Induced mutaton as a source of variability for cold tolerance of irrigated rice at the germinaton stage

Detalhes bibliográficos
Autor(a) principal: Raimondi, Juliana Vieira
Data de Publicação: 2020
Outros Autores: da Rocha, Fabiane, Marschalek, Rubens, Tullmann Neto, Augusto
Tipo de documento: Artigo
Idioma: por
Título da fonte: Agropecuária Catarinense (Online)
Texto Completo: https://publicacoes.epagri.sc.gov.br/rac/article/view/705
Resumo: Tolerance to low temperatures in the germinaton stage of rice cultvars is an effectve control method for avoiding the damage caused by this phenomenon of abiotc and unpredictable nature. This study was carried out to evaluate the efciency of induced mutaton in the generaton of genetc variability for cold tolerance at the germinaton stage. M2 seed families were treated with gamma rays and subjected to low temperature for 28 days. The respectve lines and cultvars untreated with gamma rays were used for comparison to certfy the presence of genetc variability in M2 families. Great amount of variability for germinaton rate was observed in all M2 families, as well as for length of the coleoptle and radicle. M2 populatons of SC 319, SC 333, SC 342, SC 213, Epagri 106, Epagri 107, Epagri 108 and Epagri 109 presented higher tolerance to low temperatures than the untreated line and cultvars. It was possible to select rice plants with tolerance to low temperatures during germinaton. It can be concluded that the induced mutaton is effectve in generatng variability for this feature.
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spelling Induced mutaton as a source of variability for cold tolerance of irrigated rice at the germinaton stageMutação induzida como fonte de variabilidade para tolerância a temperaturas baixas no estádio de germinação em arroz irrigadoOryza satvagamma raysselectonOryza sativaraios gamaseleçãoTolerance to low temperatures in the germinaton stage of rice cultvars is an effectve control method for avoiding the damage caused by this phenomenon of abiotc and unpredictable nature. This study was carried out to evaluate the efciency of induced mutaton in the generaton of genetc variability for cold tolerance at the germinaton stage. M2 seed families were treated with gamma rays and subjected to low temperature for 28 days. The respectve lines and cultvars untreated with gamma rays were used for comparison to certfy the presence of genetc variability in M2 families. Great amount of variability for germinaton rate was observed in all M2 families, as well as for length of the coleoptle and radicle. M2 populatons of SC 319, SC 333, SC 342, SC 213, Epagri 106, Epagri 107, Epagri 108 and Epagri 109 presented higher tolerance to low temperatures than the untreated line and cultvars. It was possible to select rice plants with tolerance to low temperatures during germinaton. It can be concluded that the induced mutaton is effectve in generatng variability for this feature. A tolerância a temperaturas baixas no estádio de germinação em cultvares de arroz irrigado é um método de controle efciente para evitar os danos causados por este fenômeno de natureza abiótca e imprevisível. O objetvo deste trabalho foi avaliar a efciência da mutação induzida na geração de variabilidade genétca para tolerância a temperaturas baixasno estádio de germinação. Sementes de populações M2 foram tratadas com raios gama e submetidas a temperatura de 14°C durante 28 dias. As respectivas linhagens e cultivares não tratados com raios gama serviram de comparação para certificação da presença de variabilidade genétca nas populações M2. Houve grande variabilidade genétca em todas as populações M2 para taxa de germinação, comprimento de coleóptilo e radícula. Populações M2 de SC 319, SC 333, SC 342, SC 213, Epagri 106,Epagri 107, Epagri 108 e Epagri 109 apresentaram maior tolerância à temperatura baixa do que as respectivas linhagens e cultivares não tratadas. A mutação induzida é efciente na geração de variabilidade genétca para tolerância a temperaturas baixas na germinação do arroz. Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2020-04-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/705Agropecuária Catarinense Journal; Vol. 24 No. 3 (2011); 75-79Agropecuária Catarinense; v. 24 n. 3 (2011); 75-792525-60760103-0779reponame:Agropecuária Catarinense (Online)instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)instacron:EPAGRIporhttps://publicacoes.epagri.sc.gov.br/rac/article/view/705/605Copyright (c) 2020 Revista Agropecuária Catarinenseinfo:eu-repo/semantics/openAccessRaimondi, Juliana Vieirada Rocha, FabianeMarschalek, RubensTullmann Neto, Augusto2021-02-17T14:36:45Zoai:ojs.publicacoes.epagri.sc.gov.br:article/705Revistahttps://publicacoes.epagri.sc.gov.br/RAC/indexPUBhttps://publicacoes.epagri.sc.gov.br/index.php/RAC/oaieditoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br2525-60760103-0779opendoar:2021-02-17T14:36:45Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false
dc.title.none.fl_str_mv Induced mutaton as a source of variability for cold tolerance of irrigated rice at the germinaton stage
Mutação induzida como fonte de variabilidade para tolerância a temperaturas baixas no estádio de germinação em arroz irrigado
title Induced mutaton as a source of variability for cold tolerance of irrigated rice at the germinaton stage
spellingShingle Induced mutaton as a source of variability for cold tolerance of irrigated rice at the germinaton stage
Raimondi, Juliana Vieira
Oryza satva
gamma rays
selecton
Oryza sativa
raios gama
seleção
title_short Induced mutaton as a source of variability for cold tolerance of irrigated rice at the germinaton stage
title_full Induced mutaton as a source of variability for cold tolerance of irrigated rice at the germinaton stage
title_fullStr Induced mutaton as a source of variability for cold tolerance of irrigated rice at the germinaton stage
title_full_unstemmed Induced mutaton as a source of variability for cold tolerance of irrigated rice at the germinaton stage
title_sort Induced mutaton as a source of variability for cold tolerance of irrigated rice at the germinaton stage
author Raimondi, Juliana Vieira
author_facet Raimondi, Juliana Vieira
da Rocha, Fabiane
Marschalek, Rubens
Tullmann Neto, Augusto
author_role author
author2 da Rocha, Fabiane
Marschalek, Rubens
Tullmann Neto, Augusto
author2_role author
author
author
dc.contributor.author.fl_str_mv Raimondi, Juliana Vieira
da Rocha, Fabiane
Marschalek, Rubens
Tullmann Neto, Augusto
dc.subject.por.fl_str_mv Oryza satva
gamma rays
selecton
Oryza sativa
raios gama
seleção
topic Oryza satva
gamma rays
selecton
Oryza sativa
raios gama
seleção
description Tolerance to low temperatures in the germinaton stage of rice cultvars is an effectve control method for avoiding the damage caused by this phenomenon of abiotc and unpredictable nature. This study was carried out to evaluate the efciency of induced mutaton in the generaton of genetc variability for cold tolerance at the germinaton stage. M2 seed families were treated with gamma rays and subjected to low temperature for 28 days. The respectve lines and cultvars untreated with gamma rays were used for comparison to certfy the presence of genetc variability in M2 families. Great amount of variability for germinaton rate was observed in all M2 families, as well as for length of the coleoptle and radicle. M2 populatons of SC 319, SC 333, SC 342, SC 213, Epagri 106, Epagri 107, Epagri 108 and Epagri 109 presented higher tolerance to low temperatures than the untreated line and cultvars. It was possible to select rice plants with tolerance to low temperatures during germinaton. It can be concluded that the induced mutaton is effectve in generatng variability for this feature.
publishDate 2020
dc.date.none.fl_str_mv 2020-04-28
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://publicacoes.epagri.sc.gov.br/rac/article/view/705
url https://publicacoes.epagri.sc.gov.br/rac/article/view/705
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/705/605
dc.rights.driver.fl_str_mv Copyright (c) 2020 Revista Agropecuária Catarinense
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Revista Agropecuária Catarinense
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
dc.source.none.fl_str_mv Agropecuária Catarinense Journal; Vol. 24 No. 3 (2011); 75-79
Agropecuária Catarinense; v. 24 n. 3 (2011); 75-79
2525-6076
0103-0779
reponame:Agropecuária Catarinense (Online)
instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron:EPAGRI
instname_str Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron_str EPAGRI
institution EPAGRI
reponame_str Agropecuária Catarinense (Online)
collection Agropecuária Catarinense (Online)
repository.name.fl_str_mv Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
repository.mail.fl_str_mv editoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br
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