Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1187572
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dc.contributor.authorSANTOS, D. G.
dc.contributor.authorREZENDE, K. A. S.
dc.contributor.authorSILVA, T. F.
dc.contributor.authorSILVA, B. L.
dc.contributor.authorMARQUES, V. M.
dc.contributor.authorSANTOS, N. M.
dc.contributor.authorPEREIRA, P. S.
dc.contributor.authorTARDIN, F. D.
dc.contributor.authorAUAD, A. M.
dc.contributor.authorSIMEONE, M. L. F.
dc.contributor.authorMENDES, S. M.
dc.date.accessioned2026-06-15T12:48:47Z-
dc.date.available2026-06-15T12:48:47Z-
dc.date.created2026-06-15
dc.date.issued2026
dc.identifier.citationPhytoparasitica, v. 54, art. 73, 2026.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1187572-
dc.descriptionThe sorghum aphid, Melanaphis sorghi (Theobald, 1904) (Hemiptera: Aphididae), is a significant pest. This study classified the host suitability of seven Poaceae genotypes: commercial and wild sorghum (S. bicolor, S. sudanense, S. bicolor verticilliflorum), pearl millet (Pennisetum glaucum), and maize (Zea mays). Aphid biological performance was assessed via leaf-disc bioassays under controlled conditions (24±2 °C, 60±10% RH). Infestation progression and plant injury were evaluated in greenhouse trials. Plant cell wall composition was analyzed using NIRS spectroscopy. Results established a clear host suitability gradient. All Sorghum genotypes were suitable hosts, supporting positive population growth. The commercial hybrid AG1090 exhibited the highest net reproductive rate (R₀=16.17). Pearl millet and maize were non-hosts, with reproduction virtually absent (R₀≤0.08). Greenhouse data confirmed this pattern, with sorghum genotypes (e.g., S. sudanense, S. bicolor verticilliflorum) reaching infestation levels above 84%, while pearl millet and maize remained below 24% with no visible injury. Statistical analysis revealed that plant susceptibility was positively correlated with leaf hemicellulose content. Principal Component Analysis (PCA) segregated susceptible sorghum genotypes from the non-host species based on this biochemical factor. It is concluded that pearl millet and maize are not hosts for M. sorghi. The cell wall composition, specifically hemicellulose content, is a key factor influencing aphid infestation levels. These findings provide a basis for developing sorghum cultivars with reduced susceptibility.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectEspectroscopia
dc.subjectInfravermelho próximo
dc.subjectInteração inseto-planta
dc.titleBiological performance of Melanaphis sorghi (Theobald, 1904) (Hemiptera: Aphididae) on different host plants.
dc.typeArtigo de periódico
dc.subject.thesagroSorgo
dc.subject.thesagroPraga de Planta
dc.subject.thesagroPulgão
dc.subject.thesagroSorghum Bicolor
riaa.ainfo.id1187572
riaa.ainfo.lastupdate2026-06-15
dc.identifier.doihttps://doi.org/10.1007/s12600-026-01406-7
dc.contributor.institutionUNIVERSIDADE FEDERAL DE SAO JOAO DEL-REI; UNIVERSIDADE FEDERAL DE SAO JOAO DEL-REI; UNIVERSIDADE FEDERAL DE SÃO JOAO DEL-REI; UNIVERSIDADE FEDERAL DE LAVRAS; UNIVERSIDADE FEDERAL DE SÃO JOAO DEL-REI; UNIVERSIDADE FEDERAL DE LAVRAS; UNIVERSIDADE FEDERAL DE SAO JOAO DEL REI; FLAVIO DESSAUNE TARDIN, CNPMS; ALEXANDER MACHADO AUAD, CNPGL; MARIA LUCIA FERREIRA SIMEONE, CNPMS; SIMONE MARTINS MENDES, CNPMS.
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