Short-term warming and water stress affectPanicum maximumJacq. stoichiometric homeostasis and biomass production

Detalhes bibliográficos
Autor(a) principal: Olivera Viciedo, Dilier [UNESP]
Data de Publicação: 2019
Outros Autores: de Mello Prado, Renato [UNESP], Martínez, Carlos Alberto, Habermann, Eduardo, de Cássia Piccolo, Marisa
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.
id UNSP_af96d98ae30d8156af199705e7f695cc
oai_identifier_str oai:repositorio.unesp.br:11449/187664
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling 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:29462021-10-22T21:10:08Repositório 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_ 1799965485252476928