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dc.contributor.authorALBUQUERQUE, P. E. P.pt_BR
dc.contributor.authorGOMIDE, R. L.pt_BR
dc.contributor.authorKLAR, A. E.pt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.created1998-12-30pt_BR
dc.date.issued1998pt_BR
dc.identifier.citationIn: INTER REGIONAL CONFERENCE ENVIRONMENT-WATER-INNOVATIVE ISSUES IN IRRIGATION AND DRAINAGE, 1., 1998, Lisbon, Portugal. [Proceedings]. New York: E & FNSPON, 1998. p. 189-196.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/481821pt_BR
dc.descriptionCanopy temperature (Tc), besides serving as a parameter to estimate crop evapotranspiration (ETc), can also be used to define water stress indexes that have the advantage to serve as a reference for the rational scheduling for irrigation for a crop. One of these indexes, which has been well disseminated, is the crop water stress index (CWSI), based on the ratio between crop resistance and aerodynamic resistance (rc/ra), whose value can be estimated by the difference between the cropy canopy and the air (Tc - Ta). A study was carried out with the objective of obtaining CWSI values for beans (Phaseolus vulgaris L.), under field conditions, in which the crop was under different irrigation scheduling; 2, 4, 8, 12 and 16 day intervals. The experiment was conducted at Sete Lagoas, Minas Gerais State, Brazil, in the period from July through October, 1995. Tc values were measured by means of infrared thermometry at two times of the day; between 10:00 and 11:00 am, and between 01:00 and 02:00 p.m. The obtained results pointed to a limit of 0,15 as a reference for the beginning of water stress to occur, which is consistent with other work and other index obtained under similar conditions.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectEstressept_BR
dc.subjectDrought stresspt_BR
dc.titleCrop water stress index for beans obtained from temperature difference between canopy and air.pt_BR
dc.typeArtigo em anais e proceedingspt_BR
dc.date.updated2018-06-11T11:11:11Zpt_BR
dc.subject.thesagroÁguapt_BR
dc.subject.thesagroEvapotranspiraçãopt_BR
dc.subject.thesagroFeijãopt_BR
dc.subject.thesagroIrrigaçãopt_BR
dc.subject.thesagroPhaseolus Vulgarispt_BR
dc.subject.thesagroTemperaturapt_BR
dc.subject.nalthesaurusevapotranspirationpt_BR
dc.subject.nalthesaurusirrigationpt_BR
dc.subject.nalthesaurustemperaturept_BR
riaa.ainfo.id481821pt_BR
riaa.ainfo.lastupdate2018-06-11 -03:00:00pt_BR
dc.contributor.institutionPAULO EMILIO PEREIRA DE ALBUQUERQUE, CNPMS; REINALDO LUCIO GOMIDE, CNPMS.pt_BR
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