Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/979298
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dc.contributor.authorFRANZINI, V. I.por
dc.contributor.authorMENDES, F. L.por
dc.contributor.authorMURAOKA, T.por
dc.contributor.authorTREVISAM, A. R.por
dc.contributor.authorADU-GYAMFI, J. J.por
dc.contributor.otherVINICIUS IDE FRANZINI, CPATU; CPATU; CENA/USP; CENA/USP; International Atomic Energy Agency.por
dc.date.accessioned2014-02-10T11:11:11Zpor
dc.date.available2014-02-10T11:11:11Zpor
dc.date.created2014-02-10por
dc.date.issued2013por
dc.identifier.other49198por
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/979298por
dc.descriptionCommon bean (Phaseolus vulgaris L.) represents the main source of protein for the Brazilian and other Latin-American populations. Unlike soybean, which is very efficient in fixing atmospheric N2 symbiotically, common bean does not dispense with the need for N fertilizer application, as the biologically fixed N (BNF) seems incapable to supplement the total N required by the crop. A experiment under controlled conditions was conducted in Piracicaba, Brazil, to assess N2 fixation of 25 genotypes of common bean (Phaseolus vulgaris L.). BNF was measured by 15N isotope dilution using a non-N2 fixing bean genotype as a reference crop. The common bean genotypes were grown in low (2.2 mg N kg-1 soil) or high N content soil (200 mg N kg-1 soil), through N fertilizer application, as urea-15N (31.20 and 1.4 atom % 15N, respectively). The bean seeds were inoculated with Rhizobium tropici CIAT 899 strain and the plants were harvested at grain maturity stage. The contribution of BNF was on average 75% of total plant N content, and there were differences in N fixing capacity among the bean genotypes. The most efficient genotypes were Horizonte, Roxo 90, Grafite, Aporé and Vereda, when grown in high N soil. None of the genotypes grown in low N soil was efficient in producing grains compared to those grown in high N soil, and therefore the BNF was not able to supply the total N demand of the bean crop.por
dc.description.uribitstream/item/96865/1/p299.pdfpor
dc.languageenpor
dc.language.isoengeng
dc.publisherIn: OPTIMIZING productivity of food crop genotypes in low nutrient soils. Vienna: FAO: IAEA, 2013.por
dc.relation.ispartofEmbrapa Amazônia Oriental - Capítulo em livro científico (ALICE)por
dc.relation.ispartofseries(IAEA Tecdoc, 1721).por
dc.rightsopenAccesspor
dc.titleBiological nitrogen fixation efficiency in brazilian common bean genotypes as measured by 15N methodology.por
dc.typeCapítulo em livro científico (ALICE)por
dc.date.updated2017-05-31T11:11:11Zpor
dc.subject.thesagroFeijãopor
dc.subject.thesagroGenótipopor
dc.subject.thesagroNitrogênio.por
dc.format.extent2p. 299-309.por
dc.ainfo.id979298por
dc.ainfo.lastupdate2017-05-31por
Appears in Collections:Capítulo em livro científico (CPATU)

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