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| 1. |  | OLIVEIRA, A. E. de S.; MONTALVÁN, A. R. Produtividade de genótipos de soja sob três épocas de semeadura no nordeste maranhense. In: CONGRESSO BRASILEIRO DE SOJA, 5., 2009; MERCOSOJA, 2009, Goiânia. Resumos... Londrina: Embrapa Soja, 2009. p. 221, trab. 402. Editado por Adilson de Oliveira Júnior, Odilon Ferreira Saraiva, Clara Beatriz Hoffmann Campo, César de Castro. Trabalho publicado também em 1 CD-ROM em Resumos Expandidos do CONGRESSO BRASILEIRO DE SOJA, 5., 2009; MERCOSOJA, 2009, Goiânia. Autoria: MONTALVÁN, A. [i.e. MONTALVÁN DEL ÁGUILA], R.| Biblioteca(s): Embrapa Meio-Norte. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
29/02/2016 |
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Data da última atualização: |
13/01/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
CRUZ, L. P.; SÁ, L. F. R. de; SANTOS, L. A.; GRAVINA, G. A.; CARVALHO, A. O.; FERNANDES, K. V. S.; FREIRE FILHO, F. R.; GOMES, V. M.; OLIVEIRA, A. E. A. |
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Afiliação: |
Luana P. Cruz, Universidade Estadual do Norte Fluminense Darcy Ribeiro; Leonardo F. R. de Sá, Universidade Estadual do Norte Fluminense Darcy Ribeiro; Layrana A. Santos, Universidade Estadual do Norte Fluminense Darcy Ribeiro; Geraldo A. Gravina, Universidade Estadual do Norte Fluminense Darcy Ribeiro; André O. Carvalho, Universidade Estadual do Norte Fluminense Darcy Ribeiro; Kátia Valevski S. Fernandes, Universidade Estadual do Norte Fluminense Darcy Ribeiro; FRANCISCO RODRIGUES FREIRE FILHO, CPATU; Valdirene M. Gomes, Universidade Estadual do Norte Fluminense Darcy Ribeiro; Antonia Elenir A. Oliveira, Universidade Estadual do Norte Fluminense Darcy Ribeiro. |
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Título: |
Evaluation of resistance in different cowpea cultivars to Callosobruchus maculatus infestation. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of Pest Science, v. 89, n. 1, p. 117-128, Mar. 2016. |
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DOI: |
10.1007/s10340-015-0657-z |
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Idioma: |
Inglês |
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Conteúdo: |
Cowpea [Vigna unguiculata (L.) Walp] seeds are an important source of nutrients for human and animal. However, part of the seed production is lost due to insect attacks, mainly by the weevil Callosobruchus maculatus (F.) (Coleoptera: Chrysomelidae), a major pest of stored cowpeas. An efficient method for controlling seed infestation is the use of insect-resistant cultivars. In this work, we studied the resistance of different cowpea Brazilian cultivars (BRS) to infestation and damage by C. maculatus. Our results showed that some cultivars interfered in female oviposition. The time necessary for the larvae to perforate the seed coat of some cultivars increased up to 40 %. No relationship between seed coat thickness, textures, or pigmentation and the larval ability of crossing seed coats was observed. Larval survival was also affected by cowpea cultivars. In BRS Xiquexique, only 30 % of the larvae survived at 20 days after oviposition. The weight of larvae developed into BRS Pajeu, and BRS Xiquexique cultivars decreased about 50 %. Cysteine protease, α-glucosidase, and α-amylase activities decreased in larvae developed in some cultivars, mainly in Pajeu, Guariba, Tucumaque, and Xiquexique. Adult emergence also decreased in Xiquexique, Pajeu, Tucumaque, and Paraguaçu BRS cultivars. A direct relationship between higher infestation and lower seed germination and seedling growth potential was observed. From these data, we would recommend the use of Pajeu, Guariba, Tucumaque, and Xiquexique BRS cultivars as a way to reduce cowpea infestation, and suggest that their resistance mechanism is related to the diminishment of larval digestive abilities. MenosCowpea [Vigna unguiculata (L.) Walp] seeds are an important source of nutrients for human and animal. However, part of the seed production is lost due to insect attacks, mainly by the weevil Callosobruchus maculatus (F.) (Coleoptera: Chrysomelidae), a major pest of stored cowpeas. An efficient method for controlling seed infestation is the use of insect-resistant cultivars. In this work, we studied the resistance of different cowpea Brazilian cultivars (BRS) to infestation and damage by C. maculatus. Our results showed that some cultivars interfered in female oviposition. The time necessary for the larvae to perforate the seed coat of some cultivars increased up to 40 %. No relationship between seed coat thickness, textures, or pigmentation and the larval ability of crossing seed coats was observed. Larval survival was also affected by cowpea cultivars. In BRS Xiquexique, only 30 % of the larvae survived at 20 days after oviposition. The weight of larvae developed into BRS Pajeu, and BRS Xiquexique cultivars decreased about 50 %. Cysteine protease, α-glucosidase, and α-amylase activities decreased in larvae developed in some cultivars, mainly in Pajeu, Guariba, Tucumaque, and Xiquexique. Adult emergence also decreased in Xiquexique, Pajeu, Tucumaque, and Paraguaçu BRS cultivars. A direct relationship between higher infestation and lower seed germination and seedling growth potential was observed. From these data, we would recommend the use of Pajeu, Guariba, Tucuma... Mostrar Tudo |
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Palavras-Chave: |
Defesa. |
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Thesagro: |
Feijão; Semente. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02435naa a2200265 a 4500
001 2038909
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008 2016 bl --- 0-- u #d
024 7 $a10.1007/s10340-015-0657-z$2DOI
100 1 $aCRUZ, L. P.
245 $aEvaluation of resistance in different cowpea cultivars to Callosobruchus maculatus infestation.
260 $c2016
520 $aCowpea [Vigna unguiculata (L.) Walp] seeds are an important source of nutrients for human and animal. However, part of the seed production is lost due to insect attacks, mainly by the weevil Callosobruchus maculatus (F.) (Coleoptera: Chrysomelidae), a major pest of stored cowpeas. An efficient method for controlling seed infestation is the use of insect-resistant cultivars. In this work, we studied the resistance of different cowpea Brazilian cultivars (BRS) to infestation and damage by C. maculatus. Our results showed that some cultivars interfered in female oviposition. The time necessary for the larvae to perforate the seed coat of some cultivars increased up to 40 %. No relationship between seed coat thickness, textures, or pigmentation and the larval ability of crossing seed coats was observed. Larval survival was also affected by cowpea cultivars. In BRS Xiquexique, only 30 % of the larvae survived at 20 days after oviposition. The weight of larvae developed into BRS Pajeu, and BRS Xiquexique cultivars decreased about 50 %. Cysteine protease, α-glucosidase, and α-amylase activities decreased in larvae developed in some cultivars, mainly in Pajeu, Guariba, Tucumaque, and Xiquexique. Adult emergence also decreased in Xiquexique, Pajeu, Tucumaque, and Paraguaçu BRS cultivars. A direct relationship between higher infestation and lower seed germination and seedling growth potential was observed. From these data, we would recommend the use of Pajeu, Guariba, Tucumaque, and Xiquexique BRS cultivars as a way to reduce cowpea infestation, and suggest that their resistance mechanism is related to the diminishment of larval digestive abilities.
650 $aFeijão
650 $aSemente
653 $aDefesa
700 1 $aSÁ, L. F. R. de
700 1 $aSANTOS, L. A.
700 1 $aGRAVINA, G. A.
700 1 $aCARVALHO, A. O.
700 1 $aFERNANDES, K. V. S.
700 1 $aFREIRE FILHO, F. R.
700 1 $aGOMES, V. M.
700 1 $aOLIVEIRA, A. E. A.
773 $tJournal of Pest Science$gv. 89, n. 1, p. 117-128, Mar. 2016.
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