Parâmetros fisiológicos de cultivares de cevada sob déficits hídricos

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatordos Santos, Alexandre Barreto Almeida
dc.creatorKlar, Antonio Evaldo
dc.creatorJadoski Jr., Cleber
dc.date2014-05-27T11:23:42Z
dc.date2016-10-25T18:26:10Z
dc.date2014-05-27T11:23:42Z
dc.date2016-10-25T18:26:10Z
dc.date2008-12-01
dc.date.accessioned2017-04-06T01:33:01Z
dc.date.available2017-04-06T01:33:01Z
dc.identifierIrriga, v. 13, n. 4, p. 438-448, 2008.
dc.identifier1413-7895
dc.identifier1808-3765
dc.identifierhttp://hdl.handle.net/11449/70645
dc.identifierhttp://acervodigital.unesp.br/handle/11449/70645
dc.identifier2-s2.0-65849370593.pdf
dc.identifier2-s2.0-65849370593
dc.identifierhttp://200.145.140.50/ojs1/viewarticle.php?id=366&layout=abstract
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/891719
dc.descriptionThe objective of this study was to evaluate some physiological parameters in six barley cultivars (Borema, Lagoa, BRS-180, BRS-195, EMB-128 e BRS-225), under water stress in different crop phenological phases. The treatments were as follows: TI - pots constantly irrigated until harvest: T2: - water stress starting from 45 days after sowing (DAS) and T3 - water stress starting from 65 DAS. Leaf resistance to water vapor diffusion (Rs), relative water content (RWC), and leaf water potential (Ψ1) were used to evaluate drought tolerance. Pots were arranged in a randomized block design with four blocks, six barley cultivars, and three treatments, in a total of seventy two pots. The experiment was conducted from August to November 2005 in a polyethylene greenhouse located at the experimental area of Rural Engineering Department - FCA, UNESP - Botucatu - SP. The results showed that all barley cultivars presented some adaptation to water stress, but EMB-128 was the most likely and BRS-180 the least likely to be drought tolerant. The results revealed that only one drought cycle may increase tolerance to drought.
dc.languagepor
dc.relationIrriga
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectAnd leaf water potential
dc.subjectLeaf resistance to water vapor diffusion
dc.subjectRelative water content
dc.subjectbarley
dc.subjectcultivar
dc.subjectdrought resistance
dc.subjectphenology
dc.subjectwater content
dc.subjectwater stress
dc.subjectBovine respiratory syncytial virus
dc.subjectHordeum
dc.titleParâmetros fisiológicos de cultivares de cevada sob déficits hídricos
dc.typeOtro


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