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| 163. | | KRZYZANOWSKI, F. C.; MANDARINO, J. M. G.; FRANCA NETO, J. B.; VIEIRA, R. D.; KASTER, M. Metodologia para selecao de genotipos de soja com semente resistente ao dano mecanico conteudo de lignina no tegumento. In: REUNIAO DE PESQUISA DA SOJA DA REGIAO CENTRAL DO BRASIL, 20., 1998, Londrina. Ata e resumos. Londrina: EMBRAPA-CNPSo, 1998. p.394. (EMBRAPA-CNPSo. Documentos, 121).| Biblioteca(s): Embrapa Soja. |
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| 165. | | PÁDUA, G. P.; ZITO, R. K.; ARANTES, N. E.; FRANCA NETO, J. B. Produtividade da soja e qualidade fisiológica de semente com diferentes tamanhos. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 31., 2010, Brasília, DF. Resumos... Londrina: Embrapa Soja, 2010. p. 473-476. Editores técnicos: Adilson de Oliveira Junior, Odilon Ferreira Saraiva, Regina Maria Villas Bôas de Campo Leite, César de Castro, Jussara Flores de Oliveira Arbues, Wellington Cavalcanti.| Biblioteca(s): Embrapa Soja. |
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| 167. | | FRANCA NETO, J. B.; KRZYZANOWSKI, F. C.; COSTA, N. P.; HENNING, A. A. Previsao da emergencia em campo de lotes de sementes de soja, atraves dos resultados em vigor obtidos pelo teste de tetrazolio - 1999. In: REUNIAO DE PESQUISA DE SOJA DA REGIAO CENTRAL DO BRASIL, 22., 2000, Cuiaba. Resumos... Londrina: Embrapa Soja, 2000. p.198-199. (Embrapa Soja. Documentos, 144).| Biblioteca(s): Embrapa Soja. |
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| 171. | | TOLEDO, M. Z.; ISHIZUKA, M. S.; CAVARIANI, C.; FRANÇA-NETO, J. B.; PICOLI, L. B. Pre-harvest desiccation with glyphosate and quality of stored soybean seeds. Semina: Ciências Agrárias, Londrina, v. 35, n. 2, p. 765-774, mar./abr. 2014.| Biblioteca(s): Embrapa Soja. |
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| 173. | | FRANÇA-NETO, J. B.; HENNING, A. A.; PADUA, G. P.; KRZYZANOWSKI, F. C.; COSTA, N. P. Sensibilidade de cultivares de soja aos efeitos fitotoxicos causados pelo tratamento de sementes com o fungicida rhodiauram 500 SC contaminado. Informativo ABRATES, Londrina, v.11, n.2, p.151, set. 2001. Numero especial, ref. 210. Edicao de Resumos do XII Congresso Brasileiro de Sementes, 17 a 20 de Setembro de 2001, Curitiba, PR.| Biblioteca(s): Embrapa Soja. |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
16/12/2008 |
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Data da última atualização: |
26/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
KUMUDINI, S.; GODOY, C. V.; BOARD, J. E.; OMIELAN, J.; TOLLENAAR, M. |
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Afiliação: |
University of Kentucky; CLAUDIA VIEIRA GODOY, CNPSO; University Baton Rouge; University of Kentucky Lexington; University of Guelph. |
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Título: |
Mechanisms involved in soybean rust-induced yield reduction. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Crop Science, v. 48, n. 6, p. 2334-2342, Nov./Dec. 2008 |
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ISBN: |
10.2135/cropsci2008.01.0009 |
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Idioma: |
Inglês |
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Conteúdo: |
Soybean rust (SBR; caused by Phakopsora pachyrhizi Syd. and P. Syd.) leads to premature leaf loss and yield reduction. The objectives of this study were to assess effects of SBR infection on soybean [Glycine max (L.) Merrill] yield and to identify causes for the yield reduction. Experiments were conducted in the 2005-2006 and 2006-2007 growing seasons at Londrina, Brazil. The five treatments were SBR infection beginning at either (i) the R2 or (ii) R5 growth stages; nondiseased defoliation treatments to mimic the leaf loss when SBR started at either (iii) the R2 or (iv) R5 growth stages; and (v) a disease-free, nondefoliated control. The control and defoliation treatments were protected against SBR by fungicide applications. Disease severity, lesion area, and leaf area were monitored from R2 to R7. Biomass and seed yield were measured at maturity. Mean SBR-induced yield reductions were 67% when infection started at R2 and 37% when infection started at R5. Leaf loss alone reduced yield significantly in only one year and only when defoliation treatments were begun at R2 (31% in 2005-2006). Soybean rust-induced yield loss was attributable to (i) premature leaf loss, (ii) reduction in canopy green leaf area due to SBR lesions, (iii) reduction in dry matter accumulation per unit absorbed radiation by the nonlesion green leaf area, and (iv) reduction in harvest index. The response of harvest index was attributable to reduced seed set and seed mass resulting likely from SBR-induced reductions in rate of dry matter accumulation. MenosSoybean rust (SBR; caused by Phakopsora pachyrhizi Syd. and P. Syd.) leads to premature leaf loss and yield reduction. The objectives of this study were to assess effects of SBR infection on soybean [Glycine max (L.) Merrill] yield and to identify causes for the yield reduction. Experiments were conducted in the 2005-2006 and 2006-2007 growing seasons at Londrina, Brazil. The five treatments were SBR infection beginning at either (i) the R2 or (ii) R5 growth stages; nondiseased defoliation treatments to mimic the leaf loss when SBR started at either (iii) the R2 or (iv) R5 growth stages; and (v) a disease-free, nondefoliated control. The control and defoliation treatments were protected against SBR by fungicide applications. Disease severity, lesion area, and leaf area were monitored from R2 to R7. Biomass and seed yield were measured at maturity. Mean SBR-induced yield reductions were 67% when infection started at R2 and 37% when infection started at R5. Leaf loss alone reduced yield significantly in only one year and only when defoliation treatments were begun at R2 (31% in 2005-2006). Soybean rust-induced yield loss was attributable to (i) premature leaf loss, (ii) reduction in canopy green leaf area due to SBR lesions, (iii) reduction in dry matter accumulation per unit absorbed radiation by the nonlesion green leaf area, and (iv) reduction in harvest index. The response of harvest index was attributable to reduced seed set and seed mass resulting likely from SBR-induced... Mostrar Tudo |
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Palavras-Chave: |
Ferrugem da soja. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02033naa a2200181 a 4500
001 1471598
005 2017-07-26
008 2008 bl uuuu u00u1 u #d
100 1 $aKUMUDINI, S.
245 $aMechanisms involved in soybean rust-induced yield reduction.
260 $c2008
520 $aSoybean rust (SBR; caused by Phakopsora pachyrhizi Syd. and P. Syd.) leads to premature leaf loss and yield reduction. The objectives of this study were to assess effects of SBR infection on soybean [Glycine max (L.) Merrill] yield and to identify causes for the yield reduction. Experiments were conducted in the 2005-2006 and 2006-2007 growing seasons at Londrina, Brazil. The five treatments were SBR infection beginning at either (i) the R2 or (ii) R5 growth stages; nondiseased defoliation treatments to mimic the leaf loss when SBR started at either (iii) the R2 or (iv) R5 growth stages; and (v) a disease-free, nondefoliated control. The control and defoliation treatments were protected against SBR by fungicide applications. Disease severity, lesion area, and leaf area were monitored from R2 to R7. Biomass and seed yield were measured at maturity. Mean SBR-induced yield reductions were 67% when infection started at R2 and 37% when infection started at R5. Leaf loss alone reduced yield significantly in only one year and only when defoliation treatments were begun at R2 (31% in 2005-2006). Soybean rust-induced yield loss was attributable to (i) premature leaf loss, (ii) reduction in canopy green leaf area due to SBR lesions, (iii) reduction in dry matter accumulation per unit absorbed radiation by the nonlesion green leaf area, and (iv) reduction in harvest index. The response of harvest index was attributable to reduced seed set and seed mass resulting likely from SBR-induced reductions in rate of dry matter accumulation.
653 $aFerrugem da soja
700 1 $aGODOY, C. V.
700 1 $aBOARD, J. E.
700 1 $aOMIELAN, J.
700 1 $aTOLLENAAR, M.
773 $tCrop Science$gv. 48, n. 6, p. 2334-2342, Nov./Dec. 2008
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