Morphological and chemical characteristics of onion plants (Allium cepa L.) associated with resistance to onion thrips
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17436 |
Resumo: | Thrips tabaci Lindeman is the main pest of onion crops, and chemical control is the main method adopted by farmers. Alternative control methods should be prioritised to reduce the amount of insecticides used. Resistant cultivars are one efficient way to control thrips in the field. Our aim was to assess the influence of morphological and chemical characteristics of seven onion cultivars and their resistance to T. tabaci. The number of thrips and the morphological and chemical characteristics of the plants were assessed. Among the evaluated cultivars, Alfa São Francisco RT, BR 29 and Sirius showed resistance to T. tabaci, as indicated by the lower number of thrips observed during the cycle (64, 87, and 74 thrips, respectively). Morphological and chemical characteristics were associated with onion’s resistance to T. tabaci. For the cultivar Alfa São Francisco RT, a wider central angle (16.4°), a thinner cuticle, a larger amount of epicuticular waxes, and stomata on the surface of leaves accounted for resistance. For the cultivars BR 29 and Sirius, the resistance was likely due to the presence of resistance-conferring substances or high amounts of some component in the chemical composition of plants. |
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Acta Scientiarum. Agronomy (Online) |
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Morphological and chemical characteristics of onion plants (Allium cepa L.) associated with resistance to onion thripsThrips tabaciThysanopteraThripidaeonionplant resistance to insectsEntomologia AgrícolaThrips tabaci Lindeman is the main pest of onion crops, and chemical control is the main method adopted by farmers. Alternative control methods should be prioritised to reduce the amount of insecticides used. Resistant cultivars are one efficient way to control thrips in the field. Our aim was to assess the influence of morphological and chemical characteristics of seven onion cultivars and their resistance to T. tabaci. The number of thrips and the morphological and chemical characteristics of the plants were assessed. Among the evaluated cultivars, Alfa São Francisco RT, BR 29 and Sirius showed resistance to T. tabaci, as indicated by the lower number of thrips observed during the cycle (64, 87, and 74 thrips, respectively). Morphological and chemical characteristics were associated with onion’s resistance to T. tabaci. For the cultivar Alfa São Francisco RT, a wider central angle (16.4°), a thinner cuticle, a larger amount of epicuticular waxes, and stomata on the surface of leaves accounted for resistance. For the cultivars BR 29 and Sirius, the resistance was likely due to the presence of resistance-conferring substances or high amounts of some component in the chemical composition of plants. Universidade Estadual de Maringá2014-11-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1743610.4025/actasciagron.v37i1.17436Acta Scientiarum. Agronomy; Vol 37 No 1 (2015); 85-92Acta Scientiarum. Agronomy; v. 37 n. 1 (2015); 85-921807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17436/pdf_56Silva, Vitor Cezar Pacheco daBettoni, Marcelle MichelottiBona, CleusaFoerster, Luís Amiltoninfo:eu-repo/semantics/openAccess2015-01-15T15:03:22Zoai:periodicos.uem.br/ojs:article/17436Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2015-01-15T15:03:22Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Morphological and chemical characteristics of onion plants (Allium cepa L.) associated with resistance to onion thrips |
title |
Morphological and chemical characteristics of onion plants (Allium cepa L.) associated with resistance to onion thrips |
spellingShingle |
Morphological and chemical characteristics of onion plants (Allium cepa L.) associated with resistance to onion thrips Silva, Vitor Cezar Pacheco da Thrips tabaci Thysanoptera Thripidae onion plant resistance to insects Entomologia Agrícola |
title_short |
Morphological and chemical characteristics of onion plants (Allium cepa L.) associated with resistance to onion thrips |
title_full |
Morphological and chemical characteristics of onion plants (Allium cepa L.) associated with resistance to onion thrips |
title_fullStr |
Morphological and chemical characteristics of onion plants (Allium cepa L.) associated with resistance to onion thrips |
title_full_unstemmed |
Morphological and chemical characteristics of onion plants (Allium cepa L.) associated with resistance to onion thrips |
title_sort |
Morphological and chemical characteristics of onion plants (Allium cepa L.) associated with resistance to onion thrips |
author |
Silva, Vitor Cezar Pacheco da |
author_facet |
Silva, Vitor Cezar Pacheco da Bettoni, Marcelle Michelotti Bona, Cleusa Foerster, Luís Amilton |
author_role |
author |
author2 |
Bettoni, Marcelle Michelotti Bona, Cleusa Foerster, Luís Amilton |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Silva, Vitor Cezar Pacheco da Bettoni, Marcelle Michelotti Bona, Cleusa Foerster, Luís Amilton |
dc.subject.por.fl_str_mv |
Thrips tabaci Thysanoptera Thripidae onion plant resistance to insects Entomologia Agrícola |
topic |
Thrips tabaci Thysanoptera Thripidae onion plant resistance to insects Entomologia Agrícola |
description |
Thrips tabaci Lindeman is the main pest of onion crops, and chemical control is the main method adopted by farmers. Alternative control methods should be prioritised to reduce the amount of insecticides used. Resistant cultivars are one efficient way to control thrips in the field. Our aim was to assess the influence of morphological and chemical characteristics of seven onion cultivars and their resistance to T. tabaci. The number of thrips and the morphological and chemical characteristics of the plants were assessed. Among the evaluated cultivars, Alfa São Francisco RT, BR 29 and Sirius showed resistance to T. tabaci, as indicated by the lower number of thrips observed during the cycle (64, 87, and 74 thrips, respectively). Morphological and chemical characteristics were associated with onion’s resistance to T. tabaci. For the cultivar Alfa São Francisco RT, a wider central angle (16.4°), a thinner cuticle, a larger amount of epicuticular waxes, and stomata on the surface of leaves accounted for resistance. For the cultivars BR 29 and Sirius, the resistance was likely due to the presence of resistance-conferring substances or high amounts of some component in the chemical composition of plants. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-11-25 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17436 10.4025/actasciagron.v37i1.17436 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17436 |
identifier_str_mv |
10.4025/actasciagron.v37i1.17436 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17436/pdf_56 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 37 No 1 (2015); 85-92 Acta Scientiarum. Agronomy; v. 37 n. 1 (2015); 85-92 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1799305908800454656 |