Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1017076
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dc.contributor.authorALVAREZ, R. de C. F.pt_BR
dc.contributor.authorHABERMANN, G.pt_BR
dc.contributor.authorCRUSCIOL, C. A. C.pt_BR
dc.contributor.authorNASCENTE, A. S.pt_BR
dc.contributor.authorRODRIGUES, J. D.pt_BR
dc.date.accessioned2015-06-08T11:11:11Zpt_BR
dc.date.available2015-06-08T11:11:11Zpt_BR
dc.date.created2015-06-08pt_BR
dc.date.issued2015pt_BR
dc.identifier.citationBragantia, Campinas, v. 74, n. 1, p. 1-8, jan./mar. 2015.pt_BR
dc.identifier.issn1678-4499pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1017076pt_BR
dc.descriptionStudies of physiological parameters associated with crop performance and growth in different groups of upland rice (Oryza sativa L.) may support plant breeding programs. We evaluated the role of gas exchange rates and dry matter accumulation (DMA) as traits responsible for yields in a traditional (cv. 'Caiapó'), intermediate (cv. 'Primavera') and modern (cv. 'Maravilha') upland rice cultivars. Leaf gas exchange rates, DMA, leaf area index (LAI), harvest indexes (HI) and yield components were measured on these genotypes in the field, under sprinkler irrigation. Panicles per m2 and DMA at flowering (FL) and heading, as well as CO2 assimilation rates (A) were similar across these cultivars. The highest yield was found in ?Primavera?, which may be explained by (i) a two-fold higher HI compared to the other cultivars, (ii) greater rates of DMA during spikelet formation and grain-filling, as well as (iii) a slow natural decrease of A in this cultivar, at the end of the season (between FL and maturation).pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectÍndice de colheitapt_BR
dc.subjectIntercâmbio de gasespt_BR
dc.titleLeaf gas exchange and yield of three upland rice cultivars.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2015-06-08T11:11:11Zpt_BR
dc.subject.thesagroArrozpt_BR
dc.subject.thesagroOryza sativapt_BR
dc.subject.thesagroGaspt_BR
dc.subject.thesagroFisiologiapt_BR
dc.subject.nalthesaurusHarvest indexpt_BR
dc.subject.nalthesaurusGas exchangept_BR
dc.subject.nalthesaurusRicept_BR
riaa.ainfo.id1017076pt_BR
riaa.ainfo.lastupdate2015-06-08pt_BR
dc.identifier.doi10.1590/1678-4499.0322pt_BR
dc.contributor.institutionRITA DE CÁSSIA FELIX ALVAREZ, UFMS; GUSTAVO HABERMANN, UNESP; CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP; ADRIANO STEPHAN NASCENTE, CNPAF; JOÃO DOMINGOS RODRIGUES, UNESP.pt_BR
Appears in Collections:Artigo em periódico indexado (CNPAF)

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