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Registro Completo |
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
30/07/2002 |
Data da última atualização: |
19/02/2021 |
Autoria: |
RIBEIRO, A. S. |
Afiliação: |
UEPAE PELOTAS. |
Título: |
Efeitos do espaçamento entre linhas sobre a intensidade de brusone em arroz. |
Ano de publicação: |
1982 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, v.17, n.11, p. 1691-1694, nov. 1982. |
Idioma: |
Português |
Notas: |
Título em inglês: Effects of row spacing in the rice blast disease attack. |
Conteúdo: |
RESUMO - Em 1981182, foram realizados dois experimentos com as cultivares Bluebelle, EEA 406, Caloro, Starbonnet, BR-IRGA 410 e Fanny. Realizou-se a semeadura nos espaçamentos de 10, 20 e 30 cm entre linhas, sob condições de cultivo de sequeiro em ripado e de irrigado em campo. 0 objetivo foi o de estudar os efeitos dos espaçamentos sobre a intensidade da brusone (Pyricularia oryzae Cav.). Os resultados obtidos mostraram que a intensidade dos sintomas de brusone, nas folhas, diminuiu com o aumento do espaçamento para 30 cm, diferindo de nível entre cultivares, em função do grau de suscetibilidade de cada uma. Por outro lado, as maiores intensidades de brusone nas panículas corresponderam aos maiores índices de brusone nas folhas, no período vegetativo. As menores foram observadas nas cultivares Bluebelle, Caloro e EEA 406. Nas cultivares Fanny (nota 9), BR-IRGA 410 (nota 3) e Starbonnet (nota 1) não houve diferença de intensidade de brusone na panícula, entre os espaçamentos de 10 e de 30 cm. ABSTRACT - In 1981/82, two trials were carried out with the following rice cultivars: Bluebelle, EEA 406, Caloro, Starbonnet, BR-IRGA 410 and Fanny. The objective was to study the effects of row spacing (10 cm, 20 cm and 30 cm) on the rice blast Pyricularia oryzae Cav, disease attack. One trial was conducted under lowland condition and the other one under upland condition. The results showed that the leaf blast symptoms decreased at 30 cm row spacing. The attacks had differences between cultivars according to susceptibility of each one. The panicle blast incidence was correlated with the leaf blast attack at vegetative growth stage. Low grades of blast disease were observed in the cultivars Bluebelle, Caloro and EEA 406. the cultivar Fanny (grade 9), BR-IRGA 410 (grade 3) and Starbonnet (grade 1) did not show any differences between 10 cm and 30 cm row spacing at panicle blast attack MenosRESUMO - Em 1981182, foram realizados dois experimentos com as cultivares Bluebelle, EEA 406, Caloro, Starbonnet, BR-IRGA 410 e Fanny. Realizou-se a semeadura nos espaçamentos de 10, 20 e 30 cm entre linhas, sob condições de cultivo de sequeiro em ripado e de irrigado em campo. 0 objetivo foi o de estudar os efeitos dos espaçamentos sobre a intensidade da brusone (Pyricularia oryzae Cav.). Os resultados obtidos mostraram que a intensidade dos sintomas de brusone, nas folhas, diminuiu com o aumento do espaçamento para 30 cm, diferindo de nível entre cultivares, em função do grau de suscetibilidade de cada uma. Por outro lado, as maiores intensidades de brusone nas panículas corresponderam aos maiores índices de brusone nas folhas, no período vegetativo. As menores foram observadas nas cultivares Bluebelle, Caloro e EEA 406. Nas cultivares Fanny (nota 9), BR-IRGA 410 (nota 3) e Starbonnet (nota 1) não houve diferença de intensidade de brusone na panícula, entre os espaçamentos de 10 e de 30 cm. ABSTRACT - In 1981/82, two trials were carried out with the following rice cultivars: Bluebelle, EEA 406, Caloro, Starbonnet, BR-IRGA 410 and Fanny. The objective was to study the effects of row spacing (10 cm, 20 cm and 30 cm) on the rice blast Pyricularia oryzae Cav, disease attack. One trial was conducted under lowland condition and the other one under upland condition. The results showed that the leaf blast symptoms decreased at 30 cm row spacing. The attacks had differences between... Mostrar Tudo |
Thesagro: |
Arroz; Brusone; Epidemiologia; Semeadura. |
Thesaurus Nal: |
Blast disease; Epidemiology; Pyricularia; Rice. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/221346/1/Efeitos-espacamento-linhas-1982.pdf
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Marc: |
LEADER 02606naa a2200229 a 4500 001 1107764 005 2021-02-19 008 1982 bl uuuu u00u1 u #d 100 1 $aRIBEIRO, A. S. 245 $aEfeitos do espaçamento entre linhas sobre a intensidade de brusone em arroz. 260 $c1982 500 $aTítulo em inglês: Effects of row spacing in the rice blast disease attack. 520 $aRESUMO - Em 1981182, foram realizados dois experimentos com as cultivares Bluebelle, EEA 406, Caloro, Starbonnet, BR-IRGA 410 e Fanny. Realizou-se a semeadura nos espaçamentos de 10, 20 e 30 cm entre linhas, sob condições de cultivo de sequeiro em ripado e de irrigado em campo. 0 objetivo foi o de estudar os efeitos dos espaçamentos sobre a intensidade da brusone (Pyricularia oryzae Cav.). Os resultados obtidos mostraram que a intensidade dos sintomas de brusone, nas folhas, diminuiu com o aumento do espaçamento para 30 cm, diferindo de nível entre cultivares, em função do grau de suscetibilidade de cada uma. Por outro lado, as maiores intensidades de brusone nas panículas corresponderam aos maiores índices de brusone nas folhas, no período vegetativo. As menores foram observadas nas cultivares Bluebelle, Caloro e EEA 406. Nas cultivares Fanny (nota 9), BR-IRGA 410 (nota 3) e Starbonnet (nota 1) não houve diferença de intensidade de brusone na panícula, entre os espaçamentos de 10 e de 30 cm. ABSTRACT - In 1981/82, two trials were carried out with the following rice cultivars: Bluebelle, EEA 406, Caloro, Starbonnet, BR-IRGA 410 and Fanny. The objective was to study the effects of row spacing (10 cm, 20 cm and 30 cm) on the rice blast Pyricularia oryzae Cav, disease attack. One trial was conducted under lowland condition and the other one under upland condition. The results showed that the leaf blast symptoms decreased at 30 cm row spacing. The attacks had differences between cultivars according to susceptibility of each one. The panicle blast incidence was correlated with the leaf blast attack at vegetative growth stage. Low grades of blast disease were observed in the cultivars Bluebelle, Caloro and EEA 406. the cultivar Fanny (grade 9), BR-IRGA 410 (grade 3) and Starbonnet (grade 1) did not show any differences between 10 cm and 30 cm row spacing at panicle blast attack 650 $aBlast disease 650 $aEpidemiology 650 $aPyricularia 650 $aRice 650 $aArroz 650 $aBrusone 650 $aEpidemiologia 650 $aSemeadura 773 $tPesquisa Agropecuária Brasileira, Brasília$gv.17, n.11, p. 1691-1694, nov. 1982.
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Embrapa Unidades Centrais (AI-SEDE) |
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Biblioteca(s): |
Embrapa Gado de Leite; Embrapa Milho e Sorgo. |
Data corrente: |
01/02/2022 |
Data da última atualização: |
27/04/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
VIDAL, A.-K. F.; DAHER, R. F.; FREITAS, R. S.; STIDA, W. S.; LEDO, F. J. da S.; SILVA, V. B. da; ENTRINGER, G. C.; TARDIN, F. D.; GRAVINA, G. de A.; VIVAS, M.; SOUZA, A. G. de; AMBRÓSIO, M.; SANTANA, J.-G. da S.; FARIASA, J. E. C. |
Afiliação: |
ANA-KESIA F. VIDAL, Universidade Estadual do Norte Fluminense Darcy Ribeiro; ROGÉRIO F. DAHER, Universidade Estadual do Norte Fluminense Darcy Ribeiro; RAFAEL S. FREITAS, Universidade Estadual do Norte Fluminense Darcy Ribeiro; WANESSA F. STIDA, Universidade Estadual do Norte Fluminense Darcy Ribeiro; FRANCISCO JOSE DA SILVA LEDO, CNPGL; VERÔNICA B. DA SILVA, Universidade Federal do Piauí; GEOVANA C. ENTRINGER, Universidade Estadual do Norte Fluminense Darcy Ribeiro; FLAVIO DESSAUNE TARDIN, CNPMS; GERALDO DE A. GRAVINA, Universidade Estadual do Norte Fluminense Darcy Ribeiro; MARCELO VIVAS, Universidade Estadual do Norte Fluminense Darcy Ribeiro; ALEXANDRE G. DE SOUZA, Universidade Estadual do Norte Fluminense Darcy Ribeiro; MOISÉS AMBRÓSIO, Universidade Estadual do Norte Fluminense Darcy Ribeiro; JOSEFA-GRASIELA DA S. SANTANA, Universidade Estadual do Norte Fluminense Darcy Ribeiro; JOÃO E. C. FARIAS, Universidade Estadual do Norte Fluminense Darcy Ribeiro. |
Título: |
Growth curve in elephant grass genotypes based on morpho-agronomic traits for energy production. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Chilean Journal of Agricultural Research, v. 82, n. 1, p. 78-87, 2022. |
DOI: |
https://doi.org/10.4067/S0718-58392022000100078 |
Idioma: |
Inglês |
Conteúdo: |
The elephant grass (Cenchrus purpureus (Schumach.) Morrone) is one of the species with great prominence for energy production because of its favorable traits, such as high yield and short cycle, combined with several biomass quality characteristics. Therefore, this study intended to evaluate the morpho-agronomic traits of eight elephant grass genotypes under different cutting ages. A randomized block design with three replicates was applied to the experiment, and plots were composed of a 12 m long line divided into six subplots for each of the bimonthly cuts. Eight genotypes were evaluated in the plots, and the cutting ages (2, 4, 6, 8, 10, and 12-mo) were analyzed in the subplots. The following traits were assessed: DM yield, (DMY) percentage of DM, and average plant height (HEI). All genetic-statistical analyses were conducted using the Genes Program. The evaluated genotypes showed nonsignificant differences, indicating that, for the evaluated traits, these genotypes are genetically similar. Most genotypes presented linear effect of 2nd degree in the two assessment cuts, pointing they did not reach their maximum capacity of DMY in the time interval of the evaluated cuts. The maximum %DM achieved for the most genotypes occurred at about 9-mo age, while genotypes Vruckwona and BAG-86 at about 10-mo age. The maximum points for HEI trait were between 8 and 10-mo age. Increasing the cutting interval leads to increases in DM yield, with the 10-mo cutting age being the most efficient, resulting in higher yields. MenosThe elephant grass (Cenchrus purpureus (Schumach.) Morrone) is one of the species with great prominence for energy production because of its favorable traits, such as high yield and short cycle, combined with several biomass quality characteristics. Therefore, this study intended to evaluate the morpho-agronomic traits of eight elephant grass genotypes under different cutting ages. A randomized block design with three replicates was applied to the experiment, and plots were composed of a 12 m long line divided into six subplots for each of the bimonthly cuts. Eight genotypes were evaluated in the plots, and the cutting ages (2, 4, 6, 8, 10, and 12-mo) were analyzed in the subplots. The following traits were assessed: DM yield, (DMY) percentage of DM, and average plant height (HEI). All genetic-statistical analyses were conducted using the Genes Program. The evaluated genotypes showed nonsignificant differences, indicating that, for the evaluated traits, these genotypes are genetically similar. Most genotypes presented linear effect of 2nd degree in the two assessment cuts, pointing they did not reach their maximum capacity of DMY in the time interval of the evaluated cuts. The maximum %DM achieved for the most genotypes occurred at about 9-mo age, while genotypes Vruckwona and BAG-86 at about 10-mo age. The maximum points for HEI trait were between 8 and 10-mo age. Increasing the cutting interval leads to increases in DM yield, with the 10-mo cutting age being the most effic... Mostrar Tudo |
Palavras-Chave: |
Cenchrus purpureus; Idade de corte. |
Thesagro: |
Bioenergia; Capim Elefante; Curva de Crescimento; Matéria Seca; Produção. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/230774/1/Growth-curve.pdf
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Marc: |
LEADER 02645naa a2200373 a 4500 001 2139535 005 2023-04-27 008 2022 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.4067/S0718-58392022000100078$2DOI 100 1 $aVIDAL, A.-K. F. 245 $aGrowth curve in elephant grass genotypes based on morpho-agronomic traits for energy production.$h[electronic resource] 260 $c2022 520 $aThe elephant grass (Cenchrus purpureus (Schumach.) Morrone) is one of the species with great prominence for energy production because of its favorable traits, such as high yield and short cycle, combined with several biomass quality characteristics. Therefore, this study intended to evaluate the morpho-agronomic traits of eight elephant grass genotypes under different cutting ages. A randomized block design with three replicates was applied to the experiment, and plots were composed of a 12 m long line divided into six subplots for each of the bimonthly cuts. Eight genotypes were evaluated in the plots, and the cutting ages (2, 4, 6, 8, 10, and 12-mo) were analyzed in the subplots. The following traits were assessed: DM yield, (DMY) percentage of DM, and average plant height (HEI). All genetic-statistical analyses were conducted using the Genes Program. The evaluated genotypes showed nonsignificant differences, indicating that, for the evaluated traits, these genotypes are genetically similar. Most genotypes presented linear effect of 2nd degree in the two assessment cuts, pointing they did not reach their maximum capacity of DMY in the time interval of the evaluated cuts. The maximum %DM achieved for the most genotypes occurred at about 9-mo age, while genotypes Vruckwona and BAG-86 at about 10-mo age. The maximum points for HEI trait were between 8 and 10-mo age. Increasing the cutting interval leads to increases in DM yield, with the 10-mo cutting age being the most efficient, resulting in higher yields. 650 $aBioenergia 650 $aCapim Elefante 650 $aCurva de Crescimento 650 $aMatéria Seca 650 $aProdução 653 $aCenchrus purpureus 653 $aIdade de corte 700 1 $aDAHER, R. F. 700 1 $aFREITAS, R. S. 700 1 $aSTIDA, W. S. 700 1 $aLEDO, F. J. da S. 700 1 $aSILVA, V. B. da 700 1 $aENTRINGER, G. C. 700 1 $aTARDIN, F. D. 700 1 $aGRAVINA, G. de A. 700 1 $aVIVAS, M. 700 1 $aSOUZA, A. G. de 700 1 $aAMBRÓSIO, M. 700 1 $aSANTANA, J.-G. da S. 700 1 $aFARIASA, J. E. C. 773 $tChilean Journal of Agricultural Research$gv. 82, n. 1, p. 78-87, 2022.
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