brondani

2015

Rev. Árvore

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-Brazilian pine or araucaria (Araucaria angustifolia) is a coniferous tree with great economic, social and environmental importance in southern Brazil, being exploited for both wood production and for its edible pine nuts. However, no efficient cloning techniques are available and, therefore, the purpose of this study was to evaluate the effectiveness of vegetative rescue methods for cuttings propagation of the species. Shoots/cuttings were generated in two ways: 26 years old trees underwent coppicing and 20 years old trees had the primary branches on the upper third of crown pruned at 2, 20 and 50 cm from the main trunk. Orthotropic shoots were rooted after application of indole-3-butyric acid (IBA) at 0, 2, 4 and 6 g.L -1. Coppicing produced 47 cuttings per plant with 90% orthotropic shoots, while pruning resulted in 182 cuttings per plant with 44% orthotropic shoots. Rooting success indexes were low with no influence of IBA, although they are slightly superior to the ones available in the literature for the species, ranging from 12 to 30% for the coppice shoots and from 0 to 28% for the branches shoots. We conclude that both vegetative rescue techniques are viable and have potentially important applications. Coppicing is recommended for the propagation aiming the production of wood, while shoots derived from the side branches of the crown are more appropriate for seeds orchards formation.Keywords: Brazilian pine; Cutting propagation; Clonal forestry. RESGATE VEGETATIVO E ESTAQUIA DE Araucaria angustifolia (Bertol.) Kuntze RESUMO -A araucária, ou pinheiro-brasileiro (Araucaria

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“…Rooting is one of the critical aspects of vegetative propagation (XAVIER et al, 2009). In general, the rates of rooting obtained in this study were low when WENDLING, I. e BRONDANI, G.E.…”

Section: Figura 4 -Sobrevivência Na Saída Da Casa De Vegetação (A) Cmentioning

confidence: 57%

Section: Figura 4 -Sobrevivência Na Saída Da Casa De Vegetação (A) Cmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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VEGETATIVE RESCUE AND CUTTINGS PROPAGATION OF Araucaria angustifolia (Bertol.) Kuntze

Wendling

Brondani

2015

Rev. Árvore

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“…Este resultado pode ser explicado pelo fato de se tratar de material juvenil, em que o balanço hormonal interno é favorável à proliferação celular (Xavier et al, 2003). Costa et al (2010) observaram que o segmento cotiledonar tem maior capacidade de regeneração que o segmento nodal, em explantes de mulungu (Erythrina velutina Willd).…”

Section: Resultsunclassified

“…A partir de 0,3 mg L -1 de ANA, observouse decréscimo na altura das plantas com as três concentrações de BAP, em média 1,72 cm (Figura 2). Isso pode estar ligado ao fato de que as citocininas estimulam maior produção da parte aérea até uma determinada concentração, o que varia de acordo com a espécie, e pode ocorrer, em certas condições, resposta negativa ao aumento na concentração hormonal (Xavier et al, 2003).…”

Section: Resultsunclassified

Micropropagação de sucupira-preta por meio de gemas axilares

Moura

Titon

Fernandes

et al. 2012

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o uso de reguladores de crescimento, aditivos antioxidantes, tipo de explantes e intensidade de cobertura de mudas aclimatizadas, na micropropagação de sucupira-preta (Bowdichia virgilioides) por meio de gemas axilares. Os explantes foram cultivados para a multiplicação em meio de cultura básico WPM, suplementado com concentrações de benzilaminopurina (BAP). No alongamento, os tratamentos foram combinações de ácido naftalenoacético (ANA) e BAP adicionadas ao meio. Para o enraizamento, as brotações foram colocadas em meio com concentrações de ácido indolbutírico, ou em meio com combinações dos aditivos polivinilpirrolidona e carvão ativado, em diferentes concentrações de ANA. As plantas foram transplantadas para copos de plástico, com substrato, e cobertas com saco de polietileno. Posteriormente, esses sacos foram retirados, ou perfurados, ou não retirados, o que constituiu os tratamentos de pré-aclimatização in vitro. A aclimatização ex vitro foi realizada após o período de pré-aclimatização in vitro. A sucupira-preta apresentou melhor micropropagação com emprego de: segmentos cotiledonares e 0,3 mg L -1 de BAP, na multiplicação; 0,3 mg L -1 de ANA e 0,03 mg L -1 de BAP, no alongamento; e carvão ativado (2,0 mg L -1 ), no enraizamento e na pré-aclimatização in vitro, com uso de cobertura de plástico transparente em torno da muda.Termos para indexação: Bowdichia virgilioides, cultura de tecidos, espécie nativa, propagação, reguladores de crescimento. Sucupira-preta micropropagation through axillary budsAbstract -The objective of this work was to evaluate the use of growth regulators, antioxidant additives, type of explants, and coverage intensity of acclimatized seedlings in the micropropagation of sucupira-preta (Bowdichia virgilioides) through axillary buds. Explants were cultured for multiplication on WPM medium, supplemented with concentrations of benzylaminopurine (BAP). In the elongation phase, treatments consisted of naphthaleneacetic acid (NAA) and BAP combinations added to the medium. For rooting, shoots were inoculated in medium containing concentrations of indolbutyric acid or combinations of the additives polyvinylpyrrolidone and charcoal, in different NAA concentrations. Plants were transplanted to plastic cups with substrate, and covered with polyethylene bags. Later, the bags were withdrawn, or perforated, or not withdrawn, which constituted the in vitro pre-acclimatization treatments. Ex vitro acclimatization was carried out after the period of in vitro pre-acclimatization. Sucupira-preta had the best micropropagation using: cotyledon segments and 0.3 mg L -1 BAP, for multiplication; 0.3 mg L -1 NAA and 0.03 mg L -1 BAP, for elongation; and 2,0 mg L -1 activated carbon for rooting and for the in vitro pre-acclimatization, with the use of a transparent plastic cover around seedling.Index terms: Bowdichia virgilioides, tissue culture, native species, propagation, growth regulators. IntroduçãoA sucupira-preta (Bowdichia virgilioides Kunth.) é uma espécie ...

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Don’t leave me behind: viability of vegetative propagules of the clonal invasive Carpobrotus edulis and implications for plant management

Souza‐Alonso

González

2017

Biol Invasions

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Enraizamento de miniestaca caulinar e foliar na propagação vegetativa de cedro-rosa (Cedrela fissilis Vell.)

Cited by 55 publications

References 1 publication

VEGETATIVE RESCUE AND CUTTINGS PROPAGATION OF Araucaria angustifolia (Bertol.) Kuntze

VEGETATIVE RESCUE AND CUTTINGS PROPAGATION OF Araucaria angustifolia (Bertol.) Kuntze

Micropropagação de sucupira-preta por meio de gemas axilares

Don’t leave me behind: viability of vegetative propagules of the clonal invasive Carpobrotus edulis and implications for plant management

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