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dc.provenanceComisión de Investigaciones Científicas-
dc.contributorBeltrano, José-
dc.contributorRonco, Marta-
dc.contributorBarreiro, Roberto-
dc.contributorMontaldi, Edgardo-
dc.creatorBeltrano, José-
dc.creatorRonco, Marta-
dc.creatorBarreiro, Roberto-
dc.creatorMontaldi, Edgardo-
dc.date1999-07-
dc.date.accessioned2019-04-29T16:03:03Z-
dc.date.available2019-04-29T16:03:03Z-
dc.date.issued1999-07-
dc.identifierhttp://digital.cic.gba.gob.ar/handle/11746/3843-
dc.identifierDocumento completo-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/307905-
dc.description<i>Paspalum vaginatum</i> Schwartz plants were grown under greenhouse conditions in a continuous-flow hydroponic culture, containing NO-<SUB>3</SUB> or NH+<SUB>4</SUB> or NH<SUB>4</SUB>NO<SUB>3</SUB> as nitrogen source. After 30 days, the size of aerial biomass and root system decreased significantly when plants were supplied with NH+<SUB>4</SUB> as exclusive nitrogen source. Compared to NO-<SUB>3</SUB> treatment, reducing and non-reducing sugars were decreasing together with a significant increase in amino acids content. NH+<SUB>4</SUB>-nutrition caused tillers to grow toward an orthogravitropic position (average angle of 68° with respect to the horizontal), and with NO-<SUB>3</SUB>-nutrition, tillers tended to become diagravitropic (average angle of 23°). With NH<SUB>4</SUB>NO<SUB>3</SUB> all the parameters measured had values in between those of the other two sources. Thus, the morphologic differences among plants growing in NO-<SUB>3</SUB> or NH+<SUB>4</SUB> nutrition confirm the hypothesis that nitrogen source determines the growth habit of tillers in P. vaginatum by modulating the endogenous levels of reducing-non-reducing sugars.-
dc.formatapplication/pdf-
dc.formatp. 1159-1166-
dc.languageeng-
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.rightsAttribution 4.0 International (BY 4.0)-
dc.sourcereponame:CIC Digital (CICBA)-
dc.sourceinstname:Comisión de Investigaciones Científicas de la Provincia de Buenos Aires-
dc.sourceinstacron:CICBA-
dc.source.urihttp://digital.cic.gba.gob.ar/handle/11746/3843-
dc.source.uriDocumento completo-
dc.subjectCiencias de las Plantas, Botánica-
dc.titlePlant architecture of <i>Paspalum vaginatum</i> schwartz modified by nitrate and ammonium nutrition-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
Aparece en las colecciones: Comisión de Investigaciones Científicas de la Prov. de Buenos Aires

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