Beet seed priming with growth regulators

Detalhes bibliográficos
Autor(a) principal: Dotto, Lucas
Data de Publicação: 2017
Outros Autores: Silva, Vanessa Neumann
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/26513
Resumo: Seed priming is a technique used to induce metabolic germination processes. Use of growth regulators in seed priming may facilitate increments in physiological processes during seed germination. The objective of this study was to evaluate the effect of priming and growth regulators on beet seed germination. The treatments were cultivar type (Early Wonder, Itapuã and Maravilha) and seed priming technique, which included a control (unconditioned seed) standard hydropriming (water) and a conditioning with salicylic, gibberellic and ascorbic acids, respectively. The treatments were defined by initially testing 0, 1, 2 and 4 mM ascorbic, gibberellic and salicylic acids. Before seed priming, imbibition seed curves were established to determine the optimal conditioning time. After conditioning, the germination, rate of germination, seedling length and seedling dry weight were evaluated. First, the appropriate dosage for conditioning was determined by using a completely randomized experimental design, with four replications per cultivar. Then, a 3 x 5 (cultivar x conditioning technique) factorial design was adopted. Whenever the results were significant by variance analysis, regression analysis was performed. Finally, Tukey’s test was used to compare the means at P=0.05. Beet seed priming alters the potential of germination and is influenced by the cultivar and conditioning technique. Pretreatment with 1?2 mM ascorbic, gibberellic or salicylic acids, respectively, promotes beet seed germination, whereas at 1?3 mM, the growth of roots and shoots of beet seedlings is promoted. The most effective techniques to promote germination and growth of sugar beet seedlings were priming with water, salicylic acid or gibberellic acid.
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spelling Beet seed priming with growth regulatorsCondicionamento fisiológico de sementes de beterraba com reguladores de crescimentoBeta vulgarisHydroprimingGibberellic acidSalicylic acidAscorbic acid.Beta vulgarisHidrocondicionamentoÁcido giberélicoÁcido salicílicoÁcido ascórbico.Seed priming is a technique used to induce metabolic germination processes. Use of growth regulators in seed priming may facilitate increments in physiological processes during seed germination. The objective of this study was to evaluate the effect of priming and growth regulators on beet seed germination. The treatments were cultivar type (Early Wonder, Itapuã and Maravilha) and seed priming technique, which included a control (unconditioned seed) standard hydropriming (water) and a conditioning with salicylic, gibberellic and ascorbic acids, respectively. The treatments were defined by initially testing 0, 1, 2 and 4 mM ascorbic, gibberellic and salicylic acids. Before seed priming, imbibition seed curves were established to determine the optimal conditioning time. After conditioning, the germination, rate of germination, seedling length and seedling dry weight were evaluated. First, the appropriate dosage for conditioning was determined by using a completely randomized experimental design, with four replications per cultivar. Then, a 3 x 5 (cultivar x conditioning technique) factorial design was adopted. Whenever the results were significant by variance analysis, regression analysis was performed. Finally, Tukey’s test was used to compare the means at P=0.05. Beet seed priming alters the potential of germination and is influenced by the cultivar and conditioning technique. Pretreatment with 1?2 mM ascorbic, gibberellic or salicylic acids, respectively, promotes beet seed germination, whereas at 1?3 mM, the growth of roots and shoots of beet seedlings is promoted. The most effective techniques to promote germination and growth of sugar beet seedlings were priming with water, salicylic acid or gibberellic acid.O condicionamento fisiológico é uma técnica que permite a ativação dos processos metabólicos e fisiológicos na germinação das sementes por meio da utilização de reguladores de crescimento. Desta forma, objetivou-se avaliar o efeito do condicionamento fisiológico de sementes de beterraba com reguladores de crescimento. Foram utilizadas três cultivares: Early Wonder, Itapuã e Maravilha, submetidas a cinco tipos de condicionamentos: testemunha (semente não condicionada) hidrocondicionamento padrão (água), condicionamento com os ácidos salicílico, giberélico e ascórbico. Para definição dos tratamentos, foram testadas doses de 0; 1; 2 e 4 mMol.L-1 dos ácidos. Previamente ao condicionamento, foram realizadas as curvas de embebição das sementes, para determinação do tempo ideal de condicionamento, logo após, as sementes foram avaliadas quanto à porcentagem e velocidade de germinação, comprimento e massa seca de plântulas. O delineamento experimental utilizado foi inteiramente casualizado com quatro repetições, separado para cada cultivar, determinando-se as dosagens adequadas. Na segunda etapa foi adotado esquema fatorial 3 x 5 (cultivares x tipo de condicionamento). Os resultados foram submetidos a análise de variância e quando esta foi significativa procedeu-se a análise de regressão. Na segunda etapa do trabalho realizou-se comparação de médias com teste de Tukey a 5% de probabilidade de erro. O condicionamento fisiológico de sementes de beterraba altera o potencial de germinação e a resposta está relacionada com a cultivar utilizada e o tipo de condicionamento. As doses entre 1 e 2 mMol L-1 de ácido ascórbico, giberélico ou salicílico promoveram a germinação de sementes de beterraba e doses entre 1 e 3 mMol L-1 dos ácidos favoreceram o crescimento das raízes e parte aérea das plântulas. O condicionamento fisiológico com água, com ácido salicílico ou com ácido giberélico são as melhores técnicas, dentre as testadas, para promover a germinação e o crescimento de plântulas de beterraba.UEL2017-08-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2651310.5433/1679-0359.2017v38n4p1785Semina: Ciências Agrárias; Vol. 38 No. 4 (2017); 1785-1798Semina: Ciências Agrárias; v. 38 n. 4 (2017); 1785-17981679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/26513/21403Copyright (c) 2017 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessDotto, LucasSilva, Vanessa Neumann2022-10-24T12:15:39Zoai:ojs.pkp.sfu.ca:article/26513Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-24T12:15:39Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Beet seed priming with growth regulators
Condicionamento fisiológico de sementes de beterraba com reguladores de crescimento
title Beet seed priming with growth regulators
spellingShingle Beet seed priming with growth regulators
Dotto, Lucas
Beta vulgaris
Hydropriming
Gibberellic acid
Salicylic acid
Ascorbic acid.
Beta vulgaris
Hidrocondicionamento
Ácido giberélico
Ácido salicílico
Ácido ascórbico.
title_short Beet seed priming with growth regulators
title_full Beet seed priming with growth regulators
title_fullStr Beet seed priming with growth regulators
title_full_unstemmed Beet seed priming with growth regulators
title_sort Beet seed priming with growth regulators
author Dotto, Lucas
author_facet Dotto, Lucas
Silva, Vanessa Neumann
author_role author
author2 Silva, Vanessa Neumann
author2_role author
dc.contributor.author.fl_str_mv Dotto, Lucas
Silva, Vanessa Neumann
dc.subject.por.fl_str_mv Beta vulgaris
Hydropriming
Gibberellic acid
Salicylic acid
Ascorbic acid.
Beta vulgaris
Hidrocondicionamento
Ácido giberélico
Ácido salicílico
Ácido ascórbico.
topic Beta vulgaris
Hydropriming
Gibberellic acid
Salicylic acid
Ascorbic acid.
Beta vulgaris
Hidrocondicionamento
Ácido giberélico
Ácido salicílico
Ácido ascórbico.
description Seed priming is a technique used to induce metabolic germination processes. Use of growth regulators in seed priming may facilitate increments in physiological processes during seed germination. The objective of this study was to evaluate the effect of priming and growth regulators on beet seed germination. The treatments were cultivar type (Early Wonder, Itapuã and Maravilha) and seed priming technique, which included a control (unconditioned seed) standard hydropriming (water) and a conditioning with salicylic, gibberellic and ascorbic acids, respectively. The treatments were defined by initially testing 0, 1, 2 and 4 mM ascorbic, gibberellic and salicylic acids. Before seed priming, imbibition seed curves were established to determine the optimal conditioning time. After conditioning, the germination, rate of germination, seedling length and seedling dry weight were evaluated. First, the appropriate dosage for conditioning was determined by using a completely randomized experimental design, with four replications per cultivar. Then, a 3 x 5 (cultivar x conditioning technique) factorial design was adopted. Whenever the results were significant by variance analysis, regression analysis was performed. Finally, Tukey’s test was used to compare the means at P=0.05. Beet seed priming alters the potential of germination and is influenced by the cultivar and conditioning technique. Pretreatment with 1?2 mM ascorbic, gibberellic or salicylic acids, respectively, promotes beet seed germination, whereas at 1?3 mM, the growth of roots and shoots of beet seedlings is promoted. The most effective techniques to promote germination and growth of sugar beet seedlings were priming with water, salicylic acid or gibberellic acid.
publishDate 2017
dc.date.none.fl_str_mv 2017-08-04
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/26513
10.5433/1679-0359.2017v38n4p1785
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/26513
identifier_str_mv 10.5433/1679-0359.2017v38n4p1785
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/26513/21403
dc.rights.driver.fl_str_mv Copyright (c) 2017 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2017 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 38 No. 4 (2017); 1785-1798
Semina: Ciências Agrárias; v. 38 n. 4 (2017); 1785-1798
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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