The specific leaf area of forest species subjected to different degrees of shading did not differ when detached and full leaflets were compared
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36418 |
Resumo: | Studies of forest species under different environmental conditions are essential for enhancing our understanding of plant-environment relationships. Different light conditions interfere with the production of seedlings within forests, and this interference can be verified by assessing leaf area. However, several species have leaf compound that often contain numerous leaflets, which makes the direct measurement of leaf area difficult. This leads researchers to question whether these types of leaves should be separated for analysis or measured whole. Thus, the aim of this study was to analyse specific leaf area in whole leaves and detached leaflets of six forest species subjected to different levels of shading. The forest species assessed all produced compound leaves and included Schinus terebinthifolius Raddi (aroeira), Schinopsis brasiliensis Engl. (braúna), Dalbergia nigra (Vell.) Fr. All. ex Benth. (jacaranda-da-bahia), Chorisia speciosa A. St.-Hil (paineira), Caesalpinia peltophoroides Benth (sibipiruna) and Plathymenia reticulata Benth (vinhático). Each species was subjected to six different degrees of shading: 0% (full sun); 20; 40; 60; 80 and 90%. Sombrite netting was used to shade plants. The analysis of the specific leaf area was performed using two different methods, which included the analysis of separate leaflets and whole leaves. To analyse leaflet area,50 leaflets per plant were assessed three times, and six plants per treatment were assessed. To assess whole leaves, data were obtained from the whole leaves of six plants per treatment. This process was repeated for all aforementioned species. Data obtained from both analysis methods indicated that all species assessed were similarly affected by shade, and leaf area varied according to the level of shading. This similarity of data demonstrates that, for these species, it is not necessary to use complex methods to obtain specific leaf area measurements. Thus, determining specific leaf by measuring the entire leaf provides results that did not statistically differ from those obtained by measuring individual leaflets. |
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Semina. Ciências Agrárias (Online) |
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The specific leaf area of forest species subjected to different degrees of shading did not differ when detached and full leaflets were comparedFolhas compostas de espécies florestais apresentam a mesma área foliar específica com folíolos destacados ou com folhas completas sob sombreamentoAtlantic forestCompound leafEcophysiologyGrowthReforestation.CrescimentoEcofisiologiaFolha CompostaMata AtlânticaReflorestamento.Studies of forest species under different environmental conditions are essential for enhancing our understanding of plant-environment relationships. Different light conditions interfere with the production of seedlings within forests, and this interference can be verified by assessing leaf area. However, several species have leaf compound that often contain numerous leaflets, which makes the direct measurement of leaf area difficult. This leads researchers to question whether these types of leaves should be separated for analysis or measured whole. Thus, the aim of this study was to analyse specific leaf area in whole leaves and detached leaflets of six forest species subjected to different levels of shading. The forest species assessed all produced compound leaves and included Schinus terebinthifolius Raddi (aroeira), Schinopsis brasiliensis Engl. (braúna), Dalbergia nigra (Vell.) Fr. All. ex Benth. (jacaranda-da-bahia), Chorisia speciosa A. St.-Hil (paineira), Caesalpinia peltophoroides Benth (sibipiruna) and Plathymenia reticulata Benth (vinhático). Each species was subjected to six different degrees of shading: 0% (full sun); 20; 40; 60; 80 and 90%. Sombrite netting was used to shade plants. The analysis of the specific leaf area was performed using two different methods, which included the analysis of separate leaflets and whole leaves. To analyse leaflet area,50 leaflets per plant were assessed three times, and six plants per treatment were assessed. To assess whole leaves, data were obtained from the whole leaves of six plants per treatment. This process was repeated for all aforementioned species. Data obtained from both analysis methods indicated that all species assessed were similarly affected by shade, and leaf area varied according to the level of shading. This similarity of data demonstrates that, for these species, it is not necessary to use complex methods to obtain specific leaf area measurements. Thus, determining specific leaf by measuring the entire leaf provides results that did not statistically differ from those obtained by measuring individual leaflets.Estudos com espécies florestais, em diferentes condições ambientais são essenciais para o entendimento da relação planta-ambiente. Diferentes condições de luminosidade podem interferir na produção de mudas florestais e o reflexo dessa interferência pode ser verificado pela análise da área foliar. No entanto, muitas espécies apresentam folhas compostas, sendo muitas vezes com inúmeros folíolos, o que dificulta as análises com mensuração direta da área foliar, proporcionando dúvidas durante a análise, se devem ser separados para análise ou mensurados com a folha inteira. Assim, o objetivo desse estudo foi analisar a área foliar específica em folhas inteiras e folíolos destacados de folhas compostas de seis espécies florestais submetidas à diferentes níveis de sombreamento. As espécies florestais utilizadas foram Schinus terebinthifolius Raddi (aroeira), Schinopsis brasiliensis Engl. (braúna), Dalbergia nigra (Vell.) Fr. All. ex Benth. (jacarandá-da-bahia), Chorisia speciosa A.St.-Hil (paineira), Caesalpinia peltophoroides Benth (sibipiruna) e Plathymenia reticulata Benth (vinhático), todas com folhas compostas. Cada espécie foi submetida a seis tratamentos de sombreamento: 0% (pleno sol); 20; 40; 60; 80 e 90%, com a utilização de “sombrites” para os tratamentos sombreados. A análise da área foliar específica foi realizada de duas maneiras: folíolos separados e folha inteira. Para a análise dos folíolos esses foram obtidos de três medidas (repetições) de 50 folíolos por planta, realizada em seis plantas por tratamento. Para a análise da folha inteira os dados foram obtidos de folhas inteiras de seis plantas por tratamento. Esse processo se repetiu em todas as espécies supramencionadas. Para todas as espécies, os dados indicaram um padrão de resposta semelhante em ambos os métodos de análise, variando de acordo com os níveis de sombreamento. Essa similaridade dos dados demonstra que, para essas espécies, não é necessário a utilização de métodos muito complexos para a obtenção da área foliar específica. Assim, a obtenção da área foliar específica utilizando a folha inteira fornece resultados estatisticamente iguais em relação àquela obtida utilizando somente folíolos.UEL2020-08-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionmétodoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3641810.5433/1679-0359.2020v41n5supl1p1837Semina: Ciências Agrárias; Vol. 41 No. 5supl1 (2020); 1837-1848Semina: Ciências Agrárias; v. 41 n. 5supl1 (2020); 1837-18481679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36418/28133Copyright (c) 2020 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessGuimarães, Jacqueline LuciaHüther, Cristina MollAlmeida, Ramonn Diego Barros deNogueira, Lilian ThurlerCarvalho, Luiza Ferreira deBorella, JuniorMachado, Thelma de BarrosPereira, Carlos Rodrigues2022-10-07T12:31:10Zoai:ojs.pkp.sfu.ca:article/36418Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-07T12:31:10Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
The specific leaf area of forest species subjected to different degrees of shading did not differ when detached and full leaflets were compared Folhas compostas de espécies florestais apresentam a mesma área foliar específica com folíolos destacados ou com folhas completas sob sombreamento |
title |
The specific leaf area of forest species subjected to different degrees of shading did not differ when detached and full leaflets were compared |
spellingShingle |
The specific leaf area of forest species subjected to different degrees of shading did not differ when detached and full leaflets were compared Guimarães, Jacqueline Lucia Atlantic forest Compound leaf Ecophysiology Growth Reforestation. Crescimento Ecofisiologia Folha Composta Mata Atlântica Reflorestamento. |
title_short |
The specific leaf area of forest species subjected to different degrees of shading did not differ when detached and full leaflets were compared |
title_full |
The specific leaf area of forest species subjected to different degrees of shading did not differ when detached and full leaflets were compared |
title_fullStr |
The specific leaf area of forest species subjected to different degrees of shading did not differ when detached and full leaflets were compared |
title_full_unstemmed |
The specific leaf area of forest species subjected to different degrees of shading did not differ when detached and full leaflets were compared |
title_sort |
The specific leaf area of forest species subjected to different degrees of shading did not differ when detached and full leaflets were compared |
author |
Guimarães, Jacqueline Lucia |
author_facet |
Guimarães, Jacqueline Lucia Hüther, Cristina Moll Almeida, Ramonn Diego Barros de Nogueira, Lilian Thurler Carvalho, Luiza Ferreira de Borella, Junior Machado, Thelma de Barros Pereira, Carlos Rodrigues |
author_role |
author |
author2 |
Hüther, Cristina Moll Almeida, Ramonn Diego Barros de Nogueira, Lilian Thurler Carvalho, Luiza Ferreira de Borella, Junior Machado, Thelma de Barros Pereira, Carlos Rodrigues |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Guimarães, Jacqueline Lucia Hüther, Cristina Moll Almeida, Ramonn Diego Barros de Nogueira, Lilian Thurler Carvalho, Luiza Ferreira de Borella, Junior Machado, Thelma de Barros Pereira, Carlos Rodrigues |
dc.subject.por.fl_str_mv |
Atlantic forest Compound leaf Ecophysiology Growth Reforestation. Crescimento Ecofisiologia Folha Composta Mata Atlântica Reflorestamento. |
topic |
Atlantic forest Compound leaf Ecophysiology Growth Reforestation. Crescimento Ecofisiologia Folha Composta Mata Atlântica Reflorestamento. |
description |
Studies of forest species under different environmental conditions are essential for enhancing our understanding of plant-environment relationships. Different light conditions interfere with the production of seedlings within forests, and this interference can be verified by assessing leaf area. However, several species have leaf compound that often contain numerous leaflets, which makes the direct measurement of leaf area difficult. This leads researchers to question whether these types of leaves should be separated for analysis or measured whole. Thus, the aim of this study was to analyse specific leaf area in whole leaves and detached leaflets of six forest species subjected to different levels of shading. The forest species assessed all produced compound leaves and included Schinus terebinthifolius Raddi (aroeira), Schinopsis brasiliensis Engl. (braúna), Dalbergia nigra (Vell.) Fr. All. ex Benth. (jacaranda-da-bahia), Chorisia speciosa A. St.-Hil (paineira), Caesalpinia peltophoroides Benth (sibipiruna) and Plathymenia reticulata Benth (vinhático). Each species was subjected to six different degrees of shading: 0% (full sun); 20; 40; 60; 80 and 90%. Sombrite netting was used to shade plants. The analysis of the specific leaf area was performed using two different methods, which included the analysis of separate leaflets and whole leaves. To analyse leaflet area,50 leaflets per plant were assessed three times, and six plants per treatment were assessed. To assess whole leaves, data were obtained from the whole leaves of six plants per treatment. This process was repeated for all aforementioned species. Data obtained from both analysis methods indicated that all species assessed were similarly affected by shade, and leaf area varied according to the level of shading. This similarity of data demonstrates that, for these species, it is not necessary to use complex methods to obtain specific leaf area measurements. Thus, determining specific leaf by measuring the entire leaf provides results that did not statistically differ from those obtained by measuring individual leaflets. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-08-07 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion método |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36418 10.5433/1679-0359.2020v41n5supl1p1837 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36418 |
identifier_str_mv |
10.5433/1679-0359.2020v41n5supl1p1837 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/36418/28133 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 41 No. 5supl1 (2020); 1837-1848 Semina: Ciências Agrárias; v. 41 n. 5supl1 (2020); 1837-1848 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306081534476288 |