Reaction of corn genotypes to parasitism from Meloidogyne incognita breed 1 and M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/761 |
Resumo: | The use of corn hybrids and genotypes resistant to root-knot nematodes in crop rotation systems reduce the population of nematodes, preventing losses and allowing for the use of more susceptible genotypes. In this study, the resistance of eighteen hybrids of corn to parasitism of Meloidogyne paranaensis and M. incognita breed 1 were evaluated in a greenhouse. The plants were inoculated with 5,000 eggs and possible juveniles of each nematode in a completely randomized design, using ten replicates for each treatment with nematodes, and five replicates for the treatment without inoculation (control). The root staining technique using acid fuchsin was also applied, according to Byrd et al. (1972). Sixty days after the inoculation, the roots systems were collected, washed and evaluated for penetration, egg production and estimated reproduction factor (RF). The results showed that, for M. paranaensis, the RF varied from 0.01 to 0.08, while for M. incognita the variation was from 0.01 to 0.03, showing that all corn genotypes were resistant, presenting a RF < 1. |
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Reaction of corn genotypes to parasitism from Meloidogyne incognita breed 1 and M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761Reação de genótipos de milho ao parasitismo de Meloidogyne incógnita raça 1 e a M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761Zea maynematoderesistancegenotypeZea mayznematóideresistênciagenótipoThe use of corn hybrids and genotypes resistant to root-knot nematodes in crop rotation systems reduce the population of nematodes, preventing losses and allowing for the use of more susceptible genotypes. In this study, the resistance of eighteen hybrids of corn to parasitism of Meloidogyne paranaensis and M. incognita breed 1 were evaluated in a greenhouse. The plants were inoculated with 5,000 eggs and possible juveniles of each nematode in a completely randomized design, using ten replicates for each treatment with nematodes, and five replicates for the treatment without inoculation (control). The root staining technique using acid fuchsin was also applied, according to Byrd et al. (1972). Sixty days after the inoculation, the roots systems were collected, washed and evaluated for penetration, egg production and estimated reproduction factor (RF). The results showed that, for M. paranaensis, the RF varied from 0.01 to 0.08, while for M. incognita the variation was from 0.01 to 0.03, showing that all corn genotypes were resistant, presenting a RF < 1.O uso de híbridos e genótipos de milho resistentes aos nematóides formadores de galhas em sistemas de rotação de culturas mantém sua população em níveis baixos, diminuindo as perdas e possibilitando, posteriormente, o uso de genótipos mais suscetíveis. No presente trabalho, foi avaliada a resistência de 18 genótipos de milho ao parasitismo de M. paranaensis e a M. incógnita raça 1 em casa-de-vegetação. As plantas foram inoculadas com 5.000 ovos e eventuais juvenis dos respectivos nematóides. O delineamento utilizado foi inteiramente ao acaso, com dez repetições para cada tratamento com os nematóides e cinco repetições para a testemunha sem inoculação. Também foi realizada a técnica de coloração das raízes com fucsina ácida, pelo método de Byrd et al. (1972). Sessenta dias após a inoculação, os sistemas radiculares foram coletados, lavados e avaliados quanto à penetração, produção de ovos e estimativa do Fator de Reprodução (FR). Os resultados mostraram que, para M. paranaensis, o FR variou de 0,01 a 0,08; para M. incógnita, a variação foi de 0,01 a 0,03, mostrando que todos os genótipos se comportaram como resistentes, apresentando FR < 1.Universidade Estadual de Maringá2009-08-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/76110.4025/actasciagron.v31i4.761Acta Scientiarum. Agronomy; Vol 31 No 4 (2009); 575-578Acta Scientiarum. Agronomy; v. 31 n. 4 (2009); 575-5781807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/761/761Levy, Ricardo MichaelHomechin, MartinSantiago, Débora CristinaCadioli, Marina CapparelliBaida, Fernando Césarinfo:eu-repo/semantics/openAccess2022-11-23T18:37:12Zoai:periodicos.uem.br/ojs:article/761Revistahttp://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:2022-11-23T18:37:12Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Reaction of corn genotypes to parasitism from Meloidogyne incognita breed 1 and M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761 Reação de genótipos de milho ao parasitismo de Meloidogyne incógnita raça 1 e a M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761 |
title |
Reaction of corn genotypes to parasitism from Meloidogyne incognita breed 1 and M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761 |
spellingShingle |
Reaction of corn genotypes to parasitism from Meloidogyne incognita breed 1 and M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761 Levy, Ricardo Michael Zea may nematode resistance genotype Zea mayz nematóide resistência genótipo |
title_short |
Reaction of corn genotypes to parasitism from Meloidogyne incognita breed 1 and M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761 |
title_full |
Reaction of corn genotypes to parasitism from Meloidogyne incognita breed 1 and M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761 |
title_fullStr |
Reaction of corn genotypes to parasitism from Meloidogyne incognita breed 1 and M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761 |
title_full_unstemmed |
Reaction of corn genotypes to parasitism from Meloidogyne incognita breed 1 and M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761 |
title_sort |
Reaction of corn genotypes to parasitism from Meloidogyne incognita breed 1 and M. paranaensis - DOI: 10.4025/actasciagron.v31i4.761 |
author |
Levy, Ricardo Michael |
author_facet |
Levy, Ricardo Michael Homechin, Martin Santiago, Débora Cristina Cadioli, Marina Capparelli Baida, Fernando César |
author_role |
author |
author2 |
Homechin, Martin Santiago, Débora Cristina Cadioli, Marina Capparelli Baida, Fernando César |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Levy, Ricardo Michael Homechin, Martin Santiago, Débora Cristina Cadioli, Marina Capparelli Baida, Fernando César |
dc.subject.por.fl_str_mv |
Zea may nematode resistance genotype Zea mayz nematóide resistência genótipo |
topic |
Zea may nematode resistance genotype Zea mayz nematóide resistência genótipo |
description |
The use of corn hybrids and genotypes resistant to root-knot nematodes in crop rotation systems reduce the population of nematodes, preventing losses and allowing for the use of more susceptible genotypes. In this study, the resistance of eighteen hybrids of corn to parasitism of Meloidogyne paranaensis and M. incognita breed 1 were evaluated in a greenhouse. The plants were inoculated with 5,000 eggs and possible juveniles of each nematode in a completely randomized design, using ten replicates for each treatment with nematodes, and five replicates for the treatment without inoculation (control). The root staining technique using acid fuchsin was also applied, according to Byrd et al. (1972). Sixty days after the inoculation, the roots systems were collected, washed and evaluated for penetration, egg production and estimated reproduction factor (RF). The results showed that, for M. paranaensis, the RF varied from 0.01 to 0.08, while for M. incognita the variation was from 0.01 to 0.03, showing that all corn genotypes were resistant, presenting a RF < 1. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-08-28 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/761 10.4025/actasciagron.v31i4.761 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/761 |
identifier_str_mv |
10.4025/actasciagron.v31i4.761 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/761/761 |
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 31 No 4 (2009); 575-578 Acta Scientiarum. Agronomy; v. 31 n. 4 (2009); 575-578 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_ |
1799305902758559744 |