Effect of Alabama argillacea attack on vegetative growth and its relationship with cotton phenology
Autor(a) principal: | |
---|---|
Data de Publicação: | 2001 |
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/6223 |
Resumo: | This work was carried out to study the effect of cotton leaf worm attack on vegetative growth and its relation with plant phenology. The CNPA 7H and CNPA Precoce 2 cultivars were planted in plastic pots with capacity for 10 kg of soil, and one plant per pot was maintained after pruning. A completely randomized block design was used with seven treatments and four replications. Third-instar caterpillars of Alabama argillacea were used in the experiment, which were originated from a massal rearing creation kept in laboratory. Infestation with caterpillars started 40 days after the planting by identification of leaves that characterized the treatments. The variables analyzed were plant diameter and height in 1996, and plant diameter and height and leaf area in 1997. The attack on primary branch leaves caused reductions in plant diameter and height for both cultivars, whichever growth stage of the plant. In regard to leaf area, greater decreases were observed for treatments that had the main branch leaves wasted away. The most affected one was that in which the attack has occurred after flowering. |
id |
EMBRAPA-4_2c30b75bdf2b6e7f859aa7eaafedf91b |
---|---|
oai_identifier_str |
oai:ojs.seer.sct.embrapa.br:article/6223 |
network_acronym_str |
EMBRAPA-4 |
network_name_str |
Pesquisa Agropecuária Brasileira (Online) |
repository_id_str |
|
spelling |
Effect of Alabama argillacea attack on vegetative growth and its relationship with cotton phenologyEfeito do ataque de Alabama argillacea no crescimento vegetativo e sua relação com a fenologia do algodoeiroGossypium hirsitum; leaf area; stems; plant developmental stages; pests of plantsGossypium hirsutum; área foliar; caule; etapas de desenvolvimento da planta; pragas das plantasThis work was carried out to study the effect of cotton leaf worm attack on vegetative growth and its relation with plant phenology. The CNPA 7H and CNPA Precoce 2 cultivars were planted in plastic pots with capacity for 10 kg of soil, and one plant per pot was maintained after pruning. A completely randomized block design was used with seven treatments and four replications. Third-instar caterpillars of Alabama argillacea were used in the experiment, which were originated from a massal rearing creation kept in laboratory. Infestation with caterpillars started 40 days after the planting by identification of leaves that characterized the treatments. The variables analyzed were plant diameter and height in 1996, and plant diameter and height and leaf area in 1997. The attack on primary branch leaves caused reductions in plant diameter and height for both cultivars, whichever growth stage of the plant. In regard to leaf area, greater decreases were observed for treatments that had the main branch leaves wasted away. The most affected one was that in which the attack has occurred after flowering.O objetivo deste trabalho foi estudar o efeito do ataque do curuquerê (Alabama argillacea Hübner, 1818), no desenvolvimento vegetativo do algodoeiro e sua relação com a fenologia da planta. Foram utilizadas as cultivares CNPA 7H e CNPA Precoce 2, e semeadas em vasos de plástico com capacidade para 10 kg de solo, mantendo-se uma planta por vaso após o desbaste. O delineamento experimental utilizado foi inteiramente casualizado, com sete trata-mentos e quatro repetições. Foram utilizadas lagartas de terceiro ínstar de A. argillacea, provenientes de criação massal mantida em laboratório. A infestação por estas lagartas teve início 40 dias após o plantio, mediante a identificação das folhas que caracterizavam os trata-mentos. Foram avaliadas as variáveis diâmetro caulinar e altura de plantas, em 1996; e em 1997, foi acrescentada a variável área foliar. O ataque de A. argillacea afeta o diâmetro caulinar e a altura das plantas em ambas as cultivares e em qualquer fase de desenvolvimento do algodoeiro. Com relação à área foliar, os maiores decréscimos foram verificados nos trata-mentos que tiveram as folhas dos ramos principais consumidas; o trata-mento mais afetado foi aquele em que o ataque ocorreu após a floração.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraQuirino, Ednaldo da SilvaSoares, José Janduí2001-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6223Pesquisa Agropecuaria Brasileira; v.36, n.8, ago. 2001; 1005-1010Pesquisa Agropecuária Brasileira; v.36, n.8, ago. 2001; 1005-10101678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6223/3288info:eu-repo/semantics/openAccess2010-08-09T16:56:34Zoai:ojs.seer.sct.embrapa.br:article/6223Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-08-09T16:56:34Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Effect of Alabama argillacea attack on vegetative growth and its relationship with cotton phenology Efeito do ataque de Alabama argillacea no crescimento vegetativo e sua relação com a fenologia do algodoeiro |
title |
Effect of Alabama argillacea attack on vegetative growth and its relationship with cotton phenology |
spellingShingle |
Effect of Alabama argillacea attack on vegetative growth and its relationship with cotton phenology Quirino, Ednaldo da Silva Gossypium hirsitum; leaf area; stems; plant developmental stages; pests of plants Gossypium hirsutum; área foliar; caule; etapas de desenvolvimento da planta; pragas das plantas |
title_short |
Effect of Alabama argillacea attack on vegetative growth and its relationship with cotton phenology |
title_full |
Effect of Alabama argillacea attack on vegetative growth and its relationship with cotton phenology |
title_fullStr |
Effect of Alabama argillacea attack on vegetative growth and its relationship with cotton phenology |
title_full_unstemmed |
Effect of Alabama argillacea attack on vegetative growth and its relationship with cotton phenology |
title_sort |
Effect of Alabama argillacea attack on vegetative growth and its relationship with cotton phenology |
author |
Quirino, Ednaldo da Silva |
author_facet |
Quirino, Ednaldo da Silva Soares, José Janduí |
author_role |
author |
author2 |
Soares, José Janduí |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Quirino, Ednaldo da Silva Soares, José Janduí |
dc.subject.por.fl_str_mv |
Gossypium hirsitum; leaf area; stems; plant developmental stages; pests of plants Gossypium hirsutum; área foliar; caule; etapas de desenvolvimento da planta; pragas das plantas |
topic |
Gossypium hirsitum; leaf area; stems; plant developmental stages; pests of plants Gossypium hirsutum; área foliar; caule; etapas de desenvolvimento da planta; pragas das plantas |
description |
This work was carried out to study the effect of cotton leaf worm attack on vegetative growth and its relation with plant phenology. The CNPA 7H and CNPA Precoce 2 cultivars were planted in plastic pots with capacity for 10 kg of soil, and one plant per pot was maintained after pruning. A completely randomized block design was used with seven treatments and four replications. Third-instar caterpillars of Alabama argillacea were used in the experiment, which were originated from a massal rearing creation kept in laboratory. Infestation with caterpillars started 40 days after the planting by identification of leaves that characterized the treatments. The variables analyzed were plant diameter and height in 1996, and plant diameter and height and leaf area in 1997. The attack on primary branch leaves caused reductions in plant diameter and height for both cultivars, whichever growth stage of the plant. In regard to leaf area, greater decreases were observed for treatments that had the main branch leaves wasted away. The most affected one was that in which the attack has occurred after flowering. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-08-01 |
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/6223 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/6223 |
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/6223/3288 |
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.36, n.8, ago. 2001; 1005-1010 Pesquisa Agropecuária Brasileira; v.36, n.8, ago. 2001; 1005-1010 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 |
_version_ |
1793416653039468544 |