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Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
26/08/2019 |
Data da última atualização: |
26/08/2019 |
Tipo da produção científica: |
Publicação em Anais de Congresso |
Autoria: |
SILVA, D. G.; ZAMBOLIM, L.; SAKIYAMA, N. S.; PEREIRA, A. A.; FONSECA, A. F. A. da.; VALE, F. X. R. do |
Afiliação: |
Dalza G. Silva, UFV; Laércio Zambolim, UFV; Ney S. Sakiyama, UFV; Antonio A. Pereira, EPAMIG; Aymbiré Francisco Almeida da Fonseca, Incaper/Embrapa Café; Francisco X. R. do Vale, UFV. |
Título: |
Resistência de clones de Coffea. canephora VAR. conillon a quatro raças de Hemileia va statrix BERK et Br. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
IN: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 1., 2000, Poços de Caldas. Resumos Expandidos. Brasília, DF: Embrapa Café/MINASPLAN, 2000 |
Idioma: |
Português |
Conteúdo: |
Foram avaliados, quanto aos tipos de reação às raças I, II, III e XIII de Hemileia vastatrix, 33 clones de Coffea canephora componentes de variedades clonais, sendo nove com ciclo de maturação precoce da variedade EMCAPA 8111; treze com ciclo de maturação intermediário da variedade EMCAPA 8121 e onze de ciclo de maturação tardio da variedade EMCAPA 8131. Empregou-se escala de notas de 1 a 6, sendo que graus médios de doença menores que 4 corresponderam a reação de resistência e maiores ou igual a 4, de suscetibilidade. Utilizou-se o intervalo de confiança do grau médio de doença como medida de estabilidade de reação dos clones em relação às raças inoculadas. Os clones 154 (precoce), 132, 149 e 201 (intermediários), e, 100 e 143 (tardios) mostraram-se resistentes às quatro raças do patógeno. Entretanto, observou-se variabilidade de reação entre repetições de 12 clones analisados. Os resultados mostraram que as três variedades clonais são constituídas por clones resistentes e suscetíveis às quatro raças do patógeno, indicando a necessidade de estudos mais detalhados, em relação à obtenção de clones com maior nível e durabilidade de resistência à H. vastatrix.
The reaction of 33 clones of Coffea canephora was examined to the races I, II, III and XIII of Hemileia vastatrix. A scale of notes from 1 to 6 was used and values below 4, corresponded to the resistant reaction and larger or equal to 4, susceptiblly. The interval of confidence of the mean of disease was used as a measure of stability of reaction of the clones in relation to the race. The clones 154 (early), 132, 149 and 201 (intermediate), and, 100 and 143 (late) shown resistance to the four races of the pathogen. However, variability in the reation was observed among the 12 analyzed clones. The results showed that the three clonal varieties have resistance and susceptible clones to the four races of the pathogen, indicating the need for more detailed studies, in regard to obtain clones with high level of resistance to H. vastatrix. MenosForam avaliados, quanto aos tipos de reação às raças I, II, III e XIII de Hemileia vastatrix, 33 clones de Coffea canephora componentes de variedades clonais, sendo nove com ciclo de maturação precoce da variedade EMCAPA 8111; treze com ciclo de maturação intermediário da variedade EMCAPA 8121 e onze de ciclo de maturação tardio da variedade EMCAPA 8131. Empregou-se escala de notas de 1 a 6, sendo que graus médios de doença menores que 4 corresponderam a reação de resistência e maiores ou igual a 4, de suscetibilidade. Utilizou-se o intervalo de confiança do grau médio de doença como medida de estabilidade de reação dos clones em relação às raças inoculadas. Os clones 154 (precoce), 132, 149 e 201 (intermediários), e, 100 e 143 (tardios) mostraram-se resistentes às quatro raças do patógeno. Entretanto, observou-se variabilidade de reação entre repetições de 12 clones analisados. Os resultados mostraram que as três variedades clonais são constituídas por clones resistentes e suscetíveis às quatro raças do patógeno, indicando a necessidade de estudos mais detalhados, em relação à obtenção de clones com maior nível e durabilidade de resistência à H. vastatrix.
The reaction of 33 clones of Coffea canephora was examined to the races I, II, III and XIII of Hemileia vastatrix. A scale of notes from 1 to 6 was used and values below 4, corresponded to the resistant reaction and larger or equal to 4, susceptiblly. The interval of confidence of the mean of disease was used as a measur... Mostrar Tudo |
Palavras-Chave: |
Café Conilon. |
Thesagro: |
Clone; Coffea Canephora. |
Categoria do assunto: |
-- |
URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/123456789/3758/1/resistencia-clones-conilon-fonseca.pdf
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Marc: |
LEADER 02792nam a2200205 a 4500 001 1021616 005 2019-08-26 008 2000 bl uuuu u01u1 u #d 100 1 $aSILVA, D. G. 245 $aResistência de clones de Coffea. canephora VAR. conillon a quatro raças de Hemileia va statrix BERK et Br.$h[electronic resource] 260 $aIN: SIMPÓSIO DE PESQUISA DOS CAFÉS DO BRASIL, 1., 2000, Poços de Caldas. Resumos Expandidos. Brasília, DF: Embrapa Café/MINASPLAN$c2000 520 $aForam avaliados, quanto aos tipos de reação às raças I, II, III e XIII de Hemileia vastatrix, 33 clones de Coffea canephora componentes de variedades clonais, sendo nove com ciclo de maturação precoce da variedade EMCAPA 8111; treze com ciclo de maturação intermediário da variedade EMCAPA 8121 e onze de ciclo de maturação tardio da variedade EMCAPA 8131. Empregou-se escala de notas de 1 a 6, sendo que graus médios de doença menores que 4 corresponderam a reação de resistência e maiores ou igual a 4, de suscetibilidade. Utilizou-se o intervalo de confiança do grau médio de doença como medida de estabilidade de reação dos clones em relação às raças inoculadas. Os clones 154 (precoce), 132, 149 e 201 (intermediários), e, 100 e 143 (tardios) mostraram-se resistentes às quatro raças do patógeno. Entretanto, observou-se variabilidade de reação entre repetições de 12 clones analisados. Os resultados mostraram que as três variedades clonais são constituídas por clones resistentes e suscetíveis às quatro raças do patógeno, indicando a necessidade de estudos mais detalhados, em relação à obtenção de clones com maior nível e durabilidade de resistência à H. vastatrix. The reaction of 33 clones of Coffea canephora was examined to the races I, II, III and XIII of Hemileia vastatrix. A scale of notes from 1 to 6 was used and values below 4, corresponded to the resistant reaction and larger or equal to 4, susceptiblly. The interval of confidence of the mean of disease was used as a measure of stability of reaction of the clones in relation to the race. The clones 154 (early), 132, 149 and 201 (intermediate), and, 100 and 143 (late) shown resistance to the four races of the pathogen. However, variability in the reation was observed among the 12 analyzed clones. The results showed that the three clonal varieties have resistance and susceptible clones to the four races of the pathogen, indicating the need for more detailed studies, in regard to obtain clones with high level of resistance to H. vastatrix. 650 $aClone 650 $aCoffea Canephora 653 $aCafé Conilon 700 1 $aZAMBOLIM, L. 700 1 $aSAKIYAMA, N. S. 700 1 $aPEREIRA, A. A. 700 1 $aFONSECA, A. F. A. da. 700 1 $aVALE, F. X. R. do
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Biblioteca Rui Tendinha (BRT) |
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Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
19/11/2020 |
Data da última atualização: |
19/11/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
CRESPO, A. M.; SOUZA, M. N.; FAVARATO, L. F.; GUARÇONI, R. G.; ARAÚJO, J. B. S.; RANGEL, O. J. P.; SOUZA, J. L. de. |
Afiliação: |
Aline Marchiori Crespo, Incaper; Maurício Novaes Souza, IFEZ Alegre; Luiz Fernando Favarato, Incaper; Rogerio Carvalho Guarçoni, Incaper; João Batista Silva Araújo, Incaper; Otacílio José Passos Rangel, IFES Alegre; Jacimar Luis de Souza, Incaper. |
Título: |
Survey of the floristic composition and the structure of spontaneous vegetation present at green corn cultivated in organic no-tillage system. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
IJAERS, v. 7, n. 11, p. 184-193, nov. 2020. |
Idioma: |
Inglês |
Conteúdo: |
The control of spontaneous plants is one of the biggest challenges faced by organic no-tillage system (NTS). Thus, the use of cultural practices that help on it becomes relevant. The objective of this research was to evaluate the population density, the level of infestation and fresh and dry weight of
spontaneous plants community of the green corn cultivated in organic NTS. The trial was conducted in a randomized block design, with six replications and five treatments, consisting of three soil coverings in the organic NTS and organic and conventional systems using intensive soil tillage without covering. For soil covered treatments was used millet as grass specie and sunn hemp as leguminous specie as well as the intercropping between both species. The green corn (AG 1051 hybrid) was sowed at 1.0 m. between rows and 0.20 m. between plants. Infestation, density and fresh weight and dry weight evaluations of spontaneous plants were performed on the V5 (five developed leaves) stage of corn. The use of single millet straw and intercropped straw provided a reduction of the infestation percentage and absolute spontaneous plants density. Both organic and conventional intensive soil tillage systems without covering showed higher relative density for the specie Galinsoga quadriradiata. The highest relative densities in organic NTS were attributed to Amaranthus spp., C. rotundus and Oxalis spp.. The percentage of infestation by spontaneous plants did not reach the level of economic damage in any of the treatments studied since the average productivity of ears without straw had been within the Brazilian average (9,000 to 15,000 Kg ha MenosThe control of spontaneous plants is one of the biggest challenges faced by organic no-tillage system (NTS). Thus, the use of cultural practices that help on it becomes relevant. The objective of this research was to evaluate the population density, the level of infestation and fresh and dry weight of
spontaneous plants community of the green corn cultivated in organic NTS. The trial was conducted in a randomized block design, with six replications and five treatments, consisting of three soil coverings in the organic NTS and organic and conventional systems using intensive soil tillage without covering. For soil covered treatments was used millet as grass specie and sunn hemp as leguminous specie as well as the intercropping between both species. The green corn (AG 1051 hybrid) was sowed at 1.0 m. between rows and 0.20 m. between plants. Infestation, density and fresh weight and dry weight evaluations of spontaneous plants were performed on the V5 (five developed leaves) stage of corn. The use of single millet straw and intercropped straw provided a reduction of the infestation percentage and absolute spontaneous plants density. Both organic and conventional intensive soil tillage systems without covering showed higher relative density for the specie Galinsoga quadriradiata. The highest relative densities in organic NTS were attributed to Amaranthus spp., C. rotundus and Oxalis spp.. The percentage of infestation by spontaneous plants did not reach the level of economic dam... Mostrar Tudo |
Thesagro: |
Agricultura Orgânica; Crotalária Juncea; Erva Daninha; Pennisetum Americanum; Plantio Direto. |
Categoria do assunto: |
A Sistemas de Cultivo |
URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/123456789/4120/1/crespo-plantio-direto.pdf
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Marc: |
LEADER 02446naa a2200253 a 4500 001 1022965 005 2020-11-19 008 2020 bl uuuu u00u1 u #d 100 1 $aCRESPO, A. M. 245 $aSurvey of the floristic composition and the structure of spontaneous vegetation present at green corn cultivated in organic no-tillage system.$h[electronic resource] 260 $c2020 520 $aThe control of spontaneous plants is one of the biggest challenges faced by organic no-tillage system (NTS). Thus, the use of cultural practices that help on it becomes relevant. The objective of this research was to evaluate the population density, the level of infestation and fresh and dry weight of spontaneous plants community of the green corn cultivated in organic NTS. The trial was conducted in a randomized block design, with six replications and five treatments, consisting of three soil coverings in the organic NTS and organic and conventional systems using intensive soil tillage without covering. For soil covered treatments was used millet as grass specie and sunn hemp as leguminous specie as well as the intercropping between both species. The green corn (AG 1051 hybrid) was sowed at 1.0 m. between rows and 0.20 m. between plants. Infestation, density and fresh weight and dry weight evaluations of spontaneous plants were performed on the V5 (five developed leaves) stage of corn. The use of single millet straw and intercropped straw provided a reduction of the infestation percentage and absolute spontaneous plants density. Both organic and conventional intensive soil tillage systems without covering showed higher relative density for the specie Galinsoga quadriradiata. The highest relative densities in organic NTS were attributed to Amaranthus spp., C. rotundus and Oxalis spp.. The percentage of infestation by spontaneous plants did not reach the level of economic damage in any of the treatments studied since the average productivity of ears without straw had been within the Brazilian average (9,000 to 15,000 Kg ha 650 $aAgricultura Orgânica 650 $aCrotalária Juncea 650 $aErva Daninha 650 $aPennisetum Americanum 650 $aPlantio Direto 700 1 $aSOUZA, M. N. 700 1 $aFAVARATO, L. F. 700 1 $aGUARÇONI, R. G. 700 1 $aARAÚJO, J. B. S. 700 1 $aRANGEL, O. J. P. 700 1 $aSOUZA, J. L. de. 773 $tIJAERS$gv. 7, n. 11, p. 184-193, nov. 2020.
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