Resistance of tropical maize genotypes to the larger grain borer

Resistance of tropical maize genotypes to the larger grain borer

Post-harvest losses caused by the larger grain borer (LGB, Prostephanus truncatus ) aggravate food insecurity among small-scale farmers. Host plant resistance is a method of LGB control which should be prioritized in order to reduce these losses. The objective of this study was to assess maize resis...

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Veröffentlicht in:Journal of pest science 2012-06, Vol.85 (2), p.267-275
Hauptverfasser: Mwololo, J. K., Mugo, S. N., Tefera, T., Okori, P., Munyiri, S. W., Semagn, K., Otim, M., Beyene, Y.
Format: Artikel
Sprache:eng
Schlagworte:
Agriculture
Biomedical and Life Sciences
Body weight loss
Borers
Coefficient of variation
Corn
Ecology
Entomology
Food security
Forestry
Gene banks
Genotypes
Germplasm
Grain
Host plants
Hybrids
Insects
Life Sciences
Nutrient content
Original Paper
Pest resistance
Pests
Plant Pathology
Plant resistance
Plant Sciences
Post-harvest decay
Prostephanus truncatus
Proteins
Small farms
Small-scale farming
Starch
Weight loss measurement
Zea mays
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Beschreibung
Zusammenfassung:Post-harvest losses caused by the larger grain borer (LGB, Prostephanus truncatus ) aggravate food insecurity among small-scale farmers. Host plant resistance is a method of LGB control which should be prioritized in order to reduce these losses. The objective of this study was to assess maize resistance to the larger grain borer and recognize some potential causes of resistance. One hundred and sixty-three (163) genotypes were tested; these included 85 hybrids, 2 checks, 6 open pollinate varieties, and 70 landraces, among them gene bank accessions. Grain biochemical content, (protein, oil and starch) and insect resistance parameters, (percentage grain damage, weight loss, flour weight, and number of emerged insects) were measured. There were significant differences ( P  
ISSN:1612-4758
1612-4766
DOI:10.1007/s10340-012-0427-0