Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1042749
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dc.contributor.authorGUIMARÃES, C. M.pt_BR
dc.contributor.authorSTONE, L. F.pt_BR
dc.contributor.authorSILVA, A. C. de L.pt_BR
dc.date.accessioned2016-04-06T11:11:11Zpt_BR
dc.date.available2016-04-06T11:11:11Zpt_BR
dc.date.created2016-04-06pt_BR
dc.date.issued2016pt_BR
dc.identifier.citationRevista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 20, n. 5, p. 441-446. 2016.pt_BR
dc.identifier.issn1807-1929pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1042749pt_BR
dc.descriptionTo achieve an accurate phenotyping for drought tolerance, it is important to control water stress levels and timing. This study aimed to determine water use by upland rice plants during periods of irrigation withholding and its relationship with grain yield in order to increase the efficiency of this phenotyping. Two experiments were carried out in a randomized block design in which six water treatments (irrigation withholding for periods of 2, 4, 6, 8, 10 and 12 days) were compared, with four replicates. In the first experiment, treatments were applied at the R3 stage (panicle exsertion) and, in the second, at the R5 stage (beginning of grain filling). The amount of water evapotranspired was determined by the difference between the soil water storage at the beginning and at the end of irrigation withholding periods, from the surface to 80-cm depth. Evapotranspiration of upland rice from R3 stage was higher compared to that observed from R5 stage, when subjected to similar irrigation withholding periods in both growth stages. Rice grain yield is more sensitive to irrigation withholding imposed from R5 stage than from R3 stage.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectEstádios de desenvolvimentopt_BR
dc.subjectSupressão da irrigaçãopt_BR
dc.titleEvapotranspiration and grain yield of upland rice as affected by water deficit.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2016-04-07T11:11:11Zpt_BR
dc.subject.thesagroArrozpt_BR
dc.subject.thesagroOryza sativapt_BR
dc.subject.thesagroDeficiência hídricapt_BR
dc.subject.thesagroIrrigaçãopt_BR
dc.subject.thesagroEvapotranspiraçãopt_BR
riaa.ainfo.id1042749pt_BR
riaa.ainfo.lastupdate2016-04-07pt_BR
dc.identifier.doi10.1590/1807-1929/agriambi.v20n5p441-446pt_BR
dc.contributor.institutionCLEBER MORAIS GUIMARAES, CNPAF; LUIS FERNANDO STONE, CNPAF; ANA CLAUDIA DE L. SILVA, INSTITUTO FEDERAL DE GOIÁS.pt_BR
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