Priming effect on the physiological potential of maize seeds under abiotic stress1

Detalhes bibliográficos
Autor(a) principal: Gouveia, Geraldo Candido Cabral [UNESP]
Data de Publicação: 2017
Outros Autores: Binotti, Flávio Ferreira Da Silva, Costa, Edilson
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
DOI: 10.1590/1983-40632016v4746560
Texto Completo: http://dx.doi.org/10.1590/1983-40632016v4746560
http://hdl.handle.net/11449/212135
Resumo: Abiotic stress directly influences seed performance, so poor-vigor seeds under adverse conditions tend to show lower germination speed and rate. By controlling the hydration level of seeds (i.e., priming) with the addition of chemical agents, it is possible to elicit the maximum physiological potential of seeds, even under stress conditions. This study aimed to evaluate the priming effect of different chemical agents on the physiological potential of maize seeds under abiotic stress (polyethylene glycol induced water stress, hypoxia, low temperature and salt stress after controlled deterioration). The experimental design was completely randomized, in a 5 x 2 factorial scheme, consisting of different chemical agents used to hydrate the seeds [control without priming; control primed with water; calcium nitrate (0.2 %); amino acid L-phenylalanine (0.05 %); amino acid L-phenylalanine (0.5 %) + calcium nitrate (0.2 %)] and 2 seed lots, with four replicates. Priming with calcium nitrate lead to a greater germination and higher emergence rate of the seedlings under suboptimal temperature conditions, and seeds that underwent controlled deterioration showed greater germination levels with the use of calcium nitrate + phenylalanine in the priming process, regardless of the lot used. In general, seed priming allowed a greater expression of seed vigor, even though an interaction with lots was observed in some variables.
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spelling Priming effect on the physiological potential of maize seeds under abiotic stress1Efeito do condicionamento no potencial fisiológico de sementes de milho sob estresse abióticoZea mayscontrolled deteriorationphenylalanineZea maysdeterioração controladafenilalaninaAbiotic stress directly influences seed performance, so poor-vigor seeds under adverse conditions tend to show lower germination speed and rate. By controlling the hydration level of seeds (i.e., priming) with the addition of chemical agents, it is possible to elicit the maximum physiological potential of seeds, even under stress conditions. This study aimed to evaluate the priming effect of different chemical agents on the physiological potential of maize seeds under abiotic stress (polyethylene glycol induced water stress, hypoxia, low temperature and salt stress after controlled deterioration). The experimental design was completely randomized, in a 5 x 2 factorial scheme, consisting of different chemical agents used to hydrate the seeds [control without priming; control primed with water; calcium nitrate (0.2 %); amino acid L-phenylalanine (0.05 %); amino acid L-phenylalanine (0.5 %) + calcium nitrate (0.2 %)] and 2 seed lots, with four replicates. Priming with calcium nitrate lead to a greater germination and higher emergence rate of the seedlings under suboptimal temperature conditions, and seeds that underwent controlled deterioration showed greater germination levels with the use of calcium nitrate + phenylalanine in the priming process, regardless of the lot used. In general, seed priming allowed a greater expression of seed vigor, even though an interaction with lots was observed in some variables.O estresse abiótico influencia diretamente no desempenho das sementes, sendo que sementes com baixo vigor, sob condições adversas, tendem a apresentar menor velocidade e percentual de germinação. A hidratação controlada das sementes com agentes químicos pode expressar o máximo potencial fisiológico das mesmas, mesmo quando submetidas a condições de estresse. Objetivou-se avaliar o potencial fisiológico de sementes de milho hidratadas com diferentes agentes químicos e submetidas a estresse abiótico (estresse hídrico induzido por polietileno glicol, hipóxia, baixa temperatura e estresse salino após deterioração controlada). O delineamento experimental utilizado foi o inteiramente casualizado, em esquema fatorial 5 x 2, sendo constituído por agentes químicos empregados na hidratação das sementes [testemunha - sem hidratação; controle com água; nitrato de cálcio (0.2%); aminoácido L-fenilalanina (0.05 %); aminoácido L-fenilalanina (0.5 %) + nitrato de cálcio (0.2 %)] e 2 lotes de sementes, com quatro repetições. A hidratação controlada com nitrato de cálcio propicia maior germinação e emergência de plântulas em condição de temperatura subótima, e sementes oriundas da deterioração controlada apresentam maior germinação com o uso de nitrato de cálcio mais fenilalanina na hidratação das sementes, independentemente do lote utilizado. De modo geral, a hidratação das sementes possibilitou maior expressão de vigor, mesmo que interação com os lotes tenha sido observada em algumas variáveis.FUNDECT - UNIVERSAL - MSUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Engenharia de Ilha SolteiraUniversidade Estadual de Mato Grosso do SulUniversidade Estadual Paulista Júlio de Mesquita Filho, Faculdade de Engenharia de Ilha SolteiraFUNDECT - UNIVERSAL - MS: 23/200.480/2014Escola de Agronomia e Engenharia de Alimentos/UFGUniversidade Estadual Paulista (Unesp)Universidade Estadual de Mato Grosso do SulGouveia, Geraldo Candido Cabral [UNESP]Binotti, Flávio Ferreira Da SilvaCosta, Edilson2021-07-14T10:35:09Z2021-07-14T10:35:09Z2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article328-335application/pdfhttp://dx.doi.org/10.1590/1983-40632016v4746560Pesquisa Agropecuária Tropical. Escola de Agronomia e Engenharia de Alimentos/UFG, v. 47, n. 03, p. 328-335, 2017.1983-4063http://hdl.handle.net/11449/21213510.1590/1983-40632016v4746560S1983-40632017000300328S1983-40632017000300328.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccess2023-11-18T06:13:05Zoai:repositorio.unesp.br:11449/212135Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:02:23.603504Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Priming effect on the physiological potential of maize seeds under abiotic stress1
Efeito do condicionamento no potencial fisiológico de sementes de milho sob estresse abiótico
title Priming effect on the physiological potential of maize seeds under abiotic stress1
spellingShingle Priming effect on the physiological potential of maize seeds under abiotic stress1
Priming effect on the physiological potential of maize seeds under abiotic stress1
Gouveia, Geraldo Candido Cabral [UNESP]
Zea mays
controlled deterioration
phenylalanine
Zea mays
deterioração controlada
fenilalanina
Gouveia, Geraldo Candido Cabral [UNESP]
Zea mays
controlled deterioration
phenylalanine
Zea mays
deterioração controlada
fenilalanina
title_short Priming effect on the physiological potential of maize seeds under abiotic stress1
title_full Priming effect on the physiological potential of maize seeds under abiotic stress1
title_fullStr Priming effect on the physiological potential of maize seeds under abiotic stress1
Priming effect on the physiological potential of maize seeds under abiotic stress1
title_full_unstemmed Priming effect on the physiological potential of maize seeds under abiotic stress1
Priming effect on the physiological potential of maize seeds under abiotic stress1
title_sort Priming effect on the physiological potential of maize seeds under abiotic stress1
author Gouveia, Geraldo Candido Cabral [UNESP]
author_facet Gouveia, Geraldo Candido Cabral [UNESP]
Gouveia, Geraldo Candido Cabral [UNESP]
Binotti, Flávio Ferreira Da Silva
Costa, Edilson
Binotti, Flávio Ferreira Da Silva
Costa, Edilson
author_role author
author2 Binotti, Flávio Ferreira Da Silva
Costa, Edilson
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Estadual de Mato Grosso do Sul
dc.contributor.author.fl_str_mv Gouveia, Geraldo Candido Cabral [UNESP]
Binotti, Flávio Ferreira Da Silva
Costa, Edilson
dc.subject.por.fl_str_mv Zea mays
controlled deterioration
phenylalanine
Zea mays
deterioração controlada
fenilalanina
topic Zea mays
controlled deterioration
phenylalanine
Zea mays
deterioração controlada
fenilalanina
description Abiotic stress directly influences seed performance, so poor-vigor seeds under adverse conditions tend to show lower germination speed and rate. By controlling the hydration level of seeds (i.e., priming) with the addition of chemical agents, it is possible to elicit the maximum physiological potential of seeds, even under stress conditions. This study aimed to evaluate the priming effect of different chemical agents on the physiological potential of maize seeds under abiotic stress (polyethylene glycol induced water stress, hypoxia, low temperature and salt stress after controlled deterioration). The experimental design was completely randomized, in a 5 x 2 factorial scheme, consisting of different chemical agents used to hydrate the seeds [control without priming; control primed with water; calcium nitrate (0.2 %); amino acid L-phenylalanine (0.05 %); amino acid L-phenylalanine (0.5 %) + calcium nitrate (0.2 %)] and 2 seed lots, with four replicates. Priming with calcium nitrate lead to a greater germination and higher emergence rate of the seedlings under suboptimal temperature conditions, and seeds that underwent controlled deterioration showed greater germination levels with the use of calcium nitrate + phenylalanine in the priming process, regardless of the lot used. In general, seed priming allowed a greater expression of seed vigor, even though an interaction with lots was observed in some variables.
publishDate 2017
dc.date.none.fl_str_mv 2017
2021-07-14T10:35:09Z
2021-07-14T10:35:09Z
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/10.1590/1983-40632016v4746560
Pesquisa Agropecuária Tropical. Escola de Agronomia e Engenharia de Alimentos/UFG, v. 47, n. 03, p. 328-335, 2017.
1983-4063
http://hdl.handle.net/11449/212135
10.1590/1983-40632016v4746560
S1983-40632017000300328
S1983-40632017000300328.pdf
url http://dx.doi.org/10.1590/1983-40632016v4746560
http://hdl.handle.net/11449/212135
identifier_str_mv Pesquisa Agropecuária Tropical. Escola de Agronomia e Engenharia de Alimentos/UFG, v. 47, n. 03, p. 328-335, 2017.
1983-4063
10.1590/1983-40632016v4746560
S1983-40632017000300328
S1983-40632017000300328.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Pesquisa Agropecuária Tropical
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 328-335
application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia e Engenharia de Alimentos/UFG
publisher.none.fl_str_mv Escola de Agronomia e Engenharia de Alimentos/UFG
dc.source.none.fl_str_mv SciELO
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
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dc.identifier.doi.none.fl_str_mv 10.1590/1983-40632016v4746560