Crescimento de mudas de mangue sob diferentes níveis de sombreamento na península de Ajuruteua, Bragança, Pará

Lopes, Elaine Cristina; Araujo, Erneida Coelho de; Costa, Rejane Silva; Daher, Rogério Figueiredo; Fernandes, Marcus Emanuel Barroncas

doi:10.1590/s0044-59672013000300004

Cited by 10 publications

(9 citation statements)

References 13 publications

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“…Aguiar et al (2011) obtained better results for quality index of Brazilwood seedlings (Caesalpinia echinata) in environments with 20% shade. Lopes et al (2013) verified that A. germinans seedlings presented higher DQI values obtained in full sun and 30% shading. In a 20% shade growing environment, Maranho & Paiva (2012) observed higher DQI for rosewood seedlings (Physocalymma scaberrimum).…”

Section: /10supporting

confidence: 65%

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Shading And Slow Release Fertilizer Effects On The Growth Characteristics Of Assai Seedlings (Euterpe oleracea)

et al. 2019

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The objective of this work was to evaluate the initial growth of assai seedlings (Euterpe oleraceae) in response to shading and slow release fertilizer. The experiment was conducted at Embrapa Acre in a randomized block design using a 4 × 5 factorial scheme with three replicates and 10 plants per plot. The treatments consisted of four shade environments (20%, 30%, 50% and 75%) and five levels of slow release fertilizer (0.0, 2.5, 5.0, 7.5 and 10.0 kg m-3). The following characteristics were evaluated: plant height, number of leaves, stem diameter, leaf dry mass, stem dry mass, root dry mass, total dry mass, and seedlings quality index. The growth of assai seedlings was influenced by shade environment conditions and slow release fertilizer. Shade environment with 30% or 50% and a dose of 8 kg m-3 resulted in better quality seedlings.

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Section: /10supporting

confidence: 65%

“…According to Lopes et al (2013), the ability to grow in height when shaded is an important mechanism in species adaptation with strategies of being competitors or even pioneers. It is a way to overcome the light deficiency, since these species are not able to tolerate low light intensities by adjusting their metabolic rates.…”

Section: Resultsmentioning

confidence: 99%

Shading And Slow Release Fertilizer Effects On The Growth Characteristics Of Assai Seedlings (Euterpe oleracea)

et al. 2019

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“…Ainda segundo esses autores, é grande a diversidade de respostas das plantas à luminosidade, principalmente no que se refere ao crescimento e desenvolvimento vegetativo da parte aérea. Diante da importância desse fator ambiental, vários autores estudaram a influência do sombreamento na produção de mudas de diversas espécies florestais (Câmara & Endres, 2008;Aguiar et al, 2011;Lenhard et al, 2013;Lopes et al, 2013;Pacheco et al, 2013;César et al, 2014;Santos et al, 2014). Para o nim indiano, porém, até o presente não existe informação disponível na literatura, o que torna esse tipo de estudo de grande relevância para o aprimoramento das técnicas empregadas na produção de mudas dessa espécie.…”

Section: Introductionunclassified

Desenvolvimento de Mudas de Nim Indiano sob Diferentes Níveis de Sombreamento

et al. 2015

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RESUMOEste estudo teve como objetivo avaliar o efeito de níveis de sombreamento na produção de mudas de nim indiano (Azadirachta indica), visando a obtenção de mudas com maior padrão de qualidade. Foram adotados quatro tratamentos (pleno sol, 30%, 50% e 70% de sombreamento), dispostos em delineamento inteiramente casualizado, com seis repetições. Os parâmetros avaliados, aos 100 dias, foram: altura da parte aérea, diâmetro do coleto, relação altura/diâmetro, massa fresca e seca da parte aérea, raízes e total, número de folhas e índice de qualidade de Dickson. Os dados foram submetidos à análise de variância, sendo as médias comparadas pelo teste de Duncan a 5% de significância. Mudas produzidas a pleno sol apresentaram maior padrão de qualidade, sendo observados valores mais adequados para os parâmetros diâmetro do coleto, relação altura/diâmetro, massa fresca e seca das raízes, número de folhas e índice de qualidade de Dickson.Palavras-chave: viveiros florestais, luminosidade, parâmetros morfológicos, Azadirachta indica. Development of Indian Neem Seedlings under Different Levels of Shading ABSTRACTThe purpose of this study was to evaluate the effect of levels of shading on the seedling production of Indian neem (Azadirachta indica), aiming to obtain seedlings with higher quality standard. Four treatments were adopted (full sun; 30%, 50% and 70% of shading), arranged in a completely randomized design, with six replications. The following parameters were evaluated after 100 days: height of the aerial part; root-collar diameter; height/diameter ratio; fresh and dry mass of shoots, roots and total; number of leaves; and Dickson quality index. The data were subjected to analysis of variance and the averages were compared by the Duncan test at 5% significance level. Seedlings produced under full sun showed higher standard of quality, with more suitable values observed for the following parameters: root-collar diameter, height/diameter ratio, fresh and dry mass of roots, number of leaves, and Dickson quality index.

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“…According to Schaeffer-Novelli (1995), reshaping and/ or inducing restoration through sowing or transplanting seedlings of dominant species in the area to be restored is necessary in many cases. Lopes et al (2013) analyzed the growth of seedlings in nurseries and in mangrove forests as a function of light and observed a high rate of viviparity in these two environments, which clearly indicates the phenotypic plasticity of these plants to adapt to existing environmental conditions.…”

Section: Discussionmentioning

confidence: 99%

THE RECOVERY OF A DEGRADED MANGROVE IN CEARÁ THROUGH THE PRODUCTION OF Laguncularia racemosa (L.) C.F. Gaertn. (Combretaceae) AND Avicennia sp. Stapf ex Ridl (Acanthaceae) SEEDLINGS

2016

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-The mangrove ecosystem performs several natural functions of great ecological and economic importance. This study provided procedures for the recovery of mangrove ecosystems through the characterization of vegetation and zonation patterns and evaluation of growth and survival rates of mangrove species in an experimental plantation. The study was performed in the Acaraú River estuary mangrove on the western coast of Ceará State. The characterization of vegetation was conducted with the use of multiple plots and transects replication. Plants were identified at the species level, and their heights and CBH (circumference at breast height) were measured in each plot. Seedlings of the dominant mangrove species were produced using estuarine propagules. Five mangrove species were sampled: Rhizophora mangle, Avicennia germinans, Avicennia schaueriana, Laguncularia racemosa, and Conocarpus erectus. L. racemosa was the most dominant and frequent species, followed by A. germinas. A total of 111 L. racemosa and 102 Avicennia sp seedlings of were produced. Seedlings were viable for replanting within two months. The results of the analysis of vegetation structure and production and growth of seedlings are encouraging and demonstrate that revegetation is not only possible but also successful in this significantly deforested and degraded mangrove. 378Revista Árvore, Viçosa-MG, v.40, n.3, p.377-385, 2016 PAULA, A.L.S. et al.positivos, tanto na análise da estrutura vegetal, quanto à própria produção de mudas e ao sucesso do desenvolvimento e replantio, demonstrando que, mesmo este manguezal estando bastante desmatado e degradado é sim possível o sucesso do replantio.Palavras-chave: Estrutura vegetal; Plântulas; Plantio experimental.

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Crescimento de mudas de mangue sob diferentes níveis de sombreamento na península de Ajuruteua, Bragança, Pará

Cited by 10 publications

References 13 publications

Shading And Slow Release Fertilizer Effects On The Growth Characteristics Of Assai Seedlings (Euterpe oleracea)

Shading And Slow Release Fertilizer Effects On The Growth Characteristics Of Assai Seedlings (Euterpe oleracea)

Desenvolvimento de Mudas de Nim Indiano sob Diferentes Níveis de Sombreamento

THE RECOVERY OF A DEGRADED MANGROVE IN CEARÁ THROUGH THE PRODUCTION OF Laguncularia racemosa (L.) C.F. Gaertn. (Combretaceae) AND Avicennia sp. Stapf ex Ridl (Acanthaceae) SEEDLINGS

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