Crescimento e ciclo de produção de mudas de Eucalyptus em recipientes

Freitas, Teresa Aparecida Soares de; Fonseca, Maria Imaculada; Souza, Sandra Selma Marques de; Lima, Thâmara Moura; Mendonça, Andréa Vita Reis; Santos, Aline Pinto dos

doi:10.4336/2013.pfb.33.76.575

Cited by 13 publications

(19 citation statements)

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“…These differences in growth were observed for several forest species. Examples include the studies by José et al (2005) for Schinus terebinthifolius, Freitas et al (2013) and Eloy et al (2014) for different species of Eucalyptus spp, and Alves et al (2012) for Anadenanthera macrocarpa, Figure 1. Growth in height (cm) and diameter (mm) of Enterolobium contortisiliquum seedlings produced in three tube volumes over 120 days.…”

Section: Resultsmentioning

confidence: 99%

“…According to Freitas et al (2013), the highest production of shoot and root dry mass was for variables of great importance for the survival and initial development of the seedlings after planting due to greater biomass gains.…”

Section: Resultsmentioning

confidence: 99%

“…One of the major problems encountered in producing forest seedlings is the length of time they must remain in the nursery, so as not to affect survival or growth post-planting. According to Freitas et al (2013), the tube volume used is an extremely important factor, since it directly interferes in the quality of the seedlings, in addition to influencing their length of stay in the nursery. Correia et al (2013) points out that the tube volume also influences the space occupied by the seedlings in the nursery, the labor force used, the expenses for inputs and the transportation of these seedlings.…”

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confidence: 99%

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Performance of tamboril Seedlings Produced in Three Different Tube Volumes

et al. 2018

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The objective of this study was to evaluate the performance of tamboril (Enterolobium contortisiliquum (Vell.) Morong) seedlings and define their time in the nursery. Two experiments were carried out; in the first, the seedlings remained in the nursery for 120 days, and height, diameter, root deformation %, shoot dry mass, root system and leaf number were evaluated. In the second experiment, four seedlings of each repetition were transplanted into 35 x 40 cm bags and then assessed for height, diameter and dry weight of the shoot and root system. Data were submitted to analysis of variance (α = 0.05), Tukey test at 5% (qualitative factor) and sequential regression (quantitative factors). The seedlings produced in higher-tube volumes achieved conditions for planting at 90 days, while those produced in the lowest volume achieved the same conditions only after 120 days. Therefore, 180 cm 3 tubes and a 90-day stay in the nursery are recommended.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance of tamboril Seedlings Produced in Three Different Tube Volumes

et al. 2018

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“…Os resultados evidenciam os efeitos dos dois fatores analisados sobre o diâmetro do colo FLOREST A, Curitiba, PR, v. 46, n. 1, p. 39 -46, jan. / mar. 2016 Freitas et al (2013), em que maiores incrementos em DC foram verificados em mudas em tubetes de maiores volumes . Este resultado também sugere que o uso de tubetes com 200 cm 3 permite a manutenção de mudas de E. urograndis em v iveiro até 210 dias, no mínimo.…”

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“…A massa seca das raízes (MSR) é u m dos mais importantes e melhores parâmetros para estimar a sobrevivência e o crescimento in icial das mudas (GOM ES et al, 2013). Os resultados obtidos se assemelham aos encontrados em outros trabalhos, em que o tubete de menor volume causou restrição ao crescimento do sistema radicular (FREITAS et al, 2005;FREITAS et al, 2013;GOM ES et al, 2013 Freitas et al (2013) apontam que recip iente de volume reduzido limita o desenvolvimento das espécies testadas em todas as características avaliadas, sendo importante as empresas de produção de mudas de eucalipto analisarem o uso de um recip iente de maior volu me, que poderá resultar na redução do ciclo de produção. O índice de qualidade de Dickson é considerado um bom indicador da qualidade das mudas, pois em seu cálculo são considerados a robustez e o equilíbrio da distribuição da bio massa na muda, ponderando os resultados de vários parâmetros importantes empregados para avaliação da qualidade (CA LDEIRA et al, 2005;.…”

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CRESCIMENTO E QUALIDADE DE MUDAS DE Eucalyptus urophylla X Eucalyptus grandis EM DIFERENTES RECIPIENTES

Storck

Schorn

Fenilli

2016

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Resumo O experimento foi instalado com o objetivo de avaliar a qualidade e o desenvolvimento de mudas deEucalyptus urophylla x Eucalyptus grandis em diferentes idades em viveiro e produzidas em diferentes volumes de tubetes de polipropileno, visando determinar a idade ótima de expedição das mudas para cada volume de recipiente estudado. O substrato utilizado foi uma mistura contendo esterco bovino, terra de subsolo e casca de arroz carbonizada, na proporção de 2:1:1. Foram utilizados tubetes de 55, 100 e 200 cm³. O delineamento experimental foi inteiramente casualizado, em esquema fatorial 3 (tubetes) x 5 (idades), com 15 tratamentos, cada um com 100 plantas, totalizando 1500 indivíduos. As plantas foram avaliadas em diferentes idades: 90, 120, 150, 180 e 210 dias. Foram mensuradas em cada muda as seguintes variáveis em cada idade: altura, diâmetro do colo, biomassa seca de raízes, biomassa seca aérea, biomassa seca total, número de raízes secundárias e índice de qualidade de Dickson. Realizou-se a análise de variância das variáveis, cujos resultados foram comparados pelo teste de Tukey a 5% de probabilidade. Aos 90 dias, não se observaram diferenças significativas entre os tratamentos para a maioria das variáveis. Aos 180 dias houve diferenças significativas para todas as variáveis analisadas. Concluiu-se que a idade ótima para expedição de mudas em tubetes de 55 cm³ é aos 90 dias, aos 150 dias para mudas em tubetes de 100 cm³ e aos 180 dias para mudas em tubetes de 200 cm³. Palavras-chave: Qualidade; mudas; biomassa seca; raízes. Abstract Growth and quality of Eucalyptus urophylla S.T. seedlings Blake X Eucalyptus grandis Hill (ex Maiden) in different containers.An experiment was carried out to study the quality and the development of Eucalyptus urophylla x Eucalyptus grandis seedlings at different ages in nursery and produced (grown) in different sized polypropylene tubes, aiming to determinate the optimum age and size tube to dispatch the seedlings to the field. A mixture of manure bovine, subsoil and carbonized rice husk, in the proportion of 2:1:1. It was utilized tubes of 55, 100 and 200 cm³. The experimental plan was entirely randomized design with 15 treatments, on factorial 3 (tubes) x 5 (age) and 100 plants each, totaling 1500 individuals. The plants were measured if different ages: 90, 120, 150, 180 and 210 days. The following variables was measured in each seedling and age: height, stem diameter, roots dry biomass, shoot dry biomass, total biomass, secondary roots number and Dickson quality index. Results were compared by the analysis of variance (ANOVA), and the averages were compared by Tukey's test in a 5% probability. At 90 days of age, there were no significant differences between the treatments for most variables. At 180 days of age, there were significant differences for all analyzed variables. It was concluded that the optimum age to dispatch the seedlings produced in 55 cm³ tubes is 90 days of age, 150 days of age to seedlings produced in 100 cm³ tubes and 180 days of age to seedling produc...

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PRODUCTION OF SEEDLINGS OF Psidium cauliflorum Landrum & Sobral

et al. 2020

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ABSTRACT In the absence of knowledge about the procedures for production of seedlings of particular tree species, determining the nursery production period and quality standards are normally priority aspects for studies. As there is no information on the propagation of P. cauliflorum in the literature, the objective of this study was to determine the length of stay in the nursery, the size of the container and the quality standards for the production of seedlings of this species, based on the performance in the nursery and in the field. The work was carried out in two stages. In the first, seedling growth was analyzed in the nursery and in the second stage their performance was analyzed in the field. We tested three container sizes: 55 cm3 (12.5 cm-length x 2.9 cm-internal diameter), 180 cm3 (13.5 cm x 5.2 cm) and 280 cm3 (19.0 cm x 5.2 cm) and different periods of seedling production in tubes (15, 30, 45, 60, 75, 90, 105 and 120 days). It is recommended that P. cauliflorum seedlings be grown in containers of 180 cm3 (13.5 cm x 5.2 cm) and remain in these containers for at least 120 days. The experiment to assess post-planting performance was crucial to obtain conclusive results for the production of P. cauliflorum seedlings.

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Crescimento e ciclo de produção de mudas de Eucalyptus em recipientes

Cited by 13 publications

References 10 publications

Performance of tamboril Seedlings Produced in Three Different Tube Volumes

Performance of tamboril Seedlings Produced in Three Different Tube Volumes

CRESCIMENTO E QUALIDADE DE MUDAS DE Eucalyptus urophylla X Eucalyptus grandis EM DIFERENTES RECIPIENTES

PRODUCTION OF SEEDLINGS OF Psidium cauliflorum Landrum & Sobral

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