Welcome to the International Institute of Tropical Agriculture Research Repository
IITA Bibliography is a collection of agricultural research publications produced by IITA scientists, research fellows, and students from 1972 to date. The collection includes journal articles, books and book chapters, conference proceedings, training and extension materials, theses, and other publications. IITA conducts research in these thematic areas: biotechnology and plant breeding, natural resource management, social science and agribusiness, plant production and plant health, and nutrition and human health.
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Distribution and diversity of alternate hosts of Maruca vitrata Fabricius in three west African countries (2021)The evolution of resistance to the Bacillus thuringiensis (Bt) toxins by insect pests is a major threat to Bt technology. However, the rate of resistance can be slowed with appropriate integrated insect resistance management (IRM) strategies. Surveys were conducted to identify alternate host species for Maruca vitrata (commonly called the legume pod borer or Maruca) that could serve as refuges for Pod-Borer Resistant (PBR) cowpea in three West African countries (Ghana, Nigeria, and Burkina Faso). ...
Progeny fitness determines the performance of the parasitoid Therophilus javanus, a prospective biocontrol agent against the legume pod borer (2021)Therophilus javanus (Bhat & Gupta) is an exotic larval endoparasitoid newly imported from Asia into Africa as a classical biological control agent against the pod borer Maruca vitrata (Fabricius). The parasitoid preference for the five larval instars of M. vitrata and their influence on progeny sex ratio were assessed together with the impact of larval host age at the time of oviposition on development time, mother longevity and offspring production. In a choice situation, female parasitoids ...
Cocoyam (Colocasia esculenta) provides an effective monoxenic culture media for Radopholus similis (2021)The burrowing nematode, Radopholus similis, is the most economically important nematode parasite of bananas, in addition to parasitising a range of other crops (Coyne & Kidane, 2018). Weakened, infected roots result in poor plant development and they are less able to provide anchorage to banana plants, which can lead to toppling of the entire plant. To enable research activities, such as resistance screening and efficacy studies, a readily available supply of inoculum is required for timely use ...
Genome wide association analysis of a stemborer egg induced “call‑for‑help” defence trait in maize (2020)Tritrophic interactions allow plants to recruit natural enemies for protection against herbivory. Here we investigated genetic variability in induced responses to stemborer egg-laying in maize Zea mays (L.) (Poaceae). We conducted a genome wide association study (GWAS) of 146 maize genotypes comprising of landraces, inbred lines and commercial hybrids. Plants were phenotyped in bioassays measuring parasitic wasp Cotesia sesamiae (Cameron) (Hymenoptera: Braconidae) attraction to volatiles collected ...
Rapid determination of fructooligosaccharide in solar‑dried banana syrup by using near‑infrared spectroscopy (2021)The transformation of value-added solar-dried banana to banana syrup, which contains very high levels of fructooligosaccharides (FOS), is attractive. It has promising economic potential for the nutraceutical and functional food industry. In this study, the near-infrared (NIR) spectroscopy was used for the detection of 1-kestose (GF2), nystose (GF3), 1F-fructofuranosylnystose (GF4), and total FOS in solar-dried banana syrup in the spectral region of 4000–12,000 cm−1. Partial Least Squares (PLS) ...