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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
06/10/1992 |
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Data da última atualização: |
28/10/2004 |
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Autoria: |
HENNING, A. A.; FRANCA NETO, J. B. |
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Afiliação: |
EMBRAPA-CNPSo, Londrina, PR. |
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Título: |
Physiological race and sources of resistance to downy mildew (Plasmopara halstedii (Farl.) Berl. & de Toni) in Brazil. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
In: CONFERENCIA INTERNACIONAL DE GIRASOL, 11., 1985, Mar del Plata, Actas. Mar del Plata: ASAGIR/ISA, 1985. |
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Volume: |
t.2 |
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Páginas: |
p.407-409. |
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Idioma: |
Inglês |
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Conteúdo: |
The occurrence of the sunflower downy mildew in Brazil was observed in 1982. This study was carried out to determine the physiological race and to find out possible sources of resistance to P. halstedii. Identification of the race was made using the breeding lines AD 66, (resistant to European race I), RHA 271 and RHA 274, resistant to European race I and American race II, and cultivar Issanka, susceptible to both races Seeds were artificially inoculated with oospore suspension obtained from field infected leaves, and planted in the greenhouse in trays containing nonsterilized soil. The disease was observed only on plants of Issanka and AD 66, indicating that the race of P. halstedii occurring in Brazil is the American race II. Among the several lines, varieties and hybrids tested, Issanka, Cordobes, Contissol 112, Progress, PGIB, PIIDR, KLM, 3GR, 2GB x Nains and 6B x Ilnissei were susceptible. Only the hybrid DK 180 wasresistant to the disease. |
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Palavras-Chave: |
Brasil; Disease; Fitopatologia; Fungus; Phytopathology; Resistance; Sunflower. |
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Thesagro: |
Doença; Fungo; Girassol; Plasmopara Halstedii; Resistência. |
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Thesaurus NAL: |
Brazil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01840naa a2200313 a 4500
001 1453032
005 2004-10-28
008 1985 bl uuuu u00u1 u #d
100 1 $aHENNING, A. A.
245 $aPhysiological race and sources of resistance to downy mildew (Plasmopara halstedii (Farl.) Berl. & de Toni) in Brazil.
260 $c1985
300 $ap.407-409. t.2
490 $vt.2
520 $aThe occurrence of the sunflower downy mildew in Brazil was observed in 1982. This study was carried out to determine the physiological race and to find out possible sources of resistance to P. halstedii. Identification of the race was made using the breeding lines AD 66, (resistant to European race I), RHA 271 and RHA 274, resistant to European race I and American race II, and cultivar Issanka, susceptible to both races Seeds were artificially inoculated with oospore suspension obtained from field infected leaves, and planted in the greenhouse in trays containing nonsterilized soil. The disease was observed only on plants of Issanka and AD 66, indicating that the race of P. halstedii occurring in Brazil is the American race II. Among the several lines, varieties and hybrids tested, Issanka, Cordobes, Contissol 112, Progress, PGIB, PIIDR, KLM, 3GR, 2GB x Nains and 6B x Ilnissei were susceptible. Only the hybrid DK 180 wasresistant to the disease.
650 $aBrazil
650 $aDoença
650 $aFungo
650 $aGirassol
650 $aPlasmopara Halstedii
650 $aResistência
653 $aBrasil
653 $aDisease
653 $aFitopatologia
653 $aFungus
653 $aPhytopathology
653 $aResistance
653 $aSunflower
700 1 $aFRANCA NETO, J. B.
773 $tIn: CONFERENCIA INTERNACIONAL DE GIRASOL, 11., 1985, Mar del Plata, Actas. Mar del Plata: ASAGIR/ISA, 1985.
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