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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
28/10/2003 |
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Data da última atualização: |
24/04/2018 |
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Autoria: |
JUNG, R.; TOLEDO, J. F. F. de; ARIAS, C. A. A. |
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Afiliação: |
RENATA JUNG, UEL; JOSÉ FRANCISCO FERRAZ DE TOLEDO, CNPSo; CARLOS ALBERTO ARRABAL ARIAS, CNPSO. |
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Título: |
Inheritance of soybean resistance to brown spot (Septoria glycines) in early greenhouse assessments. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 2, n. 1, p. 71-76, mar. 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
Brown spot disease occurs at the end of the soybean (Glycine max (L.) Merrill) cycle in all cropping regions in Brazil. Under severe conditions, end-of-cycle leaf diseases can reduce crop yield by over 20%. Although the development of resistant cultivars is the most efficient and economical way of disease control, little is known about the genetic mechanism controlling soybean resistance to brown spot. The objective of this study was to investigate the inheritance of resistance to this disease at an early stage (V3/V4) of plant development. The genotypes used were the FT-2 and Davis cultivars, considered resistant and susceptible, respectively, and the F2:3 generation derived from their cross. The experiment was carried out in a greenhouse in a completely randomized design, including 20 plants from each parent and five plants from each 116 F2:3 progenies. The soybean plants were inoculated at the V3/V4 stage and assessed for infection level on the 1st, 2nd and 3 rd leaves at 12, 19 and 26 days after inoculation. The greater susceptibility of Davis compared to FT-2 was confirmed. The F2:3 generation presented reaction to brown spot infection intermediate to the parents. F2:3 based broad sense heritability was predominantly of average magnitude indicating that in spite of the complexity of the trait, with high environmental influence, it is possible to obtain responses to early selection for brown spot resistance under greenhouse conditions when progenies are assessed. |
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Thesagro: |
Melhoramento; Soja. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/175936/1/c8128f42-4aa0-573c.pdf
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Marc: |
LEADER 02011naa a2200169 a 4500
001 1465782
005 2018-04-24
008 2002 bl uuuu u00u1 u #d
100 1 $aJUNG, R.
245 $aInheritance of soybean resistance to brown spot (Septoria glycines) in early greenhouse assessments.
260 $c2002
520 $aBrown spot disease occurs at the end of the soybean (Glycine max (L.) Merrill) cycle in all cropping regions in Brazil. Under severe conditions, end-of-cycle leaf diseases can reduce crop yield by over 20%. Although the development of resistant cultivars is the most efficient and economical way of disease control, little is known about the genetic mechanism controlling soybean resistance to brown spot. The objective of this study was to investigate the inheritance of resistance to this disease at an early stage (V3/V4) of plant development. The genotypes used were the FT-2 and Davis cultivars, considered resistant and susceptible, respectively, and the F2:3 generation derived from their cross. The experiment was carried out in a greenhouse in a completely randomized design, including 20 plants from each parent and five plants from each 116 F2:3 progenies. The soybean plants were inoculated at the V3/V4 stage and assessed for infection level on the 1st, 2nd and 3 rd leaves at 12, 19 and 26 days after inoculation. The greater susceptibility of Davis compared to FT-2 was confirmed. The F2:3 generation presented reaction to brown spot infection intermediate to the parents. F2:3 based broad sense heritability was predominantly of average magnitude indicating that in spite of the complexity of the trait, with high environmental influence, it is possible to obtain responses to early selection for brown spot resistance under greenhouse conditions when progenies are assessed.
650 $aMelhoramento
650 $aSoja
700 1 $aTOLEDO, J. F. F. de
700 1 $aARIAS, C. A. A.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 2, n. 1, p. 71-76, mar. 2002.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 254 | |
| 66. |  | ARIAS, C. A. A.; TOLEDO, J. F. F. de; LIMA, W. F.; OLIVEIRA, M. F. Estabilidade de producao em linhagens de soja, sob diferentes epocas de semeadura. Genetics and Molecular Biology, Ribeirao Preto, v. 21, n. 3, p. 231, set. 1998. Supplement.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 67. | | DESTRO, D.; ARIAS, E. R. A.; MIGLIORANZA, E.; TOLEDO, J. F. F. de; PALUDZYSZYN FILHO, E. Estadios de desenvolvimento do girassol para aplicacao de fitohormonios causadores de macho-esterilidade. Pesquisa Agropecuaria Brasileira, Brasilia, v. 28, n. 5, p.593-596, maio 1993.| Biblioteca(s): Embrapa Soja. |
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| 77. | | ARIAS, C. A. A.; TOLEDO, J. F. F. de; PÍPOLO, A. E.; RIBEIRO, A. S. Potencial produtivo de linhagens de soja desenvolvidas pelo programa de melhoramento para resistência a insetos. In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 3., 2005, Gramado. Anais... Passo Fundo: Embrapa Trigo; Sociedade Brasileira de Melhoramento de Plantas, 2005. 1 CD-ROM. Seção: Área 1 - Espécies Anuais - Resumos: Pdf.1628. Editado por Ana Christina Sagebin Albuquerque, Cláudia de Mori, Edson Iorczeski, João Carlos Haas, Paulo Fernando Bertagnolli.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 254 | |
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