Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations

Detalhes bibliográficos
Autor(a) principal: Silva,Alexandre de Almeida e
Data de Publicação: 2005
Outros Autores: Varanda,Elenice Mouro, Primavesi,Ana Cândida
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

Registros relacionados