Productive and morphogenetic responses of buffel grass at different air temperatures and CO2 concentrations.
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
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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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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1794503393621835776 |