Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/993386
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dc.contributor.authorSANTOS, T. M.pt_BR
dc.contributor.authorVOLTOLINI, T. V.pt_BR
dc.contributor.authorANGELOTTI, F.pt_BR
dc.contributor.authorAIDAR, S. de T.pt_BR
dc.contributor.authorCHAVES, A. R. de M.pt_BR
dc.date.accessioned2014-08-26T11:11:11Zpt_BR
dc.date.available2014-08-26T11:11:11Zpt_BR
dc.date.created2014-08-26pt_BR
dc.date.issued2014pt_BR
dc.identifier.citationRevista Brasileira de Zootecnia, Viçosa, MG, v. 43, n. 8, p. 404-409, 2014.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/993386pt_BR
dc.descriptionThe objective of the present trial was to evaluate the productive and morphogenetic characteristics of buffel grass subjected to different air temperatures and CO2 concentrations. Three cultivars of buffel grass (Biloela, Aridus and West Australian) were compared. Cultivars were grown in growth chambers at three temperatures (day/night): 26/20, 29/23, and 32/26 °C, combined with two concentrations of CO2: 370 and 550 ?mol mol?1. The experimental design was completely randomized, in a 3 × 3 × 2 factorial arrangement with three replications. There were interactions between buffel grass cultivars and air temperatures on leaf elongation rate (LER), leaf appearance rate (LAR), leaf lifespan (LL) and senescence rate (SR), whereas cultivars vs. carbon dioxide concentration affected forage mass (FM), root mass (RM), shoot/root ratio, LL and SR. Leaf elongation rate and SR were higher as the air temperature was raised. Increasing air temperature also promoted an increase in LAR, except for West Australian. High CO2 concentration provided greater SR of plants, except for Biloela. Cultivar West Australian had higher FM in relation to Biloela and Aridus when the CO2 concentration was increased to 550 ?mol mol?1. West Australian was the only cultivar that responded with more forage mass when it was exposed to higher carbon dioxide concentrations, whereas Aridus had depression in forage mass. The increase in air temperatures affects morphogenetic responses of buffel grass, accelerating its vegetative development without increasing forage mass. Elevated carbon dioxide concentration changes productive responses of buffel grass.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectBiloelapt_BR
dc.subjectAriduspt_BR
dc.subjectWest Australianpt_BR
dc.subjectMudanças Climáticaspt_BR
dc.subjectPasturept_BR
dc.titleProductive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2014-08-26T11:11:11Zpt_BR
dc.subject.thesagroPastagempt_BR
dc.subject.thesagroCapim buffelpt_BR
dc.subject.thesagroDióxido de carbonopt_BR
dc.subject.thesagroCenchrus ciliarispt_BR
dc.subject.thesagroVariedadept_BR
dc.subject.nalthesaurusCarbon dioxidept_BR
dc.subject.nalthesaurusClimate changept_BR
riaa.ainfo.id993386pt_BR
riaa.ainfo.lastupdate2014-08-26pt_BR
dc.contributor.institutionROBERTA MACHADO SANTOS, Universidade Federal de Feira de Santana; TADEU VINHAS VOLTOLINI, CPATSA; FRANCISLENE ANGELOTTI, CPATSA; SAULO DE TARSO AIDAR, CPATSA; AGNALDO RODRIGUES DE MELO CHAVES, CPATSA.pt_BR
Aparece nas coleções:Artigo em periódico indexado (CPATSA)

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