Relationship between chemical fertilization in sorghum and Melanaphis sacchari/sorghi (Hemiptera: Aphididae) populations

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dc.creatorJosé Arturo Schlickmann-Tank
dc.creatorOscar Morales-Galván
dc.creatorJoel Pineda-Pineda
dc.creatorGonzalo Espinosa-Vázquez
dc.creatorMaría Teresa Colinas-León
dc.creatorMateo Vargas-Hernández
dc.date2020
dc.date.accessioned2026-07-07T02:43:59Z
dc.descriptionThe aphid Melanaphis sacchari/sorghi is considered the most important pest of sorghum cultivation in Mexico. It can cause losses in production of up to 100%. This research was conducted at the Universidad Autonoma Chapingo during 2018 and 2019 with the objective of determining the relationship between chemical fertilization in sorghum and M. sacchari/ sorghi (Hemiptera: Aphididae) populations. Different levels of nitrogen (125, 250 and 500 kg ha-1), phosphorus (19.5, 39 and 78 kg ha-1) and potassium (210 and 420 kg ha-1) were supplied to sorghum plants planted in polyethylene pots with a capacity of 6 L under greenhouse conditions. The plants were infested with a total of 15 third-instar nymphs within 60 d of crop emergence. A total of 6 samplings were carried out at 7 d intervals, starting at 7 d after the infestation. Quantifications of total soluble proteins, total soluble sugars, reducing sugars, and levels of nitrogen, phosphorus, potassium and magnesium in leaf tissue were also performed. We observed that higher doses of nitrogen and phosphorus increased the aphid population, while increasing the potassium dose considerably decreased the aphid population. We also found a positive correlation between the aphid population and the total soluble protein concentrations, reducing sugars and nitrogen levels, while the correlation was negative with potassium levels in leaves.
dc.formatapplication/pdf
dc.identifier0120-9965
dc.identifierhttps://www.redalyc.org/articulo.oa?id=180376042007
dc.identifierhttps://www.redalyc.org/journal/1803/180376042007/
dc.identifierhttps://www.redalyc.org/journal/1803/180376042007/html/
dc.identifierhttps://www.redalyc.org/journal/1803/180376042007/180376042007.epub
dc.identifierhttps://www.redalyc.org/journal/1803/180376042007/movil
dc.identifier10.15446/agron.colomb.v38n3.87308
dc.identifier.urihttp://hdl.handle.net/123456789/422160
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1803
dc.rightsAgronomía Colombiana
dc.sourceAgronomía Colombiana (Colombia) Num.3 Vol.38
dc.subjectAgrociencias
dc.titleRelationship between chemical fertilization in sorghum and Melanaphis sacchari/sorghi (Hemiptera: Aphididae) populations
dc.typeartículo científico

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Agronomía Colombiana - Universidad Nacional de Colombia