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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
24/04/1996 |
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Data da última atualização: |
03/11/2005 |
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Autoria: |
SCHMITT, D. P. |
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Título: |
Population dynamics. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
In: RIGGS, R.D.; WRATHER, J.A., ed. Biology and management of the soybean cyst nematode. St. Paul: APS Press, 1992. |
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Páginas: |
p.51-59. |
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Idioma: |
Inglês |
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Conteúdo: |
A sound understanding of the population dynamics of Heterodera glycines requires much information on the biology of this pathogen. This knowledge also is important for management purposes, especially now when few effective nematicides are available and resistance has been overcome by genetically shifting populations. Since a low population density at planting is a prerequisite for high yield, manipulating the population of this pest of soybean is necessary. Clearly, long-term absence of a host will achieve low population densities. However, growers are often unable or unwilling to remove soybean from production for the time necessary to reduce the H. glycines population to low levels. This long period of non-host is required because the nematode survives well, especially overwinter. Elucidating the mechanism of winter dormancy should be useful in developing cultural practices that would enhance winter mortality. The key seems to be preventing diapause. The integration of several practices that prevent population increase of H. glycines should enable growers to achieve economically acceptible yields. |
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Palavras-Chave: |
Dinamica de populacao; Nematoide do cisto; Soybean cyst nematode. |
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Thesagro: |
Heterodera Glycines; Soja. |
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Thesaurus Nal: |
population dynamics. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01705naa a2200205 a 4500
001 1455994
005 2005-11-03
008 1992 bl uuuu u00u1 u #d
100 1 $aSCHMITT, D. P.
245 $aPopulation dynamics.
260 $c1992
300 $ap.51-59.
520 $aA sound understanding of the population dynamics of Heterodera glycines requires much information on the biology of this pathogen. This knowledge also is important for management purposes, especially now when few effective nematicides are available and resistance has been overcome by genetically shifting populations. Since a low population density at planting is a prerequisite for high yield, manipulating the population of this pest of soybean is necessary. Clearly, long-term absence of a host will achieve low population densities. However, growers are often unable or unwilling to remove soybean from production for the time necessary to reduce the H. glycines population to low levels. This long period of non-host is required because the nematode survives well, especially overwinter. Elucidating the mechanism of winter dormancy should be useful in developing cultural practices that would enhance winter mortality. The key seems to be preventing diapause. The integration of several practices that prevent population increase of H. glycines should enable growers to achieve economically acceptible yields.
650 $apopulation dynamics
650 $aHeterodera Glycines
650 $aSoja
653 $aDinamica de populacao
653 $aNematoide do cisto
653 $aSoybean cyst nematode
773 $tIn: RIGGS, R.D.; WRATHER, J.A., ed. Biology and management of the soybean cyst nematode. St. Paul: APS Press, 1992.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
19/11/1996 |
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Data da última atualização: |
06/09/2021 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
JOHNSON, E. H.; SANTA ROSA, J.; BERNE, M. E. A.; GUIMARAES, W. |
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Afiliação: |
JANETE SANTA ROSA, CNPC; CNPC. |
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Título: |
Seasonal and nutritional effects on serum antibody levels in goats. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON GOATS, 4., 1987, Brasília, DF. Proceedings... Brasília, DF: EMBRAPA-DDT, 1987. p. 1357-1358. Resumo 79. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Anticorpo sérico; Serum antibodies. |
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Thesagro: |
Caprino; Nutrição animal. |
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Thesaurus NAL: |
Animal nutrition; Antibodies; Goats. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/46869/1/RAC-Seasonal.pdf
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Marc: |
LEADER 00720nam a2200217 a 4500
001 1514661
005 2021-09-06
008 1987 bl uuuu u00u1 u #d
100 1 $aJOHNSON, E. H.
245 $aSeasonal and nutritional effects on serum antibody levels in goats.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE ON GOATS, 4., 1987, Brasília, DF. Proceedings... Brasília, DF: EMBRAPA-DDT, 1987. p. 1357-1358. Resumo 79.$c1358
650 $aAnimal nutrition
650 $aAntibodies
650 $aGoats
650 $aCaprino
650 $aNutrição animal
653 $aAnticorpo sérico
653 $aSerum antibodies
700 1 $aSANTA ROSA, J.
700 1 $aBERNE, M. E. A.
700 1 $aGUIMARAES, W.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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