Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/955171
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dc.contributor.authorARAÚJO, A. E. da S.pt_BR
dc.contributor.authorBALDANI, V. L. D.pt_BR
dc.contributor.authorGALISA, P. de S.pt_BR
dc.contributor.authorPEREIRA, J. A.pt_BR
dc.contributor.authorBALDANI, J. I.pt_BR
dc.date.accessioned2013-04-08T11:11:11Zpt_BR
dc.date.available2013-04-08T11:11:11Zpt_BR
dc.date.created2013-04-08pt_BR
dc.date.issued2013pt_BR
dc.identifier.citationApplied Soil Ecology, v. 64, p. 49-55, 2013.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/955171pt_BR
dc.descriptionThe largest numbers of the Brazilian traditional upland rice varieties are found in the Maranhão state, Northeast region of Brazil. However, no information is available on the diazotrophic bacterial population associated as well as the plant growth promoting potential when these traditional genotypes are inoculated with native strains. Here, we evaluated the response of ten traditional rice varieties to inoculation with ten diazotrophic strains, previously isolated from rice soil of this region and screened for their ability to produce indole-3-acetic acid (IAA) in vitro. The procedure for selection of the best diazotrophic strain/rice variety interaction involved three steps: gnotobiotic conditions, soil pot and field experiments. The gnotobiotic experiment showed that the Azospirillum amazonense strain AR3122 increased the biomass of the traditional varieties Cana Roxa and Cana Forte (28 and 48%, respectively) while this effect was less evident for the other combination of strains/rice varieties. The soil pot experiment showed that the combination of Burkholderia vietnamiensis strain AR 1122 and traditional variety Arroz 70 was superior to the other strains/varieties and the treatment fertilized with 100 kgNha−1. The best performance of the Burkholderia vietnamiensis strain AR1122/variety Arroz 70 was confirmed in the field experiment. There was an increase of up 10 and 29% in the grain yield in comparison to both the N fertilization and Herbaspirillum seropedicae ZAE 94 strain treatments, respectively. In contrast, the response of the commercial variety Bonanc¸ a to inoculation with strain AR1122 was much lower, suggesting that a biofertilizer inoculation program for traditional rice varieties should consider the genetic interaction between strain and rice variety. The diazotrophic B. vietmaniensis strain AR1122 was a good biofertilizer candidate for inoculation of traditional rice varieties and therefore should be used for further studies to confirm the strain-genotype effect envisaging a sustainable rice crop system mainly in the Northeast region of Brazil.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectBiofertilizerpt_BR
dc.titleResponse of traditional upland rice varieties to inoculation with selected diazotrophic bacteria isolated from rice cropped at the northeast region of Brazil.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2013-06-21T11:11:11Zpt_BR
dc.subject.thesagroBiofertilizantept_BR
dc.subject.thesagroFixação de Nitrogêniopt_BR
dc.subject.thesagroOryza Sativapt_BR
dc.subject.nalthesaurusNitrogen fixationpt_BR
riaa.ainfo.id955171pt_BR
riaa.ainfo.lastupdate2013-06-21pt_BR
dc.contributor.institutionANTONIO EDILSON DA SILVA ARAÚJO, UNIVERSIDADE FEDERAL DE RORAIMA; VERA LUCIA DIVAN BALDANI, CNPAB; PÉRICLES DE SOUZA GALISA, UFRRJ/ Embrapa Agrobiologia; JOSE ALMEIDA PEREIRA, CPAMN; JOSE IVO BALDANI, CNPAB.pt_BR
Aparece nas coleções:Artigo em periódico indexado (CPAMN)

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