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Registro Completo |
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
30/06/2005 |
Data da última atualização: |
22/05/2006 |
Autoria: |
YORINORI, M. A.; KLINGELFUSS, L. H.; PACCOLA-MEIRELLES, L. D.; YORINORI, J. T. |
Título: |
Effect of time of spraying of fungicide and foliar nutrient on soybean powdery mildew. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
Journal of Phytopathology, Berlin, v. 152, n. 3, p. 129-132, Mar. 2004. |
Idioma: |
Inglês |
Conteúdo: |
With the objective of determining the effects of initial infection level (% leaf area infected, % l.a.i.) at the time of fungicide and foliar nutrient application for the control of powdery mildew, a study was carried out under greenhouse conditions at Embrapa Soja, Londrina, P.R. The fungicide tebuconazole (100 g a.i./ha/application) and sulphur fungicide (2.0 kg a.i./ha/application), sprayed at 20, 30, 40 and 50% l.a.i. (growth stages V3 and V5, between R5.1 and R5.3), and three applications (at V3, V4 and R5.1, beginning at 20% l.a.i.) of tebuconazole were compared with sulphur foliar nutrient (sulphur at the dose of 125 g a.i./ha/application). The highly susceptible BR-16 cultivar was used in a completely randomized design with 11 treatments, five replications (pots) and five plants per pot. The parameters evaluated were: % l.a.i., % yellowing leaf when the control reached growth stage R7.2 (between 50 and 75% yellow/mature leaves), % defoliation (% defol.) when the control plants reached R8.2 (pre-harvest maturity), number of pods and seeds and seed weight (s.w.) per plant. The area under the disease progress curve (AUDPC) was determined based on disease progress. The % l.a.i. and AUDPC of the control (98% and 65.41) differed from other treatments (3.564.2% l.a.i. and 13.5740.59 AUDPC). The % l.a.i. for the sulphur fungicide treatment (41.964.2%) and sulphur foliar nutrient (49.8%) were greater than for tebuconazole (3.528%). The % defol. of the control (90%) differed from tebuconazole applied at 30% initial infection (48%), with three applications (45%), and from sulphur foliar nutrient (47%). The s.w./plant of the control (2.23 g) was lower than that of tebuconazole treated at 40% IL (3.03 g) and at 20% IL (3.35 g) and for sulphur foliar nutrient (3.7 g). The initial disease severity (2050% l.a.i.) did not affect the level of powdery mildew control and the sulphur foliar fertilizer resulted in greater number and higher s.w./plant. MenosWith the objective of determining the effects of initial infection level (% leaf area infected, % l.a.i.) at the time of fungicide and foliar nutrient application for the control of powdery mildew, a study was carried out under greenhouse conditions at Embrapa Soja, Londrina, P.R. The fungicide tebuconazole (100 g a.i./ha/application) and sulphur fungicide (2.0 kg a.i./ha/application), sprayed at 20, 30, 40 and 50% l.a.i. (growth stages V3 and V5, between R5.1 and R5.3), and three applications (at V3, V4 and R5.1, beginning at 20% l.a.i.) of tebuconazole were compared with sulphur foliar nutrient (sulphur at the dose of 125 g a.i./ha/application). The highly susceptible BR-16 cultivar was used in a completely randomized design with 11 treatments, five replications (pots) and five plants per pot. The parameters evaluated were: % l.a.i., % yellowing leaf when the control reached growth stage R7.2 (between 50 and 75% yellow/mature leaves), % defoliation (% defol.) when the control plants reached R8.2 (pre-harvest maturity), number of pods and seeds and seed weight (s.w.) per plant. The area under the disease progress curve (AUDPC) was determined based on disease progress. The % l.a.i. and AUDPC of the control (98% and 65.41) differed from other treatments (3.564.2% l.a.i. and 13.5740.59 AUDPC). The % l.a.i. for the sulphur fungicide treatment (41.964.2%) and sulphur foliar nutrient (49.8%) were greater than for tebuconazole (3.528%). The % defol. of the control (90%) differed f... Mostrar Tudo |
Thesagro: |
Doença de Planta; Fungicida; Fungo; Soja. |
Categoria do assunto: |
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Marc: |
LEADER 02565naa a2200205 a 4500 001 1464162 005 2006-05-22 008 2004 bl --- 0-- u #d 100 1 $aYORINORI, M. A. 245 $aEffect of time of spraying of fungicide and foliar nutrient on soybean powdery mildew. 260 $c2004 520 $aWith the objective of determining the effects of initial infection level (% leaf area infected, % l.a.i.) at the time of fungicide and foliar nutrient application for the control of powdery mildew, a study was carried out under greenhouse conditions at Embrapa Soja, Londrina, P.R. The fungicide tebuconazole (100 g a.i./ha/application) and sulphur fungicide (2.0 kg a.i./ha/application), sprayed at 20, 30, 40 and 50% l.a.i. (growth stages V3 and V5, between R5.1 and R5.3), and three applications (at V3, V4 and R5.1, beginning at 20% l.a.i.) of tebuconazole were compared with sulphur foliar nutrient (sulphur at the dose of 125 g a.i./ha/application). The highly susceptible BR-16 cultivar was used in a completely randomized design with 11 treatments, five replications (pots) and five plants per pot. The parameters evaluated were: % l.a.i., % yellowing leaf when the control reached growth stage R7.2 (between 50 and 75% yellow/mature leaves), % defoliation (% defol.) when the control plants reached R8.2 (pre-harvest maturity), number of pods and seeds and seed weight (s.w.) per plant. The area under the disease progress curve (AUDPC) was determined based on disease progress. The % l.a.i. and AUDPC of the control (98% and 65.41) differed from other treatments (3.564.2% l.a.i. and 13.5740.59 AUDPC). The % l.a.i. for the sulphur fungicide treatment (41.964.2%) and sulphur foliar nutrient (49.8%) were greater than for tebuconazole (3.528%). The % defol. of the control (90%) differed from tebuconazole applied at 30% initial infection (48%), with three applications (45%), and from sulphur foliar nutrient (47%). The s.w./plant of the control (2.23 g) was lower than that of tebuconazole treated at 40% IL (3.03 g) and at 20% IL (3.35 g) and for sulphur foliar nutrient (3.7 g). The initial disease severity (2050% l.a.i.) did not affect the level of powdery mildew control and the sulphur foliar fertilizer resulted in greater number and higher s.w./plant. 650 $aDoença de Planta 650 $aFungicida 650 $aFungo 650 $aSoja 700 1 $aKLINGELFUSS, L. H. 700 1 $aPACCOLA-MEIRELLES, L. D. 700 1 $aYORINORI, J. T. 773 $tJournal of Phytopathology, Berlin$gv. 152, n. 3, p. 129-132, Mar. 2004.
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Embrapa Soja (CNPSO) |
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Registros recuperados : 24 | |
11. | | YORINORI, M. A.; KLINGELFUSS, L. H.; YORINORI, J. T. Efeito da época de aplicação de fungicida e de nutriente foliar sobre o oídio da soja. Fitopatologia Brasileira, Brasília, v. 27, p. S179, ago. 2002. Suplemento. Resumo 570. Edição do XXXV Congresso Brasileiro de Fitopatologia, Recife, PE, ago. 2002.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Soja. |
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12. | | KLINGELFUSS, L. H.; YORINORI, J. T.; DESTRO, D. Identification methods for resistance in soybean to Fusarium solani f. sp. glycines, under greenhouse conditions. In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004. p. 79. (Embrapa Soja. Documentos, 228). Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.Biblioteca(s): Embrapa Soja. |
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13. | | KLINGELFUSS, L. H.; YORINORI, J. T.; DESTRO, D. Métodos de inoculação para quantificação de resistência em soja a Fusarium solani f. sp. glycines, em casa-de-vegetação. Fitopatologia Brasileira, Brasília, DF, v. 32, n.1, p. 50-55, jan./fev. 2007.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
Biblioteca(s): Embrapa Soja. |
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14. | | TAKANOHASHI, C. E.; GODOY, C. V.; KLINGELFUSS, L. H.; CANTERI, M. G. Avaliação da eficiência de fungicidas no controle da ferrugem asiática (Phakopsora pachyrhizi). Fitopatologia Brasileira, Brasília, v. 29, p. S241-S242, ago. 2004. Suplemento. Resumo apresentado no XXXVII Congresso Brasileiro de Fitopatologia, Gramado, RS, agosto, 2004.Biblioteca(s): Embrapa Soja. |
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16. | | CAUS, J.; GODOY, C. V.; KLINGELFUSS, L. H.; CANTERI, M. G. Escala diagramática e imagens digitais para avaliar a desfolha em tratamento para controle da ferrugem da soja. Fitopatologia Brasileira, Brasília, v. 29, p. S236, ago. 2004. Suplemento. Resumo apresentado no XXXVII Congresso Brasileiro de Fitopatologia, Gramado, RS, agosto, 2004.Biblioteca(s): Embrapa Soja. |
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Registros recuperados : 24 | |
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