Selection of peats inoculants with diazotrophic bacteria in two rice varieties - DOI: 10.4025/actasciagron.v32i1.732
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , |
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/732 |
Resumo: | The study consisted of a comparison of two-peat materials (Brazil and Canada) containing different C-total content. The peats were inoculated with strains of Herbaspirillum seropedicae ZAE 94, Burkholderia sp. M130, and Azospirillum brasilense Sp109, and monitored during a period of six months in relation to variation on humidity and survival of bacteria in the inoculant. The quantification of viable cells in the inoculant was measured by the Most Probable Number (MPN) method. The rice seeds were pelleted with the respective inoculants, grown in pots containing soil and maintained outside a greenhouse. The dry mass accumulation, N percent, N-total and yield were determined during the plant cycle. The humidity content varied with storage period. The survival measurement showed that only Burkholderia sp. M130 maintained the number of viable cells around 108 g-1 of peat, while there was a reduction in population of other strains. An increase of yield and total N of 13 and 19.4%, respectively in comparison to treatment fertilized with 40 kg N ha-1 was observed for variety IAC4440, inoculated with strain ZAE94. There was no difference in yield of the IR42 inoculated with either ZAE94 or M130, as compared to N control treatment. No significant difference in development of both rice varieties was observed for both peat used. The results suggest that peat can be used as a carrier for production of an inoculant based on diazotrophic bacteria, since it allowed maintenance of a bacterial population up to 108 cells g-1 peat during the storage period of up to 100 days. The results obtained encourage the practice of inoculation of non-leguminous plants. |
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Selection of peats inoculants with diazotrophic bacteria in two rice varieties - DOI: 10.4025/actasciagron.v32i1.732Seleção de inoculantes à base de turfa contendo bactérias diazotróficas em duas variedades de arroz - DOI: 10.4025/actasciagron.v32i1.732nitrogen biological fixationinoculant carriersHerbaspirillum seropedicaefixação biológica nitrogênioveículos de inoculaçãoHerbaspirillum seropedicaeAgronomiaThe study consisted of a comparison of two-peat materials (Brazil and Canada) containing different C-total content. The peats were inoculated with strains of Herbaspirillum seropedicae ZAE 94, Burkholderia sp. M130, and Azospirillum brasilense Sp109, and monitored during a period of six months in relation to variation on humidity and survival of bacteria in the inoculant. The quantification of viable cells in the inoculant was measured by the Most Probable Number (MPN) method. The rice seeds were pelleted with the respective inoculants, grown in pots containing soil and maintained outside a greenhouse. The dry mass accumulation, N percent, N-total and yield were determined during the plant cycle. The humidity content varied with storage period. The survival measurement showed that only Burkholderia sp. M130 maintained the number of viable cells around 108 g-1 of peat, while there was a reduction in population of other strains. An increase of yield and total N of 13 and 19.4%, respectively in comparison to treatment fertilized with 40 kg N ha-1 was observed for variety IAC4440, inoculated with strain ZAE94. There was no difference in yield of the IR42 inoculated with either ZAE94 or M130, as compared to N control treatment. No significant difference in development of both rice varieties was observed for both peat used. The results suggest that peat can be used as a carrier for production of an inoculant based on diazotrophic bacteria, since it allowed maintenance of a bacterial population up to 108 cells g-1 peat during the storage period of up to 100 days. The results obtained encourage the practice of inoculation of non-leguminous plants.O estudo consistiu em avaliar a sobrevivência e a eficiência das bactérias diazotróficas Herbaspirillum seropedicae, Burkholderia sp. e Azospirillum brasilense, inoculadas em dois tipos de turfas. A sobrevivência das bactérias foi determinada pelo método do Número Mais Provável (NMP), durante o armazenamento de até seis meses. A eficiência foi avaliada pela contribuição destas bactérias nos parâmetros agronômicos de acúmulo de massa seca e N-total dos grãos nas variedades de arroz IR42 e IAC4440. O experimento foi conduzido em vasos com solo, em delineamento inteiramente casualizado com três repetições, em arranjo fatorial 2 x 4. Os dados obtidos mostraram que o inoculante contendo a estirpe de Burkholderia sp. manteve o número de células viáveis em torno de 108 cel. G-1 de turfa no período testado, enquanto nos demais inoculantes este número ficou em torno de 106. Os ensaios de inoculação não mostraram diferenças significativas quanto à origem das turfas usadas como veículo sobre os parâmetros agronômicos e sobrevivência das bactérias. O tratamento que continha H. seropedicae manteve o acúmulo de massa seca e N-total dos grãos estatisticamente igual ao tratamento que recebeu 40 kg N há-1, embora tenham sido observados aumentos de 13 e 19,4% nestes parâmetros na variedade IAC4440. Os resultados mostraram-se promissores quanto à utilização da prática de inoculação na cultura do arroz.Universidade Estadual de Maringá2009-11-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/73210.4025/actasciagron.v32i1.732Acta Scientiarum. Agronomy; Vol 32 No 1 (2010); 179-185Acta Scientiarum. Agronomy; v. 32 n. 1 (2010); 179-1851807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/732/732Ferreira, Joilson SilvaBaldani, José IvoBaldani, Vera Lúcia Divaninfo:eu-repo/semantics/openAccess2022-11-23T18:37:09Zoai:periodicos.uem.br/ojs:article/732Revistahttp://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:2022-11-23T18:37:09Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Selection of peats inoculants with diazotrophic bacteria in two rice varieties - DOI: 10.4025/actasciagron.v32i1.732 Seleção de inoculantes à base de turfa contendo bactérias diazotróficas em duas variedades de arroz - DOI: 10.4025/actasciagron.v32i1.732 |
title |
Selection of peats inoculants with diazotrophic bacteria in two rice varieties - DOI: 10.4025/actasciagron.v32i1.732 |
spellingShingle |
Selection of peats inoculants with diazotrophic bacteria in two rice varieties - DOI: 10.4025/actasciagron.v32i1.732 Ferreira, Joilson Silva nitrogen biological fixation inoculant carriers Herbaspirillum seropedicae fixação biológica nitrogênio veículos de inoculação Herbaspirillum seropedicae Agronomia |
title_short |
Selection of peats inoculants with diazotrophic bacteria in two rice varieties - DOI: 10.4025/actasciagron.v32i1.732 |
title_full |
Selection of peats inoculants with diazotrophic bacteria in two rice varieties - DOI: 10.4025/actasciagron.v32i1.732 |
title_fullStr |
Selection of peats inoculants with diazotrophic bacteria in two rice varieties - DOI: 10.4025/actasciagron.v32i1.732 |
title_full_unstemmed |
Selection of peats inoculants with diazotrophic bacteria in two rice varieties - DOI: 10.4025/actasciagron.v32i1.732 |
title_sort |
Selection of peats inoculants with diazotrophic bacteria in two rice varieties - DOI: 10.4025/actasciagron.v32i1.732 |
author |
Ferreira, Joilson Silva |
author_facet |
Ferreira, Joilson Silva Baldani, José Ivo Baldani, Vera Lúcia Divan |
author_role |
author |
author2 |
Baldani, José Ivo Baldani, Vera Lúcia Divan |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Ferreira, Joilson Silva Baldani, José Ivo Baldani, Vera Lúcia Divan |
dc.subject.por.fl_str_mv |
nitrogen biological fixation inoculant carriers Herbaspirillum seropedicae fixação biológica nitrogênio veículos de inoculação Herbaspirillum seropedicae Agronomia |
topic |
nitrogen biological fixation inoculant carriers Herbaspirillum seropedicae fixação biológica nitrogênio veículos de inoculação Herbaspirillum seropedicae Agronomia |
description |
The study consisted of a comparison of two-peat materials (Brazil and Canada) containing different C-total content. The peats were inoculated with strains of Herbaspirillum seropedicae ZAE 94, Burkholderia sp. M130, and Azospirillum brasilense Sp109, and monitored during a period of six months in relation to variation on humidity and survival of bacteria in the inoculant. The quantification of viable cells in the inoculant was measured by the Most Probable Number (MPN) method. The rice seeds were pelleted with the respective inoculants, grown in pots containing soil and maintained outside a greenhouse. The dry mass accumulation, N percent, N-total and yield were determined during the plant cycle. The humidity content varied with storage period. The survival measurement showed that only Burkholderia sp. M130 maintained the number of viable cells around 108 g-1 of peat, while there was a reduction in population of other strains. An increase of yield and total N of 13 and 19.4%, respectively in comparison to treatment fertilized with 40 kg N ha-1 was observed for variety IAC4440, inoculated with strain ZAE94. There was no difference in yield of the IR42 inoculated with either ZAE94 or M130, as compared to N control treatment. No significant difference in development of both rice varieties was observed for both peat used. The results suggest that peat can be used as a carrier for production of an inoculant based on diazotrophic bacteria, since it allowed maintenance of a bacterial population up to 108 cells g-1 peat during the storage period of up to 100 days. The results obtained encourage the practice of inoculation of non-leguminous plants. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-11-04 |
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/732 10.4025/actasciagron.v32i1.732 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/732 |
identifier_str_mv |
10.4025/actasciagron.v32i1.732 |
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/732/732 |
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 32 No 1 (2010); 179-185 Acta Scientiarum. Agronomy; v. 32 n. 1 (2010); 179-185 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_ |
1799305902706130944 |