Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations
Autor(a) principal: | |
---|---|
Data de Publicação: | 2005 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bragantia |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052005000200010 |
Resumo: | Plants have inherent variability of mineral content which affects their physiology and consequently the herbivorous insects feeding on them. Besides, insects need considerable amounts of potassium, phosphorus and magnesium in their diets, whereas little calcium, sodium and chloride are required. In this study, the inherent variation on mineral (Ca, S, Mg, N, P, K and also C:N ratio) concentrations and aphid (Acyrthosiphon spp., Therioaphis maculata, Aphis craccivora) populations on three alfalfa (Medicago sativa) cultivars (P3; Crioula, the most widely cultivated in Brazil, and CUF 101, an aphid-resistant) were studied between September/1997 and August/1998. A significant variation on mineral concentrations and aphid populations was observed among different sampling times and cultivars. The correlations between C:N ratio, Mg, N, P and S concentrations and aphid density variation suggest that the mineral status affects aphid population dynamics under field conditions. |
id |
IAC-1_3e0553039529a5a4dc0fa30583378bc0 |
---|---|
oai_identifier_str |
oai:scielo:S0006-87052005000200010 |
network_acronym_str |
IAC-1 |
network_name_str |
Bragantia |
repository_id_str |
|
spelling |
Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populationsAphididaeinsectanutrientsresistanceplant-insect relationPlants have inherent variability of mineral content which affects their physiology and consequently the herbivorous insects feeding on them. Besides, insects need considerable amounts of potassium, phosphorus and magnesium in their diets, whereas little calcium, sodium and chloride are required. In this study, the inherent variation on mineral (Ca, S, Mg, N, P, K and also C:N ratio) concentrations and aphid (Acyrthosiphon spp., Therioaphis maculata, Aphis craccivora) populations on three alfalfa (Medicago sativa) cultivars (P3; Crioula, the most widely cultivated in Brazil, and CUF 101, an aphid-resistant) were studied between September/1997 and August/1998. A significant variation on mineral concentrations and aphid populations was observed among different sampling times and cultivars. The correlations between C:N ratio, Mg, N, P and S concentrations and aphid density variation suggest that the mineral status affects aphid population dynamics under field conditions.Instituto Agronômico de Campinas2005-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052005000200010Bragantia v.64 n.2 2005reponame:Bragantiainstname:Instituto Agronômico de Campinas (IAC)instacron:IAC10.1590/S0006-87052005000200010info:eu-repo/semantics/openAccessSilva,Alexandre de Almeida eVaranda,Elenice MouroPrimavesi,Ana Cândidaeng2006-01-09T00:00:00Zoai:scielo:S0006-87052005000200010Revistahttps://www.scielo.br/j/brag/https://old.scielo.br/oai/scielo-oai.phpbragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br1678-44990006-8705opendoar:2006-01-09T00:00Bragantia - Instituto Agronômico de Campinas (IAC)false |
dc.title.none.fl_str_mv |
Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations |
title |
Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations |
spellingShingle |
Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations Silva,Alexandre de Almeida e Aphididae insecta nutrients resistance plant-insect relation |
title_short |
Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations |
title_full |
Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations |
title_fullStr |
Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations |
title_full_unstemmed |
Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations |
title_sort |
Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations |
author |
Silva,Alexandre de Almeida e |
author_facet |
Silva,Alexandre de Almeida e Varanda,Elenice Mouro Primavesi,Ana Cândida |
author_role |
author |
author2 |
Varanda,Elenice Mouro Primavesi,Ana Cândida |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Silva,Alexandre de Almeida e Varanda,Elenice Mouro Primavesi,Ana Cândida |
dc.subject.por.fl_str_mv |
Aphididae insecta nutrients resistance plant-insect relation |
topic |
Aphididae insecta nutrients resistance plant-insect relation |
description |
Plants have inherent variability of mineral content which affects their physiology and consequently the herbivorous insects feeding on them. Besides, insects need considerable amounts of potassium, phosphorus and magnesium in their diets, whereas little calcium, sodium and chloride are required. In this study, the inherent variation on mineral (Ca, S, Mg, N, P, K and also C:N ratio) concentrations and aphid (Acyrthosiphon spp., Therioaphis maculata, Aphis craccivora) populations on three alfalfa (Medicago sativa) cultivars (P3; Crioula, the most widely cultivated in Brazil, and CUF 101, an aphid-resistant) were studied between September/1997 and August/1998. A significant variation on mineral concentrations and aphid populations was observed among different sampling times and cultivars. The correlations between C:N ratio, Mg, N, P and S concentrations and aphid density variation suggest that the mineral status affects aphid population dynamics under field conditions. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052005000200010 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052005000200010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0006-87052005000200010 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Agronômico de Campinas |
publisher.none.fl_str_mv |
Instituto Agronômico de Campinas |
dc.source.none.fl_str_mv |
Bragantia v.64 n.2 2005 reponame:Bragantia instname:Instituto Agronômico de Campinas (IAC) instacron:IAC |
instname_str |
Instituto Agronômico de Campinas (IAC) |
instacron_str |
IAC |
institution |
IAC |
reponame_str |
Bragantia |
collection |
Bragantia |
repository.name.fl_str_mv |
Bragantia - Instituto Agronômico de Campinas (IAC) |
repository.mail.fl_str_mv |
bragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br |
_version_ |
1754193298365349888 |