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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
15/03/2012 |
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Data da última atualização: |
11/06/2013 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
VENANCIO, W. S.; VENANCIO, R. M.; MEYER, M. C.; NUNES JUNIOR, J.; BEGLIOMINI, E.; JASPER, M. |
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Afiliação: |
W. S. VENANCIO, EEACG/UEPG, Ponta Grossa, PR, Brazil; R. M. VENANCIO, CESCAGE - Ponta Grossa, PR; MAURICIO CONRADO MEYER, CNPSO; J. NUNES JUNIOR, CTPA - Goiânia, GO.; E. BEGLIOMINI, BASF, Singapura.; M. JASPER, CESCAGE - Ponta Grossa, PR. |
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Título: |
Comparison of asian soybean rust chemical control on a susceptible and a resistant cultivar in Brazil. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: PLANT MANAGEMENT NETWORK; FIELD CROPS RUST SYMPOSIUM, San Antonio, 2011. Proceedings ... Saint Paul: APS: ASA: CSSA: 2011. Abstract, 24. Disponível em: < http://www.plantmanagementnetwork.org/proceedings/FCRS/2011/posters/>. |
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Idioma: |
Inglês |
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Conteúdo: |
The development of resistant cultivars to the Asian soybean rust (ASR), caused by Phakopsora pachyrhizi, brought an additional tool to the disease management in Brazil. ASR develops slower in resistant cultivars than in susceptible ones, allowing a reduction of the number of fungicide sprays, but chemical control is still necessary. A field trial was conducted in Ponta Grossa, Parana State, in order to compare the effects of ASR chemical control with four fungicide formulations, in both resistant (BRSGO 7560) and susceptible (CD 249 RR) soybean cultivars. The fungicides were applied twice, beginning at soybean growth stage R3?R4, when first uredinia were observed, and at soybean stage R5.3?R5.4. The fungicides used were premix formulations of pyraclostrobin + epoxiconazole + fluxapyroxad (40+64.8+40 g a.i./ha), azoxystrobin + cyproconazole (60+24 g a.i./ha), pyraclostrobin + epoxiconazole (79.8+30 g a.i./ha), and epoxiconazole (125 g a.i./ha). The ASR severity at soybean growth stage R7 on nonsprayed plots reached 75.4% on the resistant cultivar and 98.6% on the susceptible cultivar. Lower ASR severity index were observed in the resistant cultivar, with the treatments pyraclostrobin + epoxiconazole (9.8%), pyraclostrobin + epoxiconazole + fluxapyroxad (10.5%), and azoxystrobin + cyproconazole (10.9%), with an average of disease control ranging from 90.8 to 91.3%. The treatments with pyraclostrobin + epoxiconazole and pyraclostrobin + epoxiconazole + fluxapyroxad provided the lower yield reductions on both soybean cultivars. The yield and grain weight reductions in the nonsprayed treatment were 32 and 28%, respectively, on the resistant cultivar and 44 and 32%, respectively, on the susceptible cultivar. MenosThe development of resistant cultivars to the Asian soybean rust (ASR), caused by Phakopsora pachyrhizi, brought an additional tool to the disease management in Brazil. ASR develops slower in resistant cultivars than in susceptible ones, allowing a reduction of the number of fungicide sprays, but chemical control is still necessary. A field trial was conducted in Ponta Grossa, Parana State, in order to compare the effects of ASR chemical control with four fungicide formulations, in both resistant (BRSGO 7560) and susceptible (CD 249 RR) soybean cultivars. The fungicides were applied twice, beginning at soybean growth stage R3?R4, when first uredinia were observed, and at soybean stage R5.3?R5.4. The fungicides used were premix formulations of pyraclostrobin + epoxiconazole + fluxapyroxad (40+64.8+40 g a.i./ha), azoxystrobin + cyproconazole (60+24 g a.i./ha), pyraclostrobin + epoxiconazole (79.8+30 g a.i./ha), and epoxiconazole (125 g a.i./ha). The ASR severity at soybean growth stage R7 on nonsprayed plots reached 75.4% on the resistant cultivar and 98.6% on the susceptible cultivar. Lower ASR severity index were observed in the resistant cultivar, with the treatments pyraclostrobin + epoxiconazole (9.8%), pyraclostrobin + epoxiconazole + fluxapyroxad (10.5%), and azoxystrobin + cyproconazole (10.9%), with an average of disease control ranging from 90.8 to 91.3%. The treatments with pyraclostrobin + epoxiconazole and pyraclostrobin + epoxiconazole + fluxapyroxad provided the... Mostrar Tudo |
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Thesagro: |
Doença de planta; Doença fúngica; Ferrugem; Phakopsora Pachyrhizi; Soja. |
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Thesaurus Nal: |
Plant diseases and disorders; Soybeans. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/55864/1/comparison.fielcropssymposium.2011.pdf
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Marc: |
LEADER 02673nam a2200253 a 4500
001 1919008
005 2013-06-11
008 2011 bl uuuu u00u1 u #d
100 1 $aVENANCIO, W. S.
245 $aComparison of asian soybean rust chemical control on a susceptible and a resistant cultivar in Brazil.$h[electronic resource]
260 $aIn: PLANT MANAGEMENT NETWORK; FIELD CROPS RUST SYMPOSIUM, San Antonio, 2011. Proceedings ... Saint Paul: APS: ASA: CSSA: 2011. Abstract, 24. Disponível em: < http://www.plantmanagementnetwork.org/proceedings/FCRS/2011/posters/>.$c2011
520 $aThe development of resistant cultivars to the Asian soybean rust (ASR), caused by Phakopsora pachyrhizi, brought an additional tool to the disease management in Brazil. ASR develops slower in resistant cultivars than in susceptible ones, allowing a reduction of the number of fungicide sprays, but chemical control is still necessary. A field trial was conducted in Ponta Grossa, Parana State, in order to compare the effects of ASR chemical control with four fungicide formulations, in both resistant (BRSGO 7560) and susceptible (CD 249 RR) soybean cultivars. The fungicides were applied twice, beginning at soybean growth stage R3?R4, when first uredinia were observed, and at soybean stage R5.3?R5.4. The fungicides used were premix formulations of pyraclostrobin + epoxiconazole + fluxapyroxad (40+64.8+40 g a.i./ha), azoxystrobin + cyproconazole (60+24 g a.i./ha), pyraclostrobin + epoxiconazole (79.8+30 g a.i./ha), and epoxiconazole (125 g a.i./ha). The ASR severity at soybean growth stage R7 on nonsprayed plots reached 75.4% on the resistant cultivar and 98.6% on the susceptible cultivar. Lower ASR severity index were observed in the resistant cultivar, with the treatments pyraclostrobin + epoxiconazole (9.8%), pyraclostrobin + epoxiconazole + fluxapyroxad (10.5%), and azoxystrobin + cyproconazole (10.9%), with an average of disease control ranging from 90.8 to 91.3%. The treatments with pyraclostrobin + epoxiconazole and pyraclostrobin + epoxiconazole + fluxapyroxad provided the lower yield reductions on both soybean cultivars. The yield and grain weight reductions in the nonsprayed treatment were 32 and 28%, respectively, on the resistant cultivar and 44 and 32%, respectively, on the susceptible cultivar.
650 $aPlant diseases and disorders
650 $aSoybeans
650 $aDoença de planta
650 $aDoença fúngica
650 $aFerrugem
650 $aPhakopsora Pachyrhizi
650 $aSoja
700 1 $aVENANCIO, R. M.
700 1 $aMEYER, M. C.
700 1 $aNUNES JUNIOR, J.
700 1 $aBEGLIOMINI, E.
700 1 $aJASPER, M.
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Registro original: |
Embrapa Soja (CNPSO) |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
22/11/2022 |
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Data da última atualização: |
26/01/2024 |
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Autoria: |
NASCIMENTO, F. V.; VALDEBENITO-SANHUEZA, R. M.; BENDER, R. J. |
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Afiliação: |
FERNANDA VARELA NASCIMENTO, SECRETARIA ESTADUAL DE AGRICULTURA, PECUÁRIA E DESENVOLVIMENTO, RS; ROSA MARIA VALDEBENITO-SANHUEZA, PROTERRA ENGENHARIA AGRONÔMICA LTDA; RENAR JOÃO BENDER, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL. |
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Título: |
Inorganic solar filters incorporated to carnauba wax and incidence of citrus black spot on tangerine. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 57, e02927, 2022. |
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DOI: |
https://doi.org/10.1590/S1678-3921.pab2022.v57.02927 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Filtros solares inorgânicos incorporados à cera de carnaúba e incidência de mancha preta em tangerinas. |
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Conteúdo: |
ABSTRACT - The objective of this work was to evaluate the effect of zinc (ZnO) and titanium (TiO2) oxides, added to carnauba wax emulsions, on the incidence of citrus black spot (CBS) caused by Phyllosticta citricarpa and, consequently, on tangerine quality. Wax emulsions blended with ZnO or TiO2 were sprayed up to concentrations of 8% on late-season tangerine cultivars. Three experiments were carried out in a randomized complete four-block design, with two control treatments - one with the application of only the carnauba wax emulsion and the other without the application of the emulsion. The spraying of ZnO and TiO2 reduced the incidence of the disease on the harvested fruit; however, the increase in the concentrations of the oxides did not improve CBS control. Two consecutive applications of the oxides reduced the photosynthetic activity of the plants, negatively affecting yield, and caused damage to fruit peel. Tangerines infected artificially with 105 conidia mL-¹ of P. citricarpa, before or after the sprayings of the photoprotective films, showed a reduced CBS incidence. The treatments with the application of only carnauba wax do not differ from those with films combined with ZnO and TiO2 regarding the control of CBS incidence. The addition of inorganic oxides to the carnauba films limits the photosynthetic activity and reduces the yield of the plants, besides damaging the visual quality of the tangerines. RESUMO - O objetivo deste trabalho foi avaliar os efeitos dos óxidos de zinco (ZnO) e titânio (TiO2), adicionados à emulsão de cera de carnaúba, sobre a incidência de mancha preta dos citros (MPC) causada por Phyllosticta citricarpa e, consequentemente, sobre a qualidade de tangerinas. Emulsões de cera com adição de ZnO ou TiO2 foram aplicadas a concentrações de até 8% em cultivares tardias de tangerinas. Foram realizados três experimentos, em delineamento de quatro blocos completos ao acaso, com dois tratamentos controle - um com a aplicação apenas da emulsão de cera de carnaúba e outro sem a aplicação da emulsão. As pulverizações com ZnO e TiO2 reduziram a incidência da doença em frutos colhidos; no entanto, os aumentos nas concentrações dos óxidos não melhoraram o controle da doença. Duas aplicações consecutivas dos óxidos inibiram a atividade fotossintética das plantas, tendo afetado negativamente a sua produção, e causaram danos na casca das frutas. Tangerinas infectadas artificialmente com a suspensão de 105 conídios mL-¹ de P. citricarpa, antes ou depois da pulverização dos filmes, apresentaram menor incidência de MPC. Tratamentos com a aplicação apenas da emulsão de carnaúba não diferem dos com filmes preparados com ZnO e TiO2 quanto ao controle da MPC. A adição de óxidos inorgânicos aos filmes de carnaúba limita a atividade fotossintética e reduz a produtividade das plantas, além de prejudicar a qualidade visual das tangerinas. MenosABSTRACT - The objective of this work was to evaluate the effect of zinc (ZnO) and titanium (TiO2) oxides, added to carnauba wax emulsions, on the incidence of citrus black spot (CBS) caused by Phyllosticta citricarpa and, consequently, on tangerine quality. Wax emulsions blended with ZnO or TiO2 were sprayed up to concentrations of 8% on late-season tangerine cultivars. Three experiments were carried out in a randomized complete four-block design, with two control treatments - one with the application of only the carnauba wax emulsion and the other without the application of the emulsion. The spraying of ZnO and TiO2 reduced the incidence of the disease on the harvested fruit; however, the increase in the concentrations of the oxides did not improve CBS control. Two consecutive applications of the oxides reduced the photosynthetic activity of the plants, negatively affecting yield, and caused damage to fruit peel. Tangerines infected artificially with 105 conidia mL-¹ of P. citricarpa, before or after the sprayings of the photoprotective films, showed a reduced CBS incidence. The treatments with the application of only carnauba wax do not differ from those with films combined with ZnO and TiO2 regarding the control of CBS incidence. The addition of inorganic oxides to the carnauba films limits the photosynthetic activity and reduces the yield of the plants, besides damaging the visual quality of the tangerines. RESUMO - O objetivo deste trabalho foi avaliar os efeitos dos ó... Mostrar Tudo |
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Thesagro: |
Carnaúba; Cera; Mancha Preta; Tangerina. |
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Thesaurus NAL: |
Carnauba wax; Citrus black spot; Citrus deliciosa; Phyllosticta; Tangerines. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148558/1/Inorganic-solar-filters-2022.pdf
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Marc: |
LEADER 03906naa a2200277 a 4500
001 2148558
005 2024-01-26
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S1678-3921.pab2022.v57.02927$2DOI
100 1 $aNASCIMENTO, F. V.
245 $aInorganic solar filters incorporated to carnauba wax and incidence of citrus black spot on tangerine.$h[electronic resource]
260 $c2022
500 $aTítulo em português: Filtros solares inorgânicos incorporados à cera de carnaúba e incidência de mancha preta em tangerinas.
520 $aABSTRACT - The objective of this work was to evaluate the effect of zinc (ZnO) and titanium (TiO2) oxides, added to carnauba wax emulsions, on the incidence of citrus black spot (CBS) caused by Phyllosticta citricarpa and, consequently, on tangerine quality. Wax emulsions blended with ZnO or TiO2 were sprayed up to concentrations of 8% on late-season tangerine cultivars. Three experiments were carried out in a randomized complete four-block design, with two control treatments - one with the application of only the carnauba wax emulsion and the other without the application of the emulsion. The spraying of ZnO and TiO2 reduced the incidence of the disease on the harvested fruit; however, the increase in the concentrations of the oxides did not improve CBS control. Two consecutive applications of the oxides reduced the photosynthetic activity of the plants, negatively affecting yield, and caused damage to fruit peel. Tangerines infected artificially with 105 conidia mL-¹ of P. citricarpa, before or after the sprayings of the photoprotective films, showed a reduced CBS incidence. The treatments with the application of only carnauba wax do not differ from those with films combined with ZnO and TiO2 regarding the control of CBS incidence. The addition of inorganic oxides to the carnauba films limits the photosynthetic activity and reduces the yield of the plants, besides damaging the visual quality of the tangerines. RESUMO - O objetivo deste trabalho foi avaliar os efeitos dos óxidos de zinco (ZnO) e titânio (TiO2), adicionados à emulsão de cera de carnaúba, sobre a incidência de mancha preta dos citros (MPC) causada por Phyllosticta citricarpa e, consequentemente, sobre a qualidade de tangerinas. Emulsões de cera com adição de ZnO ou TiO2 foram aplicadas a concentrações de até 8% em cultivares tardias de tangerinas. Foram realizados três experimentos, em delineamento de quatro blocos completos ao acaso, com dois tratamentos controle - um com a aplicação apenas da emulsão de cera de carnaúba e outro sem a aplicação da emulsão. As pulverizações com ZnO e TiO2 reduziram a incidência da doença em frutos colhidos; no entanto, os aumentos nas concentrações dos óxidos não melhoraram o controle da doença. Duas aplicações consecutivas dos óxidos inibiram a atividade fotossintética das plantas, tendo afetado negativamente a sua produção, e causaram danos na casca das frutas. Tangerinas infectadas artificialmente com a suspensão de 105 conídios mL-¹ de P. citricarpa, antes ou depois da pulverização dos filmes, apresentaram menor incidência de MPC. Tratamentos com a aplicação apenas da emulsão de carnaúba não diferem dos com filmes preparados com ZnO e TiO2 quanto ao controle da MPC. A adição de óxidos inorgânicos aos filmes de carnaúba limita a atividade fotossintética e reduz a produtividade das plantas, além de prejudicar a qualidade visual das tangerinas.
650 $aCarnauba wax
650 $aCitrus black spot
650 $aCitrus deliciosa
650 $aPhyllosticta
650 $aTangerines
650 $aCarnaúba
650 $aCera
650 $aMancha Preta
650 $aTangerina
700 1 $aVALDEBENITO-SANHUEZA, R. M.
700 1 $aBENDER, R. J.
773 $tPesquisa Agropecuária Brasileira$gv. 57, e02927, 2022.
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