Short-term warming and water stress affectPanicum maximumJacq. stoichiometric homeostasis and biomass production
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.scitotenv.2019.05.108 http://hdl.handle.net/11449/187664 |
Resumo: | Climate changes affect the growth of forage species. However, information regarding the effects of global climate change on the stoichiometry of tropical pastures is lacking, especially under field conditions. Such information is crucial to understand how temperature conditions and water availability states are likely to affect the stoichiometric homeostasis and biomass production of Panicum maximum, an important C4 tropical forage species, under future climate change scenarios. Thus, we, conducted a field experiment using a temperature free-air controlled enhancement system and evaluated the effects of two temperature conditions, ambient temperature and moderate warming (2 °C above ambient canopy temperature), and two levels of water availability, irrigated and non-irrigated, on the stoichiometric patterns of C:N:P and leaf biomass production. The experiment was conducted using a randomized complete block design in a factorial arrangement with four replications over 3 weeks. Our findings revealed that the N and P leaf concentration greatly decreased in water-stressed plants, which increased the C:N and C:P ratios, while warming increased the N:P ratio. Leaf biomass production was impaired by up to 16% under water stress and ambient temperature conditions, but the biomass production was improved by 20% under warming and irrigated conditions. Our findings showed that homeostatic instability under rainfed conditions resulted in decreased leaf biomass production. Therefore, we concluded that warming is only beneficial for plant growth (i.e., a high homeostatic capacity was maintained) under well-irrigated conditions. |
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Short-term warming and water stress affectPanicum maximumJacq. stoichiometric homeostasis and biomass productionDroughtEcological stoichiometryGlobal climate changeTemperature free-air controlled enhancement (T-FACE)Tropical grassClimate changes affect the growth of forage species. However, information regarding the effects of global climate change on the stoichiometry of tropical pastures is lacking, especially under field conditions. Such information is crucial to understand how temperature conditions and water availability states are likely to affect the stoichiometric homeostasis and biomass production of Panicum maximum, an important C4 tropical forage species, under future climate change scenarios. Thus, we, conducted a field experiment using a temperature free-air controlled enhancement system and evaluated the effects of two temperature conditions, ambient temperature and moderate warming (2 °C above ambient canopy temperature), and two levels of water availability, irrigated and non-irrigated, on the stoichiometric patterns of C:N:P and leaf biomass production. The experiment was conducted using a randomized complete block design in a factorial arrangement with four replications over 3 weeks. Our findings revealed that the N and P leaf concentration greatly decreased in water-stressed plants, which increased the C:N and C:P ratios, while warming increased the N:P ratio. Leaf biomass production was impaired by up to 16% under water stress and ambient temperature conditions, but the biomass production was improved by 20% under warming and irrigated conditions. Our findings showed that homeostatic instability under rainfed conditions resulted in decreased leaf biomass production. Therefore, we concluded that warming is only beneficial for plant growth (i.e., a high homeostatic capacity was maintained) under well-irrigated conditions.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)São Paulo State University (UNESP) School of Agricultural and Veterinarian SciencesDepartment of Biology University of São PauloUniversity of São Paulo Center of Nuclear Energy in AgricultureAgronomy Department University of Sancti Spiritus “Jose Marti Perez” (UNISS)São Paulo State University (UNESP) School of Agricultural and Veterinarian SciencesFAPESP: 16/09742-8FAPESP: 2008/58075-8CNPq: 446357/2015-4Universidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)University of Sancti Spiritus “Jose Marti Perez” (UNISS)Olivera Viciedo, Dilier [UNESP]de Mello Prado, Renato [UNESP]Martínez, Carlos AlbertoHabermann, Eduardode Cássia Piccolo, Marisa2019-10-06T15:43:24Z2019-10-06T15:43:24Z2019-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article267-274http://dx.doi.org/10.1016/j.scitotenv.2019.05.108Science of the Total Environment, v. 681, p. 267-274.1879-10260048-9697http://hdl.handle.net/11449/18766410.1016/j.scitotenv.2019.05.1082-s2.0-85065705314Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScience of the Total Environmentinfo:eu-repo/semantics/openAccess2021-10-22T21:10:08Zoai:repositorio.unesp.br:11449/187664Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:53:57.033351Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Short-term warming and water stress affectPanicum maximumJacq. stoichiometric homeostasis and biomass production |
title |
Short-term warming and water stress affectPanicum maximumJacq. stoichiometric homeostasis and biomass production |
spellingShingle |
Short-term warming and water stress affectPanicum maximumJacq. stoichiometric homeostasis and biomass production Olivera Viciedo, Dilier [UNESP] Drought Ecological stoichiometry Global climate change Temperature free-air controlled enhancement (T-FACE) Tropical grass |
title_short |
Short-term warming and water stress affectPanicum maximumJacq. stoichiometric homeostasis and biomass production |
title_full |
Short-term warming and water stress affectPanicum maximumJacq. stoichiometric homeostasis and biomass production |
title_fullStr |
Short-term warming and water stress affectPanicum maximumJacq. stoichiometric homeostasis and biomass production |
title_full_unstemmed |
Short-term warming and water stress affectPanicum maximumJacq. stoichiometric homeostasis and biomass production |
title_sort |
Short-term warming and water stress affectPanicum maximumJacq. stoichiometric homeostasis and biomass production |
author |
Olivera Viciedo, Dilier [UNESP] |
author_facet |
Olivera Viciedo, Dilier [UNESP] de Mello Prado, Renato [UNESP] Martínez, Carlos Alberto Habermann, Eduardo de Cássia Piccolo, Marisa |
author_role |
author |
author2 |
de Mello Prado, Renato [UNESP] Martínez, Carlos Alberto Habermann, Eduardo de Cássia Piccolo, Marisa |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) University of Sancti Spiritus “Jose Marti Perez” (UNISS) |
dc.contributor.author.fl_str_mv |
Olivera Viciedo, Dilier [UNESP] de Mello Prado, Renato [UNESP] Martínez, Carlos Alberto Habermann, Eduardo de Cássia Piccolo, Marisa |
dc.subject.por.fl_str_mv |
Drought Ecological stoichiometry Global climate change Temperature free-air controlled enhancement (T-FACE) Tropical grass |
topic |
Drought Ecological stoichiometry Global climate change Temperature free-air controlled enhancement (T-FACE) Tropical grass |
description |
Climate changes affect the growth of forage species. However, information regarding the effects of global climate change on the stoichiometry of tropical pastures is lacking, especially under field conditions. Such information is crucial to understand how temperature conditions and water availability states are likely to affect the stoichiometric homeostasis and biomass production of Panicum maximum, an important C4 tropical forage species, under future climate change scenarios. Thus, we, conducted a field experiment using a temperature free-air controlled enhancement system and evaluated the effects of two temperature conditions, ambient temperature and moderate warming (2 °C above ambient canopy temperature), and two levels of water availability, irrigated and non-irrigated, on the stoichiometric patterns of C:N:P and leaf biomass production. The experiment was conducted using a randomized complete block design in a factorial arrangement with four replications over 3 weeks. Our findings revealed that the N and P leaf concentration greatly decreased in water-stressed plants, which increased the C:N and C:P ratios, while warming increased the N:P ratio. Leaf biomass production was impaired by up to 16% under water stress and ambient temperature conditions, but the biomass production was improved by 20% under warming and irrigated conditions. Our findings showed that homeostatic instability under rainfed conditions resulted in decreased leaf biomass production. Therefore, we concluded that warming is only beneficial for plant growth (i.e., a high homeostatic capacity was maintained) under well-irrigated conditions. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T15:43:24Z 2019-10-06T15:43:24Z 2019-09-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.scitotenv.2019.05.108 Science of the Total Environment, v. 681, p. 267-274. 1879-1026 0048-9697 http://hdl.handle.net/11449/187664 10.1016/j.scitotenv.2019.05.108 2-s2.0-85065705314 |
url |
http://dx.doi.org/10.1016/j.scitotenv.2019.05.108 http://hdl.handle.net/11449/187664 |
identifier_str_mv |
Science of the Total Environment, v. 681, p. 267-274. 1879-1026 0048-9697 10.1016/j.scitotenv.2019.05.108 2-s2.0-85065705314 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Science of the Total Environment |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
267-274 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129371190329344 |