Effects of Stenocarpella maydis in seeds and in the initial development of corn

Detalhes bibliográficos
Autor(a) principal: Siqueira, Carolina da Silva
Data de Publicação: 2014
Outros Autores: Barrocas, Ellen Noly, Machado, José da Cruz, Silva, Ursula Abreu da, Dias, Iara Eleutéria
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/38402
Resumo: The association of the fungus Stenocarpella maydis with corn seed may cause a reduction of seed germination and vigor of the emerged seedlings. This work was carried out in order to evaluate the effects of S. maydis on corn seed quality as well as on its early development. To evaluate such effects, seeds of cultivars RB9308YG (C1) and RB9108 (C2) were inoculated by the osmotic conditioner technique with two S. maydis isolates for 24(P1), 48(P2), 72(P3) and 96 hours (P4). Plants were grown in a room chamber at 20 °C and 25 °C and daily assessed until 28 days after emergence. Seed germination, incidence of S maydis, electrical conductivity, speed of emergence index (SEI), initial and final seedling population and dry weight of emerged plants, were assessed. The longer the exposition times of the seeds to the fungal colony, the more severe negative effects of the pathogens on seed vigor were observed. S. maydis caused reduced seed vigor in the speed of seedling emergence in the final stand and early development of corn seedlings.
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spelling Effects of Stenocarpella maydis in seeds and in the initial development of cornEfeitos de Stenocarpella maydis em sementes e na fase inicial de desenvolvimento do milhoSeed pathologySeed qualityEar and stalk rotPatologia de sementesQualidade fisiológica de sementesPodridão do colmo e da espigaThe association of the fungus Stenocarpella maydis with corn seed may cause a reduction of seed germination and vigor of the emerged seedlings. This work was carried out in order to evaluate the effects of S. maydis on corn seed quality as well as on its early development. To evaluate such effects, seeds of cultivars RB9308YG (C1) and RB9108 (C2) were inoculated by the osmotic conditioner technique with two S. maydis isolates for 24(P1), 48(P2), 72(P3) and 96 hours (P4). Plants were grown in a room chamber at 20 °C and 25 °C and daily assessed until 28 days after emergence. Seed germination, incidence of S maydis, electrical conductivity, speed of emergence index (SEI), initial and final seedling population and dry weight of emerged plants, were assessed. The longer the exposition times of the seeds to the fungal colony, the more severe negative effects of the pathogens on seed vigor were observed. S. maydis caused reduced seed vigor in the speed of seedling emergence in the final stand and early development of corn seedlings.A associação do fungo Stenocarpella maydis com sementes de milho pode comprometer a germinação de sementes e o vigor das plântulas. Este trabalho foi realizado com o objetivo de avaliar os efeitos causados por S. maydis sobre a qualidade das sementes de milho bem como no seu desenvolvimento inicial. Para avaliar tais efeitos, sementes de milho cultivares RB9308YG (C1) e RB9108 (C2), foram inoculadas com dois isolados de S. maydis, pelo método de condicionamento osmótico por 24(P1), 48(P2), 72(P3) e 96 horas (P4). O cultivo foi realizado em câmara de crescimento vegetal, sob temperaturas de 20 °C e 25 °C e avaliadas diariamente até 28 dias após a emergência. Avaliou-se a germinação, incidência do fungo, condutividade elétrica, índice de velocidade de emergência (IVE), estande inicial e final e peso de matéria seca. Foi observado que, quanto maior o tempo de exposição das sementes à colônia fúngica, maiores foram os efeitos negativos destes organismos em sementes e plântulas. S. maydis causou redução no vigor das sementes, na velocidade de emergência das plântulas, no estande final e no desenvolvimento inicial das plântulas de milho.Associação Brasileira de Tecnologia de Sementes (ABRATES)2020-01-06T12:40:27Z2020-01-06T12:40:27Z2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSIQUEIRA, C. da S. et al. Effects of Stenocarpella maydis in seeds and in the initial development of corn. Journal of Seed Science, Londrina, v. 36, n. 1, p. 79-86, 2014.http://repositorio.ufla.br/jspui/handle/1/38402Journal of Seed Sciencereponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessSiqueira, Carolina da SilvaBarrocas, Ellen NolyMachado, José da CruzSilva, Ursula Abreu daDias, Iara Eleutériaeng2023-05-26T19:56:23Zoai:localhost:1/38402Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T19:56:23Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Effects of Stenocarpella maydis in seeds and in the initial development of corn
Efeitos de Stenocarpella maydis em sementes e na fase inicial de desenvolvimento do milho
title Effects of Stenocarpella maydis in seeds and in the initial development of corn
spellingShingle Effects of Stenocarpella maydis in seeds and in the initial development of corn
Siqueira, Carolina da Silva
Seed pathology
Seed quality
Ear and stalk rot
Patologia de sementes
Qualidade fisiológica de sementes
Podridão do colmo e da espiga
title_short Effects of Stenocarpella maydis in seeds and in the initial development of corn
title_full Effects of Stenocarpella maydis in seeds and in the initial development of corn
title_fullStr Effects of Stenocarpella maydis in seeds and in the initial development of corn
title_full_unstemmed Effects of Stenocarpella maydis in seeds and in the initial development of corn
title_sort Effects of Stenocarpella maydis in seeds and in the initial development of corn
author Siqueira, Carolina da Silva
author_facet Siqueira, Carolina da Silva
Barrocas, Ellen Noly
Machado, José da Cruz
Silva, Ursula Abreu da
Dias, Iara Eleutéria
author_role author
author2 Barrocas, Ellen Noly
Machado, José da Cruz
Silva, Ursula Abreu da
Dias, Iara Eleutéria
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Siqueira, Carolina da Silva
Barrocas, Ellen Noly
Machado, José da Cruz
Silva, Ursula Abreu da
Dias, Iara Eleutéria
dc.subject.por.fl_str_mv Seed pathology
Seed quality
Ear and stalk rot
Patologia de sementes
Qualidade fisiológica de sementes
Podridão do colmo e da espiga
topic Seed pathology
Seed quality
Ear and stalk rot
Patologia de sementes
Qualidade fisiológica de sementes
Podridão do colmo e da espiga
description The association of the fungus Stenocarpella maydis with corn seed may cause a reduction of seed germination and vigor of the emerged seedlings. This work was carried out in order to evaluate the effects of S. maydis on corn seed quality as well as on its early development. To evaluate such effects, seeds of cultivars RB9308YG (C1) and RB9108 (C2) were inoculated by the osmotic conditioner technique with two S. maydis isolates for 24(P1), 48(P2), 72(P3) and 96 hours (P4). Plants were grown in a room chamber at 20 °C and 25 °C and daily assessed until 28 days after emergence. Seed germination, incidence of S maydis, electrical conductivity, speed of emergence index (SEI), initial and final seedling population and dry weight of emerged plants, were assessed. The longer the exposition times of the seeds to the fungal colony, the more severe negative effects of the pathogens on seed vigor were observed. S. maydis caused reduced seed vigor in the speed of seedling emergence in the final stand and early development of corn seedlings.
publishDate 2014
dc.date.none.fl_str_mv 2014
2020-01-06T12:40:27Z
2020-01-06T12:40:27Z
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 SIQUEIRA, C. da S. et al. Effects of Stenocarpella maydis in seeds and in the initial development of corn. Journal of Seed Science, Londrina, v. 36, n. 1, p. 79-86, 2014.
http://repositorio.ufla.br/jspui/handle/1/38402
identifier_str_mv SIQUEIRA, C. da S. et al. Effects of Stenocarpella maydis in seeds and in the initial development of corn. Journal of Seed Science, Londrina, v. 36, n. 1, p. 79-86, 2014.
url http://repositorio.ufla.br/jspui/handle/1/38402
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
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 Associação Brasileira de Tecnologia de Sementes (ABRATES)
publisher.none.fl_str_mv Associação Brasileira de Tecnologia de Sementes (ABRATES)
dc.source.none.fl_str_mv Journal of Seed Science
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1815439318109388800

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