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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Ocidental. |
Data corrente: |
13/02/2017 |
Data da última atualização: |
13/02/2017 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
OLIVEIRA, I. J. de; PEREIRA, M. C. N. |
Afiliação: |
INOCENCIO JUNIOR DE OLIVEIRA, CPAA; MIRZA CARLA NORMANDO PEREIRA, CPAA. |
Título: |
Avaliação da cultivar de feijão-caupi BRS Novaera em diversos municípios no Amazonas. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE FEIJÃO-CAUPI, 4., 2016, Sorriso. Feijão-caupi: avanços e desafios tecnológicos e de mercado: resumos. Brasília, DF : Embrapa, 2016. p. 47. |
Idioma: |
Português |
Conteúdo: |
Objetivou-se avaliar a cultivar de feijão-caupi BRS Novaera em 14 municípios do Amazonas e transferir tecnologia sobre o manejo da adubação para o cultivo em terra firme, o manejo das plantas daninhas e o arranjo espacial de plantas recomendados para os dois ecossistemas. |
Palavras-Chave: |
Feijão-caupi; Tratos culturais. |
Thesagro: |
Produtividade; Vigna Unguiculata. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/155534/1/ANAIS-CONAC2016-47.pdf
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Marc: |
LEADER 00932nam a2200169 a 4500 001 2063911 005 2017-02-13 008 2016 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, I. J. de 245 $aAvaliação da cultivar de feijão-caupi BRS Novaera em diversos municípios no Amazonas.$h[electronic resource] 260 $aIn: CONGRESSO NACIONAL DE FEIJÃO-CAUPI, 4., 2016, Sorriso. Feijão-caupi: avanços e desafios tecnológicos e de mercado: resumos. Brasília, DF : Embrapa, 2016. p. 47.$c2016 520 $aObjetivou-se avaliar a cultivar de feijão-caupi BRS Novaera em 14 municípios do Amazonas e transferir tecnologia sobre o manejo da adubação para o cultivo em terra firme, o manejo das plantas daninhas e o arranjo espacial de plantas recomendados para os dois ecossistemas. 650 $aProdutividade 650 $aVigna Unguiculata 653 $aFeijão-caupi 653 $aTratos culturais 700 1 $aPEREIRA, M. C. N.
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Embrapa Amazônia Ocidental (CPAA) |
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Registro Completo
Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
Data corrente: |
27/02/2024 |
Data da última atualização: |
01/03/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SILVA, A. F. T.; SILVA, L. B.; MALAQUIAS, J. B.; SALUSTINO, A. S.; CORREIA NETO, D. F.; PACHECO, D. M.; FRAGOSO, D. B.; PEREIRA, E. J. G.; a. |
Afiliação: |
ALISSON FRANCO TORRES DA SILVA, UNIVERSIDADE FEDERAL DO PIAUÍ; LUCIANA BARBOZA SILVA, UNIVERSIDADE FEDERAL DO PIAUÍ; JOSE B. MALAQUIAS, UNIVERSIDADE FEDERAL DA PARAÍBA; ANGELICA S. SALUSTINO, UNIVERSIDADE FEDERAL DA PARAÍBA; DOMINGOS FRANCISCO CORREIA NETO, UNIVERSIDADE FEDERAL DA PARAÍBA; DANIEL MARQUES PACHECO, UNIVERSIDADE FEDERAL DO PIAUÍ; DANIEL DE BRITO FRAGOSO, CNPASA; ELISEU J. G. PEREIRA, UNIVERSIDADE FEDERAL DE VIÇOSA. |
Título: |
Susceptibility of fall armyworm field populations to Vip3Aa/Cry Bt maize in a tropical agricultural region. |
Ano de publicação: |
2024 |
Fonte/Imprenta: |
Agronomy, v. 14, n. 3, p. 451, 2024. |
ISSN: |
2073-4395 |
DOI: |
https://doi.org/10.3390/agronomy14030451 |
Idioma: |
Inglês |
Conteúdo: |
Fall armyworm (FAW, Spodoptera frugiperda) is a polyphagous and migratory lepidopteran pest insect in field crops and is notoriously invasive worldwide. In large portions of the Americas, its populations are managed using transgenic maize or cotton varieties producing insecticidal proteins from Bacillus thuringiensis (Bt), primarily Vip3Aa pyramided with Cry Bt proteins. We determined the susceptibility of FAW field populations from locations pressured with such maize hybrids for over five years. We used time–mortality bioassays with F1 third-instar larvae of six geographically distinct populations collected in maize fields of a tropical agricultural region encompassing four Brazilian states. We maintained the neonate progeny from the field populations on an artificial diet until the third instar, and then determined their survival curves on the foliage of three Vip3Aa/Cry-producing Bt maize hybrids. Death of the mid-size, third-instar FAWs occurred relatively rapidly, with larval mortality rates reaching 98–100% in less than five days regardless of Bt maize hybrid. However, median survival time (ST50) for the larvae differed among the populations, with the lowest and highest ST50 values occurring for PI-Cr (42 h, 1.75 d) and PI-Ur populations (66–90 h, 2.75–3.75 h), respectively. Therefore, the F1 third-instar larvae of FAW populations were largely susceptible to Vip3Aa/Cry-producing maize foliage, and the most contrasting susceptibility occurred in the insects from Piauí state, Brazil. These results indicate that progeny of FAWs from areas highly pressured with Vip3Aa/Cry Bt maize hybrids are killed on maize foliage producing Vip3Aa and Cry Bt proteins despite field reports of increased leaf damage by the larvae in some locations. This research informs decision making for Bt-crop resistance management by producers, technicians, and researchers in local, regional, and world agriculture. MenosFall armyworm (FAW, Spodoptera frugiperda) is a polyphagous and migratory lepidopteran pest insect in field crops and is notoriously invasive worldwide. In large portions of the Americas, its populations are managed using transgenic maize or cotton varieties producing insecticidal proteins from Bacillus thuringiensis (Bt), primarily Vip3Aa pyramided with Cry Bt proteins. We determined the susceptibility of FAW field populations from locations pressured with such maize hybrids for over five years. We used time–mortality bioassays with F1 third-instar larvae of six geographically distinct populations collected in maize fields of a tropical agricultural region encompassing four Brazilian states. We maintained the neonate progeny from the field populations on an artificial diet until the third instar, and then determined their survival curves on the foliage of three Vip3Aa/Cry-producing Bt maize hybrids. Death of the mid-size, third-instar FAWs occurred relatively rapidly, with larval mortality rates reaching 98–100% in less than five days regardless of Bt maize hybrid. However, median survival time (ST50) for the larvae differed among the populations, with the lowest and highest ST50 values occurring for PI-Cr (42 h, 1.75 d) and PI-Ur populations (66–90 h, 2.75–3.75 h), respectively. Therefore, the F1 third-instar larvae of FAW populations were largely susceptible to Vip3Aa/Cry-producing maize foliage, and the most contrasting susceptibility occurred in the insects from Piauí s... Mostrar Tudo |
Palavras-Chave: |
Bt crops. |
Thesagro: |
Bacillus Thuringiensis; Lagarta; Praga de Planta; Spodoptera Frugiperda. |
Thesaurus NAL: |
Insect pests; Resistance management; Transgenic insects; Tropical agriculture. |
Categoria do assunto: |
O Insetos e Entomologia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1162293/1/agronomy-2024.pdf
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Marc: |
LEADER 02951naa a2200349 a 4500 001 2162293 005 2024-03-01 008 2024 bl uuuu u00u1 u #d 022 $a2073-4395 024 7 $ahttps://doi.org/10.3390/agronomy14030451$2DOI 100 1 $aSILVA, A. F. T. 245 $aSusceptibility of fall armyworm field populations to Vip3Aa/Cry Bt maize in a tropical agricultural region.$h[electronic resource] 260 $c2024 520 $aFall armyworm (FAW, Spodoptera frugiperda) is a polyphagous and migratory lepidopteran pest insect in field crops and is notoriously invasive worldwide. In large portions of the Americas, its populations are managed using transgenic maize or cotton varieties producing insecticidal proteins from Bacillus thuringiensis (Bt), primarily Vip3Aa pyramided with Cry Bt proteins. We determined the susceptibility of FAW field populations from locations pressured with such maize hybrids for over five years. We used time–mortality bioassays with F1 third-instar larvae of six geographically distinct populations collected in maize fields of a tropical agricultural region encompassing four Brazilian states. We maintained the neonate progeny from the field populations on an artificial diet until the third instar, and then determined their survival curves on the foliage of three Vip3Aa/Cry-producing Bt maize hybrids. Death of the mid-size, third-instar FAWs occurred relatively rapidly, with larval mortality rates reaching 98–100% in less than five days regardless of Bt maize hybrid. However, median survival time (ST50) for the larvae differed among the populations, with the lowest and highest ST50 values occurring for PI-Cr (42 h, 1.75 d) and PI-Ur populations (66–90 h, 2.75–3.75 h), respectively. Therefore, the F1 third-instar larvae of FAW populations were largely susceptible to Vip3Aa/Cry-producing maize foliage, and the most contrasting susceptibility occurred in the insects from Piauí state, Brazil. These results indicate that progeny of FAWs from areas highly pressured with Vip3Aa/Cry Bt maize hybrids are killed on maize foliage producing Vip3Aa and Cry Bt proteins despite field reports of increased leaf damage by the larvae in some locations. This research informs decision making for Bt-crop resistance management by producers, technicians, and researchers in local, regional, and world agriculture. 650 $aInsect pests 650 $aResistance management 650 $aTransgenic insects 650 $aTropical agriculture 650 $aBacillus Thuringiensis 650 $aLagarta 650 $aPraga de Planta 650 $aSpodoptera Frugiperda 653 $aBt crops 700 1 $aSILVA, L. B. 700 1 $aMALAQUIAS, J. B. 700 1 $aSALUSTINO, A. S. 700 1 $aCORREIA NETO, D. F. 700 1 $aPACHECO, D. M. 700 1 $aFRAGOSO, D. B. 700 1 $aPEREIRA, E. J. G. 700 1 $aa 773 $tAgronomy$gv. 14, n. 3, p. 451, 2024.
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