Por favor, use este identificador para citar o enlazar este ítem: http://www.alice.cnptia.embrapa.br/alice/handle/doc/969242
Registro completo de metadatos
Campo DCValorLengua/Idioma
dc.contributor.authorSANTOS, P. M.pt_BR
dc.contributor.authorCRUZ, P. G.pt_BR
dc.contributor.authorARAUJO, L. C. dept_BR
dc.contributor.authorPEZZOPANE, J. R. M.pt_BR
dc.contributor.authorVALLE, C. B. dopt_BR
dc.contributor.authorPEZZOPANE, C. de G.pt_BR
dc.date.accessioned2013-10-23T11:11:11Zpt_BR
dc.date.available2013-10-23T11:11:11Zpt_BR
dc.date.created2013-10-23pt_BR
dc.date.issued2013pt_BR
dc.identifier.citationRevista Brasileira de Zootecnia, v. 42, n. 11, p. 767-773, nov. 2013.pt_BR
dc.identifier.issn1806-9290pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/969242pt_BR
dc.descriptionTwo cultivars of Brachiaria brizantha (Hochst ex. A. Rich) Stapf. (Syn. Urochloa) were evaluated for their adaptation to water deficit and the stress response mechanisms in a greenhouse experiment. The experimental design was in completely randomized blocks with a 2 × 2 × 4 factorial arrangement. The Marandu and BRS Piatã cultivars were evaluated under two water availability conditions, with or without water restriction. The harvests were carried out 0, 7, 14 and 28 days after the start of water restriction. For both cultivars, the water deficit stress caused a reduction in shoot biomass and leaf area and an increase in the percentage of roots in the deeper soil layers. The B. brizantha cv. Marandu reached critical levels of leaf water potential in a shorter period of water restriction than did the B. brizantha cv. BRS Piatã. The osmoregulation and deepening of the root system are mechanisms of adaptation to water stress observed in both Marandu and BRS Piatã cultivars. Besides that, the Marandu cultivar also increases its leaf senescence and, consequentially, decreases its leaf area, as a response to water deficit.eng
dc.language.isoengpt_BR
dc.rightsopenAccesspt_BR
dc.subjectBRS Piatãpt_BR
dc.subjectMarandupt_BR
dc.subjectOsmotic potentialpt_BR
dc.subjectWater availabilitypt_BR
dc.titleResponse mechanisms of Brachiaria brizantha cultivars to water deficit stress.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2016-02-26T11:11:11Zpt_BR
dc.subject.nalthesauruswater potentialpt_BR
riaa.ainfo.id969242pt_BR
riaa.ainfo.lastupdate2016-02-26pt_BR
dc.identifier.doihttps://doi.org/10.1590/S1516-35982013001100001eng
dc.contributor.institutionPATRICIA MENEZES SANTOS, CPPSE; PEDRO GOMES DA CRUZ; LEANDRO COELHO DE ARAUJO; JOSE RICARDO MACEDO PEZZOPANE, CPPSE; CACILDA BORGES DO VALLE, CNPGC; CRISTIANA DE GASPARI PEZZOPANE.pt_BR
Aparece en las colecciones:Artigo em periódico indexado (CPPSE)

Ficheros en este ítem:
Fichero Descripción TamañoFormato 
PROCI2013.00155.pdf341.13 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro sencillo del ítem

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace