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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
27/12/2021 |
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Data da última atualização: |
27/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RIOS, D. AM; SPECHT, A.; ROQUE-SPECHT, V. F.; SÓSA-GOMEZ, D. R.; FOCHEZATO, J.; MALAQUIAS, J. V.; GONÇALVES, G. L.; MOREIRA, G. RP. |
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Afiliação: |
DANIELLY AM RIOS, Faculdade UnB Planaltina, Universidade de Brasília, Planaltina, DF.; ALEXANDRE SPECHT, CPAC; VÂNIA F ROQUE-SPECHT, Faculdade UnB Planaltina, Universidade de Brasília, Planaltina, DF.; DANIEL RICARDO SOSA GOMEZ, CNPSO; JÚLIA FOCHEZATO, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; JUACI VITORIA MALAQUIAS, CPAC; GISLENE L GONÇALVES, Departamento de Recursos Ambientales, Facultad de Ciencias Agronómicas, Universidad de Tarapacá, Arica, Chile; GILSON RP MOREIRA, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS. |
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Título: |
Helicoverpa armigera and Helicoverpa zea hybridization: constraints, heterosis, and implications for pest management. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Pest Management Science, 2021. |
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Páginas: |
10 pgs |
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Idioma: |
Inglês |
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Conteúdo: |
AbstractBACKGROUND: The invasion ofHelicoverpa armigera(Hübner) (Lepidoptera: Noctuidae) into the New World has made it possi-ble for this pest to hybridize with a native American species,H. zea(Boddie), under natural conditions. We investigated the via-bility and development of hybrids of these twoHelicoverpaspecies. We reared the parental species and evaluated crossesbetweenH. armigeramales andH. zeafemales andvice versa, two intercrosses between hybrids, and eight backcrosses betweenhybrids and parental species. We estimated the length of immature stages, fecundity, survival, sex ratio, and heterosis.RESULTS: Although hybridization occcurred, with heterosis during the development of immatures, reproductive incompatibil-ities also were observed between the parental species and between hybrids from subsequent crosses. The interspecific crossesbetween hybrids and backcrosses confirmed the possibility of introgression events and their perpetuation infield populations.The results indicate that hybridization events are favored at high population levels, while at low population levels the?speciesidentities?will be maintained.CONCLUSIONS: The possibility of interspecific geneflow and its perpetuation through successive crosses and backcrosses sug-gests several recommenations for management. Populations of both species should be maintained at an equilibrium level toreduce the chance of interspecific crosses, which are presumably more likely to occur during pest outbreaks. The existenceof hybridization and resistance to different active pesticide ingredients should be monitored. All practices related to managingthe resistance of these pests to chemical and biological insecticides should be systematized to reduce the chance of selectingfor resistant individuals. MenosAbstractBACKGROUND: The invasion ofHelicoverpa armigera(Hübner) (Lepidoptera: Noctuidae) into the New World has made it possi-ble for this pest to hybridize with a native American species,H. zea(Boddie), under natural conditions. We investigated the via-bility and development of hybrids of these twoHelicoverpaspecies. We reared the parental species and evaluated crossesbetweenH. armigeramales andH. zeafemales andvice versa, two intercrosses between hybrids, and eight backcrosses betweenhybrids and parental species. We estimated the length of immature stages, fecundity, survival, sex ratio, and heterosis.RESULTS: Although hybridization occcurred, with heterosis during the development of immatures, reproductive incompatibil-ities also were observed between the parental species and between hybrids from subsequent crosses. The interspecific crossesbetween hybrids and backcrosses confirmed the possibility of introgression events and their perpetuation infield populations.The results indicate that hybridization events are favored at high population levels, while at low population levels the?speciesidentities?will be maintained.CONCLUSIONS: The possibility of interspecific geneflow and its perpetuation through successive crosses and backcrosses sug-gests several recommenations for management. Populations of both species should be maintained at an equilibrium level toreduce the chance of interspecific crosses, which are presumably more likely to occur during pest outbreaks. The exis... Mostrar Tudo |
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Palavras-Chave: |
Agricultural pests; Alien species; Espécies alienígenas; Heterose; Hibridização; Introgressão; Parâmetros reprodutivos; Pragas agrícolas; Reproductive parameters. |
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Thesagro: |
Parâmetro Genético; Praga; Soja. |
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Thesaurus Nal: |
Heterosis; Hybridization; Introgression. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02897naa a2200397 a 4500
001 2138396
005 2021-12-27
008 2021 bl uuuu u00u1 u #d
100 1 $aRIOS, D. AM
245 $aHelicoverpa armigera and Helicoverpa zea hybridization$bconstraints, heterosis, and implications for pest management.$h[electronic resource]
260 $c2021
300 $a10 pgs
520 $aAbstractBACKGROUND: The invasion ofHelicoverpa armigera(Hübner) (Lepidoptera: Noctuidae) into the New World has made it possi-ble for this pest to hybridize with a native American species,H. zea(Boddie), under natural conditions. We investigated the via-bility and development of hybrids of these twoHelicoverpaspecies. We reared the parental species and evaluated crossesbetweenH. armigeramales andH. zeafemales andvice versa, two intercrosses between hybrids, and eight backcrosses betweenhybrids and parental species. We estimated the length of immature stages, fecundity, survival, sex ratio, and heterosis.RESULTS: Although hybridization occcurred, with heterosis during the development of immatures, reproductive incompatibil-ities also were observed between the parental species and between hybrids from subsequent crosses. The interspecific crossesbetween hybrids and backcrosses confirmed the possibility of introgression events and their perpetuation infield populations.The results indicate that hybridization events are favored at high population levels, while at low population levels the?speciesidentities?will be maintained.CONCLUSIONS: The possibility of interspecific geneflow and its perpetuation through successive crosses and backcrosses sug-gests several recommenations for management. Populations of both species should be maintained at an equilibrium level toreduce the chance of interspecific crosses, which are presumably more likely to occur during pest outbreaks. The existenceof hybridization and resistance to different active pesticide ingredients should be monitored. All practices related to managingthe resistance of these pests to chemical and biological insecticides should be systematized to reduce the chance of selectingfor resistant individuals.
650 $aHeterosis
650 $aHybridization
650 $aIntrogression
650 $aParâmetro Genético
650 $aPraga
650 $aSoja
653 $aAgricultural pests
653 $aAlien species
653 $aEspécies alienígenas
653 $aHeterose
653 $aHibridização
653 $aIntrogressão
653 $aParâmetros reprodutivos
653 $aPragas agrícolas
653 $aReproductive parameters
700 1 $aSPECHT, A.
700 1 $aROQUE-SPECHT, V. F.
700 1 $aSÓSA-GOMEZ, D. R.
700 1 $aFOCHEZATO, J.
700 1 $aMALAQUIAS, J. V.
700 1 $aGONÇALVES, G. L.
700 1 $aMOREIRA, G. RP
773 $tPest Management Science, 2021.
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Registro original: |
Embrapa Cerrados (CPAC) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
23/04/2020 |
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Data da última atualização: |
23/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
CAVALCANTE, I. H. L.; SILVA, G. J. N. e; CAVACINI, J. A.; AMARIZ, R. A. e; FREITAS, S. T. de; SOUSA, K, A. O. de; SILVA, M. A. da; CUNHA, J. G. da. |
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Afiliação: |
Ítalo Herbert Lucena Cavalcante; Gilberto José Nogueira e Silva; Jeferson Antônio Cavacini; Renata Araújo e Amariz; SERGIO TONETTO DE FREITAS, CPATSA; Kellem Ângela Oliveira de Sousa; Marcelle Almeida da Silva; Jenilton Gomes da Cunha. |
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Título: |
Metconazole on inhibition of gibberellin biosynthesis and flowering management in mango. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Erwerbs-Obstbau, v. 62, n. 1, p. 89-95, 2020. |
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DOI: |
https://doi.org/10.1007/s10341-019-00466-w |
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Idioma: |
Inglês |
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Conteúdo: |
Gibberellins have been shown to suppress floral development in mango, thus farmers have used growth retardants, especially paclobutrazol, to inhibit gibberellin biosynthesis, but in many countries such as Brazil, this is the unique registered molecule, which affects sustainability of the mango industry. The objective of this study was to evaluate the effect of metconazole on gibberellin biosynthesis inhibition and carbohydrate accumulation in ?Palmer? mango grown in semi-arid conditions. The experiment was accomplished from 2015 to 2017 in an experimental orchard located in Petrolina, Pernambuco, Brazil. The experimental design were randomized blocks with five treatments, five replications and three plants per replication. The treatments consisted of metconazole (0, 0.7, 1.0 or 1.3g) and paclobutrazol (1.0g) application per linear meter of plant canopy. According to the results, metconazole efficiently inhibits gibberellin biosynthesis in mango, but it affects AG1+AG3 (Gibberellic Acid) and AG4 differently. Therefore, metconazole can potentially be used on mango flowering management, but further studies are required to determine specific management practices. |
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Palavras-Chave: |
Giberelina; Inibição de giberelina; Manejo de flores; Metconazole; Regulador de crescimento das plantas; Variedade Palmer. |
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Thesagro: |
Floração; Manga; Regulador de Crescimento. |
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Thesaurus NAL: |
Growth regulators; Mangifera; Mangoes; Plant growth. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02277naa a2200373 a 4500
001 2121813
005 2020-04-23
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10341-019-00466-w$2DOI
100 1 $aCAVALCANTE, I. H. L.
245 $aMetconazole on inhibition of gibberellin biosynthesis and flowering management in mango.$h[electronic resource]
260 $c2020
520 $aGibberellins have been shown to suppress floral development in mango, thus farmers have used growth retardants, especially paclobutrazol, to inhibit gibberellin biosynthesis, but in many countries such as Brazil, this is the unique registered molecule, which affects sustainability of the mango industry. The objective of this study was to evaluate the effect of metconazole on gibberellin biosynthesis inhibition and carbohydrate accumulation in ?Palmer? mango grown in semi-arid conditions. The experiment was accomplished from 2015 to 2017 in an experimental orchard located in Petrolina, Pernambuco, Brazil. The experimental design were randomized blocks with five treatments, five replications and three plants per replication. The treatments consisted of metconazole (0, 0.7, 1.0 or 1.3g) and paclobutrazol (1.0g) application per linear meter of plant canopy. According to the results, metconazole efficiently inhibits gibberellin biosynthesis in mango, but it affects AG1+AG3 (Gibberellic Acid) and AG4 differently. Therefore, metconazole can potentially be used on mango flowering management, but further studies are required to determine specific management practices.
650 $aGrowth regulators
650 $aMangifera
650 $aMangoes
650 $aPlant growth
650 $aFloração
650 $aManga
650 $aRegulador de Crescimento
653 $aGiberelina
653 $aInibição de giberelina
653 $aManejo de flores
653 $aMetconazole
653 $aRegulador de crescimento das plantas
653 $aVariedade Palmer
700 1 $aSILVA, G. J. N. e
700 1 $aCAVACINI, J. A.
700 1 $aAMARIZ, R. A. e
700 1 $aFREITAS, S. T. de
700 1 $aSOUSA, K, A. O. de
700 1 $aSILVA, M. A. da
700 1 $aCUNHA, J. G. da
773 $tErwerbs-Obstbau$gv. 62, n. 1, p. 89-95, 2020.
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