Sunflower, Helianthus annuus, response to sources and levels of boron

Detalhes bibliográficos
Autor(a) principal: Marchetti, Marlene Estevão
Data de Publicação: 2008
Outros Autores: Motomya, Wagner Rogério, Fabrício, Amoacy Carvalho, Novelino, José Oscar
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/2566
Resumo: Effect of sources and levels of boron for sunflower, Helianthus annuus (Asteraceae) in a greenhouse environment is provided. The experimental design was completely randomized with two sources of boron (boric acid and borax), four doses (0.0; 1.0; 2.0 and 4.0 mg.dm-3) and four replications. Seeds were germinated in vases with 5.8 dm-3 and, after paring, two plants remained in each pot. Boron and a nutritive solution with macro and micronutrients were applied. Plants were collected at flowering, root and stem were separated to assess dry matter. After drying, boron level by azomethine H colorimeter method was determined. Dried mass yield was influenced by boron addition and dose 1.0 mg.dm-3 provided the best yield. Borax was more efficient for sunflower boron supply when source is taken into account
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spelling Sunflower, Helianthus annuus, response to sources and levels of boronResposta do girassol, Helianthus annuus, a fontes e níveis de boroazometina Hácido bóricobórax5.00.00.00-4 Ciências AgráriasEffect of sources and levels of boron for sunflower, Helianthus annuus (Asteraceae) in a greenhouse environment is provided. The experimental design was completely randomized with two sources of boron (boric acid and borax), four doses (0.0; 1.0; 2.0 and 4.0 mg.dm-3) and four replications. Seeds were germinated in vases with 5.8 dm-3 and, after paring, two plants remained in each pot. Boron and a nutritive solution with macro and micronutrients were applied. Plants were collected at flowering, root and stem were separated to assess dry matter. After drying, boron level by azomethine H colorimeter method was determined. Dried mass yield was influenced by boron addition and dose 1.0 mg.dm-3 provided the best yield. Borax was more efficient for sunflower boron supply when source is taken into accountObjetivou-se com este trabalho, estudar, em casa de vegetação, o efeito de fontes e níveis de boro (B) para o girassol, Helianthus annuus (Asteraceae). O delineamento experimental foi o inteiramente casualizado, com duas fontes de boro (ácido bórico e bórax) e três níveis (1,0; 2,0 e 4,0 mg dm-3 de B), com quatro repetições. As sementes foram germinadas em vasos contendo 5,8 dm-3 de areia lavada, cultivando-se, após o desbaste, duas plantas por vaso, ocasião em que foi aplicado o boro e uma solução nutritiva contendo macro e micronutrientes. No início do florescimento, colheram-se as plantas, com separação de raiz e caule, para a determinação de massas secas. Após a secagem em estufa, determinou-se o teor de B pelo método colorimétrico da azometina H. Constatou-se que o maior rendimento de massa seca foi alcançado com a adição de 1,0 mg.dm-3 de B. Em relação à fonte, o bórax foi mais eficiente no suprimento de B para o girassolUniversidade Estadual de Maringá2008-05-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/256610.4025/actasciagron.v23i0.2566Acta Scientiarum. Agronomy; Vol 23 (2001); 1107-1110Acta Scientiarum. Agronomy; v. 23 (2001); 1107-11101807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2566/2052Marchetti, Marlene EstevãoMotomya, Wagner RogérioFabrício, Amoacy CarvalhoNovelino, José Oscarinfo:eu-repo/semantics/openAccess2022-11-23T18:37:50Zoai:periodicos.uem.br/ojs:article/2566Revistahttp://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:2022-11-23T18:37:50Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Sunflower, Helianthus annuus, response to sources and levels of boron
Resposta do girassol, Helianthus annuus, a fontes e níveis de boro
title Sunflower, Helianthus annuus, response to sources and levels of boron
spellingShingle Sunflower, Helianthus annuus, response to sources and levels of boron
Marchetti, Marlene Estevão
azometina H
ácido bórico
bórax
5.00.00.00-4 Ciências Agrárias
title_short Sunflower, Helianthus annuus, response to sources and levels of boron
title_full Sunflower, Helianthus annuus, response to sources and levels of boron
title_fullStr Sunflower, Helianthus annuus, response to sources and levels of boron
title_full_unstemmed Sunflower, Helianthus annuus, response to sources and levels of boron
title_sort Sunflower, Helianthus annuus, response to sources and levels of boron
author Marchetti, Marlene Estevão
author_facet Marchetti, Marlene Estevão
Motomya, Wagner Rogério
Fabrício, Amoacy Carvalho
Novelino, José Oscar
author_role author
author2 Motomya, Wagner Rogério
Fabrício, Amoacy Carvalho
Novelino, José Oscar
author2_role author
author
author
dc.contributor.author.fl_str_mv Marchetti, Marlene Estevão
Motomya, Wagner Rogério
Fabrício, Amoacy Carvalho
Novelino, José Oscar
dc.subject.por.fl_str_mv azometina H
ácido bórico
bórax
5.00.00.00-4 Ciências Agrárias
topic azometina H
ácido bórico
bórax
5.00.00.00-4 Ciências Agrárias
description Effect of sources and levels of boron for sunflower, Helianthus annuus (Asteraceae) in a greenhouse environment is provided. The experimental design was completely randomized with two sources of boron (boric acid and borax), four doses (0.0; 1.0; 2.0 and 4.0 mg.dm-3) and four replications. Seeds were germinated in vases with 5.8 dm-3 and, after paring, two plants remained in each pot. Boron and a nutritive solution with macro and micronutrients were applied. Plants were collected at flowering, root and stem were separated to assess dry matter. After drying, boron level by azomethine H colorimeter method was determined. Dried mass yield was influenced by boron addition and dose 1.0 mg.dm-3 provided the best yield. Borax was more efficient for sunflower boron supply when source is taken into account
publishDate 2008
dc.date.none.fl_str_mv 2008-05-09
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/2566
10.4025/actasciagron.v23i0.2566
url http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2566
identifier_str_mv 10.4025/actasciagron.v23i0.2566
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/2566/2052
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 23 (2001); 1107-1110
Acta Scientiarum. Agronomy; v. 23 (2001); 1107-1110
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
_version_ 1799305905763778560

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