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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Soja. |
Data corrente: |
06/11/2003 |
Data da última atualização: |
23/04/2018 |
Autoria: |
BROGIN, R. L.; ARIAS, C. A. A.; TOLEDO, J. F. F. de. |
Afiliação: |
RODRIGO LUIS BROGIN, CNPSO; CARLOS ALBERTO ARRABAL ARIAS, CNPSO; JOSÉ FRANCISCO FERRAZ DE TOLEDO, CNPSo. |
Título: |
Genetic control of soybean resistance to brown spot (Septoria glycines): first studies. |
Ano de publicação: |
2003 |
Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 3, n. 1, p. 35-44, mar. 2003. |
Idioma: |
Inglês |
Conteúdo: |
Knowledge of the genetic effects that control a trait is essential to direct the breeding program for gains in the selection process. The main objective of this study was to investigate the genetic control of soybean resistance to brown spot. Two tolerant cultivars (FT-2 and Dourados) and two susceptible cultivars (Davis and Paraná) and the segregant F2 and F3 generations derived from the crosses between these cultivars were assessed for reaction to the disease after inoculation. Genetic models were adjusted to the means and variances of the generations. It could be concluded that the trait is governed by various genes with lesser effect, has low to medium heritability and selection should be made always using progeny from the F3 generation and can be made during the initial stages of soybean growth, based on the mean of at least two trifoliate leaves. |
Palavras-Chave: |
Genetic effects; Soybean. |
Thesagro: |
Septoria Glycines; Soja. |
Thesaurus Nal: |
heritability. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/175860/1/c8128f42-9b09-dddd.pdf
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Marc: |
LEADER 01468naa a2200205 a 4500 001 1459254 005 2018-04-23 008 2003 bl uuuu u00u1 u #d 100 1 $aBROGIN, R. L. 245 $aGenetic control of soybean resistance to brown spot (Septoria glycines)$bfirst studies. 260 $c2003 520 $aKnowledge of the genetic effects that control a trait is essential to direct the breeding program for gains in the selection process. The main objective of this study was to investigate the genetic control of soybean resistance to brown spot. Two tolerant cultivars (FT-2 and Dourados) and two susceptible cultivars (Davis and Paraná) and the segregant F2 and F3 generations derived from the crosses between these cultivars were assessed for reaction to the disease after inoculation. Genetic models were adjusted to the means and variances of the generations. It could be concluded that the trait is governed by various genes with lesser effect, has low to medium heritability and selection should be made always using progeny from the F3 generation and can be made during the initial stages of soybean growth, based on the mean of at least two trifoliate leaves. 650 $aheritability 650 $aSeptoria Glycines 650 $aSoja 653 $aGenetic effects 653 $aSoybean 700 1 $aARIAS, C. A. A. 700 1 $aTOLEDO, J. F. F. de 773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 3, n. 1, p. 35-44, mar. 2003.
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Embrapa Soja (CNPSO) |
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