Productive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.

Detalhes bibliográficos
Autor(a) principal: SANTOS, T. M.
Data de Publicação: 2014
Outros Autores: VOLTOLINI, T. V., ANGELOTTI, F., AIDAR, S. de T., CHAVES, A. R. de M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/993386
Resumo: The 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.
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spelling Productive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.BiloelaAridusWest AustralianMudanças ClimáticasPasturePastagemCapim buffelDióxido de carbonoCenchrus ciliarisVariedadeCarbon dioxideClimate changeThe 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.ROBERTA 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.SANTOS, T. M.VOLTOLINI, T. V.ANGELOTTI, F.AIDAR, S. de T.CHAVES, A. R. de M.2014-08-26T11:11:11Z2014-08-26T11:11:11Z2014-08-2620142014-08-26T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Brasileira de Zootecnia, Viçosa, MG, v. 43, n. 8, p. 404-409, 2014.http://www.alice.cnptia.embrapa.br/alice/handle/doc/993386enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T00:38:56Zoai:www.alice.cnptia.embrapa.br:doc/993386Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T00:38:56falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T00:38:56Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Productive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.
title Productive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.
spellingShingle Productive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.
SANTOS, T. M.
Biloela
Aridus
West Australian
Mudanças Climáticas
Pasture
Pastagem
Capim buffel
Dióxido de carbono
Cenchrus ciliaris
Variedade
Carbon dioxide
Climate change
title_short Productive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.
title_full Productive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.
title_fullStr Productive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.
title_full_unstemmed Productive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.
title_sort Productive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.
author SANTOS, T. M.
author_facet SANTOS, T. M.
VOLTOLINI, T. V.
ANGELOTTI, F.
AIDAR, S. de T.
CHAVES, A. R. de M.
author_role author
author2 VOLTOLINI, T. V.
ANGELOTTI, F.
AIDAR, S. de T.
CHAVES, A. R. de M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv ROBERTA 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.
dc.contributor.author.fl_str_mv SANTOS, T. M.
VOLTOLINI, T. V.
ANGELOTTI, F.
AIDAR, S. de T.
CHAVES, A. R. de M.
dc.subject.por.fl_str_mv Biloela
Aridus
West Australian
Mudanças Climáticas
Pasture
Pastagem
Capim buffel
Dióxido de carbono
Cenchrus ciliaris
Variedade
Carbon dioxide
Climate change
topic Biloela
Aridus
West Australian
Mudanças Climáticas
Pasture
Pastagem
Capim buffel
Dióxido de carbono
Cenchrus ciliaris
Variedade
Carbon dioxide
Climate change
description The 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.
publishDate 2014
dc.date.none.fl_str_mv 2014-08-26T11:11:11Z
2014-08-26T11:11:11Z
2014-08-26
2014
2014-08-26T11:11:11Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Revista Brasileira de Zootecnia, Viçosa, MG, v. 43, n. 8, p. 404-409, 2014.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/993386
identifier_str_mv Revista Brasileira de Zootecnia, Viçosa, MG, v. 43, n. 8, p. 404-409, 2014.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/993386
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
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