Selection possibility for more efficient nitrogen fixation in cowpea

Detalhes bibliográficos
Autor(a) principal: Barreto, Paulo Diógenes
Data de Publicação: 2014
Outros Autores: Nunes, Raimundo de Pontes
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/16284
Resumo: Several characters assumed to be related to symbiotic fixation of nitrogen were studied in progenies of 75 selections of two cowpea cultivars, Vigna unguiculata (L.) Walp, in four developmental plant stages. The two cultivars, Seridó and Pitiúba were found to be statistically different to all characters studied. The variation observed among plants in both cultivars suggests that it is possible to select lines within each cultivar for a better efficiency in nitrogen fixation through symbiotic activity, in relation to nodule weight it was possible to identify genotypes of similar behavior and to gather them into groups of the same characteristic pattern. It is suggested that nodule weight is a character of the plant and genetically controlled by it.
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spelling Selection possibility for more efficient nitrogen fixation in cowpeaPossibilidade de seleção de linhagens de caupi mais eficientes na fixação simbiótica de nitrogénionitrogen fixation; genetic control; RhizobiumVigna unguiculata (L.) Walp; fixação de nitrogênio; controle genético; RhizobiumSeveral characters assumed to be related to symbiotic fixation of nitrogen were studied in progenies of 75 selections of two cowpea cultivars, Vigna unguiculata (L.) Walp, in four developmental plant stages. The two cultivars, Seridó and Pitiúba were found to be statistically different to all characters studied. The variation observed among plants in both cultivars suggests that it is possible to select lines within each cultivar for a better efficiency in nitrogen fixation through symbiotic activity, in relation to nodule weight it was possible to identify genotypes of similar behavior and to gather them into groups of the same characteristic pattern. It is suggested that nodule weight is a character of the plant and genetically controlled by it.O comportamento de caracteres presumivelmente relacionados com a fixação simbiótica de nitrogênio foi estudado em progênies de 75 seleções de cada uma de duas cultivares de caupi, Vigna unguiculata (L.) Walp, em quatro diferentes idades da planta. As cultivares estudadas, Seridó e Pitiúba, diferiram entre si em todas as características consideradas e observou-se a existência de variação estatisticamente significativa, entre progênies e entre plantas dentro de progênies de ambas as cultivares, sugerindo a possibilidade de identificação, nessas cultivares, de linhagens ou genótipos mais eficientes com respeito à simbiose de que resulta a fixação biológica de nitrogênio. No que respeita ao peso dos nódulos, foi possível a formação de grupos de plantas de comportamento característico, o que indica que, em uma mesma variedade, podem ser identificados genótipos diferentes e que esse caráter é geneticamente controlado.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraBarreto, Paulo DiógenesNunes, Raimundo de Pontes2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16284Pesquisa Agropecuaria Brasileira; v.17, n.9, set. 1982; 1331-1339Pesquisa Agropecuária Brasileira; v.17, n.9, set. 1982; 1331-13391678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16284/10479info:eu-repo/semantics/openAccess2014-04-16T16:39:48Zoai:ojs.seer.sct.embrapa.br:article/16284Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T16:39:48Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Selection possibility for more efficient nitrogen fixation in cowpea
Possibilidade de seleção de linhagens de caupi mais eficientes na fixação simbiótica de nitrogénio
title Selection possibility for more efficient nitrogen fixation in cowpea
spellingShingle Selection possibility for more efficient nitrogen fixation in cowpea
Barreto, Paulo Diógenes
nitrogen fixation; genetic control; Rhizobium
Vigna unguiculata (L.) Walp; fixação de nitrogênio; controle genético; Rhizobium
title_short Selection possibility for more efficient nitrogen fixation in cowpea
title_full Selection possibility for more efficient nitrogen fixation in cowpea
title_fullStr Selection possibility for more efficient nitrogen fixation in cowpea
title_full_unstemmed Selection possibility for more efficient nitrogen fixation in cowpea
title_sort Selection possibility for more efficient nitrogen fixation in cowpea
author Barreto, Paulo Diógenes
author_facet Barreto, Paulo Diógenes
Nunes, Raimundo de Pontes
author_role author
author2 Nunes, Raimundo de Pontes
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Barreto, Paulo Diógenes
Nunes, Raimundo de Pontes
dc.subject.por.fl_str_mv nitrogen fixation; genetic control; Rhizobium
Vigna unguiculata (L.) Walp; fixação de nitrogênio; controle genético; Rhizobium
topic nitrogen fixation; genetic control; Rhizobium
Vigna unguiculata (L.) Walp; fixação de nitrogênio; controle genético; Rhizobium
description Several characters assumed to be related to symbiotic fixation of nitrogen were studied in progenies of 75 selections of two cowpea cultivars, Vigna unguiculata (L.) Walp, in four developmental plant stages. The two cultivars, Seridó and Pitiúba were found to be statistically different to all characters studied. The variation observed among plants in both cultivars suggests that it is possible to select lines within each cultivar for a better efficiency in nitrogen fixation through symbiotic activity, in relation to nodule weight it was possible to identify genotypes of similar behavior and to gather them into groups of the same characteristic pattern. It is suggested that nodule weight is a character of the plant and genetically controlled by it.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-16
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/16284
url https://seer.sct.embrapa.br/index.php/pab/article/view/16284
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/16284/10479
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.17, n.9, set. 1982; 1331-1339
Pesquisa Agropecuária Brasileira; v.17, n.9, set. 1982; 1331-1339
1678-3921
0100-104x
reponame:Pesquisa Agropecuária 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 Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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