Effect of viral diseases on the production of lettuce grown under screened condition and transplanted at different distances from the source of inoculum - DOI: 10.4025/actasciagron.v29i2.234

Detalhes bibliográficos
Autor(a) principal: Borges, Luciana Maestro
Data de Publicação: 2007
Outros Autores: Santos, Humberto Silva, Souto, Eliezer Rodrigues de, Scapim, Carlos Alberto, Abuquerque, Fernando Alves de, Torres, José Usan, Callegari, Osni, Santos, Isadora Alvarenga
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum. Agronomy (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/234
Resumo: The effect of growing seedlings under screen house during different periods and transplanting at different distances from the source of inoculum were evaluated for viral disease effect on the production of lettuce Veronica cultivar. The experiments were conducted from June to September, 1999, adopting an entirely randomized experimental design with three replications. Seven periods of seedling protection and three planting distances from the virus inoculum’s source were tested. After each period of protection, the seedlings were maintained under anti-aphid screen and transferred to a greenhouse exposed to natural virus infection until they reached the stage of transplanting. No significant differences among the treatments regarding the time of protection of the seedlings, were observed. A gradient of production was also verified, that is, the further from the source of inoculum, the larger the productivity. The induced symptoms were attributed to LMV and LeMoV.
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spelling Effect of viral diseases on the production of lettuce grown under screened condition and transplanted at different distances from the source of inoculum - DOI: 10.4025/actasciagron.v29i2.234Efeito de fitoviroses na produção de alface transplantada com mudas produzidas em telado a diferentes distâncias da fonte de inóculo - DOI: 10.4025/actasciagron.v29i2.234Lactuca sativa L.LMVLeMoVcontrole culturalThe effect of growing seedlings under screen house during different periods and transplanting at different distances from the source of inoculum were evaluated for viral disease effect on the production of lettuce Veronica cultivar. The experiments were conducted from June to September, 1999, adopting an entirely randomized experimental design with three replications. Seven periods of seedling protection and three planting distances from the virus inoculum’s source were tested. After each period of protection, the seedlings were maintained under anti-aphid screen and transferred to a greenhouse exposed to natural virus infection until they reached the stage of transplanting. No significant differences among the treatments regarding the time of protection of the seedlings, were observed. A gradient of production was also verified, that is, the further from the source of inoculum, the larger the productivity. The induced symptoms were attributed to LMV and LeMoV.Com o objetivo de avaliar os efeitos dos períodos de permanência das mudas de alface em telado antiafídeo e da distância da fonte principal de inóculo na ocorrência de fitoviroses e na produção de alface, cv. Verônica, foram conduzidos três experimentos em Maringá, Estado do Paraná, durante o período de junho a setembro de 1999. Adotou-se o delineamento experimental inteiramente casualizado, com três repetições, quando foram avaliados sete períodos de proteção das mudas: 0, 5, 10, 15, 20, 25 e 30 dias. Após cada período de proteção, as mudas foram transferidas para um abrigo com cobertura plástica e expostas a insetos vetores dos vírus, até atingirem o ponto de transplante. Os experimentos foram instalados, respectivamente, a distâncias que variaram entre 20 e 41 m, 41 e 62 m e 62 e 83 m da fonte principal de inóculo - cultura com maior idade e apresentando sintomas característicos de infecção viral. Não se verificou efeito dos períodos de proteção das mudas na severidade dos sintomas de viroses e nas características de crescimento e produção. O efeito da distância da fonte de inoculo, entretanto, foi inversamente proporcional � severidade dos sintomas de viroses e diretamente proporcional ao crescimento e produção da alface. Os sintomas induzidos - danos - foram atribuídos ao LMV e ao LeMoV.Universidade Estadual de Maringá2007-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/23410.4025/actasciagron.v29i2.234Acta Scientiarum. Agronomy; Vol 29 No 2 (2007); 179-185Acta Scientiarum. Agronomy; v. 29 n. 2 (2007); 179-1851807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/234/109Borges, Luciana MaestroSantos, Humberto SilvaSouto, Eliezer Rodrigues deScapim, Carlos AlbertoAbuquerque, Fernando Alves deTorres, José UsanCallegari, OsniSantos, Isadora Alvarengainfo:eu-repo/semantics/openAccess2022-11-23T18:37:02Zoai:periodicos.uem.br/ojs:article/234Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:37:02Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Effect of viral diseases on the production of lettuce grown under screened condition and transplanted at different distances from the source of inoculum - DOI: 10.4025/actasciagron.v29i2.234
Efeito de fitoviroses na produção de alface transplantada com mudas produzidas em telado a diferentes distâncias da fonte de inóculo - DOI: 10.4025/actasciagron.v29i2.234
title Effect of viral diseases on the production of lettuce grown under screened condition and transplanted at different distances from the source of inoculum - DOI: 10.4025/actasciagron.v29i2.234
spellingShingle Effect of viral diseases on the production of lettuce grown under screened condition and transplanted at different distances from the source of inoculum - DOI: 10.4025/actasciagron.v29i2.234
Borges, Luciana Maestro
Lactuca sativa L.
LMV
LeMoV
controle cultural
title_short Effect of viral diseases on the production of lettuce grown under screened condition and transplanted at different distances from the source of inoculum - DOI: 10.4025/actasciagron.v29i2.234
title_full Effect of viral diseases on the production of lettuce grown under screened condition and transplanted at different distances from the source of inoculum - DOI: 10.4025/actasciagron.v29i2.234
title_fullStr Effect of viral diseases on the production of lettuce grown under screened condition and transplanted at different distances from the source of inoculum - DOI: 10.4025/actasciagron.v29i2.234
title_full_unstemmed Effect of viral diseases on the production of lettuce grown under screened condition and transplanted at different distances from the source of inoculum - DOI: 10.4025/actasciagron.v29i2.234
title_sort Effect of viral diseases on the production of lettuce grown under screened condition and transplanted at different distances from the source of inoculum - DOI: 10.4025/actasciagron.v29i2.234
author Borges, Luciana Maestro
author_facet Borges, Luciana Maestro
Santos, Humberto Silva
Souto, Eliezer Rodrigues de
Scapim, Carlos Alberto
Abuquerque, Fernando Alves de
Torres, José Usan
Callegari, Osni
Santos, Isadora Alvarenga
author_role author
author2 Santos, Humberto Silva
Souto, Eliezer Rodrigues de
Scapim, Carlos Alberto
Abuquerque, Fernando Alves de
Torres, José Usan
Callegari, Osni
Santos, Isadora Alvarenga
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Borges, Luciana Maestro
Santos, Humberto Silva
Souto, Eliezer Rodrigues de
Scapim, Carlos Alberto
Abuquerque, Fernando Alves de
Torres, José Usan
Callegari, Osni
Santos, Isadora Alvarenga
dc.subject.por.fl_str_mv Lactuca sativa L.
LMV
LeMoV
controle cultural
topic Lactuca sativa L.
LMV
LeMoV
controle cultural
description The effect of growing seedlings under screen house during different periods and transplanting at different distances from the source of inoculum were evaluated for viral disease effect on the production of lettuce Veronica cultivar. The experiments were conducted from June to September, 1999, adopting an entirely randomized experimental design with three replications. Seven periods of seedling protection and three planting distances from the virus inoculum’s source were tested. After each period of protection, the seedlings were maintained under anti-aphid screen and transferred to a greenhouse exposed to natural virus infection until they reached the stage of transplanting. No significant differences among the treatments regarding the time of protection of the seedlings, were observed. A gradient of production was also verified, that is, the further from the source of inoculum, the larger the productivity. The induced symptoms were attributed to LMV and LeMoV.
publishDate 2007
dc.date.none.fl_str_mv 2007-11-01
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 http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/234
10.4025/actasciagron.v29i2.234
url http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/234
identifier_str_mv 10.4025/actasciagron.v29i2.234
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/234/109
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 Universidade Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Agronomy; Vol 29 No 2 (2007); 179-185
Acta Scientiarum. Agronomy; v. 29 n. 2 (2007); 179-185
1807-8621
1679-9275
reponame:Acta Scientiarum. Agronomy (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum. Agronomy (Online)
collection Acta Scientiarum. Agronomy (Online)
repository.name.fl_str_mv Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br
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