Relationship between mycelial inoculum of Sclerotinia sclerotiorum and performance of sunflower seeds under controlled conditions
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/26090 |
Resumo: | The cultivated area of sunflower in Brazil is expanding considerably over the last years as the result of the great interest in the biodiesel production derived from that crop. One consequence of that expansion is the occurrence of several diseases some of devastating nature in part of the growing areas with sunflower. This study evaluated the effects of the association of sunflower seeds infected by Sclerotinia sclerotiorum and the pathogen transmission rates from these infected seeds, considering some factors which may interfere in that interaction. Four inoculum potentials, two isolates of the cited fungus, two sunflower cultivars, 'Helio 250' and 'Helio 253' and two environmental temperatures, 20°C and 25°C, were used for the purpose in this work. Seed germination and health, emergence speed index, and plant populations were variables analyzed. From the results, increased levels of inoculum potentials led to gradual reduction of the mean values of germination, emergence rate index and plant populations, regardless the genotype, fungal isolates and temperatures. Transmission rates were higher at the highest levels of inoculum potential, the maximum reaching 80%. These results show the significance of S. sclerotiorum inoculum associated with sunflower seeds both in the establishment of plants in fields and also in spreading the pathogen inoculum between crop fields. |
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Relationship between mycelial inoculum of Sclerotinia sclerotiorum and performance of sunflower seeds under controlled conditions Helianthus annuusphysiologic conditioningtransmissiowhite moldAgricultural SciencesThe cultivated area of sunflower in Brazil is expanding considerably over the last years as the result of the great interest in the biodiesel production derived from that crop. One consequence of that expansion is the occurrence of several diseases some of devastating nature in part of the growing areas with sunflower. This study evaluated the effects of the association of sunflower seeds infected by Sclerotinia sclerotiorum and the pathogen transmission rates from these infected seeds, considering some factors which may interfere in that interaction. Four inoculum potentials, two isolates of the cited fungus, two sunflower cultivars, 'Helio 250' and 'Helio 253' and two environmental temperatures, 20°C and 25°C, were used for the purpose in this work. Seed germination and health, emergence speed index, and plant populations were variables analyzed. From the results, increased levels of inoculum potentials led to gradual reduction of the mean values of germination, emergence rate index and plant populations, regardless the genotype, fungal isolates and temperatures. Transmission rates were higher at the highest levels of inoculum potential, the maximum reaching 80%. These results show the significance of S. sclerotiorum inoculum associated with sunflower seeds both in the establishment of plants in fields and also in spreading the pathogen inoculum between crop fields. EDUFU2015-05-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/2609010.14393/BJ-v31n3a2015-26090Bioscience Journal ; Vol. 31 No. 3 (2015): May/June; 775-784Bioscience Journal ; v. 31 n. 3 (2015): May/June; 775-7841981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/26090/16463Brazil; ContemporaryCopyright (c) 2015 Willian Luis Antonio Zancan, José da Cruz Machado, Nayara Lima Baute, Bruno Figueiredo Moretti de Sousahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessZancan, Willian Luis AntonioMachado, José da CruzBaute, Nayara Limade Sousa, Bruno Figueiredo Moretti2022-05-26T13:23:51Zoai:ojs.www.seer.ufu.br:article/26090Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-05-26T13:23:51Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Relationship between mycelial inoculum of Sclerotinia sclerotiorum and performance of sunflower seeds under controlled conditions |
title |
Relationship between mycelial inoculum of Sclerotinia sclerotiorum and performance of sunflower seeds under controlled conditions |
spellingShingle |
Relationship between mycelial inoculum of Sclerotinia sclerotiorum and performance of sunflower seeds under controlled conditions Zancan, Willian Luis Antonio Helianthus annuus physiologic conditioning transmissio white mold Agricultural Sciences |
title_short |
Relationship between mycelial inoculum of Sclerotinia sclerotiorum and performance of sunflower seeds under controlled conditions |
title_full |
Relationship between mycelial inoculum of Sclerotinia sclerotiorum and performance of sunflower seeds under controlled conditions |
title_fullStr |
Relationship between mycelial inoculum of Sclerotinia sclerotiorum and performance of sunflower seeds under controlled conditions |
title_full_unstemmed |
Relationship between mycelial inoculum of Sclerotinia sclerotiorum and performance of sunflower seeds under controlled conditions |
title_sort |
Relationship between mycelial inoculum of Sclerotinia sclerotiorum and performance of sunflower seeds under controlled conditions |
author |
Zancan, Willian Luis Antonio |
author_facet |
Zancan, Willian Luis Antonio Machado, José da Cruz Baute, Nayara Lima de Sousa, Bruno Figueiredo Moretti |
author_role |
author |
author2 |
Machado, José da Cruz Baute, Nayara Lima de Sousa, Bruno Figueiredo Moretti |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Zancan, Willian Luis Antonio Machado, José da Cruz Baute, Nayara Lima de Sousa, Bruno Figueiredo Moretti |
dc.subject.por.fl_str_mv |
Helianthus annuus physiologic conditioning transmissio white mold Agricultural Sciences |
topic |
Helianthus annuus physiologic conditioning transmissio white mold Agricultural Sciences |
description |
The cultivated area of sunflower in Brazil is expanding considerably over the last years as the result of the great interest in the biodiesel production derived from that crop. One consequence of that expansion is the occurrence of several diseases some of devastating nature in part of the growing areas with sunflower. This study evaluated the effects of the association of sunflower seeds infected by Sclerotinia sclerotiorum and the pathogen transmission rates from these infected seeds, considering some factors which may interfere in that interaction. Four inoculum potentials, two isolates of the cited fungus, two sunflower cultivars, 'Helio 250' and 'Helio 253' and two environmental temperatures, 20°C and 25°C, were used for the purpose in this work. Seed germination and health, emergence speed index, and plant populations were variables analyzed. From the results, increased levels of inoculum potentials led to gradual reduction of the mean values of germination, emergence rate index and plant populations, regardless the genotype, fungal isolates and temperatures. Transmission rates were higher at the highest levels of inoculum potential, the maximum reaching 80%. These results show the significance of S. sclerotiorum inoculum associated with sunflower seeds both in the establishment of plants in fields and also in spreading the pathogen inoculum between crop fields. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-05-16 |
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://seer.ufu.br/index.php/biosciencejournal/article/view/26090 10.14393/BJ-v31n3a2015-26090 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/26090 |
identifier_str_mv |
10.14393/BJ-v31n3a2015-26090 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/26090/16463 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
EDUFU |
publisher.none.fl_str_mv |
EDUFU |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 31 No. 3 (2015): May/June; 775-784 Bioscience Journal ; v. 31 n. 3 (2015): May/June; 775-784 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069074806603776 |