Field evaluation of the symbiotic fixation abilities among Rhizobium phaseoli strains

Detalhes bibliográficos
Autor(a) principal: Salto, S.M.T.
Data de Publicação: 2014
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/15977
Resumo: Continuing the Programme of Field Inoculation with Rhizobium phaseoli, started in 1978, two experiments were carried out in TRE soil, the selection was based on the increase of weight and/or total N in the seeds and in the infection percentage by ten selected strains. In both soils, a significant increase in the nodulation of inoculated plants was observed. Probably due to the presence of a high N content in the first soil (TRE-1), no significant differences were observed in the plant growth due to inoculation. But increases up to 48% in the yield and up to 23% in the total-N of the grains were obtained in plots inoculated with the strains CIAT-903 and CIAT-640, estimating contributions of both strains, respectively 24.2 and 27.8 kg/ha of N from N2 fixation. In the second soil (TRE-2), although the evident increases in the vegetative growth of plants inoculated with CIAT-632, CIAT-676 and CIAT-903, a significant increase of 47% in the grain yield was obtained only when the bean was inoculated with CIAT-903, but contributed only with 2.86 kg/ha of fixed N.
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spelling Field evaluation of the symbiotic fixation abilities among Rhizobium phaseoli strainsAvaliação em campo da capacidade de fixação simbiótica de estirpes de Rhizobium phaseolifield inoculation; grain yieldinoculação em campo/rendimentoContinuing the Programme of Field Inoculation with Rhizobium phaseoli, started in 1978, two experiments were carried out in TRE soil, the selection was based on the increase of weight and/or total N in the seeds and in the infection percentage by ten selected strains. In both soils, a significant increase in the nodulation of inoculated plants was observed. Probably due to the presence of a high N content in the first soil (TRE-1), no significant differences were observed in the plant growth due to inoculation. But increases up to 48% in the yield and up to 23% in the total-N of the grains were obtained in plots inoculated with the strains CIAT-903 and CIAT-640, estimating contributions of both strains, respectively 24.2 and 27.8 kg/ha of N from N2 fixation. In the second soil (TRE-2), although the evident increases in the vegetative growth of plants inoculated with CIAT-632, CIAT-676 and CIAT-903, a significant increase of 47% in the grain yield was obtained only when the bean was inoculated with CIAT-903, but contributed only with 2.86 kg/ha of fixed N.Em continuação ao Programa de Seleção de Estirpes de Rhizobium phaseoli em campo, iniciado em 1978, foram realizados dois experimentos em solos TRE, usando dez estirpes selecionadas de Rhizobium phaseoli. A seleção baseou-se no aumento do peso e/ou do teor de N da semente e na percentagem de infecção na planta pela estirpe introduzida. Em ambos os solos, foram obtidos aumentos significativos na nodulação em plantas inoculadas. Devido ao alto teor de N já existente no primeiro solo TRE (Estação Experimental Areão), não foram observadas diferenças significativas no desenvolvimento das plantas devidas à inoculação. Mesmo assim, aumentos de 43 a 48% no rendimento de 20-23% no teor de N dos grãos foram obtidos nos tratamentos inoculados com as estirpes CIAT-903 e CIAT-640, estimando-se, respectivamente para ambos, contribuições de 24,2 e 27,8 kg/ha de N através da fixação de N2. No segundo solo TRE (Estação Experimental de Piracicaba), apesar do evidente aumento no desenvolvimento vegetativo das plantas inoculadas com as estirpes CIAT-632, CIAT-676 e CIAT-903, somente foi obtido aumento significativo de 47% no rendimento de grãos quando se inoculou o feijão com a estirpe CIAT-903, que contribuiu somente com 2,86 kg/ha de N fixado.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSalto, S.M.T.2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15977Pesquisa Agropecuaria Brasileira; v.17, n.7, jul. 1982; 999-1006Pesquisa Agropecuária Brasileira; v.17, n.7, jul. 1982; 999-10061678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15977/10097info:eu-repo/semantics/openAccess2014-04-16T16:21:36Zoai:ojs.seer.sct.embrapa.br:article/15977Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T16:21:36Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Field evaluation of the symbiotic fixation abilities among Rhizobium phaseoli strains
Avaliação em campo da capacidade de fixação simbiótica de estirpes de Rhizobium phaseoli
title Field evaluation of the symbiotic fixation abilities among Rhizobium phaseoli strains
spellingShingle Field evaluation of the symbiotic fixation abilities among Rhizobium phaseoli strains
Salto, S.M.T.
field inoculation; grain yield
inoculação em campo/rendimento
title_short Field evaluation of the symbiotic fixation abilities among Rhizobium phaseoli strains
title_full Field evaluation of the symbiotic fixation abilities among Rhizobium phaseoli strains
title_fullStr Field evaluation of the symbiotic fixation abilities among Rhizobium phaseoli strains
title_full_unstemmed Field evaluation of the symbiotic fixation abilities among Rhizobium phaseoli strains
title_sort Field evaluation of the symbiotic fixation abilities among Rhizobium phaseoli strains
author Salto, S.M.T.
author_facet Salto, S.M.T.
author_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Salto, S.M.T.
dc.subject.por.fl_str_mv field inoculation; grain yield
inoculação em campo/rendimento
topic field inoculation; grain yield
inoculação em campo/rendimento
description Continuing the Programme of Field Inoculation with Rhizobium phaseoli, started in 1978, two experiments were carried out in TRE soil, the selection was based on the increase of weight and/or total N in the seeds and in the infection percentage by ten selected strains. In both soils, a significant increase in the nodulation of inoculated plants was observed. Probably due to the presence of a high N content in the first soil (TRE-1), no significant differences were observed in the plant growth due to inoculation. But increases up to 48% in the yield and up to 23% in the total-N of the grains were obtained in plots inoculated with the strains CIAT-903 and CIAT-640, estimating contributions of both strains, respectively 24.2 and 27.8 kg/ha of N from N2 fixation. In the second soil (TRE-2), although the evident increases in the vegetative growth of plants inoculated with CIAT-632, CIAT-676 and CIAT-903, a significant increase of 47% in the grain yield was obtained only when the bean was inoculated with CIAT-903, but contributed only with 2.86 kg/ha of fixed N.
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/15977
url https://seer.sct.embrapa.br/index.php/pab/article/view/15977
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/15977/10097
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.7, jul. 1982; 999-1006
Pesquisa Agropecuária Brasileira; v.17, n.7, jul. 1982; 999-1006
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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