Physiological quality of sesame seeds produced from plants subjected to water stress

Detalhes bibliográficos
Autor(a) principal: Silva,Ronimeire Torres da
Data de Publicação: 2016
Outros Autores: Oliveira,Alexandre Bosco de, Lopes,Maria de Fátima de Queiroz, Guimarães,Marcelo de Almeida, Dutra,Alek Sandro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista ciência agronômica (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000400643
Resumo: ABSTRACT Germination and seed vigor may be influenced by several factors, such as water stress during production, which affect crops differently according to the phenological stage of the plant. The aim of this study therefore was to evaluate the physiological quality of sesame seeds from plants subjected to water stress at different phenological stages. To this end, sesame plants were subjected to water stress at the following stages: I - germination to the start of vegetative growth (T1); II - vegetative growth to flowering (T2); III - flowering to pod formation (T3); IV - fruit maturation (T4); also for stress at all stages (T5) and full irrigation (T6). By weighing and daily irrigation of the containers, levels were kept at 50% of pot capacity (CV) for treatments with water deficit, and at 100% CV for treatments with no deficit. At 90 days after planting, the plants were harvested. The seeds were evaluated by germination test, first germination count, germination speed index, mean germination time, accelerated aging, electrical conductivity, seedling emergence, emergence speed index, mean time of emergence, seedling length and seedling dry weight. Sesame seeds from plants grown under water deficit display lower physiological quality. Between germination and the start of vegetative growth, and between flowering and fruit formation, the sesame is more sensitive to water stress, so that water limitation during these periods results in the production of seeds of low physiological quality.
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spelling Physiological quality of sesame seeds produced from plants subjected to water stressSesamum indicum LWater deficitPhenologyGerminationGas exchangeABSTRACT Germination and seed vigor may be influenced by several factors, such as water stress during production, which affect crops differently according to the phenological stage of the plant. The aim of this study therefore was to evaluate the physiological quality of sesame seeds from plants subjected to water stress at different phenological stages. To this end, sesame plants were subjected to water stress at the following stages: I - germination to the start of vegetative growth (T1); II - vegetative growth to flowering (T2); III - flowering to pod formation (T3); IV - fruit maturation (T4); also for stress at all stages (T5) and full irrigation (T6). By weighing and daily irrigation of the containers, levels were kept at 50% of pot capacity (CV) for treatments with water deficit, and at 100% CV for treatments with no deficit. At 90 days after planting, the plants were harvested. The seeds were evaluated by germination test, first germination count, germination speed index, mean germination time, accelerated aging, electrical conductivity, seedling emergence, emergence speed index, mean time of emergence, seedling length and seedling dry weight. Sesame seeds from plants grown under water deficit display lower physiological quality. Between germination and the start of vegetative growth, and between flowering and fruit formation, the sesame is more sensitive to water stress, so that water limitation during these periods results in the production of seeds of low physiological quality.Universidade Federal do Ceará2016-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000400643Revista Ciência Agronômica v.47 n.4 2016reponame:Revista ciência agronômica (Online)instname:Universidade Federal do Ceará (UFC)instacron:UFC10.5935/1806-6690.20160077info:eu-repo/semantics/openAccessSilva,Ronimeire Torres daOliveira,Alexandre Bosco deLopes,Maria de Fátima de QueirozGuimarães,Marcelo de AlmeidaDutra,Alek Sandroeng2016-07-27T00:00:00Zoai:scielo:S1806-66902016000400643Revistahttp://www.ccarevista.ufc.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||alekdutra@ufc.br|| ccarev@ufc.br1806-66900045-6888opendoar:2016-07-27T00:00Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv Physiological quality of sesame seeds produced from plants subjected to water stress
title Physiological quality of sesame seeds produced from plants subjected to water stress
spellingShingle Physiological quality of sesame seeds produced from plants subjected to water stress
Silva,Ronimeire Torres da
Sesamum indicum L
Water deficit
Phenology
Germination
Gas exchange
title_short Physiological quality of sesame seeds produced from plants subjected to water stress
title_full Physiological quality of sesame seeds produced from plants subjected to water stress
title_fullStr Physiological quality of sesame seeds produced from plants subjected to water stress
title_full_unstemmed Physiological quality of sesame seeds produced from plants subjected to water stress
title_sort Physiological quality of sesame seeds produced from plants subjected to water stress
author Silva,Ronimeire Torres da
author_facet Silva,Ronimeire Torres da
Oliveira,Alexandre Bosco de
Lopes,Maria de Fátima de Queiroz
Guimarães,Marcelo de Almeida
Dutra,Alek Sandro
author_role author
author2 Oliveira,Alexandre Bosco de
Lopes,Maria de Fátima de Queiroz
Guimarães,Marcelo de Almeida
Dutra,Alek Sandro
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Silva,Ronimeire Torres da
Oliveira,Alexandre Bosco de
Lopes,Maria de Fátima de Queiroz
Guimarães,Marcelo de Almeida
Dutra,Alek Sandro
dc.subject.por.fl_str_mv Sesamum indicum L
Water deficit
Phenology
Germination
Gas exchange
topic Sesamum indicum L
Water deficit
Phenology
Germination
Gas exchange
description ABSTRACT Germination and seed vigor may be influenced by several factors, such as water stress during production, which affect crops differently according to the phenological stage of the plant. The aim of this study therefore was to evaluate the physiological quality of sesame seeds from plants subjected to water stress at different phenological stages. To this end, sesame plants were subjected to water stress at the following stages: I - germination to the start of vegetative growth (T1); II - vegetative growth to flowering (T2); III - flowering to pod formation (T3); IV - fruit maturation (T4); also for stress at all stages (T5) and full irrigation (T6). By weighing and daily irrigation of the containers, levels were kept at 50% of pot capacity (CV) for treatments with water deficit, and at 100% CV for treatments with no deficit. At 90 days after planting, the plants were harvested. The seeds were evaluated by germination test, first germination count, germination speed index, mean germination time, accelerated aging, electrical conductivity, seedling emergence, emergence speed index, mean time of emergence, seedling length and seedling dry weight. Sesame seeds from plants grown under water deficit display lower physiological quality. Between germination and the start of vegetative growth, and between flowering and fruit formation, the sesame is more sensitive to water stress, so that water limitation during these periods results in the production of seeds of low physiological quality.
publishDate 2016
dc.date.none.fl_str_mv 2016-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000400643
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000400643
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/1806-6690.20160077
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Universidade Federal do Ceará
publisher.none.fl_str_mv Universidade Federal do Ceará
dc.source.none.fl_str_mv Revista Ciência Agronômica v.47 n.4 2016
reponame:Revista ciência agronômica (Online)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Revista ciência agronômica (Online)
collection Revista ciência agronômica (Online)
repository.name.fl_str_mv Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv ||alekdutra@ufc.br|| ccarev@ufc.br
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