Produtividade de minicepas de cedro australiano e remoção de nutrientes pela coleta sucessiva de miniestacas

Souza, Juliana Sobreira de; Barroso, Déborah Guerra; Silva, Mírian Peixoto Soares da; Ferreira, Daniele de Alvarenga; Gravina, Geraldo de Amaral; Carneiro, José Geraldo de Araújo

doi:10.5902/1980509813324

Cited by 10 publications

(13 citation statements)

References 15 publications

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“…Souza et al (2014) and Silva et al (2012) found similar results using minigardens of Australian Red Cedar (Toona ciliata) evaluated in tubes after 4 successive mini-cutting collects. In addition, Xavier et al (2003), Cunha, Wendling andSouza Júnior (2005, 2008) also found 100% survival rates for (via minicuttings from minigardens in tubes) of Cedrela fissilis after 4 collects Eucalyptus benthamii, after 5 collects and Erythrina falcata after 8 collects, respectively.…”

Section: Survival Of the Ministumpssupporting

confidence: 63%

“…Ferriani et al (2011) found high mini-cutting production in Piptocarpha angustifolia that varied between 113.4 and 259.2 minicuttings per m 2 in winter and spring, respectively. Souza et al (2014) obtained lower results regarding to the present study when studying a minigarden system in tubes, finding an average productivity of 113 minicuttings per m 2 every 31 days, with a density of 112 ministumps per m 2 of nursery. Table 1 shows the correlations among the number of minicuttings produced per mini-strain and the heights and diameters of the seedlings that formed the minigarden.…”

Section: The Productivity Of the Multiclonal Minigardenmentioning

confidence: 63%

“…According to Souza et al (2014), nitrogen and potassium were the most extracted nutrients by australian cedar ministumps during the collects periods in both grown systems (tubes and duct channels). So, it is necessary to fertilize minigardens, to keep high productivity levels of ministumps along the collects.…”

Section: The Productivity Of the Multiclonal Minigardenmentioning

confidence: 99%

“…This technique is also viable for species such as Cedrela fissilis , Erythrina falcata (WENDLING; FERRARI; DUTRA, 2005), Pinus taeda (ALCANTARA et al, 2007), Grevillea robusta (SOUZA JUNIOR; QUOIRIN, WENDLING, 2008), and Toona ciliata SOUZA et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Productivity of polyclonal minigarden and rooting of Handroanthus heptaphyllus Mattos minicuttings

et al. 2015

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Aiming the improvement of the quality of techniques related to the growth of "ipê-roxo" cuttings, this study had as objective to evaluate the productivity of Handroanthus heptaphyllus Mattos ministumps and the rooting capacity of the minicuttings in successive collections in the presence and absence of exogenous auxin. Seedlings were grown in 280 cm 3 tubes with selected different sources of seeds. At 141 days after the sowing, seedlings were pruned at 8 cm from the collar with the goal to establish the minigarden. The productivity of ministumps over successive collections as well as the need to apply indol-3-butiric acid on the roots of the minicuttings were evaluated. Eight collects of minicuttings were carried out, at three, five, six, seven, eight, nine, 10 and 11 months after the pruning. In each of those cycles the number of minicuttings were quantified per mini-stump. Before their staking in 180 cm 3 tubes, half of the minicuttings from each cycle were treated with 8000 mg L -1 of Indole-3-Butiric Acid (IBA) (2 seconds). The ministumps tolerated the pruning (with 100% survival); over 70% of the ministumps produced minicuttings along all the time in each collection cycle. A cyclical behavior in the minigarden was observed with higher productivities of the ministumps at 8 and 11 months after pruning of seedlings. The use of IBA stimulated more robust root systems of the cuttings, although this was not a condition for rooting. Key words: Ministumps, indol-3-butiric acid, ipê-roxo ResumoNo intuito de aprimorar as técnicas para a produção de mudas de ipê-roxo, visando à qualidade, este estudo tem como objetivo avaliar a produtividade de minicepas de Handroanthus heptaphyllus Mattos e a capacidade de enraizamento das miniestacas em coletas sucessivas na presença e na ausência de auxina exógena. As plântulas produzidas a partir de sementes foram cultivadas em tubetes de 280 cm 3 . Aos 141 dias após a semeadura, as mudas foram podadas a 8 cm da base, com o objetivo de estabelecer o minijardim. A produtividade das minicepas em sucessivas coletas, bem como a necessidade de se aplicar o ácido indol-3-butírico no enraizamento das miniestacas foram avaliadas. Oito coletas de miniestacas foram realizadas, em três, cinco, seis, sete, oito, nove, 10 e 11 meses após a poda. Em cada um destes ciclos, o número de miniestacas foi quantificado por minicepa. Antes do estaqueamento em tubetes de 180 cm 3 , metade das miniestacas de cada ciclo foi tratada com 8000 mg L -1 de ácido indol-3-butírico (AIB) por 2 segundos. As minicepas toleraram a poda (com 100% de sobrevivência), mais de 70% das minicepas produziram miniestacas ao longo do tempo em cada ciclo de coleta. Um comportamento cíclico no minijardim foi observado com maiores produtividades das minicepas aos 8 e 11 meses após a poda das mudas. O uso de AIB estimulou sistemas radiciais mais robustos nas miniestacas, embora esta não seja uma condição para o enraizamento. Palavras-chave: Minicepa, ácido indolbutírico, ipê-roxo

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Section: Survival Of the Ministumpssupporting

confidence: 63%

Section: The Productivity Of the Multiclonal Minigardenmentioning

confidence: 63%

Section: The Productivity Of the Multiclonal Minigardenmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Productivity of polyclonal minigarden and rooting of Handroanthus heptaphyllus Mattos minicuttings

et al. 2015

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“…The forestry team at UENF has long focused on the vegetative propagation of Australian cedar by minicuttings, and has demonstrated the potential and viability of this technique in numerous works developed by Moraes (2008), Souza et al (2009), Ferreira et al (2012, Silva et al (2012) and Souza et al (2014). In this body of work, minicuttings were derived from ministumps grown from seeds.…”

Section: Introductionmentioning

confidence: 99%

Growth and quality of australian cedar saplings originated from different multiclonal minigarden systems

Silva

Barroso

Souza

et al. 2016

SCA

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Forestry researchers often evaluate minicutting vegetative propagation of Australian cedar (Toona ciliata) as a viable technique for this species. However, the adoption of minigarden systems for commercial propagation still requires viability and quality testing of saplings produced after multiple harvests. In the present work, we evaluate survival, growth, and quality of Australian cedar saplings grown from minicuttings originating from multiple harvests of ministumps planted in gutter or tube systems. Experiments were conducted in a greenhouse using a completely randomized design with a 2 × 4 factorial treatment structure (two minigarden systems and four minicutting harvests). For the gutter system, six minicutting harvests were performed 50, 86, 115, 149, 177 and 212 days after planting ministumps, whereas for the tube system, four harvests were performed 115, 149, 177 and 212 days after planting ministumps. At the end of each sapling production cycle (105 days after each minicutting harvest), saplings were evaluated for survival, foliar area, dry mass of aerial parts, number and length of adventitious roots, dry mass of the root system, height to diameter ratio, ratio between the dry mass of aerial parts and dry mass of root system, and Dickson's Quality Index. Sapling survival was not affected by minigarden system, except for a reduction observed in fourth cycle saplings from the tube system. Sapling quality was also similar between systems. However, sapling growth potential decreased with production cycle, indicating that ministumps lose vigor with multiple harvests. Key words: Minicuttings. Sapling quality. Toona ciliata. ResumoA propagação vegetativa por miniestaquia do cedro australiano (Toona ciliata) tem sido alvo de pesquisas, mostrando ser uma técnica viável para esta espécie. Entretanto, para a adoção de sistemas de minijardins em canaletão e em tubetes na propagação comercial, ainda é necessário testar a qualidade das mudas produzidas ao longo de colheitas sucessivas. Objetivou-se com este trabalho avaliar a sobrevivência, o crescimento e a qualidade de mudas de cedro australiano, produzidas por miniestacas, obtidas de minicepas manejadas em sistemas de canaletões e em tubetes, ao longo das colheitas sucessivas. O experimento foi conduzido em casa de vegetação em delineamento inteiramente casualizado em esquema fatorial 2x4 (dois sistemas de minijardins e quatro colheitas de miniestacas). No sistema em canaletão foram realizadas seis colheitas de miniestacas aos 50, 86, 115, 149, 177 e 212 dias após recepagem e quatro no sistema em tubetes aos 115, 149, 177 e 212 dias após recepagem. Ao final de cada ciclo de produção (105 dias a partir de cada colheita), as mudas foram avaliadas quanto à sobrevivência, área foliar, massa seca da parte aérea, número e comprimento das raízes adventícias, massa seca do sistema radicular, as relações entre a altura e o diâmetro, massa seca da parte aérea e a massa seca das raízes e o Índice de Qualidade de Dickson. A sobrevivência das mudas não foi afetada pe...

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Establishment and in vitro morphogenesis of sapucaia explants (Lecythidaceae)

Mello

Gonçalves

Alexandre

et al. 2020

In Vitro Cell.Dev.Biol.-Plant

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Produtividade de minicepas de cedro australiano e remoção de nutrientes pela coleta sucessiva de miniestacas

Cited by 10 publications

References 15 publications

Productivity of polyclonal minigarden and rooting of Handroanthus heptaphyllus Mattos minicuttings

Productivity of polyclonal minigarden and rooting of Handroanthus heptaphyllus Mattos minicuttings

Growth and quality of australian cedar saplings originated from different multiclonal minigarden systems

Establishment and in vitro morphogenesis of sapucaia explants (Lecythidaceae)

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