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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
03/09/2021 |
Data da última atualização: |
03/09/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
OLIVEIRA, C. M. de; FRIZZAS, M. R. |
Afiliação: |
CHARLES MARTINS DE OLIVEIRA, CPAC; MARINA REGINA FRIZZAS. |
Título: |
Root consumption and damage estimates caused by Phyllophaga capillata and Aegopsis bolboceridus (Coleoptera, Melolonthidae) larvae in soybean and maize in central Brazil. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Crop Protection, v. 146, August 2021. |
Páginas: |
7 p. |
DOI: |
https://doi.org/10.1016/j.cropro.2021.105651 |
Idioma: |
Inglês |
Conteúdo: |
Abstract Phyllophaga capillata (Blanchard) and Aegopsis bolboceridus (Thomson) (Coleoptera, Melolonthidae) are important soil pests in soybean and maize crops in central Brazil. The aim of this study was to evaluate the capacity of root consumption by larvae of P. capillata in soybean and A. bolboceridus in maize under controlled conditions and to estimate the damage caused by these species in the field. Root consumption was evaluated in a screened nursery (Brasília/DF, Brazil). Pots with soybean and maize plants were infested separately with different instars and larval densities (0, 1, 2, 4, 6, 8, and 10 larvae/plant) of P. capillata or A. bolboceridus. After 24 h, the weight, area, and length of the roots were evaluated. Damage estimates were calculated for soybean (Brasília/DF, Brazil) and maize (Cabeceiras/GO, Brazil) production in fields with and without severe white grub infestations. In the crop production stage of the experiment, we evaluated the number of plants per linear meter, weight of 1000 grains, productivity, number of pods per plant (soybean), and weight and length of ears (maize). For the two species of white grubs, root consumption was relatively low for first-instar larvae, high for second-instar larvae, and especially high for third-instar larvae. The third instars reduced the root system by approximately 25% in soybean and 64% in maize. We observed that P. capillata and A. bolboceridus damaged all evaluated variables, reducing overall soybean productivity by 58.62% and maize productivity by 59.76%. Our results suggest that it is necessary to monitor the presence of these species by sampling and include them in the integrated pest management programs of these crops in the regions where these species occur. MenosAbstract Phyllophaga capillata (Blanchard) and Aegopsis bolboceridus (Thomson) (Coleoptera, Melolonthidae) are important soil pests in soybean and maize crops in central Brazil. The aim of this study was to evaluate the capacity of root consumption by larvae of P. capillata in soybean and A. bolboceridus in maize under controlled conditions and to estimate the damage caused by these species in the field. Root consumption was evaluated in a screened nursery (Brasília/DF, Brazil). Pots with soybean and maize plants were infested separately with different instars and larval densities (0, 1, 2, 4, 6, 8, and 10 larvae/plant) of P. capillata or A. bolboceridus. After 24 h, the weight, area, and length of the roots were evaluated. Damage estimates were calculated for soybean (Brasília/DF, Brazil) and maize (Cabeceiras/GO, Brazil) production in fields with and without severe white grub infestations. In the crop production stage of the experiment, we evaluated the number of plants per linear meter, weight of 1000 grains, productivity, number of pods per plant (soybean), and weight and length of ears (maize). For the two species of white grubs, root consumption was relatively low for first-instar larvae, high for second-instar larvae, and especially high for third-instar larvae. The third instars reduced the root system by approximately 25% in soybean and 64% in maize. We observed that P. capillata and A. bolboceridus damaged all evaluated variables, reducing overall soybean productiv... Mostrar Tudo |
Thesagro: |
Larva; Perda da Produção; Praga de Planta; Previsão de Safra. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02461naa a2200205 a 4500 001 2134045 005 2021-09-03 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.cropro.2021.105651$2DOI 100 1 $aOLIVEIRA, C. M. de 245 $aRoot consumption and damage estimates caused by Phyllophaga capillata and Aegopsis bolboceridus (Coleoptera, Melolonthidae) larvae in soybean and maize in central Brazil.$h[electronic resource] 260 $c2021 300 $a7 p. 520 $aAbstract Phyllophaga capillata (Blanchard) and Aegopsis bolboceridus (Thomson) (Coleoptera, Melolonthidae) are important soil pests in soybean and maize crops in central Brazil. The aim of this study was to evaluate the capacity of root consumption by larvae of P. capillata in soybean and A. bolboceridus in maize under controlled conditions and to estimate the damage caused by these species in the field. Root consumption was evaluated in a screened nursery (Brasília/DF, Brazil). Pots with soybean and maize plants were infested separately with different instars and larval densities (0, 1, 2, 4, 6, 8, and 10 larvae/plant) of P. capillata or A. bolboceridus. After 24 h, the weight, area, and length of the roots were evaluated. Damage estimates were calculated for soybean (Brasília/DF, Brazil) and maize (Cabeceiras/GO, Brazil) production in fields with and without severe white grub infestations. In the crop production stage of the experiment, we evaluated the number of plants per linear meter, weight of 1000 grains, productivity, number of pods per plant (soybean), and weight and length of ears (maize). For the two species of white grubs, root consumption was relatively low for first-instar larvae, high for second-instar larvae, and especially high for third-instar larvae. The third instars reduced the root system by approximately 25% in soybean and 64% in maize. We observed that P. capillata and A. bolboceridus damaged all evaluated variables, reducing overall soybean productivity by 58.62% and maize productivity by 59.76%. Our results suggest that it is necessary to monitor the presence of these species by sampling and include them in the integrated pest management programs of these crops in the regions where these species occur. 650 $aLarva 650 $aPerda da Produção 650 $aPraga de Planta 650 $aPrevisão de Safra 700 1 $aFRIZZAS, M. R. 773 $tCrop Protection$gv. 146, August 2021.
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Embrapa Cerrados (CPAC) |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
28/11/2023 |
Data da última atualização: |
28/11/2023 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
ROMANELLO, N.; BARRETO, A. DO N.; PEREIRA, V. S. do A.; SOUSA, M. A. DE P.; GARCIA, A. R. |
Afiliação: |
NARIAN ROMANELLO, Universidade de São Paulo; ANDRÉA DO NASCIMENTO BARRETO, Universidade Federal do Pará; VERONICA SCHINAIDER DO A PEREIRA, CPPSE; MARCO ANTONIO DE PAULA SOUSA, Universidade Federal do Pará; ALEXANDRE ROSSETTO GARCIA, CPPSE. |
Título: |
Temperaturas escrotais segmentares de touros zebu (Bos indicus) e compostos (Bos taurus x Bos indicus) mantidos em sistema de integração lavoura-pecuária-floresta (ILPF). |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 36., 2023, Campinas. Anais... Jaboticabal: SBTE, 2023. |
Páginas: |
p. 27. |
Idioma: |
Português |
Conteúdo: |
A termorregulação escrotal é fundamental para a normalidade da produção espermática, cuja eficiência pode variar de acordo com o genótipo do touro. |
Palavras-Chave: |
Cauda do epidídimo; Funículo espermático; ILPF; Integração lavoura-pecuária-floresta; Polo testicular distal; Polo testicular proximal; Produção espermática; Temperatura escrotal; Termorregulação escrotal. |
Thesagro: |
Bos Indicus; Bos Taurus; Gado Canchim. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1158798/1/Temperaturas-Escrotais-Segmentares.pdf
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Marc: |
LEADER 01273nam a2200313 a 4500 001 2158798 005 2023-11-28 008 2023 bl uuuu u00u1 u #d 100 1 $aROMANELLO, N. 245 $aTemperaturas escrotais segmentares de touros zebu (Bos indicus) e compostos (Bos taurus x Bos indicus) mantidos em sistema de integração lavoura-pecuária-floresta (ILPF).$h[electronic resource] 260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE TECNOLOGIA DE EMBRIÕES, 36., 2023, Campinas. Anais... Jaboticabal: SBTE$c2023 300 $ap. 27. 520 $aA termorregulação escrotal é fundamental para a normalidade da produção espermática, cuja eficiência pode variar de acordo com o genótipo do touro. 650 $aBos Indicus 650 $aBos Taurus 650 $aGado Canchim 653 $aCauda do epidídimo 653 $aFunículo espermático 653 $aILPF 653 $aIntegração lavoura-pecuária-floresta 653 $aPolo testicular distal 653 $aPolo testicular proximal 653 $aProdução espermática 653 $aTemperatura escrotal 653 $aTermorregulação escrotal 700 1 $aBARRETO, A. DO N. 700 1 $aPEREIRA, V. S. do A. 700 1 $aSOUSA, M. A. DE P. 700 1 $aGARCIA, A. R.
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