Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/941332
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dc.contributor.authorALVAREZ, R. de C. F.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.contributor.authorHABERMANN, G.pt_BR
dc.date.accessioned2012-12-05T11:11:11Zpt_BR
dc.date.available2012-12-05T11:11:11Zpt_BR
dc.date.created2012-12-05pt_BR
dc.date.issued2012pt_BR
dc.identifier.citationPesquisa Agropecuária Brasileira, v. 47, n. 10, p. 1455-1461, out. 2012.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/941332pt_BR
dc.descriptionThe objective of this work was to evaluate gas exchange rates, plant height, yield components, and productivity of upland rice, as affected by type and application time of plant growth regulators. A randomized block design, in a 4x2 factorial arrangement, with four replicates was used. Treatments consisted of three growth regulators (mepiquat chloride, trinexapac.ethyl, and paclobutrazol), besides a control treatment applied at two different phenological stages: early tillering or panicle primordial differentiation. The experiment was performed under sprinkler.irrigated field conditions. Net CO2 assimilation, stomatal conductance, plant transpiration, and water.use efficiency were measured four times in Primavera upland rice cultivar, between booting and milky grain phenophases. Gas exchange rates were neither influenced by growth regulators nor by application time. There was, however, interaction between these factors on the other variables. Application of trinexapac.ethyl at both tillering and differentiation stages reduced plant height and negatively affected yield components and rice productivity. However, paclobutrazol and mepiquat chloride applied at tillering, reduced plant height without affecting rice yield. Mepiquat chloride acted as a growth stimulator when applied at the differentiation stage, and significantly increased plant height, panicle number, and grain yield of upland rice.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectCondutância estomáticapt_BR
dc.subjectEstatura da plantapt_BR
dc.titleGas exchange rates, plant height, yield components, and productivity of upland rice as affected by plant regulators.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2012-12-05T11:11:11Zpt_BR
dc.subject.thesagroArrozpt_BR
dc.subject.thesagroOryza sativapt_BR
dc.subject.thesagroTranspiração vegetalpt_BR
dc.subject.thesagroFotossíntesept_BR
dc.subject.thesagroGaspt_BR
riaa.ainfo.id941332pt_BR
riaa.ainfo.lastupdate2012-12-05pt_BR
dc.contributor.institutionRITA DE CÁSSIA FÉLIX ALVAREZ, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP, Botucatu-SP; ADRIANO STEPHAN NASCENTE, CNPAF; JOÃO DOMINGOS RODRIGUES, UNESP, Botucatu-SP; GUSTAVO HABERMANN, UNESP, Rio Claro-SP.pt_BR
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