| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
21/12/2017 |
|
Data da última atualização: |
27/01/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
CAMPAGNANI, M. O.; CAMPOS, W. G.; AMORIM, S. S.; ROSA, L. H.; AUAD, A. M.; CANGUSSÚ, M. A.; MAURÍCIO, R. M. |
|
Afiliação: |
Michelle Oliveira Campagnani, Universidade Federal de São João Del Rei; Wellington Garcia Campos, Universidade Federal de São João Del Rei; Soraya Sander Amorim, UFMG; Luiz Henrique Rosa, UFMG; ALEXANDER MACHADO AUAD, CNPGL; Mauroni Alves Cangussú, Centro Brasileiro de Pecuária Sustentável; Rogério Martins Maurício, Universidade Federal de São João Del Rei. |
|
Título: |
Prospection and fungal virulence associated with Mahanarva spectabilis (Hemiptera: Cercopidae) in an Amazon silvopastoral system. |
|
Ano de publicação: |
2017 |
|
Fonte/Imprenta: |
Florida Entomologist, v. 100, n. 2, p. 426-432, 2017. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract In Brazil, pastures of Brachiaria grasses are often attacked by the spittlebug Mahanarva spectabilis (Distant) (Hemiptera: Cercopidae). Biological control of this pest insect is rarely used, in part because of a lack of diversity in commercialized pathogens effective against such pests. However, fungal infection of M. spectabilis has been noted in some tropical silvopastoral systems, which rarely have problems with pest insects. This study surveyed the fungi found in association with M. spectabilis in a silvopastoral system in Brazil and made a preliminary assessment of their virulence. Infected spittlebugs were collected in a silvopastoral system in Brazil, from which 5 types of fungi were isolated and identified by morphological analysis. Conidia of each wild fungus and a commercial strain of Metarhizum anisopliae (Metschn.) Sorokin (Clavicipitaceae) were diluted in a 1% NaCl solution at a concentration of 1×104 conidia per mL. In the laboratory, eggs and nymphs of M. spectabilis were placed in acrylic boxes within a climate-controlled chamber at 25 °C. In a non-acclimatized greenhouse, eggs and nymphs were placed on potted Brachiaria decumbens Stapf (Poaceae). Solutions of the 6 fungi and a control (pure saline) were applied to M. spectabilis in both conditions (acrylic box in laboratory and potted Brachiaria in a greenhouse). The most virulent fungi (UFMG 11443 and 11444) caused more than 90% of unviable eggs and mortality of nymphs. Other fungi tested (UFMG 11440, 11441, and 11442) were equally or more effective than the commercial M. anisopliae, causing over 50% unviable eggs or nymph mortality. All isolated fungi showed potential for use as biological control agents against M. spectabilis. MenosAbstract In Brazil, pastures of Brachiaria grasses are often attacked by the spittlebug Mahanarva spectabilis (Distant) (Hemiptera: Cercopidae). Biological control of this pest insect is rarely used, in part because of a lack of diversity in commercialized pathogens effective against such pests. However, fungal infection of M. spectabilis has been noted in some tropical silvopastoral systems, which rarely have problems with pest insects. This study surveyed the fungi found in association with M. spectabilis in a silvopastoral system in Brazil and made a preliminary assessment of their virulence. Infected spittlebugs were collected in a silvopastoral system in Brazil, from which 5 types of fungi were isolated and identified by morphological analysis. Conidia of each wild fungus and a commercial strain of Metarhizum anisopliae (Metschn.) Sorokin (Clavicipitaceae) were diluted in a 1% NaCl solution at a concentration of 1×104 conidia per mL. In the laboratory, eggs and nymphs of M. spectabilis were placed in acrylic boxes within a climate-controlled chamber at 25 °C. In a non-acclimatized greenhouse, eggs and nymphs were placed on potted Brachiaria decumbens Stapf (Poaceae). Solutions of the 6 fungi and a control (pure saline) were applied to M. spectabilis in both conditions (acrylic box in laboratory and potted Brachiaria in a greenhouse). The most virulent fungi (UFMG 11443 and 11444) caused more than 90% of unviable eggs and mortality of nymphs. Other fungi tested (UFMG 114... Mostrar Tudo |
|
Palavras-Chave: |
Entomopathogenic fungus; Pasture spittlebug. |
|
Thesaurus Nal: |
biological control; mortality. |
|
Categoria do assunto: |
O Insetos e Entomologia |
|
Marc: |
LEADER 02487naa a2200241 a 4500
001 2083218
005 2023-01-27
008 2017 bl uuuu u00u1 u #d
100 1 $aCAMPAGNANI, M. O.
245 $aProspection and fungal virulence associated with Mahanarva spectabilis (Hemiptera$bCercopidae) in an Amazon silvopastoral system.$h[electronic resource]
260 $c2017
520 $aAbstract In Brazil, pastures of Brachiaria grasses are often attacked by the spittlebug Mahanarva spectabilis (Distant) (Hemiptera: Cercopidae). Biological control of this pest insect is rarely used, in part because of a lack of diversity in commercialized pathogens effective against such pests. However, fungal infection of M. spectabilis has been noted in some tropical silvopastoral systems, which rarely have problems with pest insects. This study surveyed the fungi found in association with M. spectabilis in a silvopastoral system in Brazil and made a preliminary assessment of their virulence. Infected spittlebugs were collected in a silvopastoral system in Brazil, from which 5 types of fungi were isolated and identified by morphological analysis. Conidia of each wild fungus and a commercial strain of Metarhizum anisopliae (Metschn.) Sorokin (Clavicipitaceae) were diluted in a 1% NaCl solution at a concentration of 1×104 conidia per mL. In the laboratory, eggs and nymphs of M. spectabilis were placed in acrylic boxes within a climate-controlled chamber at 25 °C. In a non-acclimatized greenhouse, eggs and nymphs were placed on potted Brachiaria decumbens Stapf (Poaceae). Solutions of the 6 fungi and a control (pure saline) were applied to M. spectabilis in both conditions (acrylic box in laboratory and potted Brachiaria in a greenhouse). The most virulent fungi (UFMG 11443 and 11444) caused more than 90% of unviable eggs and mortality of nymphs. Other fungi tested (UFMG 11440, 11441, and 11442) were equally or more effective than the commercial M. anisopliae, causing over 50% unviable eggs or nymph mortality. All isolated fungi showed potential for use as biological control agents against M. spectabilis.
650 $abiological control
650 $amortality
653 $aEntomopathogenic fungus
653 $aPasture spittlebug
700 1 $aCAMPOS, W. G.
700 1 $aAMORIM, S. S.
700 1 $aROSA, L. H.
700 1 $aAUAD, A. M.
700 1 $aCANGUSSÚ, M. A.
700 1 $aMAURÍCIO, R. M.
773 $tFlorida Entomologist$gv. 100, n. 2, p. 426-432, 2017.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
26/06/2023 |
|
Data da última atualização: |
26/06/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
SILVA, G. I. N.; JARDIM, A. M. da R. F.; SOUZA, M. de S.; ARAÚJO JÚNIOR, G. do N.; MORAIS, J. E. F. de; SOUZA, L. S. B. de; SOUZA, C. A. A. de; ALVES, C. P.; ARAUJO, G. G. L. de; MONTENEGRO, A. A. de A.; LIMA, B. L. de C.; SILVA, T. G. F. da. |
|
Afiliação: |
GABRIEL ITALO NOVAES DA SILVA, Universidade Federal Rural de Pernambuco; ALEXANDRE MANIÇOBA DA ROSA FERRAZ JARDIM, Universidade Federal Rural de Pernambuco; MARCONDES DE SÁ SOUZA, Universidade Federal Rural de Pernambuco; GEORGE DO NASCIMENTO ARAÚJO JÚNIOR, Universidade Federal Rural de Pernambuco; JOSÉ EDSON FLORENTINO DE MORAIS, Universidade Federal Rural de Pernambuco/UAST – Serra Talhada, PE; LUCIANA SANDRA BASTOS DE SOUZA, Universidade Federal Rural de Pernambuco/UAST – Serra Talhada, PE; CARLOS ANDRÉ ALVES DE SOUZA, Universidade Federal Rural de Pernambuco; CLEBER PEREIRA ALVES, Universidade Federal Rural de Pernambuco; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; ABELARDO ANTÔNIO DE ASSUNÇÃO MONTENEGRO, Universidade Federal Rural de Pernambuco/UAST – Serra Talhada, PE; BRENO LEONAN DE CARVALHO LIMA, INSA; THIERES GEORGE FREIRE DA SILVA, Universidade Federal Rural de Pernambuco/UAST – Serra Talhada, PE. |
|
Título: |
Combined agricultural practices in millet and cactus: phyllochron, structural characteristics and relations with yield. |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
Scientia Agrícola, v. 80, e20220046, 2023. |
|
ISSN: |
1678-992X |
|
DOI: |
http://doi.org/10.1590/1678-992X-2022-0046 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Variation in rainfall affects crops; therefore, agricultural practices become essential for forage production in semi-arid regions. This study aimed to evaluate the influence of different agricultural practices on phyllochron, structural characteristics of forage cactus and millet, and their relations with crop yield using the principal component analysis (PCA). The design was in randomized blocks, with six treatments: sole cropped cactus without straw mulching, sole cropped cactus with straw mulching, sole cropped millet without straw mulching, sole cropped millet with straw mulching, and cactus intercropping with millet, with and without straw mulching, each with four replicates. There were three cactus cycles and nine millet cycles (three cycles of cultivars BRS1501 and six of IPA Bulk-1-BF). Biometric parameters were evaluated monthly, while yield was determined after the crop harvest. Phyllochron was determined with the regression analysis. The PCA was applied to structural characteristics and yield. The systems adopted did not influence the structural characteristics of cactus and millet (p > 0.05), except for cladode thickness, which increased with straw mulching. Phyllochron of the millet reduced when the crop was intercropped. The structural characteristics of cladode length, width, and thickness influenced crop yield, mainly in systems with straw mulching. Straw mulching and intercropping alter phyllochron of cactus and millet. The adoption of straw mulching has a more significant relationship with cactus yield, whereas biometric variables influence crop yield for millet, not the cropping system. MenosVariation in rainfall affects crops; therefore, agricultural practices become essential for forage production in semi-arid regions. This study aimed to evaluate the influence of different agricultural practices on phyllochron, structural characteristics of forage cactus and millet, and their relations with crop yield using the principal component analysis (PCA). The design was in randomized blocks, with six treatments: sole cropped cactus without straw mulching, sole cropped cactus with straw mulching, sole cropped millet without straw mulching, sole cropped millet with straw mulching, and cactus intercropping with millet, with and without straw mulching, each with four replicates. There were three cactus cycles and nine millet cycles (three cycles of cultivars BRS1501 and six of IPA Bulk-1-BF). Biometric parameters were evaluated monthly, while yield was determined after the crop harvest. Phyllochron was determined with the regression analysis. The PCA was applied to structural characteristics and yield. The systems adopted did not influence the structural characteristics of cactus and millet (p > 0.05), except for cladode thickness, which increased with straw mulching. Phyllochron of the millet reduced when the crop was intercropped. The structural characteristics of cladode length, width, and thickness influenced crop yield, mainly in systems with straw mulching. Straw mulching and intercropping alter phyllochron of cactus and millet. The adoption of straw mulching has a ... Mostrar Tudo |
|
Palavras-Chave: |
Análise do componente principal; Cobertura de palha; Cobertura morta de palha; Consórcio; Filocrono; Milho-miúdo sem cobertura de palha; Região semiárida. |
|
Thesagro: |
Cobertura Morta; Consorciação de Cultura; Forragem; Milheto; Monocultura; Palma Forrageira; Sistema de Cultivo. |
|
Thesaurus NAL: |
Cactus pears; Forage; Intercropping; Millets. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1154608/1/Combined-agricultural-practices-in-millet-and-cactus-phyllochron-structural-characteristics-and-relations-with-yield-2023.pdf
|
|
Marc: |
LEADER 03119naa a2200493 a 4500
001 2154608
005 2023-06-26
008 2023 bl uuuu u00u1 u #d
022 $a1678-992X
024 7 $ahttp://doi.org/10.1590/1678-992X-2022-0046$2DOI
100 1 $aSILVA, G. I. N.
245 $aCombined agricultural practices in millet and cactus$bphyllochron, structural characteristics and relations with yield.$h[electronic resource]
260 $c2023
520 $aVariation in rainfall affects crops; therefore, agricultural practices become essential for forage production in semi-arid regions. This study aimed to evaluate the influence of different agricultural practices on phyllochron, structural characteristics of forage cactus and millet, and their relations with crop yield using the principal component analysis (PCA). The design was in randomized blocks, with six treatments: sole cropped cactus without straw mulching, sole cropped cactus with straw mulching, sole cropped millet without straw mulching, sole cropped millet with straw mulching, and cactus intercropping with millet, with and without straw mulching, each with four replicates. There were three cactus cycles and nine millet cycles (three cycles of cultivars BRS1501 and six of IPA Bulk-1-BF). Biometric parameters were evaluated monthly, while yield was determined after the crop harvest. Phyllochron was determined with the regression analysis. The PCA was applied to structural characteristics and yield. The systems adopted did not influence the structural characteristics of cactus and millet (p > 0.05), except for cladode thickness, which increased with straw mulching. Phyllochron of the millet reduced when the crop was intercropped. The structural characteristics of cladode length, width, and thickness influenced crop yield, mainly in systems with straw mulching. Straw mulching and intercropping alter phyllochron of cactus and millet. The adoption of straw mulching has a more significant relationship with cactus yield, whereas biometric variables influence crop yield for millet, not the cropping system.
650 $aCactus pears
650 $aForage
650 $aIntercropping
650 $aMillets
650 $aCobertura Morta
650 $aConsorciação de Cultura
650 $aForragem
650 $aMilheto
650 $aMonocultura
650 $aPalma Forrageira
650 $aSistema de Cultivo
653 $aAnálise do componente principal
653 $aCobertura de palha
653 $aCobertura morta de palha
653 $aConsórcio
653 $aFilocrono
653 $aMilho-miúdo sem cobertura de palha
653 $aRegião semiárida
700 1 $aJARDIM, A. M. da R. F.
700 1 $aSOUZA, M. de S.
700 1 $aARAÚJO JÚNIOR, G. do N.
700 1 $aMORAIS, J. E. F. de
700 1 $aSOUZA, L. S. B. de
700 1 $aSOUZA, C. A. A. de
700 1 $aALVES, C. P.
700 1 $aARAUJO, G. G. L. de
700 1 $aMONTENEGRO, A. A. de A.
700 1 $aLIMA, B. L. de C.
700 1 $aSILVA, T. G. F. da
773 $tScientia Agrícola$gv. 80, e20220046, 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
