Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/663073
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dc.contributor.authorSOARES, R. M.pt_BR
dc.contributor.authorAKAMATSU, H. O.pt_BR
dc.contributor.authorYAMAOKA, Y.pt_BR
dc.contributor.authorYAMANAKA, N.pt_BR
dc.contributor.authorSUENAGA, K.pt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.created2010-04-05pt_BR
dc.date.issued2010pt_BR
dc.identifier.citationPlant Management Network, St. Paul, 2010.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/663073pt_BR
dc.descriptionThe obligate basidiomycete Phakopsora pachyrhizi is the causal agent of soybean rust that has potential to reduce the yield of soybean drastically. Soybean production in Brazil has been threatened by the rust since the pathogen was first discovered in 2001. To understand pathogenic variation of the rust populations in South America, an evaluation system for soybean rust resistance has been constructed using a set of 16 differential varieties. In this study, the evaluation system was used to investigate pathogenic variation among the P. pachyrhizi populations in Brazil. Samples of P. pachyrhizi were collected from the diseased soybeans in Brazil in the 2007-2008 and 2008-2009 soybean cultivation seasons. In the first season, two rust samples showed similar pattern of the infection types on the differential set, suggesting that the same or similar pathogen population was present in the two locations. The other samples were likely different pathogenic populations. In the second season, different patterns of the infection types were found among the samples. Comparison of the evaluation data from the two seasons demonstrated that pathogenic variation between the seasons was detected in the populations from Rio Grande do Sul and Paraná but was not remarkable in those from Rondônia. This study provides useful knowledge about P. pachyrhizi populations in Brazil to identify the resistant soybean genotypes and target effective cultivars against certain pathogen populations.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titlePathogenic variation of Phakopsora pachyrhizi populations in Brazil.pt_BR
dc.typeResumo em anais e proceedingspt_BR
dc.date.updated2018-04-17T11:11:11Zpt_BR
dc.subject.thesagroSojapt_BR
dc.subject.thesagroFerrugempt_BR
dc.subject.thesagroDoença de plantapt_BR
dc.subject.thesagroDoença fúngicapt_BR
dc.subject.nalthesaurusPlant diseases and disorderspt_BR
dc.subject.nalthesaurusSoybeanspt_BR
dc.subject.nalthesaurusRust diseasespt_BR
dc.description.notesEdição do Proceedings of the National Soybean Rust Symposium, New Orleans, 2009.pt_BR
riaa.ainfo.id663073pt_BR
riaa.ainfo.lastupdate2018-04-17 -03:00:00pt_BR
dc.contributor.institutionRAFAEL MOREIRA SOARES, CNPSo; HAJIME O. AKAMATSU, JIRCAS; YUICHI YAMAOKA, University of Tsukuba; NAOKI YAMANAKA, JIRCAS; KAZUHIRO SUENAGA, JIRCAS.pt_BR
Appears in Collections:Artigo em anais de congresso (CNPSO)

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