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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
12/03/2004 |
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Data da última atualização: |
04/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RODRIGUES, F. Á.; VALE, F. X. R.; DATNOFF, L. E.; PRABHU, A. S.; KORNDÖRFER, G. H. |
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Afiliação: |
ANNE SITARAMA PRABHU, CNPAF. |
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Título: |
Effect of rice growth stages and silicon on sheath blight development. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Phytopathology, v. 93, n. 3, p. 256-261, Mar. 2003. |
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DOI: |
10.1094/PHYTO.2003.93.3.256 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to determine the effect of silicon (Si) and rice growth stages on tissue susceptibility to sheath blight (Rhizoctonia solani Kühn) under controlled conditions. Rice plants (cv. Rio Formoso) were grown in pots containing low-Si soil amended with Si at 0, 0.48, 0.96, 1.44, and 1.92 g pot(-1) and inoculated with R. solani at the following days after emergence: 45 (four-leaf stage), 65 (eight-leaf stage), 85 (tillering), 117 (booting), and 130 (panicle exsertion). For plants inoculated with R. solani at all growth stages, Si concentration in straw increased as rate of Si increased from 0 to 1.92 g pot(-1). Concentration of calcium in the straw did not differ among plant growth stages. Although incubation period was not affected by the amount of Si added to the soil, this variable was shorter at booting and panicle exsertion stages. As the rates of Si increased in the soil, the total number of sheath blight lesions on sheaths and total area under the relative lesion extension curve decreased at all plant growth stages. The severity of sheath blight was lower at booting and panicle exsertion stages as the rates of Si increased in the soil. In general, plants grown in Si-nonamended pots and inoculated with R. solani were more vulnerable to infection at all growth stages, but especially at 45 days after emergence. Plant dry weights for inoculated plants increased as the Si rates increased from 0 to 1.92 g pot(-1). The greatest dry weight increases occurred for plants inoculated at booting and panicle exsertion stages. Si fertilization is a promising method for controlling sheath blight in areas where soil is Si deficient and when cultivars that exhibit an acceptable level of resistance to sheath blight are not available for commercial use. MenosThe objective of this study was to determine the effect of silicon (Si) and rice growth stages on tissue susceptibility to sheath blight (Rhizoctonia solani Kühn) under controlled conditions. Rice plants (cv. Rio Formoso) were grown in pots containing low-Si soil amended with Si at 0, 0.48, 0.96, 1.44, and 1.92 g pot(-1) and inoculated with R. solani at the following days after emergence: 45 (four-leaf stage), 65 (eight-leaf stage), 85 (tillering), 117 (booting), and 130 (panicle exsertion). For plants inoculated with R. solani at all growth stages, Si concentration in straw increased as rate of Si increased from 0 to 1.92 g pot(-1). Concentration of calcium in the straw did not differ among plant growth stages. Although incubation period was not affected by the amount of Si added to the soil, this variable was shorter at booting and panicle exsertion stages. As the rates of Si increased in the soil, the total number of sheath blight lesions on sheaths and total area under the relative lesion extension curve decreased at all plant growth stages. The severity of sheath blight was lower at booting and panicle exsertion stages as the rates of Si increased in the soil. In general, plants grown in Si-nonamended pots and inoculated with R. solani were more vulnerable to infection at all growth stages, but especially at 45 days after emergence. Plant dry weights for inoculated plants increased as the Si rates increased from 0 to 1.92 g pot(-1). The greatest dry weight increases occ... Mostrar Tudo |
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Thesagro: |
Arroz; Cálcio; Oryza Sativa; Rhizoctonia Solani. |
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Thesaurus Nal: |
Calcium silicate; Rice; Silicon. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02530naa a2200265 a 4500
001 1211956
005 2022-05-04
008 2003 bl uuuu u00u1 u #d
024 7 $a10.1094/PHYTO.2003.93.3.256$2DOI
100 1 $aRODRIGUES, F. Á.
245 $aEffect of rice growth stages and silicon on sheath blight development.$h[electronic resource]
260 $c2003
520 $aThe objective of this study was to determine the effect of silicon (Si) and rice growth stages on tissue susceptibility to sheath blight (Rhizoctonia solani Kühn) under controlled conditions. Rice plants (cv. Rio Formoso) were grown in pots containing low-Si soil amended with Si at 0, 0.48, 0.96, 1.44, and 1.92 g pot(-1) and inoculated with R. solani at the following days after emergence: 45 (four-leaf stage), 65 (eight-leaf stage), 85 (tillering), 117 (booting), and 130 (panicle exsertion). For plants inoculated with R. solani at all growth stages, Si concentration in straw increased as rate of Si increased from 0 to 1.92 g pot(-1). Concentration of calcium in the straw did not differ among plant growth stages. Although incubation period was not affected by the amount of Si added to the soil, this variable was shorter at booting and panicle exsertion stages. As the rates of Si increased in the soil, the total number of sheath blight lesions on sheaths and total area under the relative lesion extension curve decreased at all plant growth stages. The severity of sheath blight was lower at booting and panicle exsertion stages as the rates of Si increased in the soil. In general, plants grown in Si-nonamended pots and inoculated with R. solani were more vulnerable to infection at all growth stages, but especially at 45 days after emergence. Plant dry weights for inoculated plants increased as the Si rates increased from 0 to 1.92 g pot(-1). The greatest dry weight increases occurred for plants inoculated at booting and panicle exsertion stages. Si fertilization is a promising method for controlling sheath blight in areas where soil is Si deficient and when cultivars that exhibit an acceptable level of resistance to sheath blight are not available for commercial use.
650 $aCalcium silicate
650 $aRice
650 $aSilicon
650 $aArroz
650 $aCálcio
650 $aOryza Sativa
650 $aRhizoctonia Solani
700 1 $aVALE, F. X. R.
700 1 $aDATNOFF, L. E.
700 1 $aPRABHU, A. S.
700 1 $aKORNDÖRFER, G. H.
773 $tPhytopathology$gv. 93, n. 3, p. 256-261, Mar. 2003.
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Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
05/10/2022 |
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Data da última atualização: |
13/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ALVES, C. P.; JARDIM, A. M. da Ro F.; ARAÚJO JÚNIOR, C. do N.; SOUZA, L. S. B. de; ARAUJO, G. G. L. de; SOUZA, C. A. A. de; SALVADOR, K. R. da S.; LEITE, R. M. C.; PINHEIRO, A. G.; SILVA, T. G. F. da. |
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Afiliação: |
CLEBER PEREIRA ALVES, Federal Rural University of Pernambuco, Serra Talhada, PE; ALEXANDRE MANIÇOBA DA ROSA FERRAZ JARDIM, Federal Rural University of Pernambuco, Recife; GEORGE DO NASCIMENTO ARAÚJO JÚNIOR, Federal Rural University of Pernambuco, Recife; LUCIANA SANDRA BASTOS DE SOUZA, Federal Rural University of Pernambuco, Serra Talhada; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; CARLOS ANDRÉ ALVES DE SOUZA, Federal Rural University of Pernambuco, Recife; KAIQUE RENAN DA SILVA SALVADOR, Federal Rural University of Pernambuco, Serra Talhada; RENAN MATHEUS CORDEIRO LEITE, Federal Rural University of Pernambuco, Serra Talhada; ANTONIO GEBSON PINHEIRO, Federal Rural University of Pernambuco, Recife; THIERES GEORGE FREIRE DA SILVA, Federal Rural University of Pernambuco, Serra Talhada. |
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Título: |
How to enhance the agronomic performance of cactus-sorghum intercropped system: planting configurations, density and orientation. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Industrial Crops and Products, v. 184, 115059, 2022. |
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DOI: |
https://doi.org/10.1016/j.indcrop.2022.115059 |
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Idioma: |
Inglês |
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Conteúdo: |
Clarifying cultivation techniques and making production systems more efficient are practices that have been much sought after in agricultural systems in recent decades. In this context, the forage yield, biological efficiency, and competitive ability, of different cultivation strategies for intercropping forage cactus and sorghum were determined in biosaline production systems from 2018 to 2020 in Brazil. Four experiments were carried out, comprising: 1) cropping configurations for the forage cactus-sorghum intercropping system; 2 and 3) planting densities for the forage cactus intercropped with sorghum with an east-west and north-south row orientation, respectively; and 4) planting densities for the forage cactus and sorghum. Each experiment used a randomised block design with four replications. The intercropped forage cactus and sorghum showed higher productivity than the monocropped systems. The indices of biological efficiency (LER, ATER, LEC and SPI with mean values equal to 1.6, 1.8, 0.6 and 29.0, respectively) and competitive ability (ALGY in average 870.6) show better performance under the intercropped system compared to the single crops. The increased planting density resulted in an increase in productivity under the intercropped forage cactus-sorghum system (on average an increase of 69.4% dry matter). In turn, the orientation had no influence on the productivity of the intercropping system but offered better conditions for the forage cactus when cultivation was in an east-west direction (21.7 Mg ha 1 of dry matter) compared to north-south (17.5 Mg ha 1 of dry matter). Intercropping forage cactus and sorghum using biosaline agriculture is an excellent alternative for a production system in semi-arid environments, especially at higher planting densities (50,000 and 100,000 plants ha 1). MenosClarifying cultivation techniques and making production systems more efficient are practices that have been much sought after in agricultural systems in recent decades. In this context, the forage yield, biological efficiency, and competitive ability, of different cultivation strategies for intercropping forage cactus and sorghum were determined in biosaline production systems from 2018 to 2020 in Brazil. Four experiments were carried out, comprising: 1) cropping configurations for the forage cactus-sorghum intercropping system; 2 and 3) planting densities for the forage cactus intercropped with sorghum with an east-west and north-south row orientation, respectively; and 4) planting densities for the forage cactus and sorghum. Each experiment used a randomised block design with four replications. The intercropped forage cactus and sorghum showed higher productivity than the monocropped systems. The indices of biological efficiency (LER, ATER, LEC and SPI with mean values equal to 1.6, 1.8, 0.6 and 29.0, respectively) and competitive ability (ALGY in average 870.6) show better performance under the intercropped system compared to the single crops. The increased planting density resulted in an increase in productivity under the intercropped forage cactus-sorghum system (on average an increase of 69.4% dry matter). In turn, the orientation had no influence on the productivity of the intercropping system but offered better conditions for the forage cactus when cultivation was in... Mostrar Tudo |
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Palavras-Chave: |
Rendimento da colheita; Resiliência agrícola. |
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Thesagro: |
Nopalea Cochenillifera; Palma Forrageira; Pastagem; Pastagem Consorciada; Sorgo. |
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Thesaurus NAL: |
Crop yield; Opuntia stricta; Sorghum bicolor subsp. bicolor. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1147124/1/How-to-enhance-the-agronomic-performance-of-cactus-sorghum-2022.pdf
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Marc: |
LEADER 03014naa a2200361 a 4500
001 2147124
005 2023-01-13
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.indcrop.2022.115059$2DOI
100 1 $aALVES, C. P.
245 $aHow to enhance the agronomic performance of cactus-sorghum intercropped system$bplanting configurations, density and orientation.$h[electronic resource]
260 $c2022
520 $aClarifying cultivation techniques and making production systems more efficient are practices that have been much sought after in agricultural systems in recent decades. In this context, the forage yield, biological efficiency, and competitive ability, of different cultivation strategies for intercropping forage cactus and sorghum were determined in biosaline production systems from 2018 to 2020 in Brazil. Four experiments were carried out, comprising: 1) cropping configurations for the forage cactus-sorghum intercropping system; 2 and 3) planting densities for the forage cactus intercropped with sorghum with an east-west and north-south row orientation, respectively; and 4) planting densities for the forage cactus and sorghum. Each experiment used a randomised block design with four replications. The intercropped forage cactus and sorghum showed higher productivity than the monocropped systems. The indices of biological efficiency (LER, ATER, LEC and SPI with mean values equal to 1.6, 1.8, 0.6 and 29.0, respectively) and competitive ability (ALGY in average 870.6) show better performance under the intercropped system compared to the single crops. The increased planting density resulted in an increase in productivity under the intercropped forage cactus-sorghum system (on average an increase of 69.4% dry matter). In turn, the orientation had no influence on the productivity of the intercropping system but offered better conditions for the forage cactus when cultivation was in an east-west direction (21.7 Mg ha 1 of dry matter) compared to north-south (17.5 Mg ha 1 of dry matter). Intercropping forage cactus and sorghum using biosaline agriculture is an excellent alternative for a production system in semi-arid environments, especially at higher planting densities (50,000 and 100,000 plants ha 1).
650 $aCrop yield
650 $aOpuntia stricta
650 $aSorghum bicolor subsp. bicolor
650 $aNopalea Cochenillifera
650 $aPalma Forrageira
650 $aPastagem
650 $aPastagem Consorciada
650 $aSorgo
653 $aRendimento da colheita
653 $aResiliência agrícola
700 1 $aJARDIM, A. M. da Ro F.
700 1 $aARAÚJO JÚNIOR, C. do N.
700 1 $aSOUZA, L. S. B. de
700 1 $aARAUJO, G. G. L. de
700 1 $aSOUZA, C. A. A. de
700 1 $aSALVADOR, K. R. da S.
700 1 $aLEITE, R. M. C.
700 1 $aPINHEIRO, A. G.
700 1 $aSILVA, T. G. F. da
773 $tIndustrial Crops and Products$gv. 184, 115059, 2022.
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