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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
22/05/2009 |
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Data da última atualização: |
07/08/2013 |
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Autoria: |
SILVA, M. R. da; PEREIRA, D. G.; SEDIYAMA, T.; CRUZ, C. D.; REIS, M. S.; GOMES, J. L. L.; TEIXEIRA, R. de C. |
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Afiliação: |
MARILDA RAMOS DA SILVA, UESB; DERVAL GOMES PEREIRA, UESB; TUNEO SEDIYAMA, UFV; COSME DAMIÃO CRUZ, UFV; MÚCIO SILVA REIS, UFV; JOSÉ LUIZ LOPES GOMES, UFV; RITA DE CÁSSIA TEIXEIRA, UFV. |
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Título: |
Estimates of repeatability in the evaluation of resistance of soybean genotypes to powdery mildew. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 6, n. 2, p. 160-166, June 2006. |
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Idioma: |
Inglês |
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Conteúdo: |
Soybean is worldwide a crop of great importance, however, with its expansion, diseases causing great yield loss such as the powdery mildew surge (Erisyphe diffusa U. Braun & S. Takam). Objective of the present study was to estimate the ideal number of evaluations of the resistance of soybean genotypes to powdery mildew by means of repeatability studies with the traits: ILA (infection of the leaf area), ILS (infection of the leaf blade surface) and ILU (infection of the leaf underside), using the treatments no control - NC, partial control - PC (fungicide 80% sulfur at ILA >= 40%) and total control - TC (presence of symptoms). Only trait ILA presented estimates of repeatability (ANOVA and principal components), with 85-90% of stability in 3 or 4 measurements (PC and NC methods). These results and the high values found for R2 indicate that selection based on this parameter is possible. |
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Palavras-Chave: |
Repetibilidade; Variância fenotípica. |
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Thesagro: |
Agricultura; Biotecnologia; Genética; Oídio; Soja. |
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Thesaurus Nal: |
Agriculture; Biotechnology; Genetics. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 01771naa a2200313 a 4500
001 1048968
005 2013-08-07
008 2006 bl uuuu u00u1 u #d
100 1 $aSILVA, M. R. da
245 $aEstimates of repeatability in the evaluation of resistance of soybean genotypes to powdery mildew.
260 $c2006
520 $aSoybean is worldwide a crop of great importance, however, with its expansion, diseases causing great yield loss such as the powdery mildew surge (Erisyphe diffusa U. Braun & S. Takam). Objective of the present study was to estimate the ideal number of evaluations of the resistance of soybean genotypes to powdery mildew by means of repeatability studies with the traits: ILA (infection of the leaf area), ILS (infection of the leaf blade surface) and ILU (infection of the leaf underside), using the treatments no control - NC, partial control - PC (fungicide 80% sulfur at ILA >= 40%) and total control - TC (presence of symptoms). Only trait ILA presented estimates of repeatability (ANOVA and principal components), with 85-90% of stability in 3 or 4 measurements (PC and NC methods). These results and the high values found for R2 indicate that selection based on this parameter is possible.
650 $aAgriculture
650 $aBiotechnology
650 $aGenetics
650 $aAgricultura
650 $aBiotecnologia
650 $aGenética
650 $aOídio
650 $aSoja
653 $aRepetibilidade
653 $aVariância fenotípica
700 1 $aPEREIRA, D. G.
700 1 $aSEDIYAMA, T.
700 1 $aCRUZ, C. D.
700 1 $aREIS, M. S.
700 1 $aGOMES, J. L. L.
700 1 $aTEIXEIRA, R. de C.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 6, n. 2, p. 160-166, June 2006.
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Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
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