Development of Oryzophagus oryzae (Costa Lima) in rice cultivars
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/53397 |
Resumo: | Insect-resistant cultivars are essential for improving the management of pests such as Oryzophagus oryzae (Coleoptera: Curculionidae), which significantly decreases flooded rice yields. However, the degree of benefit brought to the crop varies with the type of resistance. This study aimed to evaluate the resistance of rice cultivars to O. oryzae, inferring about antixenosis and antibiosis effects on the development of larvae and adults. Under natural infestation conditions, a biennial experiment was carried out using a latin square design, with six treatments (cultivars) and plots with 30 plants (five rows of six plants equidistant 20 cm) irrigated with water depth of 15 cm. The number and weight of larvae by size, as well as the number, weight, emergence rate, and sex ratio of adults, were evaluated using standard soil, plant and root samples. Except for adult sexual ratio, the cultivars differed (p ? 0.05) for the other variables, whose relationship evidenced antibiosis effects at the larval stage, making possible to conclude that: the BRS Firmeza cultivar has resistance to O. oryzae due to antixenosis and/or antibiosis effects; BRS Ligeirinho is susceptible to this insect species, resulting in a relatively higher number of well-developed larvae and adults; and IRGA 417 shows an antibiosis action, restricting the adult emergence rates. The weight of adults gives a greater accuracy to the evaluation of the harmful effects of rice cultivars on the O. oryzae development. KEYWORDS: Oryza sativa, rice water weevil, integrated pest management. |
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Development of Oryzophagus oryzae (Costa Lima) in rice cultivarsDesenvolvimento de Oryzophagus oryzae (Costa Lima) em cultivares de arrozInsect-resistant cultivars are essential for improving the management of pests such as Oryzophagus oryzae (Coleoptera: Curculionidae), which significantly decreases flooded rice yields. However, the degree of benefit brought to the crop varies with the type of resistance. This study aimed to evaluate the resistance of rice cultivars to O. oryzae, inferring about antixenosis and antibiosis effects on the development of larvae and adults. Under natural infestation conditions, a biennial experiment was carried out using a latin square design, with six treatments (cultivars) and plots with 30 plants (five rows of six plants equidistant 20 cm) irrigated with water depth of 15 cm. The number and weight of larvae by size, as well as the number, weight, emergence rate, and sex ratio of adults, were evaluated using standard soil, plant and root samples. Except for adult sexual ratio, the cultivars differed (p ? 0.05) for the other variables, whose relationship evidenced antibiosis effects at the larval stage, making possible to conclude that: the BRS Firmeza cultivar has resistance to O. oryzae due to antixenosis and/or antibiosis effects; BRS Ligeirinho is susceptible to this insect species, resulting in a relatively higher number of well-developed larvae and adults; and IRGA 417 shows an antibiosis action, restricting the adult emergence rates. The weight of adults gives a greater accuracy to the evaluation of the harmful effects of rice cultivars on the O. oryzae development. KEYWORDS: Oryza sativa, rice water weevil, integrated pest management.Cultivares resistentes a insetos são essenciais à melhoria do manejo de pragas como Oryzophagus oryzae (Coleoptera: Curculionidae), altamente prejudicial à cultura do arroz irrigado por inundação. O grau de benefício, porém, depende do tipo de resistência. Objetivou-se avaliar cultivares de arroz quanto à resistência a O. oryzae, inferindo sobre efeitos de antixenose e antibiose no desenvolvimento de larvas e adultos. Em condições naturais de infestação, instalou-se um experimento bienal em delineamento de quadrado latino, com seis tratamentos (cultivares) e parcelas de 30 plantas (cinco linhas de seis plantas equidistantes 20 cm) irrigadas com lâmina de água de 15 cm. Por meio de amostras-padrão de solo, plantas e raízes, foram avaliados o número e peso de larvas por classe de tamanho, bem como o número, peso, taxa de emergência e razão sexual de adultos. Exceto para a razão sexual, as cultivares diferiram (p ? 0,05) quanto às demais variáveis, cuja relação evidenciou efeitos de antibiose à fase larval e possibilitou concluir que: a cultivar BRS Firmeza possui resistência a O. oryzae por efeitos de antixenose e/ou antibiose; BRS Ligeirinho é suscetível, abrigando alta população larval e propiciando melhor desenvolvimento de larvas e adultos; e IRGA 417 possui resistência do tipo antibiose, que restringe a taxa de emergência de adultos. O peso de adultos atribui maior precisão à avaliação de efeitos prejudiciais de cultivares de arroz ao desenvolvimento de O. oryzae. PALAVRAS-CHAVE: Oryza sativa, gorgulho-aquático, manejo integrado de pragas.Escola de Agronomia - Universidade Federal de Goiás2019-06-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/53397Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 49 (2019); e53397Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 49 (2019); e53397Pesquisa Agropecuária Tropical; v. 49 (2019); e533971983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/53397/33287Barcellos de Lima, Crislaineda Silva, Fernando FelisbertoGrützmacher, Anderson Dioneide Bastos Pazini, JulianoSchneid Afonso da Rosa, Ana Paulada Silva Martins, José Franciscoinfo:eu-repo/semantics/openAccess2020-03-02T14:06:13Zoai:ojs.revistas.ufg.br:article/53397Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:22.608232Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Development of Oryzophagus oryzae (Costa Lima) in rice cultivars Desenvolvimento de Oryzophagus oryzae (Costa Lima) em cultivares de arroz |
title |
Development of Oryzophagus oryzae (Costa Lima) in rice cultivars |
spellingShingle |
Development of Oryzophagus oryzae (Costa Lima) in rice cultivars Barcellos de Lima, Crislaine |
title_short |
Development of Oryzophagus oryzae (Costa Lima) in rice cultivars |
title_full |
Development of Oryzophagus oryzae (Costa Lima) in rice cultivars |
title_fullStr |
Development of Oryzophagus oryzae (Costa Lima) in rice cultivars |
title_full_unstemmed |
Development of Oryzophagus oryzae (Costa Lima) in rice cultivars |
title_sort |
Development of Oryzophagus oryzae (Costa Lima) in rice cultivars |
author |
Barcellos de Lima, Crislaine |
author_facet |
Barcellos de Lima, Crislaine da Silva, Fernando Felisberto Grützmacher, Anderson Dionei de Bastos Pazini, Juliano Schneid Afonso da Rosa, Ana Paula da Silva Martins, José Francisco |
author_role |
author |
author2 |
da Silva, Fernando Felisberto Grützmacher, Anderson Dionei de Bastos Pazini, Juliano Schneid Afonso da Rosa, Ana Paula da Silva Martins, José Francisco |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Barcellos de Lima, Crislaine da Silva, Fernando Felisberto Grützmacher, Anderson Dionei de Bastos Pazini, Juliano Schneid Afonso da Rosa, Ana Paula da Silva Martins, José Francisco |
description |
Insect-resistant cultivars are essential for improving the management of pests such as Oryzophagus oryzae (Coleoptera: Curculionidae), which significantly decreases flooded rice yields. However, the degree of benefit brought to the crop varies with the type of resistance. This study aimed to evaluate the resistance of rice cultivars to O. oryzae, inferring about antixenosis and antibiosis effects on the development of larvae and adults. Under natural infestation conditions, a biennial experiment was carried out using a latin square design, with six treatments (cultivars) and plots with 30 plants (five rows of six plants equidistant 20 cm) irrigated with water depth of 15 cm. The number and weight of larvae by size, as well as the number, weight, emergence rate, and sex ratio of adults, were evaluated using standard soil, plant and root samples. Except for adult sexual ratio, the cultivars differed (p ? 0.05) for the other variables, whose relationship evidenced antibiosis effects at the larval stage, making possible to conclude that: the BRS Firmeza cultivar has resistance to O. oryzae due to antixenosis and/or antibiosis effects; BRS Ligeirinho is susceptible to this insect species, resulting in a relatively higher number of well-developed larvae and adults; and IRGA 417 shows an antibiosis action, restricting the adult emergence rates. The weight of adults gives a greater accuracy to the evaluation of the harmful effects of rice cultivars on the O. oryzae development. KEYWORDS: Oryza sativa, rice water weevil, integrated pest management. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-06-25 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/53397 |
url |
https://revistas.ufg.br/pat/article/view/53397 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/53397/33287 |
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 |
Escola de Agronomia - Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 49 (2019); e53397 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 49 (2019); e53397 Pesquisa Agropecuária Tropical; v. 49 (2019); e53397 1983-4063 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
_version_ |
1799874820026925056 |