Biological performance of Melanaphis sorghi (Theobald, 1904) (Hemiptera: Aphididae) on different host plants.

Vista sencilla de ítem
dc.contributorUNIVERSIDADE 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.
dc.creatorSANTOS, D. G.
dc.creatorREZENDE, K. A. S.
dc.creatorSILVA, T. F.
dc.creatorSILVA, B. L.
dc.creatorMARQUES, V. M.
dc.creatorSANTOS, N. M.
dc.creatorPEREIRA, P. S.
dc.creatorTARDIN, F. D.
dc.creatorAUAD, A. M.
dc.creatorSIMEONE, M. L. F.
dc.creatorMENDES, S. M.
dc.date2026-06-15T12:48:47Z
dc.date2026-06-15T12:48:47Z
dc.date2026-06-15
dc.date2026
dc.date.accessioned2026-07-07T05:28:36Z
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.identifierPhytoparasitica, v. 54, art. 73, 2026.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1187572
dc.identifierhttps://doi.org/10.1007/s12600-026-01406-7
dc.identifier.urihttp://hdl.handle.net/123456789/492483
dc.languageeng
dc.rightsopenAccess
dc.subjectEspectroscopia
dc.subjectInfravermelho próximo
dc.subjectInteração inseto-planta
dc.subjectSorgo
dc.subjectPraga de Planta
dc.subjectPulgão
dc.subjectSorghum Bicolor
dc.titleBiological performance of Melanaphis sorghi (Theobald, 1904) (Hemiptera: Aphididae) on different host plants.
dc.typeArtigo de periódico

Archivos

Colecciones

Embrapa Maíz y Sorgo (CNPMS)