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
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , , , , |
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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Acta Scientiarum. Agronomy (Online) |
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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 |
_version_ |
1799305902044479488 |