Control, with organic matter, of cucumber damping-off caused by Pythium ultimum Trow
Autor(a) principal: | |
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Data de Publicação: | 1997 |
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/4607 |
Resumo: | The effectiveness of several media [soil-sand-perlite (1:1:1 v/v); soil-sand-perlite-manurc (1:1:1:3); soil-sand-perlite-compost (1:1:1:3); soil-sand-perlite-peat (1:1:1:3); soil-sand-perlite-wheat straw (1:1:1:3), and sand-perlite-peat-compost-manure-wheat straw (2:2:1:3:3:1)] as suppressers of the cucumber (Cucumis sativus L.) dampingoff causal agent, Pythium ultimum Trow., was evaluated. The media were infested with 12 g/L of Pythium inoculum (broken corn-sand medium), fifteen days before sowing ten cucumber seeds (Mezzolungo Marketer) I cm deep in pots containing 500 ml of medium. Plants were grown at a constant temperature of 250C ± 2 with 12 hours of illumination per day. The percentage of emerged seedlings and post- and pre-emergent damping-off and disease severity were determined fifteen days after planting. This procedure was repeated on the same substrate, without inoculation, ten days after harvesting this first trial. The manure medium was the most suppressive to the disease, with percent of emergence and percent of pre- and post-emergence damping-off and disease severity values of 84.5%, 12.0%, 0% and 1.35, respectively, for the first bioassay. The replanting experiment results were 98.5%, 0.0%, 0.0% and 1.0, respectively. Peat medium and the mixture sand-peat-manure-compost-wheat straw medium were more conducive to the disease than wheat straw medium, resulting in higher occurrence and severity of attack by Pythium. |
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Control, with organic matter, of cucumber damping-off caused by Pythium ultimum TrowControle, com matéria orgânica, do tombamento do pepino, causado por Pythium ultimum Trowsuppressiveness; Cucumis sativus; biological controlsupressividade; Cucumis sativus; controle biológico The effectiveness of several media [soil-sand-perlite (1:1:1 v/v); soil-sand-perlite-manurc (1:1:1:3); soil-sand-perlite-compost (1:1:1:3); soil-sand-perlite-peat (1:1:1:3); soil-sand-perlite-wheat straw (1:1:1:3), and sand-perlite-peat-compost-manure-wheat straw (2:2:1:3:3:1)] as suppressers of the cucumber (Cucumis sativus L.) dampingoff causal agent, Pythium ultimum Trow., was evaluated. The media were infested with 12 g/L of Pythium inoculum (broken corn-sand medium), fifteen days before sowing ten cucumber seeds (Mezzolungo Marketer) I cm deep in pots containing 500 ml of medium. Plants were grown at a constant temperature of 250C ± 2 with 12 hours of illumination per day. The percentage of emerged seedlings and post- and pre-emergent damping-off and disease severity were determined fifteen days after planting. This procedure was repeated on the same substrate, without inoculation, ten days after harvesting this first trial. The manure medium was the most suppressive to the disease, with percent of emergence and percent of pre- and post-emergence damping-off and disease severity values of 84.5%, 12.0%, 0% and 1.35, respectively, for the first bioassay. The replanting experiment results were 98.5%, 0.0%, 0.0% and 1.0, respectively. Peat medium and the mixture sand-peat-manure-compost-wheat straw medium were more conducive to the disease than wheat straw medium, resulting in higher occurrence and severity of attack by Pythium.Foi avaliada a efetividade dos substratos: solo-areia-perlita (1:1:1.v/v); solo-areia-perlita-esterco (1:1:1:3); solo-areia-perlita-composto (1:1:1:3); solo-areia-perlita-turfa (1:1:1:.3); solo-areia-perlita-palha de trigo (1:1:1:3); e areia-perlita-turfa-composto-esterco-palha de trigo (2:2:1:3:3:1), em suprimir o tombamento de pepino (Cucumis sativus L. ) causado por Pythium ultimum Trow. Esses substratos foram infestados com 12 g/L de inóculo de Pythium (quirera-areia-água), quinze dias antes da semeadura de dez sementes de pepino (Mezzolungo Marketer) a 1 cm de profundidade, em vasos contendo aproximadamente 500 ml de substrato. As plântulas se desenvolveram em câmara de crescimento, com temperatura de 25ºC ± 2 e doze horas de luz. A porcentagem de emergência, o tombamento de pré e de pós-emergência e a severidade da doença foram determinadas quinze dias após a semeadura. Uma segunda semeadura, dez dias após a retirada das plantas, foi realizada nos mesmos substratos. O substrato enriquecido com esterco foi o que apresentou maior supressividade à doença, com valores de porcentagem de emergência, tombamento de pré e de pós-emergência, e de severidade de 84,5%, 12,0%, 0% e 1,35, respectivamente, no primeiro cultivo. No replantio, os resultados foram 98,5%, 0,0%, 0,0% e 1,0, respectivamente. O substrato com turfa e o com mistura das matérias orgânicas foram mais conducentes do que o que continha palha de trigo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraBettiol, WagnerMigheli, QuiricoGaribaldi, Angelo1997-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/4607Pesquisa Agropecuaria Brasileira; v.32, n.1, jan. 1997; 57-61Pesquisa Agropecuária Brasileira; v.32, n.1, jan. 1997; 57-611678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/4607/6961info:eu-repo/semantics/openAccess2015-02-20T17:30:20Zoai:ojs.seer.sct.embrapa.br:article/4607Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2015-02-20T17:30:20Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Control, with organic matter, of cucumber damping-off caused by Pythium ultimum Trow Controle, com matéria orgânica, do tombamento do pepino, causado por Pythium ultimum Trow |
title |
Control, with organic matter, of cucumber damping-off caused by Pythium ultimum Trow |
spellingShingle |
Control, with organic matter, of cucumber damping-off caused by Pythium ultimum Trow Bettiol, Wagner suppressiveness; Cucumis sativus; biological control supressividade; Cucumis sativus; controle biológico |
title_short |
Control, with organic matter, of cucumber damping-off caused by Pythium ultimum Trow |
title_full |
Control, with organic matter, of cucumber damping-off caused by Pythium ultimum Trow |
title_fullStr |
Control, with organic matter, of cucumber damping-off caused by Pythium ultimum Trow |
title_full_unstemmed |
Control, with organic matter, of cucumber damping-off caused by Pythium ultimum Trow |
title_sort |
Control, with organic matter, of cucumber damping-off caused by Pythium ultimum Trow |
author |
Bettiol, Wagner |
author_facet |
Bettiol, Wagner Migheli, Quirico Garibaldi, Angelo |
author_role |
author |
author2 |
Migheli, Quirico Garibaldi, Angelo |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Bettiol, Wagner Migheli, Quirico Garibaldi, Angelo |
dc.subject.por.fl_str_mv |
suppressiveness; Cucumis sativus; biological control supressividade; Cucumis sativus; controle biológico |
topic |
suppressiveness; Cucumis sativus; biological control supressividade; Cucumis sativus; controle biológico |
description |
The effectiveness of several media [soil-sand-perlite (1:1:1 v/v); soil-sand-perlite-manurc (1:1:1:3); soil-sand-perlite-compost (1:1:1:3); soil-sand-perlite-peat (1:1:1:3); soil-sand-perlite-wheat straw (1:1:1:3), and sand-perlite-peat-compost-manure-wheat straw (2:2:1:3:3:1)] as suppressers of the cucumber (Cucumis sativus L.) dampingoff causal agent, Pythium ultimum Trow., was evaluated. The media were infested with 12 g/L of Pythium inoculum (broken corn-sand medium), fifteen days before sowing ten cucumber seeds (Mezzolungo Marketer) I cm deep in pots containing 500 ml of medium. Plants were grown at a constant temperature of 250C ± 2 with 12 hours of illumination per day. The percentage of emerged seedlings and post- and pre-emergent damping-off and disease severity were determined fifteen days after planting. This procedure was repeated on the same substrate, without inoculation, ten days after harvesting this first trial. The manure medium was the most suppressive to the disease, with percent of emergence and percent of pre- and post-emergence damping-off and disease severity values of 84.5%, 12.0%, 0% and 1.35, respectively, for the first bioassay. The replanting experiment results were 98.5%, 0.0%, 0.0% and 1.0, respectively. Peat medium and the mixture sand-peat-manure-compost-wheat straw medium were more conducive to the disease than wheat straw medium, resulting in higher occurrence and severity of attack by Pythium. |
publishDate |
1997 |
dc.date.none.fl_str_mv |
1997-01-01 |
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/4607 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/4607 |
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/4607/6961 |
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.32, n.1, jan. 1997; 57-61 Pesquisa Agropecuária Brasileira; v.32, n.1, jan. 1997; 57-61 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) |
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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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1793416693151694848 |