Priming effect on the physiological potential of maize seeds under abiotic stress1
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
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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Repositório Institucional da UNESP |
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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 |
|
_version_ |
1822229963817877504 |
dc.identifier.doi.none.fl_str_mv |
10.1590/1983-40632016v4746560 |