Consulta: subjectFacets:"Plant-insect relation"
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Data/hora: 12/06/2024 05:42:20

Effect of the inherent variation in the mineral concentration of alfalfa cultivars on aphid populations
Provedor de dados: 53
Autores: Silva,Alexandre de Almeida e; Varanda,Elenice Mouro; Primavesi,Ana Cândida.
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...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aphididae; Insecta; Nutrients; Resistance; Plant-insect relation.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052005000200010