In 2019, IITA scientists published 234 articles in peer-reviewed Thomson-indexed journals. The top 50 articles with the highest impact factor from the different hubs are presented here by research theme.

Biotech & Plant Breeding

Tripathi, L., Ntui, V. O. & Tripathi, J. Application of genetic modification and genome editing for developing climate-smart banana. Food and Energy Security, 2019. 1–16. Impact factor: 4.781

Amah, D., van Biljon, A., Maziya-Dixon, B., Labuschagne, M. & Swennen, R. Effects of In vitro polyploidization on agronomic characteristics and fruit carotenoid content; implications for banana genetic improvement. Frontiers in Plant Science. 10: 1450, 2019. 1–12. Impact factor: 4.106

Batte, M., Swennen, R., Uwimana, B., Akech, V., Brown, A., Tumuhimbise, R. , Hovmalm, H. P., Geleta, M. & Ortiz, R. Crossbreeding east African highland bananas: lessons learnt relevant to the botany of the crop after 21 years of genetic enhancement. Frontiers in Plant Science. 10: 81, 2019. 1–9. Impact factor: 4.106

Gedil, M. & Menkir, A. An integrated molecular and conventional breeding scheme for enhancing genetic gain in maize in Africa. Frontiers in Plant Science, 10: 1430, 2019. 1–17. Impact factor: 4.106

Ikeogu, U. N., Akdemir, D., Wolfe, M., Okeke, U. G., Chinedozi, A., Jannink, J. & Egesi, C. Genetic correlation, genomewide association and genomic prediction of portable NIRS predicted carotenoids in cassava roots. Frontiers in Plant Science. 10:1570, 2019. 1–11. Impact factor: 4.106

Merga, I. F., Tripathi, L., Hvoslef-Eide, A. K. & Gebre, E. Application of genetic engineering for control of bacterial wilt disease of enset, Ethiopia’s sustainability crop. Frontiers in Plant Science. 10: 133, 2019. 1–8. Impact factor: 4.106

Simonikova, D., Nemeckova, A., Karafiatova, M., Uwimana, B., Swennen, R., Dolezel, J. & Hribova, E. Chromosome painting facilitates anchoring reference genome sequence to chromosomes In Situ and integrated karyotyping in banana (Musa spp.). Frontiers in Plant Science. 10: 1503, 2019. 1–12. Impact factor: 4.106

Van Wesemael, J., Kissel, E., Eyland, D., Lawson, T., Swennen, R., & Carpentier, S. Using growth and transpiration phenotyping under controlled conditions to select water efficient banana genotypes. Frontiers in Plant Science, 10: 352, 2019. 1–14. Impact factor: 4.106

Agre, A. P., Asibe, F., Darkwa, K., Edemodu, A., Bauchet, G. J., Asiedu, R., Adebola, P. O. & Asfaw, A. Phenotypic and molecular assessment of genetic structure and diversity in a panel of winged yam (Dioscorea alata) clones and cultivars. Scientific Reports. 9: 18221, 2019. 1–11. Impact factor: 4.011

Annor, B., Badu-Apraku, B., Nyadanu, D., Akromah, R. & Fakorede, M. Testcross performance and combining ability of early maturing maize inbreds under multiplestress environments. Scientific Reports. 9: 13809, 2019. 1–11. Impact factor: 4.011

Drapal, M., de Carvalho, E. B., Rouard, M., Amah, D., Sardos, J., & Van den Houwe, I., Brown, A., Roux, N., Swennen, R. & Fraser, P. D. Metabolite profiling characterises chemotypes of musa diploids and triploids at juvenile and preflowering growth stages. Scientific Reports. 9: 4657, 2019. 1–10. Impact factor: 4.011

Tripathi, L., Tripathi, J., Shah, T., Muiruri, K. S. & Katari, M. S. Molecular basis of disease resistance in banana progenitor Musa balbisiana against Xanthomonas campestris pv. musacearum. Scientific Reports, 9: 7007, 2019. 1–17. Impact factor: 4.011

Nyine, M., Uwimana, B., Akech, V., Brown, A., Ortiz, R., Dolezel, J., Lorenzen, J. & Swennen, R. Association genetics of bunch weight and its component traits in east African highland banana (Musa spp. AAA group). Theoretical and Applied Genetics, 2019. 1–14. Impact factor: 3.926

Badu-Apraku, B., Talabi, A. O., Fakorede, M., Fasanmade, Y., Gedil, M., Magorokosho, C. & Asiedu, R. Yield gains and associated changes in an early yellow bi-parental maize population following genomic selection for Striga resistance and drought tolerance. BMC Plant Biology. 19: 129, 2019. 1–17. Impact factor: 3.670

Natural Resource Management

Stevenson, J., Vanlauwe, B., Macours, K., Johnson, N., Krishnan, L., Place, F., Spielman, D., Hughes, K. & Vlek, P. Farmer adoption of plot- and farm-level natural resource management practices: between rhetoric and reality. Global Food Security. 20, 2019. 101–104. Impact factor: 5.456

Buchen, C., Roobroeck, D., Augustin, J., Behrendt, U., Boeckx, P. & Ulrich, A. High N2O consumption potential of weakly disturbed fen mires with dissimilar denitrifier community structure. Soil Biology & Biochemistry, 130, 2019. 63–72. Impact factor: 5.290

Leip, A., Ledgard, S., Uwizeye, A., Palhares, J. C. P., Aller, M. F., Amon, B., Binder, M., Cordovil, C. M., De Camillis, C., Dong, H., Fusi, A., Helin, J., Hortenhuber, S., Hristov, A. N., Koelsch, R., Liu, C., Masso, C., Nkongolo, N. V., Patra, A. K., Redding, M. R., Rufino, M. C., Sakrabani, R., Thomas, G., Vertes, F. & Wang, Y. The value of manure – manure as co-product in life cycle assessment. Journal of Environmental Management. 241, 2019. 293–304. Impact factor: 4.865

Segnini, A., Posadas, A., da Silva, W. T., Milori, D. M., Gavilan, C., Claessens, L. & Quiroz, R. Quantifying soil carbon stocks and humification through spectroscopic methods: a scoping assessment in EMBU-Kenya. Journal of Environmental

Management. 234, 2019. 476–483. Impact factor: 4.865 Mathenge, C., Thuita, M., Masso, C., GweyiOnyango, J. & Vanlauwe, B. Variability of soybean response to rhizobia inoculant, vermicompost, and a legume-specific fertilizer blend in Siaya County of Kenya. Soil and Tillage Research. 194: 104290, 2019. 1–13. Impact factor: 4.675

Roobroeck, D., Hood-Nowotny, R., Nakubulwa, D., Tumuhairwe, J. B., Mwanjalolo, M. J., Ndawula, I. & Vanlauwe, B. Biophysical potential of crop residues for biochar carbon sequestration and co-benefits, in Uganda. Ecological Applications, 2019. 1–10. Impact factor: 4.378

Hendriks, C.M.J., Stoorvogel, J., Lutz, F. & Claessens, L. When can legacy soil data be used, and when should new data be collected instead? Geoderma. 348, 2019. 181–188. Impact factor: 4.336

Ampaire, E., Acosta, M., Huyer, S., Kigonya, R., Muchunguzi, P., Muna, R. & Jassogne, L. Gender in climate change, agriculture, and natural resource policies: insights from east Africa. Climatic Change, 2019. 1–18. Impact factor: 4.168

Wichern, J., Descheemaeker, K., Giller, K., Ebanyat, P., Taulya, G. & van Wijk, M. T. Vulnerability and adaptation options to climate change for rural livelihoods—a country-wide analysis for Uganda. Agricultural Systems. 176, 1–14. Impact factor: 4.131

Marinho, F., Oehl, F., da silva, I. R., Coyne, D., da Nobrega Veras, J. S. & Maia, L. C. High diversity of arbuscular mycorrhizal fungi in natural and anthropized sites of a Brazilian tropical dry forest (Caatinga). Fungal Ecology. 40, 2019. 82–91. Impact factor: 3.990

Vanlauwe, B., Hungria, M., Kanampiu, F. The role of legumes in the sustainable intensification of African smallholder agriculture: lessons learnt and challenges for the future. Agriculture, Ecosystems and Environment, 2019. 1–13. Impact factor: 3.954

Katterer, T., Roobroeck, D., Andren, O., Kimutai, G., Karltun, E., Kirchmann, H., Nyberg, G., Vanlauwe, B. & Roing de Nowina, K. Biochar addition persistently increased soil fertility and yields in maize-soybean rotations over 10 years in sub-humid regions of Kenya. Field Crops Research. 235, 2019. 18–26. Impact factor: 3.868

Schoorl, J. M., Veldkamp, A., Claessens, L., Wijbrans, J. R., Olago, D. O. & Lievens, C. Late quaternary lahars and lava dams: fluvial responses of the upper Tana river (Kenya). Geomorphology. 341, 2019. 28–45. Impact factor: 3.681

Nutrition/Human health

Carvajal-Yepes, M., Cardwell, K., Nelson, A., Garrett, K. A., Giovani, B., Saunders, D. G. O., Kamoun, S., Legg, J., Verdier, V., Lessel, J., Neher, R. A., Day, R. S., Day, R., Pardey, P., Gullino, M. L., Records, A. R., Bextine, B., Leach, J. E., Staiger, S. & Tohme, J. A global surveillance system for crop diseases. Science. 364: 6447, 2019. 1237–1239. Impact factor: 41.037

Weedall, G. D., Mugenzi, L. M., Menze, B. D., Tchouakui, M., Ibrahim, S. S., AmvongoAdjia, N., Irving, H., Wondji, M. J., Tchoupo, M., Djouaka, R. F., Riveron, J. & Wondji, C. S. A cytochrome P450 allele confers pyrethroid resistance on a major African malaria vector, reducing insecticide-treated bednet efficacy. Translational Medicine. 11(484): eaat7386, 2019. 1–13. Impact factor: 17.161

Udomkun, P., Tirawattanawanich, C., Ilukor, J., Sridonpai, P., Njukwe, E., Nimbona, P. & Vanlauwe, B. Promoting the use of locally produced crops in making cereal-legume based composite flours: an assessment of nutrient, antinutrient, mineral molar ratios, and aflatoxin content. Food Chemistry. 286, 2019. 651–658. Impact factor: 5.399

Gondwe, T., Alamu, E. O., Mdziniso, P. & MaziyaDixon, B. Cowpea (Vigna unguiculata (L.) Walp) for food security: an evaluation of end-user traits of improved varieties in Swaziland. Scientific Reports. 9: 15991, 2019. 1–6. Impact factor: 4.011

Shumo, M., Osuga, I.M., Khamis, F.M., Tanga, C.M., Fiaboe, K., Subramanian, S., Ekesi, S., Van Huis, A. & Borgemeister, C. The nutritive value of black soldier fly larvae reared on common organic waste streams in Kenya. Scientific Reports. 9: 10110, 2019. 1—13. Impact factor: 4.011

Plant Production/Health

Aregbesola, O. Z., Legg, J., Sigsgaard, L., Lund, O. and Rapisarda, C. Potential impact of climate change on whiteflies and implications for the spread of vectored viruses. Journal of Pest Science. 92(2), 2019. 381–392. Impact factor: 5.133

Agbetiameh, D., Ortega-Beltran, A., Awuah, R. T., Atehnkeng, J., Islam, M. S., Callicott, K., Cotty, P. & Bandyopadhyay, R. Potential of atoxigenic Aspergillus flavus vegetative compatibility groups associated with maize and groundnut in Ghana as biocontrol agents for aflatoxin management. Frontiers in Microbiology. 10: 2069, 2019. Impact factor: 4.259

Bandyopadhyay, R., Atehnkeng, J., OrtegaBeltran, A., Akande, A., Falade, T. D. O. & Cotty, P. “Ground-truthing” efficacy of biological control for aflatoxin mitigation in farmers’ fields in Nigeria: from field trials to commercial usage, a 10-year study. Frontiers in Microbiology. 10: 2528, 2019. 1–23. Impact factor: 4.259

Kachapulula, P., Bandyopadhyay, R. & Cotty, P. Aflatoxin contamination of non-cultivated fruits in Zambia. Frontiers in Microbiology 10: 1840, 2019. 1–9. Impact factor: 4.259

Shenge, K. C., Adhikari, B. N., Akande, A., Callicott, K., Atehnkeng, J., Ortega-Beltran, A., Kumar, P. L., Bandyopadhyay, R. & Cotty, P. Aflatoxin contamination of non-cultivated fruits in Zambia. Frontiers in Microbiology 10: 1840, 2019. 1–9. Impact factor: 4.259

Wolfgang, A., Taffner, J., Guimaraes, R. A., Coyne, D. & Berg, G. Novel strategies for soilborne diseases: exploiting the Microbiome and volatile-based mechanisms toward controlling Meloidogyne-based disease complexes. Frontiers in Microbiology. 10: 1296, 2019. 1–15. Impact factor: 4.259

Bubici, G., Kaushal, M., Prigigallo, M. I., GomezLama Cabanas, C. & Mercado-Blanco, J. Biological control agents against Fusarium wilt of banana. Frontiers in Microbiology. 10: 616, 2019. 1–33. Impact factor: 4.259

Mahuku, G., Nzioki, H. S., Mutegi, C., Kanampiu, F., Narrod, C. & Makumbi, D. Pre-harvest management is a critical practice for minimizing aflatoxin contamination of maize. Food Control. 96, 2019. 219–226. Impact factor: 4.248

Kaushal, M. Microbes in cahoots with plants: MIST to hit the jackpot of agricultural productivity during drought. International Journal of Molecular Sciences. 20: 1769, 2019. 1–22. Impact factor: 4.183

Kaushal, M., Mandyal, P. & Kaushal, R. Field based assessment of Capsicum annuum performance with inoculation of rhizobacterial consortia. Microorganisms. 7: 89, 2019. 1–12. Impact factor: 4.167

Milenovic, M., Wosula, E. N., Rapisarda, C. & Legg, J. Impact of host plant species and whitefly species on feeding behavior of Bemisia tabaci. Frontiers in Plant Science. 10(1), 2019. 1–14. Impact factor: 4.106

Ramcharan, A., McCloskey, P., Baranowski, K., Mbilinyi, N., Mrisho, L., Ndalahwa, M., Legg, J. & Hughes, D. P. A mobile-based deep learning model for cassava disease diagnosis. Frontiers in Plant Science. 10: 272, 2019. 1– 8. Impact factor: 4.106

Nagoshi, R. N., Goergen, G., du Plessis, H., Van den Berg, J. & Meagher, R. L. Genetic comparisons of fall armyworm populations from 11 countries spanning sub-Saharan Africa provide insights into strain composition and migratory behaviors. Scientific Reports. 9: 8311, 2019. 1–11. Impact factor: 4.011

Sserumaga, J. P., Ortega-Beltran, A., Wagacha, M., Mutegi, C. & Bandyopadhyay, R. Aflatoxin-producing fungi associated with pre-harvest maize contamination in Uganda. International Journal of Food Microbiology, 2019. 1–34. Impact factor: 4.006

Aikore, M. O. S., Ortega-Beltran, A., Eruvbetine, D., Atehnkeng, J., Falade, T. D. O., Cotty, P. & Bandyopadhyay, R. Performance of broilers fed with maize colonized by either toxigenic or atoxigenic strains of Aspergillus flavus with and without an aflatoxin-sequestering agent. Toxins. 11: 565, 2019. 1–13. Impact factor: 3.895

Ezekiel, C. N., Ortega-Beltran, A., Oyedeji, E. O., Atehnkeng, J., Kossler, P., Tairu, F., Hoeschle-Zeledon, I., Karlovsky, P., Cotty, P. & Bandyopadhyay, R. Aflatoxin in chili peppers in Nigeria: extent of contamination and control using atoxigenic aspergillus flavus genotypes as biocontrol agents. Toxins. 11: 429, 2019. 1–14. Impact factor: 3.895

Shehu, B. M., Lawan, B. A., Jibrin, J. M., Kamara, A., Mohammed, I. B., Rurinda, J., Zingore, S., Craufurd, P., Vanlauwe, B., Adam, A. M. & Merckx, R. Balanced nutrient requirements for maize in the northern Nigerian Savanna: parameterization and validation of QUEFTS model. Field Crops Research. 241: 107585, 2019. 1–12. Impact factor: 3.868

Social Science/Agric Business

Andrade, J. F., Edreira, J. I. R., Farrow, A., van Loon, M. P., Craufurd, P. Q., Rurinda, J., Zingore, S., Chamberlin, J., Claessens, L., Adewopo, J. van Ittersum, M. K., Cassman, K. G. & Grassini, P. A spatial framework for ex-ante impact assessment of agricultural technologies. Global Food Security. 20, 2019. 72–81. Impact factor: 5.456

Petsakos, A., Prager, S. D., Gonzalez, C., Gama, A. C., Sulser, T. B., Gbegbelegbe, S., Kikulwe, E. & Hareau, G. Understanding the consequences of changes in the production frontiers for roots, tubers and bananas. Global Food Security. 20, 2019. 180–188. Impact factor: 5.456

Gbegbelegbe, S., Alene, A., Kamara, A., Wiebe, K., Manyong, V., Abdoulaye, T. & Mkandawire, P. Ex-ante evaluation of promising soybean innovations for sub-Saharan Africa. Food and Energy Security, 2019. 1–16. Impact factor: 4.781

Abass, A., Adegoke, G. O., Awoyale, W., Gaspar, A., Mlingi, N., Andrianavalona, V., Randrianarivelo, R., Sulyok, M., Mneney, A. & Ranaivoson, R. Enumeration of the microbiota and microbial metabolites in processed cassava products from Madagascar and Tanzania. Food Control. 99, 2019. 164–170. Impact factor: 4.248

Oyinbo, O., Chamberlin, J., Vanlauwe, B., Vranken, L., Kamara, A., Craufurd, P. & Maertens, M. Farmers’ preferences for high input agriculture supported by site-specific extension services: evidence from a choice experiment in Nigeria. Agricultural Systems. 173, 2019. 12–26. Impact factor: 4.131

Hirpa Tufa, A., Alene, A., Manda, J., Akinwale, M. G., Chikoye, D., Feleke, S., Assfaw Wossen, T. & Manyong, V. productivity and income effects of adoption of improved soybean varieties and agronomic practices in Malawi. World Development. 124: 104631, 2019. 1–10. Impact factor: 3.905

Manda, J., Alene, A., Hirpa Tufa, A., Abdoulaye, T., Assfaw Wossen, T., Chikoye, D. & Manyong, V. The poverty impacts of improved cowpea varieties in Nigeria: a counterfactual analysis. World Development. 122, 2019. 261–271. Impact factor: 3.905

Haile, M. G., Assfaw Wossen, T. & Kalkuhl, M. Access to information, price expectations and welfare: the role of mobile phone adoption in Ethiopia. Technological Forecasting & Social Change. 145, 2019. 82– 92. Impact factor: 3.815 Assfaw Wossen, T., Alene, A., Abdoulaye, T., Feleke, S. & Manyong, V. Agricultural technology adoption and household welfare: measurement and evidence. Food Policy, 2019. 1–9. Impact factor: 3.788

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