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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
27/08/1997 |
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Data da última atualização: |
11/06/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
VIANA, P. A.; GUIMARAES, P. E. O. |
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Afiliação: |
PAULO AFONSO VIANA, CNPMS; PAULO EVARISTO DE O GUIMARAES, CNPMS. |
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Título: |
Maize resistance to the lesser cornstalk borer and fall armyworm in Brazil. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: INTERNATIONAL SYMPOSIUM ON INSECT RESISTANT MAIZE: recent advances and utilization, 1994, Mexico. Proceedings.. Mexico: CIMMYT, 1997. p. 112-116 |
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Idioma: |
Inglês |
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Conteúdo: |
Maize, Zea mays, is an important cereal crop in Brazil, It is extensively grown throughout the country for food grain, feed, and fodder purposes. Among many factors, insects pests play a major role in limiting maize yields. The lesser cornstalk borer (LCB) and the fall armyworm (FAW) have been considered the most important field pests, being key pests in many of the areas where the crop is grown. The FAW and the LCB have been reared at EMBRAPA/CNPMS to undertake artificaial infestation for large-scale studies, including screeening for resistance. Several genetic materials were selected for resistance. Sources of resistance such as CMS 23 and cms 24 to FAW, CMS 15 and CMS 454 to LCB are being used in breeding for resistance. The resistance mechanisms to FAWwere studied on four selected maize genotypes. Larvae reared on CMS 14C required longer to develop to the pupal and adult stages and had reduced larval nad pupal weights. The genotypes Zapalote Chico had fewer larvae feeding on leaf sections than other genotypes tested. The analysis of a diallel cross indicated that gene action condicioning resistance to the FAW appears to be due to additive and non-additive effects. |
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Palavras-Chave: |
Brasil; Fall armyworm; Lagarta-do-cartucho; Lesser cornstalk borer; Maize; Pest; Resistance. |
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Thesagro: |
Elasmopalpus Lignosellus; Entomologia; Milho; Praga; Resistência; Spodoptera Frugiperda; Zea Mays. |
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Thesaurus Nal: |
Brazil; entomology. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/39385/1/Maize-resistance.pdf
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Marc: |
LEADER 02129nam a2200313 a 4500
001 1475998
005 2018-06-11
008 1997 bl uuuu u00u1 u #d
100 1 $aVIANA, P. A.
245 $aMaize resistance to the lesser cornstalk borer and fall armyworm in Brazil.$h[electronic resource]
260 $aIn: INTERNATIONAL SYMPOSIUM ON INSECT RESISTANT MAIZE: recent advances and utilization, 1994, Mexico. Proceedings.. Mexico: CIMMYT, 1997. p. 112-116$c1997
520 $aMaize, Zea mays, is an important cereal crop in Brazil, It is extensively grown throughout the country for food grain, feed, and fodder purposes. Among many factors, insects pests play a major role in limiting maize yields. The lesser cornstalk borer (LCB) and the fall armyworm (FAW) have been considered the most important field pests, being key pests in many of the areas where the crop is grown. The FAW and the LCB have been reared at EMBRAPA/CNPMS to undertake artificaial infestation for large-scale studies, including screeening for resistance. Several genetic materials were selected for resistance. Sources of resistance such as CMS 23 and cms 24 to FAW, CMS 15 and CMS 454 to LCB are being used in breeding for resistance. The resistance mechanisms to FAWwere studied on four selected maize genotypes. Larvae reared on CMS 14C required longer to develop to the pupal and adult stages and had reduced larval nad pupal weights. The genotypes Zapalote Chico had fewer larvae feeding on leaf sections than other genotypes tested. The analysis of a diallel cross indicated that gene action condicioning resistance to the FAW appears to be due to additive and non-additive effects.
650 $aBrazil
650 $aentomology
650 $aElasmopalpus Lignosellus
650 $aEntomologia
650 $aMilho
650 $aPraga
650 $aResistência
650 $aSpodoptera Frugiperda
650 $aZea Mays
653 $aBrasil
653 $aFall armyworm
653 $aLagarta-do-cartucho
653 $aLesser cornstalk borer
653 $aMaize
653 $aPest
653 $aResistance
700 1 $aGUIMARAES, P. E. O.
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Embrapa Milho e Sorgo (CNPMS) |
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