SELECTION FOR ALUMINUM TOLERANCE IN TROPICAL SOYBEANS

Detalhes bibliográficos
Autor(a) principal: Spehar, Carlos Roberto
Data de Publicação: 2007
Outros Autores: Souza, Luiz Augusto Copati
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/2162
Resumo: Soil acidity is a limiting factor for most of the cultivated plants in the Brazilian Savannah. Toxicity caused by aluminum (Al) is especially serious in the acid subsurface, which remains acidic after soil has been amended, by hindering root growth and causing drought susceptibility and nutritional unbalance. This research aimed at selecting soybean with increased tolerance to Al through association of hydroponics and field experiments. Crosses including savannah adapted genotypes were obtained. Seeds of contrasting individuals, selected in hydroponics at F2 generation for root growth, were obtained for progeny evaluation at F3, in the field, and at F4 in hydroponics. Grain production and total dry matter of selected progenies were superior to the parentals, in the acid soil experiment. These results were confirmed by performance in hydroponics, indicating the method may be successfully employed in breeding programs for crop adaptation to subsurface acid soil conditions. KEY-WORDS: Subsurface acidity; Glycine max; Al stress; plant breeding.
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spelling SELECTION FOR ALUMINUM TOLERANCE IN TROPICAL SOYBEANSSELEÇÃO PARA TOLERÂNCIA AO ALUMÍNIO EM SOJA TROPICALSubsurface acidityGlycine maxAl stressplant breedingAcidez sub-superficialGlycine maxestressegenótipomelhoramento de plantas Soil acidity is a limiting factor for most of the cultivated plants in the Brazilian Savannah. Toxicity caused by aluminum (Al) is especially serious in the acid subsurface, which remains acidic after soil has been amended, by hindering root growth and causing drought susceptibility and nutritional unbalance. This research aimed at selecting soybean with increased tolerance to Al through association of hydroponics and field experiments. Crosses including savannah adapted genotypes were obtained. Seeds of contrasting individuals, selected in hydroponics at F2 generation for root growth, were obtained for progeny evaluation at F3, in the field, and at F4 in hydroponics. Grain production and total dry matter of selected progenies were superior to the parentals, in the acid soil experiment. These results were confirmed by performance in hydroponics, indicating the method may be successfully employed in breeding programs for crop adaptation to subsurface acid soil conditions. KEY-WORDS: Subsurface acidity; Glycine max; Al stress; plant breeding. A acidez do solo é fator limitante para a maioria das plantas cultivadas no Cerrado Brasileiro. A toxidez causada por alumínio (Al) é especialmente séria na subsuperfície, que permanece ácida após o uso de corretivos, por impedir o crescimento radicular e causar suscetibilidade à seca e desbalanceamento nutricional. Aqui objetivou-se a seleção de genótipos de soja com maior tolerância ao Al, pela associação de experimentos em hidroponia e no campo. Cruzamentos incluindo genótipos selecionados no Cerrado foram realizados. Sementes de indivíduos contrastantes, selecionados em hidroponia na geração F2 pelo crescimento radicular, foram obtidas para avaliação de progênies em F3, no campo, e em F4, novamente em hidroponia. Rendimento de grãos e de biomassa das progênies selecionadas foram superiores aos genitores, no experimento em solo ácido. Esses resultados foram confirmados pelo desempenho em hidroponia, indicando que o método de seleção pode ser empregado com êxito em programas de melhoramento para adaptação de cultivos a condições de acidez subsuperficial do solo. PALAVRAS-CHAVE: Acidez sub-superficial; Glycine max; estresse; genótipo; melhoramento de plantas.Escola de Agronomia - Universidade Federal de Goiás2007-10-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa experimentalapplication/pdfhttps://revistas.ufg.br/pat/article/view/2162Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 36, n. 1, Jan./Apr. 2006; 1-6Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 36, n. 1, jan./abr. 2006; 1-6Pesquisa Agropecuária Tropical; v. 36, n. 1, jan./abr. 2006; 1-61983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/2162/2112Spehar, Carlos RobertoSouza, Luiz Augusto Copatiinfo:eu-repo/semantics/openAccess2009-05-26T19:33:14Zoai:ojs.revistas.ufg.br:article/2162Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:54:56.862566Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv SELECTION FOR ALUMINUM TOLERANCE IN TROPICAL SOYBEANS
SELEÇÃO PARA TOLERÂNCIA AO ALUMÍNIO EM SOJA TROPICAL
title SELECTION FOR ALUMINUM TOLERANCE IN TROPICAL SOYBEANS
spellingShingle SELECTION FOR ALUMINUM TOLERANCE IN TROPICAL SOYBEANS
Spehar, Carlos Roberto
Subsurface acidity
Glycine max
Al stress
plant breeding
Acidez sub-superficial
Glycine max
estresse
genótipo
melhoramento de plantas
title_short SELECTION FOR ALUMINUM TOLERANCE IN TROPICAL SOYBEANS
title_full SELECTION FOR ALUMINUM TOLERANCE IN TROPICAL SOYBEANS
title_fullStr SELECTION FOR ALUMINUM TOLERANCE IN TROPICAL SOYBEANS
title_full_unstemmed SELECTION FOR ALUMINUM TOLERANCE IN TROPICAL SOYBEANS
title_sort SELECTION FOR ALUMINUM TOLERANCE IN TROPICAL SOYBEANS
author Spehar, Carlos Roberto
author_facet Spehar, Carlos Roberto
Souza, Luiz Augusto Copati
author_role author
author2 Souza, Luiz Augusto Copati
author2_role author
dc.contributor.author.fl_str_mv Spehar, Carlos Roberto
Souza, Luiz Augusto Copati
dc.subject.por.fl_str_mv Subsurface acidity
Glycine max
Al stress
plant breeding
Acidez sub-superficial
Glycine max
estresse
genótipo
melhoramento de plantas
topic Subsurface acidity
Glycine max
Al stress
plant breeding
Acidez sub-superficial
Glycine max
estresse
genótipo
melhoramento de plantas
description Soil acidity is a limiting factor for most of the cultivated plants in the Brazilian Savannah. Toxicity caused by aluminum (Al) is especially serious in the acid subsurface, which remains acidic after soil has been amended, by hindering root growth and causing drought susceptibility and nutritional unbalance. This research aimed at selecting soybean with increased tolerance to Al through association of hydroponics and field experiments. Crosses including savannah adapted genotypes were obtained. Seeds of contrasting individuals, selected in hydroponics at F2 generation for root growth, were obtained for progeny evaluation at F3, in the field, and at F4 in hydroponics. Grain production and total dry matter of selected progenies were superior to the parentals, in the acid soil experiment. These results were confirmed by performance in hydroponics, indicating the method may be successfully employed in breeding programs for crop adaptation to subsurface acid soil conditions. KEY-WORDS: Subsurface acidity; Glycine max; Al stress; plant breeding.
publishDate 2007
dc.date.none.fl_str_mv 2007-10-27
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
Pesquisa experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/2162
url https://revistas.ufg.br/pat/article/view/2162
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/2162/2112
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 Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 36, n. 1, Jan./Apr. 2006; 1-6
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 36, n. 1, jan./abr. 2006; 1-6
Pesquisa Agropecuária Tropical; v. 36, n. 1, jan./abr. 2006; 1-6
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
_version_ 1799874813447110656

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