Pollinators frequency on cotton flowers and production - DOI: 10.4025/actasciagron.v26i4.1808
Autor(a) principal: | |
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Data de Publicação: | 2008 |
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/1808 |
Resumo: | Insects frequency on cotton pollination and production. The present experiment was conducted at University Centre Moura Lacerda, Ribeirão Preto, state of São Paulo, and had the aim of studying the insects frequency and behaviour on cotton flowers (Gossypium hirsutum L.) as well as the collection type (nectar and/or pollen) of these insects and the effectiveness of their visits on cotton production. To do so, the culture remained under observation on March, 2002, during the first five minutes in each time, from 8:00 to 17:00, with three repetitions. We also marked 50 flowers buds: 25 covered with paper bags and 25 uncovered, in order to evaluate the insects influence on fructification. The cotton flowers opened between 8:00 and 9:00 and closed between 17:00 and 18:00. The insects which were observed in the flowers were the africanized honey bee Apis mellifera scuellata (50.3%), followed by the cleoptero (brasileirinho) Diabrotica speciosa (40.8%), other hymenoptera (5.0%), other coleoptera (1.7%), lepidoptera (1.1%), and the bee Trigona spp. (irapuá) (1.1%). Apart form the africanized honey bee and the irapuá, all the insects collected exclusively nectar from the flowers. The africanized honey bees preferred to collect nectar (95.6%) and visited the flowers from 9:00 to 16:00, with frequency peak at 13:00. Brasileirinho visited the flowers from 8:00 to 17:00, with frequency peak at 15:00. The number of apples was not different in the treatments (covered and uncovered), however, the number of seeds was higher in the uncovered treatment (29.45 seeds/apple, on average) than in the covered one (20.65 seeds/apple, on average). The africanized honey bee was considered as an effective pollinator of this culture |
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Pollinators frequency on cotton flowers and production - DOI: 10.4025/actasciagron.v26i4.1808Freqüência dos insetos na polinização e produção de algodão - DOI: 10.4025/actasciagron.v26i4.1808Gossypium hirsutumApis melliferacomportamento forrageiro5.00.00.00-4 Ciências AgráriasInsects frequency on cotton pollination and production. The present experiment was conducted at University Centre Moura Lacerda, Ribeirão Preto, state of São Paulo, and had the aim of studying the insects frequency and behaviour on cotton flowers (Gossypium hirsutum L.) as well as the collection type (nectar and/or pollen) of these insects and the effectiveness of their visits on cotton production. To do so, the culture remained under observation on March, 2002, during the first five minutes in each time, from 8:00 to 17:00, with three repetitions. We also marked 50 flowers buds: 25 covered with paper bags and 25 uncovered, in order to evaluate the insects influence on fructification. The cotton flowers opened between 8:00 and 9:00 and closed between 17:00 and 18:00. The insects which were observed in the flowers were the africanized honey bee Apis mellifera scuellata (50.3%), followed by the cleoptero (brasileirinho) Diabrotica speciosa (40.8%), other hymenoptera (5.0%), other coleoptera (1.7%), lepidoptera (1.1%), and the bee Trigona spp. (irapuá) (1.1%). Apart form the africanized honey bee and the irapuá, all the insects collected exclusively nectar from the flowers. The africanized honey bees preferred to collect nectar (95.6%) and visited the flowers from 9:00 to 16:00, with frequency peak at 13:00. Brasileirinho visited the flowers from 8:00 to 17:00, with frequency peak at 15:00. The number of apples was not different in the treatments (covered and uncovered), however, the number of seeds was higher in the uncovered treatment (29.45 seeds/apple, on average) than in the covered one (20.65 seeds/apple, on average). The africanized honey bee was considered as an effective pollinator of this cultureEste experimento foi conduzido no Centro Universitário Moura Lacerda, Ribeirão Preto, Estado de São Paulo, e teve como objetivos estudar a freqüência e o comportamento dos insetos visitantes nas flores do algodoeiro (Gossypium hirsutum L.), bem como o tipo de coleta (néctar e/ou pólen) desses insetos nas flores e o efeito dessas visitas na produção do algodão (número de maçãs e de sementes por maçã). Para isso, a cultura ficou em observação em março de 2002, nos primeiros cinco minutos em cada horário, das 8h às 17h, com três repetições (dias distintos). Também foram marcados 50 botões florais, sendo que 25 foram protegidos com sacos de papel e 25 permaneceram desprotegidos para avaliar a influência dos insetos na frutificação. As flores do algodoeiro abriram entre 8h e 9h e fecharam entre 17h e 18h. Os insetos observados nas flores foram a abelha Apis mellifera scutellata (africanizada) (50,3%), seguida do coleóptero Diabrotica speciosa (brasileirinho) (40,8%), outros himenópteros (5,0%), outros coleópteros (1,7%), lepidópteros (1,1%) e a abelha Trigona spp. (irapuá) (1,1%). Com exceção da abelha africanizada e da irapuá todos os insetos coletaram exclusivamente néctar nas flores. As abelhas africanizadas preferiram coletar néctar (95,6%), visitando as flores das 9h às 16h, com pico de freqüência às 13h. O brasileirinho visitou as flores das 8h às 17h, tendo um pico de freqüência às 15h. O número de maçãs não diferiu entre os tratamentos (protegido e desprotegido), entretanto, o número de sementes por maçã foi maior no tratamento desprotegido (29,45 sementes/maçã, em média) que no protegido (20,65% sementes/maçã, em média). A abelha africanizada foi considerada polinizadora efetiva da culturaUniversidade Estadual de Maringá2008-04-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/180810.4025/actasciagron.v26i4.1808Acta Scientiarum. Agronomy; Vol 26 No 4 (2004); 461-465Acta Scientiarum. Agronomy; v. 26 n. 4 (2004); 461-4651807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1808/1263Sanchez Junior, João Luiz BeneditoMalerbo-Souza, Darclet Terezinhainfo:eu-repo/semantics/openAccess2022-11-23T18:37:32Zoai:periodicos.uem.br/ojs:article/1808Revistahttp://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:2022-11-23T18:37:32Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Pollinators frequency on cotton flowers and production - DOI: 10.4025/actasciagron.v26i4.1808 Freqüência dos insetos na polinização e produção de algodão - DOI: 10.4025/actasciagron.v26i4.1808 |
title |
Pollinators frequency on cotton flowers and production - DOI: 10.4025/actasciagron.v26i4.1808 |
spellingShingle |
Pollinators frequency on cotton flowers and production - DOI: 10.4025/actasciagron.v26i4.1808 Sanchez Junior, João Luiz Benedito Gossypium hirsutum Apis mellifera comportamento forrageiro 5.00.00.00-4 Ciências Agrárias |
title_short |
Pollinators frequency on cotton flowers and production - DOI: 10.4025/actasciagron.v26i4.1808 |
title_full |
Pollinators frequency on cotton flowers and production - DOI: 10.4025/actasciagron.v26i4.1808 |
title_fullStr |
Pollinators frequency on cotton flowers and production - DOI: 10.4025/actasciagron.v26i4.1808 |
title_full_unstemmed |
Pollinators frequency on cotton flowers and production - DOI: 10.4025/actasciagron.v26i4.1808 |
title_sort |
Pollinators frequency on cotton flowers and production - DOI: 10.4025/actasciagron.v26i4.1808 |
author |
Sanchez Junior, João Luiz Benedito |
author_facet |
Sanchez Junior, João Luiz Benedito Malerbo-Souza, Darclet Terezinha |
author_role |
author |
author2 |
Malerbo-Souza, Darclet Terezinha |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Sanchez Junior, João Luiz Benedito Malerbo-Souza, Darclet Terezinha |
dc.subject.por.fl_str_mv |
Gossypium hirsutum Apis mellifera comportamento forrageiro 5.00.00.00-4 Ciências Agrárias |
topic |
Gossypium hirsutum Apis mellifera comportamento forrageiro 5.00.00.00-4 Ciências Agrárias |
description |
Insects frequency on cotton pollination and production. The present experiment was conducted at University Centre Moura Lacerda, Ribeirão Preto, state of São Paulo, and had the aim of studying the insects frequency and behaviour on cotton flowers (Gossypium hirsutum L.) as well as the collection type (nectar and/or pollen) of these insects and the effectiveness of their visits on cotton production. To do so, the culture remained under observation on March, 2002, during the first five minutes in each time, from 8:00 to 17:00, with three repetitions. We also marked 50 flowers buds: 25 covered with paper bags and 25 uncovered, in order to evaluate the insects influence on fructification. The cotton flowers opened between 8:00 and 9:00 and closed between 17:00 and 18:00. The insects which were observed in the flowers were the africanized honey bee Apis mellifera scuellata (50.3%), followed by the cleoptero (brasileirinho) Diabrotica speciosa (40.8%), other hymenoptera (5.0%), other coleoptera (1.7%), lepidoptera (1.1%), and the bee Trigona spp. (irapuá) (1.1%). Apart form the africanized honey bee and the irapuá, all the insects collected exclusively nectar from the flowers. The africanized honey bees preferred to collect nectar (95.6%) and visited the flowers from 9:00 to 16:00, with frequency peak at 13:00. Brasileirinho visited the flowers from 8:00 to 17:00, with frequency peak at 15:00. The number of apples was not different in the treatments (covered and uncovered), however, the number of seeds was higher in the uncovered treatment (29.45 seeds/apple, on average) than in the covered one (20.65 seeds/apple, on average). The africanized honey bee was considered as an effective pollinator of this culture |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-04-11 |
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/1808 10.4025/actasciagron.v26i4.1808 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1808 |
identifier_str_mv |
10.4025/actasciagron.v26i4.1808 |
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/1808/1263 |
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 26 No 4 (2004); 461-465 Acta Scientiarum. Agronomy; v. 26 n. 4 (2004); 461-465 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_ |
1799305904058793984 |