Co-inoculation of Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/39350 |
Resumo: | The success of the soybean crop depends on the physiological quality of seeds, which can be favored by beneficial microorganisms, however, it may be impaired by unfavorable environmental conditions. The aim of this study was to evaluate the effect of co-inoculation with Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds obtained in the 2017/2018 crop season, from a field trial involving 23 cultivars submitted to co-inoculation (in-furrow) or without coinoculation. Plants were assessed for nodulation at R1 and, after harvest at R8, seeds were assessed for concentration of proteins, mass of thousand seeds, and seed physiological quality [(Germination, emergence of seedlings in sand, and Emergence Speed Index (ESI)]. In the average of cultivars, the number of nodules per plant increased from 36.0 in the control to 44.4 nodules with co-inoculation. Increases in the concentration of proteins and in the mass of thousand seeds due to co-inoculation were 5.6% and 34.7%, respectively. Seeds originated from co-inoculated plants had higher germination rate at the first (50% vs. 45.3%) and at the final (87% vs. 79.8%) countings, in addition to higher rate of seedlings emergence in sand box (83.3% vs. 80%), and higher ESI (18.5 vs. 17.4). The benefits of coinoculation were observed in 17 of 23 cultivars (74%) for at least two of the seven assessed variables. Considering only the minimal germination of 80%, the seeds originated from 10 non-inoculated cultivars could not be used, whereas for the co-inoculated plants this number fell to four. |
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Semina. Ciências Agrárias (Online) |
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Co-inoculation of Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seedsCoinoculação de Bradyrhizobium japonicum e Azospirillum brasilense na qualidade fisiológica de sementes de sojaDiazotrophic bacteriaEmergence speed indexGerminationGlycine max L.Bactérias diazotróficasÍndice de velocidade de emergênciaGerminaçãoGlycine max L.The success of the soybean crop depends on the physiological quality of seeds, which can be favored by beneficial microorganisms, however, it may be impaired by unfavorable environmental conditions. The aim of this study was to evaluate the effect of co-inoculation with Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds obtained in the 2017/2018 crop season, from a field trial involving 23 cultivars submitted to co-inoculation (in-furrow) or without coinoculation. Plants were assessed for nodulation at R1 and, after harvest at R8, seeds were assessed for concentration of proteins, mass of thousand seeds, and seed physiological quality [(Germination, emergence of seedlings in sand, and Emergence Speed Index (ESI)]. In the average of cultivars, the number of nodules per plant increased from 36.0 in the control to 44.4 nodules with co-inoculation. Increases in the concentration of proteins and in the mass of thousand seeds due to co-inoculation were 5.6% and 34.7%, respectively. Seeds originated from co-inoculated plants had higher germination rate at the first (50% vs. 45.3%) and at the final (87% vs. 79.8%) countings, in addition to higher rate of seedlings emergence in sand box (83.3% vs. 80%), and higher ESI (18.5 vs. 17.4). The benefits of coinoculation were observed in 17 of 23 cultivars (74%) for at least two of the seven assessed variables. Considering only the minimal germination of 80%, the seeds originated from 10 non-inoculated cultivars could not be used, whereas for the co-inoculated plants this number fell to four.O sucesso da cultura da soja depende da qualidade fisiológica das sementes, a qual pode ser favorecida por microrganismos benéficos, mas prejudicada por fatores ambientais desfavoráveis. O objetivo desse estudo foi avaliar o efeito da coinoculação com Bradyrhizobium japonicum e Azospirillum brasilense na qualidade fisiológica de sementes de soja obtidas na safra 2017/2018, em ensaio de campo com 23 cultivares, submetidas à coinoculação via sulco de semeadura ou mantidas sem coinoculação. As plantas foram avaliadas quanto à nodulação em R1 e, após a colheita (R8), determinaram-se os teores de proteínas, massa de mil sementes e a qualidade fisiológica das sementes [Germinação, emergência em areia e índice de velocidade de emergência (IVE)]. Na média das cultivares, o número de nódulos aumentou de 36,9 no controle para 44,4 nódulos por planta com a coinoculação. Os aumentos nos teores de proteínas e na massa de mil sementes devido à coinoculação foram de 5,6% e 34,7%, respectivamente. As sementes das plantas coinoculadas apresentaram maior germinação na primeira contagem (50,0% vs. 45,3%) e na final (87,0% vs. 79,8%), além de maior taxa de emergência de plântulas em caixa de areia (83,3% vs. 80,0%) e maior IVE (18,5 vs. 17,4). Os benefícios da coinoculação foram observados em 17 das 23 das cultivares (74%), em pelo menos duas das sete variáveis avaliadas. Considerando apenas o critério de germinação mínima de 80%, as sementes de 10 cultivares não inoculadas não serviriam para uso, enquanto que para as coinoculadas esse número caiu para quatro.UEL2020-11-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3935010.5433/1679-0359.2020v41n6Supl2p2937Semina: Ciências Agrárias; Vol. 41 No. 6Supl2 (2020); 2937-2950Semina: Ciências Agrárias; v. 41 n. 6Supl2 (2020); 2937-29501679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/39350/28250Copyright (c) 2020 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessLibório, Paloma Helena da SilvaBárbaro-Torneli, Ivana MarinoNogueira, Marco AntonioUnêda-Trevisoli, Sandra Helena2022-10-04T16:18:01Zoai:ojs.pkp.sfu.ca:article/39350Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-04T16:18:01Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Co-inoculation of Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds Coinoculação de Bradyrhizobium japonicum e Azospirillum brasilense na qualidade fisiológica de sementes de soja |
title |
Co-inoculation of Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds |
spellingShingle |
Co-inoculation of Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds Libório, Paloma Helena da Silva Diazotrophic bacteria Emergence speed index Germination Glycine max L. Bactérias diazotróficas Índice de velocidade de emergência Germinação Glycine max L. |
title_short |
Co-inoculation of Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds |
title_full |
Co-inoculation of Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds |
title_fullStr |
Co-inoculation of Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds |
title_full_unstemmed |
Co-inoculation of Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds |
title_sort |
Co-inoculation of Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds |
author |
Libório, Paloma Helena da Silva |
author_facet |
Libório, Paloma Helena da Silva Bárbaro-Torneli, Ivana Marino Nogueira, Marco Antonio Unêda-Trevisoli, Sandra Helena |
author_role |
author |
author2 |
Bárbaro-Torneli, Ivana Marino Nogueira, Marco Antonio Unêda-Trevisoli, Sandra Helena |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Libório, Paloma Helena da Silva Bárbaro-Torneli, Ivana Marino Nogueira, Marco Antonio Unêda-Trevisoli, Sandra Helena |
dc.subject.por.fl_str_mv |
Diazotrophic bacteria Emergence speed index Germination Glycine max L. Bactérias diazotróficas Índice de velocidade de emergência Germinação Glycine max L. |
topic |
Diazotrophic bacteria Emergence speed index Germination Glycine max L. Bactérias diazotróficas Índice de velocidade de emergência Germinação Glycine max L. |
description |
The success of the soybean crop depends on the physiological quality of seeds, which can be favored by beneficial microorganisms, however, it may be impaired by unfavorable environmental conditions. The aim of this study was to evaluate the effect of co-inoculation with Bradyrhizobium japonicum and Azospirillum brasilense on the physiological quality of soybean seeds obtained in the 2017/2018 crop season, from a field trial involving 23 cultivars submitted to co-inoculation (in-furrow) or without coinoculation. Plants were assessed for nodulation at R1 and, after harvest at R8, seeds were assessed for concentration of proteins, mass of thousand seeds, and seed physiological quality [(Germination, emergence of seedlings in sand, and Emergence Speed Index (ESI)]. In the average of cultivars, the number of nodules per plant increased from 36.0 in the control to 44.4 nodules with co-inoculation. Increases in the concentration of proteins and in the mass of thousand seeds due to co-inoculation were 5.6% and 34.7%, respectively. Seeds originated from co-inoculated plants had higher germination rate at the first (50% vs. 45.3%) and at the final (87% vs. 79.8%) countings, in addition to higher rate of seedlings emergence in sand box (83.3% vs. 80%), and higher ESI (18.5 vs. 17.4). The benefits of coinoculation were observed in 17 of 23 cultivars (74%) for at least two of the seven assessed variables. Considering only the minimal germination of 80%, the seeds originated from 10 non-inoculated cultivars could not be used, whereas for the co-inoculated plants this number fell to four. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-11-06 |
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/39350 10.5433/1679-0359.2020v41n6Supl2p2937 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/39350 |
identifier_str_mv |
10.5433/1679-0359.2020v41n6Supl2p2937 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/39350/28250 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 41 No. 6Supl2 (2020); 2937-2950 Semina: Ciências Agrárias; v. 41 n. 6Supl2 (2020); 2937-2950 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306082740338688 |