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Registro Completo |
Biblioteca(s): |
Embrapa Trigo; Embrapa Unidades Centrais. |
Data corrente: |
04/08/2016 |
Data da última atualização: |
04/08/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
COELHO, M. A. de O.; TORRES, G. A. M.; CECON, P. R.; SANTANA, F. M. |
Afiliação: |
MAURÍCIO ANTÔNIO DE OLIVEIRA COELHO, EPAMIG; GISELE ABIGAIL MONTAN TORRES, CNPT; PAULO ROBERTO CECON, UFV; FLAVIO MARTINS SANTANA, CNPT. |
Título: |
Sowing date reduces the incidence of wheat blast disease. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 51, n. 5, p. 631-637, maio 2016. |
ISSN: |
1678-3921 |
DOI: |
10.1590/S0100-204X2016000500025 |
Idioma: |
Inglês |
Conteúdo: |
The objective of this work was to assess the effect of sowing date on the intensity of wheat blast disease, as well as the yield losses caused by this disease in different wheat (Triticum aestivum) genotypes. The experiments were conducted in 2013 at the Sertãozinho experimental station of Empresa de Pesquisa Agropecuária de Minas Gerais (Epamig), in the municipality of Patos de Minas, in the state of Minas Gerais, Brazil. Fourteen wheat genotypes and two sowing dates were evaluated. The experimental design was a randomized complete block with three replicates. The evaluated variables were: incidence, severity, thousand grain weight (TGW), grain yield, and yield losses. A disease index (DI) was calculated, based both on the incidence and the severity of the disease, to measure blast intensity in wheat. The sowing date significantly affected DI, TGW, and grain yield. Significant linear correlations were observed between DI and yield losses (0.89), between losses and TGW (?0.85), and between losses and grain yield (?0.93). For wheat blast, DIs greater than or equal to 0.5 indicate potential yield losses equal to or greater than 70%. The EP063030 line and the MGS Brilhante and BRS 264 cultivars are the most tolerant to blast, when exposed to high disease pressure. |
Palavras-Chave: |
Disease; Índice da doença; Severidade; Tolerância. |
Thesagro: |
Brusone; Doença; Pyricularia Oryzae; Trigo; Triticum Aestivum. |
Thesaurus Nal: |
Magnaporthe oryzae; Stress tolerance; wheat. |
Categoria do assunto: |
-- H Saúde e Patologia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/146071/1/ID43727-2016PABv51n5p631.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/146135/1/Sowing-date-reduces.pdf
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Marc: |
LEADER 02170naa a2200325 a 4500 001 2050199 005 2016-08-04 008 2016 bl uuuu u00u1 u #d 022 $a1678-3921 024 7 $a10.1590/S0100-204X2016000500025$2DOI 100 1 $aCOELHO, M. A. de O. 245 $aSowing date reduces the incidence of wheat blast disease. 260 $c2016 520 $aThe objective of this work was to assess the effect of sowing date on the intensity of wheat blast disease, as well as the yield losses caused by this disease in different wheat (Triticum aestivum) genotypes. The experiments were conducted in 2013 at the Sertãozinho experimental station of Empresa de Pesquisa Agropecuária de Minas Gerais (Epamig), in the municipality of Patos de Minas, in the state of Minas Gerais, Brazil. Fourteen wheat genotypes and two sowing dates were evaluated. The experimental design was a randomized complete block with three replicates. The evaluated variables were: incidence, severity, thousand grain weight (TGW), grain yield, and yield losses. A disease index (DI) was calculated, based both on the incidence and the severity of the disease, to measure blast intensity in wheat. The sowing date significantly affected DI, TGW, and grain yield. Significant linear correlations were observed between DI and yield losses (0.89), between losses and TGW (?0.85), and between losses and grain yield (?0.93). For wheat blast, DIs greater than or equal to 0.5 indicate potential yield losses equal to or greater than 70%. The EP063030 line and the MGS Brilhante and BRS 264 cultivars are the most tolerant to blast, when exposed to high disease pressure. 650 $aMagnaporthe oryzae 650 $aStress tolerance 650 $awheat 650 $aBrusone 650 $aDoença 650 $aPyricularia Oryzae 650 $aTrigo 650 $aTriticum Aestivum 653 $aDisease 653 $aÍndice da doença 653 $aSeveridade 653 $aTolerância 700 1 $aTORRES, G. A. M. 700 1 $aCECON, P. R. 700 1 $aSANTANA, F. M. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 51, n. 5, p. 631-637, maio 2016.
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Embrapa Trigo (CNPT) |
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1. | | COELHO, M. A. de O.; TORRES, G. A. M.; CECON, P. R.; SANTANA, F. M. Sowing date reduces the incidence of wheat blast disease. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 51, n. 5, p. 631-637, maio 2016.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Trigo; Embrapa Unidades Centrais. |
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