Data/hora: 22/06/2024 03:13:35

Biblioteca(s): 	Embrapa Agricultura Digital.	
Data corrente: 	22/05/2009	
Data da última atualização: 	07/08/2013	
Autoria: 	SILVA, M. R. da; PEREIRA, D. G.; SEDIYAMA, T.; CRUZ, C. D.; REIS, M. S.; GOMES, J. L. L.; TEIXEIRA, R. de C.	
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.	
Título: 	Estimates of repeatability in the evaluation of resistance of soybean genotypes to powdery mildew.	
Ano de publicação: 	2006	
Fonte/Imprenta: 	Crop Breeding and Applied Biotechnology, Londrina, v. 6, n. 2, p. 160-166, June 2006.	
Idioma: 	Inglês	
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.	
Palavras-Chave: 	Repetibilidade; Variância fenotípica.	
Thesagro: 	Agricultura; Biotecnologia; Genética; Oídio; Soja.	
Thesaurus Nal: 	Agriculture; Biotechnology; Genetics.	
Categoria do assunto: 	G Melhoramento Genético	
Registro original: 	Embrapa Agricultura Digital (CNPTIA)	
Exemplares: 	CNPTIA - (12922-1) - ADD - AP - PP -  -  -  - DIS