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| Registros recuperados : 230 | |
| 66. |  | DALL'AGNOL, A. Soja, alimento e energia. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 29., 2007, Campo Grande, MS. Ata... Londrina: Embrapa Soja, 2008. p. 63-65. (Embrapa Soja. Documentos, 294). Palestra. Organizado por Odilon Ferreira Saraiva, Fábio Alvares de Oliveira, Regina Maria Villas Bôas de Campos Leite, Simone Ery Grosskopf.| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 230 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
08/10/1992 |
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Data da última atualização: |
07/03/2013 |
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Autoria: |
DALL'AGNOL, A.; ANTONIO, H. |
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Título: |
Response of five plant species to three densities of Meloidogyne incognita, M. javanica, M. arenaria according to three parameters of evaluation. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
[S.l.: s.n.], 1984. |
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Páginas: |
nao paginado. |
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Idioma: |
Inglês |
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Notas: |
Trabalho apresentado: First International Congress of Nematology, Guelph, Ontario, Canada, 1984. |
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Conteúdo: |
To determine the relative efficiency of a quick visual gall score method as compared to other evaluation techniques in identifying the degree of resistance of black beans, cotton, sunflower, tomato and soybean, plants were inoculated with 1, 2 and 5 x 104 eggs and larvae of Meloidogyne incognita, M. javanica and M. arenaria. Plants varied widely in their susceptibility to the three nematode specis. With few exceptions, plants rated as resistant or susceptible based on the visual gall score method, had similar reactions as compared to egg mass index or total nematode counts. correlation coefficients were highly significant. The final nematode population increased as the inoculum density increased, but the rate of reproduction decreased as the initial nematode population increased. Highly resistant plants did not react to five fold increase in inoculum density. Percentage of nematodes collected from the soil among tested plants, ranged from 16 to 46 (M. incognita), 23 to 58 (M. javanica) and 12 to 79% (M. arenaria). These percentages were particularly high for cotton (43, 58 and 79%, respectively, for M. incognita, M. javanica and M. arenaria). In general, the highest and lowest percenages in the soil were observed among highly resistant and highly susceptible plants, respectively. Results indicate thate the visual gall score is a reliable method to evaluate plant genotypes for root knot nematode resitance and is very useful to screen large number of genotypes due to its simplicity and rapidity. MenosTo determine the relative efficiency of a quick visual gall score method as compared to other evaluation techniques in identifying the degree of resistance of black beans, cotton, sunflower, tomato and soybean, plants were inoculated with 1, 2 and 5 x 104 eggs and larvae of Meloidogyne incognita, M. javanica and M. arenaria. Plants varied widely in their susceptibility to the three nematode specis. With few exceptions, plants rated as resistant or susceptible based on the visual gall score method, had similar reactions as compared to egg mass index or total nematode counts. correlation coefficients were highly significant. The final nematode population increased as the inoculum density increased, but the rate of reproduction decreased as the initial nematode population increased. Highly resistant plants did not react to five fold increase in inoculum density. Percentage of nematodes collected from the soil among tested plants, ranged from 16 to 46 (M. incognita), 23 to 58 (M. javanica) and 12 to 79% (M. arenaria). These percentages were particularly high for cotton (43, 58 and 79%, respectively, for M. incognita, M. javanica and M. arenaria). In general, the highest and lowest percenages in the soil were observed among highly resistant and highly susceptible plants, respectively. Results indicate thate the visual gall score is a reliable method to evaluate plant genotypes for root knot nematode resitance and is very useful to screen large number of genotypes due to its simpl... Mostrar Tudo |
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Palavras-Chave: |
Cultivar Andrews; Cultivar Mineira; Nematode; Soybean; Variety. |
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Thesagro: |
Melhoramento; Meloidogyne Arenaria; Meloidogyne Incognita; Meloidogyne Javanica; Nematóide; Soja. |
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Thesaurus NAL: |
breeding. |
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Categoria do assunto: |
-- |
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Marc: |
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001 1445314
005 2013-03-07
008 1984 bl uuuu u0uu1 u #d
100 1 $aDALL'AGNOL, A.
245 $aResponse of five plant species to three densities of Meloidogyne incognita, M. javanica, M. arenaria according to three parameters of evaluation.
260 $a[S.l.: s.n.]$c1984
300 $anao paginado.
500 $aTrabalho apresentado: First International Congress of Nematology, Guelph, Ontario, Canada, 1984.
520 $aTo determine the relative efficiency of a quick visual gall score method as compared to other evaluation techniques in identifying the degree of resistance of black beans, cotton, sunflower, tomato and soybean, plants were inoculated with 1, 2 and 5 x 104 eggs and larvae of Meloidogyne incognita, M. javanica and M. arenaria. Plants varied widely in their susceptibility to the three nematode specis. With few exceptions, plants rated as resistant or susceptible based on the visual gall score method, had similar reactions as compared to egg mass index or total nematode counts. correlation coefficients were highly significant. The final nematode population increased as the inoculum density increased, but the rate of reproduction decreased as the initial nematode population increased. Highly resistant plants did not react to five fold increase in inoculum density. Percentage of nematodes collected from the soil among tested plants, ranged from 16 to 46 (M. incognita), 23 to 58 (M. javanica) and 12 to 79% (M. arenaria). These percentages were particularly high for cotton (43, 58 and 79%, respectively, for M. incognita, M. javanica and M. arenaria). In general, the highest and lowest percenages in the soil were observed among highly resistant and highly susceptible plants, respectively. Results indicate thate the visual gall score is a reliable method to evaluate plant genotypes for root knot nematode resitance and is very useful to screen large number of genotypes due to its simplicity and rapidity.
650 $abreeding
650 $aMelhoramento
650 $aMeloidogyne Arenaria
650 $aMeloidogyne Incognita
650 $aMeloidogyne Javanica
650 $aNematóide
650 $aSoja
653 $aCultivar Andrews
653 $aCultivar Mineira
653 $aNematode
653 $aSoybean
653 $aVariety
700 1 $aANTONIO, H.
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