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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
21/09/1998 |
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Data da última atualização: |
11/09/2007 |
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Autoria: |
RODIGHERI, H. R.; MEDRADO, M. J. S.; FOWLER, R. S.; LOURENCO, R. S.; PINTO, A. F.; PEREIRA, L. C.; MOREIRA, J. |
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Afiliação: |
Rodigheri, Medrado, Fowler, Lourenco, pesquisadores da Embrapa Florestas. |
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Título: |
Pesquisa participativa de sistemas agroflorestais para agricultores de Wenceslau Braz, Paraná. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
In: ENCONTRO DA SOCIEDADE BRASILEIRA DE SISTEMAS DE PRODUCAO, 3., 1998, Florianopolis. Anais. Florianopolis: Sociedade Brasileira de Sistemas de Producao, 1998. CD Rom. |
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Idioma: |
Português |
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Palavras-Chave: |
Agrosilvicultural systems; Pequena propriedade; Sistema agroflorestal. |
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Thesaurus Nal: |
small farms. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00801naa a2200229 a 4500
001 1303475
005 2007-09-11
008 1998 bl --- 0-- u #d
100 1 $aRODIGHERI, H. R.
245 $aPesquisa participativa de sistemas agroflorestais para agricultores de Wenceslau Braz, Paraná.
260 $c1998
650 $asmall farms
653 $aAgrosilvicultural systems
653 $aPequena propriedade
653 $aSistema agroflorestal
700 1 $aMEDRADO, M. J. S.
700 1 $aFOWLER, R. S.
700 1 $aLOURENCO, R. S.
700 1 $aPINTO, A. F.
700 1 $aPEREIRA, L. C.
700 1 $aMOREIRA, J.
773 $tIn: ENCONTRO DA SOCIEDADE BRASILEIRA DE SISTEMAS DE PRODUCAO, 3., 1998, Florianopolis. Anais. Florianopolis: Sociedade Brasileira de Sistemas de Producao, 1998. CD Rom.
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Registro original: |
Embrapa Florestas (CNPF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
23/05/2016 |
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Data da última atualização: |
17/02/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
VILAS BOAS, S. A.; HOHENFELD, C. S.; OLIVEIRA, S. A. S. de; SANTOS, V. da S.; OLIVEIRA, E. J. de. |
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Afiliação: |
SANDIELLE ARAUJO VILAS BOAS, UFRB; CAMILA SANTIAGO HOHENFELD, UFRB; SAULO ALVES SANTOS DE OLIVEIRA, CNPMF; VANDERLEI DA SILVA SANTOS, CNPMF; EDER JORGE DE OLIVEIRA, CNPMF. |
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Título: |
Sources of resistance to cassava root rot caused by Fusarium spp.: a genotypic approach. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Euphytica, n. 209, p. 237?251, March, 2016. |
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ISSN: |
1573-5060 |
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DOI: |
10.1007/s10681-016-1676-4 |
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Idioma: |
Inglês |
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Conteúdo: |
The development of cassava cultivars resistant to root rot (PRM) is a viable strategy for disease control. The objectives of this study were to identify stable sources of PRM resistance and to estimate genetic parameters. Inoculation with Fusarium spp. (Fspp) species was performed in 697 accessions and five environments that were then assessed for symptom severity in the peel (córtex and periderm) and root pulp. The environment and genotypes was considered to have random effects via analysis of mixed models. The resistance stability, resistance adaptability, and resistance stability ? adaptability for Fspp were assessed using the harmonic means of genotypic value (Si), relative performance of genotypic values (Ai), and harmonic mean of the relative performance of genotypic value (Zi), respectively. About 10 % of the accessions were considered resistant to Fspp. Discrepancies in the accession classification for PRM resistance in the root peel and pulp indicate the existence of diferente defense mechanisms in these parts of the root. The individual heritability and mean genotypic heritability through environments were of low magnitude, resulting in medium accuracy selective magnitude. Despite the existence of strong genotype 9 environment interaction (G 9 E), accessions with high adaptability and stability were identified. The 22 accessions resistant to PRM in the peel and pulp enabled significant and balanced disease reduction on Zi estimates (-48.18 and -46.42 %, respectively). The lack of complete resistance and continuous distribution of PRM suggest quantitative inheritance of resistance. The Zi method is a useful approach in the capitalization of G 9 E interaction for disease resistance. MenosThe development of cassava cultivars resistant to root rot (PRM) is a viable strategy for disease control. The objectives of this study were to identify stable sources of PRM resistance and to estimate genetic parameters. Inoculation with Fusarium spp. (Fspp) species was performed in 697 accessions and five environments that were then assessed for symptom severity in the peel (córtex and periderm) and root pulp. The environment and genotypes was considered to have random effects via analysis of mixed models. The resistance stability, resistance adaptability, and resistance stability ? adaptability for Fspp were assessed using the harmonic means of genotypic value (Si), relative performance of genotypic values (Ai), and harmonic mean of the relative performance of genotypic value (Zi), respectively. About 10 % of the accessions were considered resistant to Fspp. Discrepancies in the accession classification for PRM resistance in the root peel and pulp indicate the existence of diferente defense mechanisms in these parts of the root. The individual heritability and mean genotypic heritability through environments were of low magnitude, resulting in medium accuracy selective magnitude. Despite the existence of strong genotype 9 environment interaction (G 9 E), accessions with high adaptability and stability were identified. The 22 accessions resistant to PRM in the peel and pulp enabled significant and balanced disease reduction on Zi estimates (-48.18 and -46.42 %, respectivel... Mostrar Tudo |
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Palavras-Chave: |
Plant diseases. |
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Thesagro: |
Doença de planta; Mandioca. |
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Thesaurus NAL: |
Cassava. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02428naa a2200241 a 4500
001 2045502
005 2017-02-17
008 2016 bl uuuu u00u1 u #d
022 $a1573-5060
024 7 $a10.1007/s10681-016-1676-4$2DOI
100 1 $aVILAS BOAS, S. A.
245 $aSources of resistance to cassava root rot caused by Fusarium spp.$ba genotypic approach.$h[electronic resource]
260 $c2016
520 $aThe development of cassava cultivars resistant to root rot (PRM) is a viable strategy for disease control. The objectives of this study were to identify stable sources of PRM resistance and to estimate genetic parameters. Inoculation with Fusarium spp. (Fspp) species was performed in 697 accessions and five environments that were then assessed for symptom severity in the peel (córtex and periderm) and root pulp. The environment and genotypes was considered to have random effects via analysis of mixed models. The resistance stability, resistance adaptability, and resistance stability ? adaptability for Fspp were assessed using the harmonic means of genotypic value (Si), relative performance of genotypic values (Ai), and harmonic mean of the relative performance of genotypic value (Zi), respectively. About 10 % of the accessions were considered resistant to Fspp. Discrepancies in the accession classification for PRM resistance in the root peel and pulp indicate the existence of diferente defense mechanisms in these parts of the root. The individual heritability and mean genotypic heritability through environments were of low magnitude, resulting in medium accuracy selective magnitude. Despite the existence of strong genotype 9 environment interaction (G 9 E), accessions with high adaptability and stability were identified. The 22 accessions resistant to PRM in the peel and pulp enabled significant and balanced disease reduction on Zi estimates (-48.18 and -46.42 %, respectively). The lack of complete resistance and continuous distribution of PRM suggest quantitative inheritance of resistance. The Zi method is a useful approach in the capitalization of G 9 E interaction for disease resistance.
650 $aCassava
650 $aDoença de planta
650 $aMandioca
653 $aPlant diseases
700 1 $aHOHENFELD, C. S.
700 1 $aOLIVEIRA, S. A. S. de
700 1 $aSANTOS, V. da S.
700 1 $aOLIVEIRA, E. J. de
773 $tEuphytica$gn. 209, p. 237?251, March, 2016.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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