Ecophysiological responses of Aniba parviflora under artificial shading

Detalhes bibliográficos
Autor(a) principal: Felsemburgh, Cristina Aledi
Data de Publicação: 2016
Outros Autores: Santos, Keilla Jeanne dos, Camargo, Plínio Barbosa de, Carmo, Janaina Braga do, Tribuzy, Edgard Siza
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Florestal Brasileira (Online)
Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/964
Resumo: In order to assess ecophysiological responses of macacaporanga seedlings (Aniba parviflora) at different levels of shading an experiment was conducted in nursery considering one-year period under rainy tropical climate. Shading levels were 30%, 50% and 70% and at full sun. It was evaluate height, diameter, number of leaves, leaf area, specific leaf area, dry mass of roots, stems, leaves , total, net assimilation rate, stomata conductance, transpiration, water use efficiency and chlorophyll content. The highest values of height, leaf area and specific leaf area et assimilation rate, stomatal conductance, transpiration, water use efficiency and chlorophylls a, b and total were obtained 70% of shading. However, diameter, number of leaves and dry mass of roots, stems, leaves and total were highest under 50% of shading. The results showed that under natural conditions, the species have better chances of regenerating under forest canopy tolerating even very low light intensities due to closed canopy that is characteristic of late secondary specie.
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spelling Ecophysiological responses of Aniba parviflora under artificial shadingRespostas ecofisiológicas de Aniba parviflora ao sombreamentoCrescimento. Níveis de sombreamento. MacacaporangaGrowthChlorophyllMacacaporangaIn order to assess ecophysiological responses of macacaporanga seedlings (Aniba parviflora) at different levels of shading an experiment was conducted in nursery considering one-year period under rainy tropical climate. Shading levels were 30%, 50% and 70% and at full sun. It was evaluate height, diameter, number of leaves, leaf area, specific leaf area, dry mass of roots, stems, leaves , total, net assimilation rate, stomata conductance, transpiration, water use efficiency and chlorophyll content. The highest values of height, leaf area and specific leaf area et assimilation rate, stomatal conductance, transpiration, water use efficiency and chlorophylls a, b and total were obtained 70% of shading. However, diameter, number of leaves and dry mass of roots, stems, leaves and total were highest under 50% of shading. The results showed that under natural conditions, the species have better chances of regenerating under forest canopy tolerating even very low light intensities due to closed canopy that is characteristic of late secondary specie.Com o objetivo de avaliar as respostas ecofisiológicas de mudas de macacaporanga (Aniba parviflora) em diferentes níveis de sombreamento foi conduzido um experimento no viveiro de mudas da Universidade Federal do Oeste do Pará, em Santarém-PA. Os níveis de sombreamento foram 30%, 50% e 70% de sombreamento e a pleno sol com 0% de sombreamento. O delineamento foi inteiramente casualizado, com quatro repetições, das quais cada uma foi composta por cinco plantas. Foram avaliados altura, diâmetro, número de folhas, área foliar, área foliar específica, massa seca da raiz, caule, folhas e total, taxa assimilatória líquida, condutância estomática, transpiração, eficiência do uso da água e teores de clorofila. Os maiores valores para altura, área foliar e área foliar específica foram obtidos sob 70% de sombreamento, no entanto, para diâmetro e número de folhas os maiores valores foram sob 50% de sombreamento. O sombreamento de 70% proporcionou os maiores valores na taxa assimilatória líquida, condutância estomática, transpiração, eficiência do uso da água, clorofilas a, b e total. O sombreamento de 50% ocasionou os maiores valores na massa seca de raiz, caule, folhas e total. O nível de sombreamento de 50% proporcionou o melhor crescimento e desenvolvimento das mudas.Embrapa Florestas2016-09-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/96410.4336/2016.pfb.36.87.964Pesquisa Florestal Brasileira; v. 36 n. 87 (2016): jul./set.; 201-210Pesquisa Florestal Brasileira; Vol. 36 No. 87 (2016): jul./set.; 201-2101983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/964/510Copyright (c) 2016 Cristina Aledi Felsemburgh, Keilla Jeanne dos Santos, Plínio Barbosa de Camargo, Janaina Braga do Carmo, Edgard Siza Tribuzyhttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessFelsemburgh, Cristina Aledi Santos, Keilla Jeanne dosCamargo, Plínio Barbosa deCarmo, Janaina Braga doTribuzy, Edgard Siza2017-04-28T14:13:12Zoai:pfb.cnpf.embrapa.br/pfb:article/964Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2017-04-28T14:13:12Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Ecophysiological responses of Aniba parviflora under artificial shading
Respostas ecofisiológicas de Aniba parviflora ao sombreamento
title Ecophysiological responses of Aniba parviflora under artificial shading
spellingShingle Ecophysiological responses of Aniba parviflora under artificial shading
Felsemburgh, Cristina Aledi
Crescimento. Níveis de sombreamento. Macacaporanga
Growth
Chlorophyll
Macacaporanga
title_short Ecophysiological responses of Aniba parviflora under artificial shading
title_full Ecophysiological responses of Aniba parviflora under artificial shading
title_fullStr Ecophysiological responses of Aniba parviflora under artificial shading
title_full_unstemmed Ecophysiological responses of Aniba parviflora under artificial shading
title_sort Ecophysiological responses of Aniba parviflora under artificial shading
author Felsemburgh, Cristina Aledi
author_facet Felsemburgh, Cristina Aledi
Santos, Keilla Jeanne dos
Camargo, Plínio Barbosa de
Carmo, Janaina Braga do
Tribuzy, Edgard Siza
author_role author
author2 Santos, Keilla Jeanne dos
Camargo, Plínio Barbosa de
Carmo, Janaina Braga do
Tribuzy, Edgard Siza
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Felsemburgh, Cristina Aledi
Santos, Keilla Jeanne dos
Camargo, Plínio Barbosa de
Carmo, Janaina Braga do
Tribuzy, Edgard Siza
dc.subject.por.fl_str_mv Crescimento. Níveis de sombreamento. Macacaporanga
Growth
Chlorophyll
Macacaporanga
topic Crescimento. Níveis de sombreamento. Macacaporanga
Growth
Chlorophyll
Macacaporanga
description In order to assess ecophysiological responses of macacaporanga seedlings (Aniba parviflora) at different levels of shading an experiment was conducted in nursery considering one-year period under rainy tropical climate. Shading levels were 30%, 50% and 70% and at full sun. It was evaluate height, diameter, number of leaves, leaf area, specific leaf area, dry mass of roots, stems, leaves , total, net assimilation rate, stomata conductance, transpiration, water use efficiency and chlorophyll content. The highest values of height, leaf area and specific leaf area et assimilation rate, stomatal conductance, transpiration, water use efficiency and chlorophylls a, b and total were obtained 70% of shading. However, diameter, number of leaves and dry mass of roots, stems, leaves and total were highest under 50% of shading. The results showed that under natural conditions, the species have better chances of regenerating under forest canopy tolerating even very low light intensities due to closed canopy that is characteristic of late secondary specie.
publishDate 2016
dc.date.none.fl_str_mv 2016-09-30
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/964
10.4336/2016.pfb.36.87.964
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/964
identifier_str_mv 10.4336/2016.pfb.36.87.964
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/964/510
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; v. 36 n. 87 (2016): jul./set.; 201-210
Pesquisa Florestal Brasileira; Vol. 36 No. 87 (2016): jul./set.; 201-210
1983-2605
1809-3647
reponame:Pesquisa Florestal Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Florestal Brasileira (Online)
collection Pesquisa Florestal Brasileira (Online)
repository.name.fl_str_mv Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br
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