The effect of shading levels on the development of yellow passion fruit seedlings (Passiflora edulis Sims f. flavicarpa Deg.) ) - DOI: 10.4025/actasciagron.v28i4.889
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/889 |
Resumo: | The effect of shading levels on the development of yellow passion fruit seedlings was studied, from May 12 to June 29 (2004), at the Universidade Estadual do Sudoeste da Bahia, in Vitória da Conquista, Bahia State, Brazil. Seedlings aged 45 days after the emergency, were cultivated and submitted to different levels of solar radiation reduction: 0%, 30%, 50% and 70%. The experimental design was in randomized blocks, with four treatments, five replications and six plants for plot. The evaluation parameters were: dry mass of roots, stems and leaves, shoot/root ratio, leaf area, specific leaf area, leaf area ratio, leaf mass ratio and nitrogen content. A trend to the accumulation of dry mass in the less shaded plants was observed. Also, there was an increase of the aerial part/root ratio in the plants under higher shade levels. The leaf area, specific leaf area and leaf area ratio were higher in the shaded plants, reflecting an adaptation of these to maximize the light absorption. The leaf mass ratio did not differ between the treatments. The total nitrogen content per unit of mass was higher in the shaded plants, while per unit of area, a decrease was observed. |
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The effect of shading levels on the development of yellow passion fruit seedlings (Passiflora edulis Sims f. flavicarpa Deg.) ) - DOI: 10.4025/actasciagron.v28i4.889Desenvolvimento de mudas de maracujazeiro (Passiflora edulis Sims f. flavicarpa Deg.) sob diferentes níveis de sombreamento - DOI: 10.4025/actasciagron.v28i4.889massa frescamassa secaárea foliarnitrogênio5.01.03.00-8 FitotecniaThe effect of shading levels on the development of yellow passion fruit seedlings was studied, from May 12 to June 29 (2004), at the Universidade Estadual do Sudoeste da Bahia, in Vitória da Conquista, Bahia State, Brazil. Seedlings aged 45 days after the emergency, were cultivated and submitted to different levels of solar radiation reduction: 0%, 30%, 50% and 70%. The experimental design was in randomized blocks, with four treatments, five replications and six plants for plot. The evaluation parameters were: dry mass of roots, stems and leaves, shoot/root ratio, leaf area, specific leaf area, leaf area ratio, leaf mass ratio and nitrogen content. A trend to the accumulation of dry mass in the less shaded plants was observed. Also, there was an increase of the aerial part/root ratio in the plants under higher shade levels. The leaf area, specific leaf area and leaf area ratio were higher in the shaded plants, reflecting an adaptation of these to maximize the light absorption. The leaf mass ratio did not differ between the treatments. The total nitrogen content per unit of mass was higher in the shaded plants, while per unit of area, a decrease was observed.Foi estudado o efeito de níveis de sombreamento sobre o desenvolvimento de mudas de maracujazeiro, no período de 12/05 a 29/06 de 2004, na Universidade Estadual do Sudoeste da Bahia, em Vitória da Conquista, Estado da Bahia. Mudas com 45 dias após a emergência foram transplantadas e submetidas a diferentes níveis de redução da radiação solar, quais sejam: 0% (pleno sol), 30%, 50% e 70%. Foi utilizado o delineamento experimental em blocos casualizados, com quatro tratamentos, cinco repetições e seis plantas úteis por parcela. Foram avaliadas as características: massa seca de raízes, caules e folhas, razão parte aérea/raiz, área foliar, área foliar específica, razão de área foliar, razão de massa foliar e teor de nitrogênio total. Foi observada tendência ao acúmulo de massa seca nas mudas menos sombreadas, sendo que houve aumento da razão parte aérea/raiz nas mudas sob maiores níveis de sombreamento. A área foliar, área foliar específica e razão de área foliar foram maiores nas plantas mais sombreadas, refletindo uma adaptação destas para maximizar a absorção de luz. A razão de massa foliar não diferiu entre os tratamentos. O teor de nitrogênio total por unidade de massa foi maior nas plantas mais sombreadas, enquanto por unidade de área, decresceu.Universidade Estadual de Maringá2008-02-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/88910.4025/actasciagron.v28i4.889Acta Scientiarum. Agronomy; Vol 28 No 4 (2006); 513-521Acta Scientiarum. Agronomy; v. 28 n. 4 (2006); 513-5211807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/889/889Silva, Maria Laura SouzaViana, Anselmo Eloy SilveiraJosé, Abel Rebouças SãoAmaral, Cláudio Lúcio FernandesMatsumoto, Sylvana NaomiPelacani, Claudinéia Reginainfo:eu-repo/semantics/openAccess2022-11-23T18:37:14Zoai:periodicos.uem.br/ojs:article/889Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:37:14Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
The effect of shading levels on the development of yellow passion fruit seedlings (Passiflora edulis Sims f. flavicarpa Deg.) ) - DOI: 10.4025/actasciagron.v28i4.889 Desenvolvimento de mudas de maracujazeiro (Passiflora edulis Sims f. flavicarpa Deg.) sob diferentes níveis de sombreamento - DOI: 10.4025/actasciagron.v28i4.889 |
title |
The effect of shading levels on the development of yellow passion fruit seedlings (Passiflora edulis Sims f. flavicarpa Deg.) ) - DOI: 10.4025/actasciagron.v28i4.889 |
spellingShingle |
The effect of shading levels on the development of yellow passion fruit seedlings (Passiflora edulis Sims f. flavicarpa Deg.) ) - DOI: 10.4025/actasciagron.v28i4.889 Silva, Maria Laura Souza massa fresca massa seca área foliar nitrogênio 5.01.03.00-8 Fitotecnia |
title_short |
The effect of shading levels on the development of yellow passion fruit seedlings (Passiflora edulis Sims f. flavicarpa Deg.) ) - DOI: 10.4025/actasciagron.v28i4.889 |
title_full |
The effect of shading levels on the development of yellow passion fruit seedlings (Passiflora edulis Sims f. flavicarpa Deg.) ) - DOI: 10.4025/actasciagron.v28i4.889 |
title_fullStr |
The effect of shading levels on the development of yellow passion fruit seedlings (Passiflora edulis Sims f. flavicarpa Deg.) ) - DOI: 10.4025/actasciagron.v28i4.889 |
title_full_unstemmed |
The effect of shading levels on the development of yellow passion fruit seedlings (Passiflora edulis Sims f. flavicarpa Deg.) ) - DOI: 10.4025/actasciagron.v28i4.889 |
title_sort |
The effect of shading levels on the development of yellow passion fruit seedlings (Passiflora edulis Sims f. flavicarpa Deg.) ) - DOI: 10.4025/actasciagron.v28i4.889 |
author |
Silva, Maria Laura Souza |
author_facet |
Silva, Maria Laura Souza Viana, Anselmo Eloy Silveira José, Abel Rebouças São Amaral, Cláudio Lúcio Fernandes Matsumoto, Sylvana Naomi Pelacani, Claudinéia Regina |
author_role |
author |
author2 |
Viana, Anselmo Eloy Silveira José, Abel Rebouças São Amaral, Cláudio Lúcio Fernandes Matsumoto, Sylvana Naomi Pelacani, Claudinéia Regina |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Silva, Maria Laura Souza Viana, Anselmo Eloy Silveira José, Abel Rebouças São Amaral, Cláudio Lúcio Fernandes Matsumoto, Sylvana Naomi Pelacani, Claudinéia Regina |
dc.subject.por.fl_str_mv |
massa fresca massa seca área foliar nitrogênio 5.01.03.00-8 Fitotecnia |
topic |
massa fresca massa seca área foliar nitrogênio 5.01.03.00-8 Fitotecnia |
description |
The effect of shading levels on the development of yellow passion fruit seedlings was studied, from May 12 to June 29 (2004), at the Universidade Estadual do Sudoeste da Bahia, in Vitória da Conquista, Bahia State, Brazil. Seedlings aged 45 days after the emergency, were cultivated and submitted to different levels of solar radiation reduction: 0%, 30%, 50% and 70%. The experimental design was in randomized blocks, with four treatments, five replications and six plants for plot. The evaluation parameters were: dry mass of roots, stems and leaves, shoot/root ratio, leaf area, specific leaf area, leaf area ratio, leaf mass ratio and nitrogen content. A trend to the accumulation of dry mass in the less shaded plants was observed. Also, there was an increase of the aerial part/root ratio in the plants under higher shade levels. The leaf area, specific leaf area and leaf area ratio were higher in the shaded plants, reflecting an adaptation of these to maximize the light absorption. The leaf mass ratio did not differ between the treatments. The total nitrogen content per unit of mass was higher in the shaded plants, while per unit of area, a decrease was observed. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-02-28 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/889 10.4025/actasciagron.v28i4.889 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/889 |
identifier_str_mv |
10.4025/actasciagron.v28i4.889 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/889/889 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 28 No 4 (2006); 513-521 Acta Scientiarum. Agronomy; v. 28 n. 4 (2006); 513-521 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
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1799305902816231424 |