Efficiency of rice seed treatment with fungicides for controlling Helminthosporium oryzae
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/13774 |
Resumo: | In order to verify efficiency of fungicides in rice seed treatment for controlling Helminthosporium oryzae, a seed sample of rice from cultivar IAC 47 with 46% fungus infection was treated with several fungicides and tested for health by the blotter method. The following products were used: thiram 70 dust, 1750 mg a.i./kg of seeds; captan 50 WP 1500 mg; guazatine + imazalil (30 + 2) L 0.64 ml; iprodione 50 WP 1000 mg; iprodione + thiram (20 WP + 60 dust) 2000 mg; imazalil 2,5 dust 87,5 mg. Most of the fungicides significantly reduced H. oryzae seed infection. The most efficient were: guazatine + imazalil, iprodione and iprodione + thiram. A field experiment was carried out in the 1983/84 growing season of with treated seeds in randomized plots with four replications. Although differences between treatments were not significant for emergence and production, negative correlation obtained for seed infection x emergence as well as for seed infection x production, showed influence of seed treatment on these parameters. |
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Efficiency of rice seed treatment with fungicides for controlling Helminthosporium oryzaeEficiência de fungicidas em tratamento de sementes de arroz para controle de Helminthosporium oryzaecultivar IAC 47; infection; Oryza sativacultivar IAC 47; infecção; Oryza sativaIn order to verify efficiency of fungicides in rice seed treatment for controlling Helminthosporium oryzae, a seed sample of rice from cultivar IAC 47 with 46% fungus infection was treated with several fungicides and tested for health by the blotter method. The following products were used: thiram 70 dust, 1750 mg a.i./kg of seeds; captan 50 WP 1500 mg; guazatine + imazalil (30 + 2) L 0.64 ml; iprodione 50 WP 1000 mg; iprodione + thiram (20 WP + 60 dust) 2000 mg; imazalil 2,5 dust 87,5 mg. Most of the fungicides significantly reduced H. oryzae seed infection. The most efficient were: guazatine + imazalil, iprodione and iprodione + thiram. A field experiment was carried out in the 1983/84 growing season of with treated seeds in randomized plots with four replications. Although differences between treatments were not significant for emergence and production, negative correlation obtained for seed infection x emergence as well as for seed infection x production, showed influence of seed treatment on these parameters. Com o objetivo de determinar a eficiência de fungicidas em tratamento de sementes de arroz (Oryza sativa L.), para controle de H. oryzae, amostra de sementes da cultivar IAC 47 com 46% de infecção, por esse fungo, foi tratada com os fungicidas abaixo relacionados nas seguintes dosagens de i.a., por kg de sementes: Thiram 70 P5 1750 mg; Captan 50 PM 1500 mg; Guazatine + Imazalil (30 + 2) L 0,64 ml; Iprodione 50 PM 1000 mg; Iprodione + Thiram (20 PM + 60 P5) 2000 mg e Imazalil 2,5 P5 87,5 mg. Com as sementes tratadas foi conduzido experimento de campo no município de Paulínia, SP, seguindo o delineamento experimental de blocos casualizados com 4 repetições. Os resultados mostraram que a maioria dos produtos reduziu significativamente o nível de infecção de sementes, sobressaindo em eficiência os fungicidas Guazatine + Imazalil, Iprodione e Iprodione + Thiram. Com relação a emergência e produção não foram observadas diferenças entre os tratamentos. Entretanto, análise efetuada com os parâmetros avaliados mostrou correlação significativa entre infecção de sementes e emergência e entre infecção e produção o que evidenciou a influência do tratamento de sementes sobre esses parâmetros. Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraValarini, Pedro J.Lasca, Célia C.Chiba, Soyako2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/13774Pesquisa Agropecuaria Brasileira; v.23, n.1, jan. 1988; 41-44Pesquisa Agropecuária Brasileira; v.23, n.1, jan. 1988; 41-441678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/13774/7814info:eu-repo/semantics/openAccess2014-09-05T15:42:48Zoai:ojs.seer.sct.embrapa.br:article/13774Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-05T15:42:48Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Efficiency of rice seed treatment with fungicides for controlling Helminthosporium oryzae Eficiência de fungicidas em tratamento de sementes de arroz para controle de Helminthosporium oryzae |
title |
Efficiency of rice seed treatment with fungicides for controlling Helminthosporium oryzae |
spellingShingle |
Efficiency of rice seed treatment with fungicides for controlling Helminthosporium oryzae Valarini, Pedro J. cultivar IAC 47; infection; Oryza sativa cultivar IAC 47; infecção; Oryza sativa |
title_short |
Efficiency of rice seed treatment with fungicides for controlling Helminthosporium oryzae |
title_full |
Efficiency of rice seed treatment with fungicides for controlling Helminthosporium oryzae |
title_fullStr |
Efficiency of rice seed treatment with fungicides for controlling Helminthosporium oryzae |
title_full_unstemmed |
Efficiency of rice seed treatment with fungicides for controlling Helminthosporium oryzae |
title_sort |
Efficiency of rice seed treatment with fungicides for controlling Helminthosporium oryzae |
author |
Valarini, Pedro J. |
author_facet |
Valarini, Pedro J. Lasca, Célia C. Chiba, Soyako |
author_role |
author |
author2 |
Lasca, Célia C. Chiba, Soyako |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Valarini, Pedro J. Lasca, Célia C. Chiba, Soyako |
dc.subject.por.fl_str_mv |
cultivar IAC 47; infection; Oryza sativa cultivar IAC 47; infecção; Oryza sativa |
topic |
cultivar IAC 47; infection; Oryza sativa cultivar IAC 47; infecção; Oryza sativa |
description |
In order to verify efficiency of fungicides in rice seed treatment for controlling Helminthosporium oryzae, a seed sample of rice from cultivar IAC 47 with 46% fungus infection was treated with several fungicides and tested for health by the blotter method. The following products were used: thiram 70 dust, 1750 mg a.i./kg of seeds; captan 50 WP 1500 mg; guazatine + imazalil (30 + 2) L 0.64 ml; iprodione 50 WP 1000 mg; iprodione + thiram (20 WP + 60 dust) 2000 mg; imazalil 2,5 dust 87,5 mg. Most of the fungicides significantly reduced H. oryzae seed infection. The most efficient were: guazatine + imazalil, iprodione and iprodione + thiram. A field experiment was carried out in the 1983/84 growing season of with treated seeds in randomized plots with four replications. Although differences between treatments were not significant for emergence and production, negative correlation obtained for seed infection x emergence as well as for seed infection x production, showed influence of seed treatment on these parameters. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-17 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/13774 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/13774 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/13774/7814 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.23, n.1, jan. 1988; 41-44 Pesquisa Agropecuária Brasileira; v.23, n.1, jan. 1988; 41-44 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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