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| A counterfactual analysis of the impact of occupational safety and health training for cocoa farmers in Ghana: significance and treatment heterogeneity, Dechering, W. and Muilerman, S., International Institute of Tropical Agriculture (IITA), 2015. |
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| A framework for conceptualizing impact assessment and promoting impact culture in agricultural research, Alene, A., Manyong, V., Gockowski, J., Coulibaly, O. and Abele, S., Impact series, 2006. |
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| A framework to understand the social impacts of agricultural trade, Schaafsma, M., Dreoni, I., Ayompe, L. M., Egoh, B. N., Ekayana, D. P.*, Favareto, A.*, Mumbunan, S.*, Nakagawa, L.*, Ngouhouo-Poufoun, J., Sassen, M., Uehara, T. K. and Matthews, Z., in: Sustainable Development, volume 31, number 1, pages 138-150, ISSN 0968-0802, 2022. [DOI] |
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| A robust DayCent model calibration to assess the potential impact of integrated soil fertility management on maize yields, soil carbon stocks and greenhouse gas emissions in Kenya, Laub, M., Necpalova, M., Van de Broek, M., Corbeels, M., Ndungu, S. M., Mucheru-Muna, M.*, Mugendi, D.*, Yegon, R.*, Waswa, W., Vanlauwe, B. and Six, J., in: EGUsphere (Preprint), pages 1-47, 2023. [DOI] |
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| A spatial framework for ex-ante impact assessment of agricultural technologies, 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. and Grassini, P., in: Global Food Security, volume 20, pages 72-81, ISSN 2211-9124, 2019. [DOI] |
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| Accelerating agronomic impact through digital tools and public-private extension in Rwanda: smart fertilizer recommendations for potato: smart fertilizer recommendations for rice, Mudereri, B. T., Chernet, M.+, Cyamweshi, A. R.*, Kayumba, J.*, Vandamme, E., Uzamushaka, S., Nshimiyimana, J. C., Kreye, C., Abera, W., Aubert, C ., Borus, D. and Demo, P., 2024. |
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| Achievements in impact assessment of agricultural research: IITA experience, 2001-2006, Manyong, V., Alene, A., Sanogo, D., Coulibaly, O., Abele, S. and Nkamleu, G. B., IMPACT, International Institute of Tropical Agriculture (IITA), ISBN 978-131-292-0, 2006. |
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| Achieving development impact and environmental enhancement through adoption of balanced management systems by farmers in West African Savanna, Nziguheba, G., Nwoke, C. and Abaidoo, R., pages 1-82, International Institute of Tropical Agriculture (IITA), 2006. |
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| Achieving Development Impact and Environmental Enhancement through Adoption of Balanced Nutrient Management Systems by Farmers in the West African Savanna (BNMS II), IITA, , 2008. |
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| Adaptation strategies to climate change and impacts on household income and food security: evidence from Sahelian region of Niger, Zakari, S., Ibro, G.*, Moussa, B.* and Abdoulaye, T., in: Sustainability, volume 14, number 5: 2847, pages 1-18, ISSN 2071-1050, 2022. [DOI] |
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| Adding value through the mechanization of post-harvest cassava processing, and its impact on household poverty in north-eastern Zambia, Abass, A., Amaza, P.*, Bachwenkizi, B., Alenkhe, B., Mukuka, I.* and Cromme, N., in: Applied Economics Letters, pages 1-5, ISSN 1350-4851, 2016. [DOI] |
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| Adoption and ex-post impacts of improved cowpea varieties on productivity and net returns in Nigeria, Manda, J., Alene, A., Hirpa Tufa, A., Abdoulaye, T., Kamara, A., Olufajo, O.*, Boukar, O. and Manyong, V., in: Journal of Agricultural Economics, pages 1-19, ISSN 0021-857X, 2019. [DOI] |
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| Adoption and impact of dry-season dual-purpose cowpea in the semiarid zone of Nigeria, Inaizumi, H., Singh, B., Sanginga, P., Manyong, V., Adesina, A. and Tarawali, S., Impact series, International Institute of Tropical Agriculture (IITA), ISBN 978 131 171 1, 1999. |
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| Adoption and impact of improved cassava and sweetpotato varieties on food security in Malawi, Jumbo, S., Mahungu, N., Mhone, A., Moyo, C., Sandifolo, V., Siyeni, D., Nthonyiwa, A. and Sichinga, K., in: Proceedings of 9th ISTRC-AB symposium, pages 26-33, Mombasa, Kenya, 2007. |
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| Adoption and impact of improved technologies in developing countries: the case of Imazapyr-resistant maize in Western Kenya, Mignouna, D., Mutabazi, K. D.* and Manyong, V., LAP LAMBERT Academic Publishing. (BOOK), ISBN 978-3659115769, 2012. |
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| Adoption and impact of tissue culture bananas in Burundi, Ouma, E., Van Asten, P. and Dubois, T., In: Book of Abstracts of CIALCA International Conference on "Challenges and Opportunities for Agricultural Intensification of the Humid-Highland Systems of sub-Saharan Africa", Kigali, Rwanda, 24-27 October, 2011. |
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| Adoption and impact of tissue culture bananas in Burundi: an application of a propensity score matching approach, Ouma, E., Dubois, E., Kabunga, N., Nkurunziza, S., Qaim, M. and Van Asten, P., pages 216-223, chapter 26, CABI International, ISBN 9781780642314, 2013. [DOI] |
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| Adoption and impacts of improved post-harvest technologies on food security and welfare of maize-farming households in Tanzania: a comparative assessment, Mutungi, C., Manda, J., Feleke, S., Abass, A., Bekunda, M., Hoeschle-Zeledon, I. and Fischer, G., in: Food Security, pages 1-17, ISSN 1876-4517, 2023. [DOI] |
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| Adoption and impacts of sustainable agricultural practices on maize yields and incomes: evidence from rural Zambia, Manda, J., Alene, A., Gardebroek, C., Kassie, M. and Tembo, G.*, in: Journal of Agricultural Economics, pages 1-24, ISSN 0021-857X, 2015. [DOI] |
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| Adoption and impacts of sustainable intensification practices in Ghana, Kotu, B. H., Alene, A., Manyong, V., Hoeschle-Zeledon, I. and Larbi, A., in: International Journal of Agricultural Sustainability, volume 15, number 5, pages 539-554, ISSN 1473-5903, 2017. [DOI] |
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| Adoption and welfare impacts of multiple agricultural technologies: evidence from eastern Zambia, Khonje, M., Manda, J., Mkandawire, P., Hirpa Tufa, A. and Alene, A., in: Agricultural Economics, volume 49, number 5, pages 599-609, ISSN 0169-5150, 2018. [DOI] |
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| Adoption of agronomic practices and their impact on crop yield and income: an analysis for black gram and green gram in India, Varma, P.* and Manda, J., in: Journal of Agricultural Economics, pages 1-25, ISSN 0021-857X, 2024. [DOI] |
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| Adoption of improved soybean and gender differential productivity and revenue impacts: evidence from Nigeria, Kamara, A. Y.*, Oyinbo, O.*, Manda, J., Kamsang, L.* and Kamai, N., in: Food and Energy Security, number -: e385, pages 1-25, ISSN 2048-3694, 2022. [DOI] |
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| Advances, impacts, and future opportunities for genetic improvement of cowpeas, Singh, B., in: Bean/Cowpea Conference, Dakar, Senegal Sept : proceedings, N/A, 2005. |
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| Aflatoxins in the nut chains: strategies to reduce their impact on consumer health and economic losses, Chulze, S., Alaniz Zanon, M. S., Taniwaki, M. H.*, Tsitsigiannis, D., Olsen, M., Ortega-Beltran, A., Herrera, M.*, Vargas, E.*, Logrieco, A. and Battilani, P., in: World Mycotoxin Journal, volume 17, number 1, pages 35-56, ISSN 1875-0710, 2024. [DOI] |
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| Agricultural intensification scenarios, household food availability and greenhouse gas emissions in Rwanda: ex-ante impacts and trade-offs, Paul, B. K., Frelat, R., Birnholz, C., Ebong, C.*, Gahigi, A.*, Groot, J. C. J., Herrero, M., Kagabo, D., Notenbaert, A., Vanlauwe, B. and van Wijk, M. T., in: Agricultural Systems, pages 1-13, ISSN 0308-521X, 2017. [DOI] |
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| Alley cropping in the moist savanna of West Africa II. Impact on soil productivity in a north-to-south transect in Togo, Tossah, B.*, Samba, D. K., Vanlauwe, B., Sanginga, N., Lyasse, O., Diels, J . and Merckx, R ., in: Agroforestry Systems, volume 42, number 3, pages 229-244, ISSN 0167-4366, 1999. |
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| An assessment of economic and social impacts of the cassava mosaic disease project in the Democratic Republic of Congo, Rusike, J., Mahungu, N., Lukombo, S.*, Kendenga, T, Bidiaka, S., Alene, A., Lema, A. and Manyong, V., Abstract (Oral presentation) in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010. |
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| An assessment of the impact of biological and chemical grasshopper control agents on ground-dwelling arthropods in Niger, based on presence/absence sampling, Peveling, R., Attignon, S., Langewald, J. and Ouambama, Z., in: Crop Protection, volume 18, number 5, pages 323-339, ISSN 0261-2194, 1999. |
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| An impact assessment of IITA's benchmark area approach, Douthwaite, B., Baker, D., Weise, S., Gockowski, J., Manyong, V. and Keatinge, J., Impact series, 2003. |
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| An impact assessment of the cassava enterprise development project. (BOOK), Tarawali, G., Abdoulaye, T., Ellis-Jones, J., Asumugha, G.*, Dixon, A.*, Okechukwu, R., Ezedinma, C.+, Sanni, L., Isife, B.*, Ogisi, D. and Ekpere, J.*, International Institute of Tropical Agriculture (IITA). (BOOK), 2013. |
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| An integrated assessment of climate change impacts and adaptation in maize-based smallholder crop-livestock systems in Kenya, Claessens, L ., Valdivia, R. O., Gummadi, S., Kilavi, M.*, Recha, J., Dickson, C. and Antle, J. M., Climate Change Impacts, Adaptation, and Mitigation, volume 2, pages 33-96, chapter 2, World Scientific, ISBN 978-1-78634-874-3, 2021. [DOI] |
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| Analysis of adoption and impacts of improved maize varieties in Eastern Zambia, Khonje, M., Manda, J., Alene, A. and Kassie, M., in: World Development, volume 66, pages 695-706, ISSN 0305-750X, 2015. [DOI] |
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| Arbuscular mycorrhizal fungi colonization, plant parasitic nematodes and their impact on East African highland banana performance in Rwanda, Gaidashova, S.*, Van Asten, P., Delvaux, B., De Waele, D. and Declerck, S., Abstract (Poster Presentation) in Book of Abstracts of CIALCA International Conference on "Challenges and Opportunities for Agricultural Intensification of the Humid-Highland Systems of sub-Saharan Africa", Kigali, Rwanda, 24-27 October, 2011. |
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| Assessing delivery and business models for high impact digital solutions at scale: the case of Rwanda Smart Nkunganire System (SNS), Sartas, M., Mudereri, B. T., Senge, M., Rabourn, T. R., Ogunsanmi, T., Uzamushaka, S., Kihoro, E., Kangethe, E.*, Muzata, B., Guchu, W. and Kamau, E., EiA, 2024. |
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| Assessing the impact of agricultural research on rural livelihoods: achievements, gaps, and options, Alene, A., Manyong, V., Abele, S. and Sanogo, D., International Institute of Tropical Agriculture (IITA), 2007. |
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| Assessing the impact of COVID-19 on gender equality and the youth and social inclusion in the Democratic Republic of Congo, Cole, S. M., Dontsop-Nguezet, P., Bokanga, M., Bamba, Z. and Manyong, V., Study brief, 2021. [DOI] |
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| Assessing the impact of deficit irrigation on plant growth, leaf folding and transpiration in banana (Musa spp.), Van Geit, H., Katholieke Universiteit Leuven, 2019. |
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| Assessing the impact of genotype-by-environment interactions on agronomic traits in elite cowpea lines across agro-ecologies in Nigeria, Popoola, B., Ongom, P. O., Mohammed, S. B., Togola, A., Ishaya, D. J., Bala, G., Fatokun, C. and Boukar, O., in: Agronomy, volume 14, number 2: 263, pages 1-16, ISSN 2073-4395, 2024. [DOI] |
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| Assessing the impact of Gliricidia agroforestry-based interventions on crop nutritional, antinutritional, functional, and mineral compositions in eastern Province, Zambia, Alamu, E. O., Njoloma, J., Akello, J., Ngumayo, J.*, Ray, C.*, Mehreteab, T., Chikoye, D., Nyoka, I., Dale, L.* and Nagothu, U. S., in: Agroecology and Sustainable Food Systems, pages 1-21, ISSN 2168-3565, 2023. [DOI] |
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| Assessing the impact of Youth-in-Agribusiness Program on poverty and vulnerability to poverty in Nigeria, Bello, L. O., Baiyegunhi, L. J.*, Danso-Abbeam, G.*, Ogunniyi, A. I., Abdoulaye, T., Manyong, V., Bamba, Z. and Awotide, B. A., in: Agriculture, volume 12, number 5: 735, pages 1-14, ISSN 2077-0472, 2022. [DOI] |
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| Assessing the impacts of cassava technology on poverty reduction in Africa, Feleke, S., Manyong, V., Abdoulaye, T. and Alene, A., in: Studies in Agricultural Economics, volume 118, number 2, pages 101-111, ISSN 1418-2106, 2016. [DOI] |
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| Assessing the potential impact of Integrated Agricultural Research for Development (IAR4D) on adoption of improved cereal-legume crop varieties in the Sudan Savannah Zone of Nigeria, Binam, J. N., Abdoulaye, T., Olarinde, L., Kamara, A. and Adekunle, A., in: Journal of Agricultural and Food Information, volume 12, number 2, pages 177-198, ISSN 1049-6505, 2011. [DOI] |
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| Assessment of climate change impact and adaptation strategy for millet in the Sudano-Sahelian region of Niger, Tofa, A., Kamara, A., Mohamed, A. M. L., Garba, M., Souley, A. M.*, Salissou, H., Kapran, B. I. and Abdoulaye, T., in: Regional Environmental Change, volume 24, number -: 151, pages 1-15, ISSN 1436-3798, 2024. [DOI] |
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| Assessment of potential impact of Bt cowpea on nontarget arthropods, Huesing, J., Romeis, J. and Tamo, M., Abstract (Oral presentation) in Program and Book of Abstracts of the 5th World Cowpea Research Conference, held at Palm Beach Hotel, Saly, Senegal. 27 September - 1 October, 2010. |
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| Assessment of the impact of crop management strategies on the yield of early-maturing maize varieties in the drylands of Niger Republic: Application of the DSSAT-CERES-Maize model, Kamara, A., Garba, M., Tofa, A., Mohamed, A. M. L., Souley, A. M.*, Abdoulaye, T. and Kapran, B. I., in: Heliyon, volume 9, number -: e17829, pages 1-23, ISSN 2405-8440, 2023. [DOI] |
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| Bacterial wilt and drought stresses in banana production and their impact on economic welfare in Uganda: implications for banana research in East African Highlands, Abele, S. and Pillay, M., in: Journal of Crop Improvement, volume 19, number 1/2, pages 173-191, 2007. |
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| Banana and plantain in Africa: harnessing international partnerships to increase research impact, IITA, , ISHS, 2010. |
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| Banana Xanthomonas wilt in the DR Congo: impact, spread and management, Ndungo, V.*, Fiaboe, K. and Mwangi, M., in: Journal of Applied Biosciences, volume 1, number 1, pages 1-7, ISSN 1997-5902, 2008. |
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| Baseline study for impact assessment of high quality insect resistant cowpea in West Africa, Coulibaly, O., Aitchedji, C., Gbegbelegbe, S.+, Mignouna, H. and Lowenberg-DeBoer, J., African Agricultural Technology Foundation, ISBN 9966-775-03-X, 2008. |
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| Benefits of legume-maize rotations: assessing the impact of diversity on the productivity of smallholders in Western Kenya, Ojiem, J. O.*, Franke, A. C.*, Vanlauwe, B., de Ridder, N. and Giller, K., in: Field Crops Research, volume 168, pages 75-85, ISSN 0378-4290, 2014. [DOI] |
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| Between isomorphism and entrepreneurship: the impact of standardisation on product quality, market access and livelihoods in Kenyan banana production: Proceedings of TROPENTAG., Matui, M. S., Ingenbleek, P., Linnemann, A., van Trijp, H. and Abass, A., 2011. |
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| Beyond average: are the yield and income impacts of adopting drought-tolerant maize varieties heterogeneous?, Kamara, A. Y.*, Oyinbo, O.*, Manda, J., Kamara, A., Idowu, E. O.* and Mbavai, J. J.*, in: Climate and Development, pages 1-10, ISSN 1756-5529, 2023. [DOI] |
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| Bioactive composition and free radical scavenging activity of fresh orange maize hybrids: impacts of genotype, maturity stages, and processing methods, Alamu, E. O., Maziya-Dixon, B., Menkir, A., Irondi, E. A.* and Olaofe, O.*, in: Frontiers in Nutrition, volume 8, number : 640563, pages 1-10, ISSN 2296-861X, 2021. [DOI] |
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| Biological control of cassava green mite in Kenya: spread and persistence of the predatory mite Typhlodromalus aripo, and impact on cassava green mite and cassava root yield, Kariuki, C., Hanna, R., Toko, M., Ngari, B. and Irungu, R., in: Book of Abstracts of the 9th Triennial Symposium of the International Society for Tropical Root Crops-Africa Branch, 31 October-5 November 2004, Mombasa, Kenya, 2004. |
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| Biological control of cassava green mites in Africa: impact of the predatory mite Typhlodromalus aripo, Onzo, A., Hanna, R. and Sabelis, M., in: Entomologische Berichten, volume 65, number 1, pages 2-7, 2005. |
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| Boric acid for the suppression of the ant, Anoplolepis tenella and impact on infestations of its tended scale insect, Stictococcus vayssierei in cassava fields, Fotso Kuate, A., Hanna, R., Nanga, S. N., Tindo, M.* and Nagel, P., Abstract, p. 282 in the book of abstracts and programme of the 12th Triennial Symposium of International Society for Tropical Root Crops-Africa Branch (ISTRC-AB), 30 - 5, October, Alisa Hotel, Accra, Ghana, 2013. |
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| Botanical preparations for the protection of stored rice seed Oryza sativa from rice weevil Sitophilus oryzae and their impact on Oryza sativa germination, Sartie, A. M., McGill, C., Koolaard, J., Epenhuijsen, K. V. and Carpenter, A., in: Seed Science and Technology, volume 38, pages 717-729, ISSN 0251-0952, 2010. |
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| Building partnerships and encouraging innovation for sustainable maize production: the West and Central Africa Collaborative Maize Research Network, achievements and impact, Badu-Apraku, B., Menkir, A., Fakorede, M.*, Ajala, S. and Ellis-Jones, J., International Institute of Tropical Agriculture (IITA), ISBN 978-978-8444-03-9, 2012. |
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| Canopy structure in soybean monocultures and soybean-sorghum mixtures: impact on aphid (Homoptera: Aphididae) landing rates, Bottenberg, H. and Irwin, E. M., in: Environmental Entomology, volume 21, number 3, pages 542-548, 1992. |
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| Capacity building to mitigate mycotoxins impact on children health in East Africa (CapAfrica). Proceedings of Science forum 2013., Torelli, E., Yassin, M. and Beed, F., BMZ and CGIAR Independent Science and Partnership Council, 2013. |
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| Changes in the rhizosphere and root-associated bacteria community of white Guinea yam (Dioscorea rotundata Poir.) impacted by genotype and nitrogen fertilization, Idowu, A. P., Yamamoto, K., Koizumi, T., Matsutani, M., Takada, K., Shiwa, Y., Asfaw, A., Matsumoto, R., Ouyabe, M., Pachakkil, B., Kikuno, H. and Shiwachi, H., in: Heliyon, volume 10, number -: e33169, pages 1-15, ISSN 2405-8440, 2024. [DOI] |
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| Characterising quality traits of boiled yam: texture and taste for enhanced breeding efficiency and impact, Adinsi, L.*, Moussa, I. D.*, Honfozo, L.*, Bouniol, A., Meghar, K., Alamu, E. O., Adesokan, M., Arufe, S., Ofoeze, M.*, Okoye, B.*, Madu, T.*, Hotegni, F.*, Chijioke, U.*, Otegbayo, B.*, Dufour, D., Hounhouigan, J. D.*, Ceballos, H., Mestres, C. and Akissoe, N. H.*, in: Journal of the Science of Food and Agriculture, pages 1-29, ISSN 0022-5142, 2023. [DOI] |
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| Classical biological control of cassava green mite in the Democratic Republic of Congo: population dynamics of the exotic predator of Typhlodromalus aripo and its impact on cassava green mite, Tata-Hangy, K.*, Hanna, R. and Toko, M., International Institute of Tropical Agriculture (IITA), 2001. |
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| Climate change adaptation strategies and its impact on household vulnerability to food insecurity: a micro-Level evidence from Southwest Ethiopia, Begashaw, A.*, Ketema, M.*, Mehare, A.*, Gurmu, M., Feleke, S. and Abdoulaye, T., in: Sustainability, volume 16, number -: 5766, pages 1-16, ISSN 2071-1050, 2024. [DOI] |
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| Climate change impact and adaptation of rainfed cereal crops in sub-Saharan Africa, Alimagham, S., van Loon, M. P., Ramirez-Villegas, J., Adjei-Nsiah, S., Baijukya, F., Bala, A.*, Chikowo, R.*, Silva, J. V., Soulé, A. M.*, Taulya, G., Tenorio, F. A., Tesfaye, K. and van Ittersum, M. K., in: European Journal of Agronomy, volume 155, number -: 127137, pages 1-13, ISSN 1161-0301, 2024. [DOI] |
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| Climate change impacts and adaptation strategies for crops in west Africa: a systematic review, Carr, T. W., Mkuhlani, S., Segnon, A. C., Ali, Z.*, Zougmore, R., Dangour, A. D., Green, R. and Scheelbeek, P., in: Environmental Research Letters, volume 17, number 5: 053001, pages 1-24, ISSN 1748-9326, 2022. [DOI] |
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| Climate change impacts and potential benefits of heat-tolerant maize in south Asia, Tesfaye, K., Zaidi, P., Gbegbelegbe, S., Boeber, C., Rahut, D. B., Getaneh, F., Seetharam, K., Erenstein, O. and Stirling, C., in: Theoretical and Applied Climatology, pages 1-12, ISSN 0177-798X, 2016. [DOI] |
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| Cocoa intensification scenarios and their predicted impact on CO2 emissions, biodiversity conservation, and rural livelihoods in the Guinea rain forest of West Africa, Gockowski, J. and Sonwa, D., in: Environmental Management, volume 48, number 2, pages 307-321, ISSN 0364-152X, 2011. [DOI] |
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| Cocoa intensification scenarios and their predicted impact on CO2 emissions, biodiversity conservation, and rural livelihoods in the Guinean rainforest of West Africa, Gockowski, J. and Sonwa, D., in: Outcome and impact assessment at IITA: Issues and evidence. Proceedings of a mini-symposium on outcome and impact assessment at IITA., pages 5-7, International Institute of Tropical Agriculture (IITA), IITA, 2011. |
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| Contributions of integrated soil fertility management (ISFM) to various sustainable intensification impact domains in Tanzania, Kihara, J., Manda, J., Kimaro, A. A., Swai, E.*, Mutungi, C., Kinyua, M., Okori, P., Fischer, G., Kizito, F.+ and Bekunda, M., in: Agricultural Systems, volume 203, number -: 103496, pages 1-16, ISSN 0308-521X, 2022. [DOI] |
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| Costs associated with farmer field schools and video viewing clubs on cocoa integrated crop and pest management: the experience of STCP. STCP Impact Brief, no. 8, Muilerman, S. and David, S., number 8, 2011. |
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| Cowpea entomology research at IITA and its impact on food production in the tropics, Jackai, L., in: Nigeria Journal of Entomology, volume 6, pages 87-97, 1985. |
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| Cutting dipping application of Flupyradifurone against cassava whiteflies Bemisia tabaci and impact on its parasitism in cassava, Caspary, R., Wosula, E. N., Issa, K. A., Amour, M. and Legg, J., in: Insects, volume 14, number -: 796, pages 1-15, ISSN 2075-4450, 2023. [DOI] |
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| Determinants of adopting imazapyr-resistant maize technologies and its impact on household income in Western Kenya, Mignouna, D., Manyong, V., Rusike, J., Mutabazi, K. D.* and Senkondo, E. *, in: AgBioForum, volume 14, number 3, pages 1-6, ISSN 1522-936X, 2011. |
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| Distribution and potential impact of cassava variety spread by UPoCA, Okechukwu, R., James, B., Ntawuruhunga, P., Mahungu, N., Boahen, S., Kanju, E. and Osei-Sarfoh, A., in: Tropical Roots and Tuber Crops and the Challenges of Globalization and Climate Changes. Proceedings of the 11th triennial Symposium of the ISTRC-AB, 4 to 8 October 2010, pages 325-331, ISTRC-AB, Ibadan, Nigeria, 2012. |
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| Distribution and potential impact of cassava variety spread by UPoCA, Okechukwu, R., James, B., Ntawuruhunga, P., Mahungu, N., Boahen, S., Kanju, E., Osei-Sarfoh, A., Fannah, S., Jumbo, S., Sonder, K. and Alabi, T. R., Abstract in Book of Abstracts of the 11th Triennial Symposium of ISTRC-AB, held at Memling Hotel, Kinshasa. 4-8 October, 2010. |
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| Distribution of improved varieties of cassava and potential impact on root yield and disease reduction in Nigeria, Okechukwu, R., Kehinde, I. A.*, Afolabi, C., James, B. and Egesi, C. N.*, in: African Journal of Root and Tuber Crops, volume 9, number 1, pages 58-63, ISSN 1118-2075, 2011. |
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| Diversity of aflatoxin-producing fungi and their impact on food safety in sub-Saharan Africa, Probst, C.+, Bandyopadhyay, R. and Cotty, P., in: International Journal of Food Microbiology, volume 174, pages 113-122, ISSN 0168-1605, 2014. [DOI] |
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| Does a cassava research-for-development program have impact at the farm level? Evidence from the Democratic Republic of Congo, Rusike, J., Mahungu, N., Lukombo, S., Kendenga, T, Bidiaka, S., Alene, A., Lema, A.* and Manyong, V., in: Food Policy, volume 46, pages 193-204, ISSN 0306-9192, 2014. [DOI] |
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| Does agricultural cooperative membership impact technical efficiency of maize production in Nigeria: an analysis correcting for biases from observed and unobserved attributes, Olagunju, K. O., Ogunniyi, A. I., Oyetunde-Usman, Z., Omotayo, A. O.* and Awotide, B. A., in: PloS ONE, volume 16, number 1: e0245426, pages 1-22, ISSN 1932-6203, 2021. [DOI] |
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| Does cassava processing research-for-development have an impact on fabricator, processor and farm level outcomes? Evidence from Nigeria. Proceedings of pre-conference workshop, 28th International Conference of Agricultural Economists., Rusike, J., Abdoulaye, T., Asumugha, G.*, Dixon, A.*, Manyong, V. and Ilona, P., 2012. |
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| Does the spillage of petroleum products in Anopheles breeding sites have an impact on the pyrethroid resistance?, Djouaka, R. F., Bakare, A. A.*, Bankole, H. S., Doannio, J. M. C., Coulibaly, O., Kossou, H., Tamo, M., Basene, H. I., Popoola, K. O. K. and Akogbeto, M. C., in: Malaria Journal, volume 6, number 159, 2007. [DOI] |
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| Impact of African weaver ant nests [Oecophylla longinoda Latreille (Hymenoptera: Formicidae)] on mango [Mangifera indica L. (Sapindales: Anacardiaceae)] leaves, Anato, F. M.*, Sinzogan, A.*, Adandonon, A.*, Hounlidji, X.*, Offenberg, J., Kossou, D.* and Vayssieres, J., in: Sociobiology, volume 62, number 1, pages 39-45, ISSN 0361-6525, 2015. [DOI] |
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| Impact of arbuscular mycorrhizal fungi and earthworms on soil aggregate stability, glomalin, and performance of pigeonpea, Cajanus cajan, Muchane, M.*, Pulleman, M. M., Vanlauwe, B., Jefwa, J.* and Kuyper, T. W., in: Soil Research, pages 1-13, ISSN 1838-675X, 2018. [DOI] |
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| Impact of breeders' collection on cocoa plantings of Ghana: assessment by molecular marker analysis and farmers' field survey, Opoku, S.*, Bhattacharjee, R., Kolesnikova-Allen, M., Enu-Kwesi, L.*, Asante, E. and Adu-Ampomah, Y.*, in: Journal of Ghana Science Association, volume 8, number 2, pages 1-12, 2006. |
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| Impact of conservation farming practices on Aspergillus population density, peanut aflatoxin level, and exposure risk in Zambia, Akello, J., Alamu, E. O., Mwila, C. M., Kachapulula, P., Mukanga, M.*, Njapau, H.*, Chikoye, D., Ortega-Beltran, A. and Bandyopadhyay, R., in: Frontiers in Sustainable Food Systems, volume 8, number -: 1331188, pages 1-14, ISSN 2571-581X, 2024. [DOI] |
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| Impact of forest cover degradation on diversity and pest status of grasshoppers in Africa, Kekeunou, S.*, Messi, J., Foahom, B. and Weise, S., in: XXII IUFRO World Congress, 8-13 August 2005, Brisbane, Australia, pages 391, 2005. |
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| Impact of frequency of application on the long-term efficacy of the biocontrol product Aflasafe in reducing aflatoxin contamination in maize, Atehnkeng, J., Ojiambo, P., Ortega-Beltran, A., Augusto, J., Cotty, P. J.* and Bandyopadhyay, R., in: Frontiers in Microbiology, volume 13, number -: 1049013, pages 1-14, ISSN 1664-302X, 2022. [DOI] |
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| Popular biofortified cassava cultivars are heavily impacted by plant parasitic nematodes, especially Meloidogyne Spp., Akinsanya, A. K., Afolami, S.*, Kulakow, P., Parkes, E. and Coyne, D., in: Plants, volume 9, number -: 802, pages 1-16, ISSN 2223-7747, 2020. [DOI] |
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| Possible impact of agroclimatological studies on food production in the humid tropics with particular reference to West Africa: paper presented at the WMO/FAO Tech. Conference on Application of Meteorology to Agriculture, IITA, Ibadan, April 12-16, 1977, Lawson, T. L., 1977. |
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| Potential impact of climate change on whiteflies and implications for the spread of vectored viruses, Aregbesola, O. Z., Legg, J., Sigsgaard, L., Lund, O. and Rapisarda, C., in: Journal of Pest Science, volume 92, number 2, pages 381-392, ISSN 1612-4758, 2019. [DOI] |
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| Production characteristics and strategies for adapting to the impacts of climate change on cassava whiteflies and viruses in Tanzania, Aregbesola, O. Z., Uzokwe, V. N. E., Adeloye, K. A.*, Rapisarda, C., Lund, O., Sigsgaard, L. and Legg, J., in: Vietnam Journal of Agricultural Sciences, volume 4, number 1, pages 921-935, ISSN 2588-1299, 2021. [DOI] |
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| Project C: supporting innovation processes (SINPRO) (assessing impact, formulating policy options, and systems analysis project), IITA, , 2003. |
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| Reducing child undernutrition through dietary diversification, reduced aflatoxin exposure, and improved hygiene practices: the immediate impacts in central Tanzania, Anitha, S., Muzanila, Y. C.*, Tsusaka, T. W., Kachulu, L., Kumwenda, N., Musoke, M., Swai, E.*, Shija, J.*, Siambi, M., Monyo, E., Bekunda, M. and Okori, P., in: Ecology of Food and Nutrition, volume 59, number 3, pages 243-262, ISSN 0367-0244, 2019. [DOI] |
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| Release, establishment, spread, and impact of the weevil Neohydronomus affinis (Coleoptera: Curculionidae) on water lettuce (Pistia stratiotes) in Bénin, West Africa, Ajuonu, O. and Neuenschwander, P., in: African Entomology, volume 11, pages 205-212, 2003. |
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| Shifting the goalposts - from high impact journals to high impact data, Gassner, A.*, Alvare, L. M., Bamba, Z., Beare, D.*, Bernardo, M.*, Biradar, C.*, van Brakel, M.*, Chapman, R., Dileepkumar, G.*, Dieng, I.*, Erlita, S., Fulss, R.*, Poole, J.*, Kshatriya, M., Selim, G.*, Simon, R.*, Sonder, K., Prasai, N., Garruccio, M., Rivas, S. S.*, Rajasekharan, M.* and Rao, C. S.*, 2013. |
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| Short- and medium-term impact of manual tillage and no-tillage with mulching on banana roots and yields in banana-bean intercropping systems in the East African Highlands, Muliele, T.*, Bielders, C. and Van Asten, P., in: Field Crops Research, volume 171, pages 1-10, ISSN 0378-4290, 2015. [DOI] |
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| Socioeconomic impact of cassava green mite biocontrol in Africa, Coulibaly, O., Hanna, R. and Toko, M., in: Paper presented at: Proceedings of the 3rd Inter-regional meeting of the Africa-wide Cassava Green Mite Biocontrol Project, pages 85-101, International Institute of Tropical Agriculture (IITA), Biological Control Center for Africa, Cotonou, 2003. |
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| Stakeholder perceptions about the drivers, impacts and barriers of certification in the Ghanaian cocoa and oil palm sectors, Dompreh, E. B., Asare, R. and Gasparatos, A., in: Sustainability Science, pages 1-22, ISSN 1862-4065, 2021. [DOI] |
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| Status of Stictoccocus vayssierei Richard and its impact on cassava root yield in the Bas-Fleuve district of the Democratic Republic of Congo, Tata-Hangy, K.*, Hanna, R., Lema, K., Bidiaka, M. and Ndambi, N., pages 37, International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 2001. |
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| Structural approaches to modeling the impact of climate change and adaptation technologies on crop yields and food security, Islam, S., Cenacchi, N., Sulser, T. B., Gbegbelegbe, S., Hareau, G., Kleinwechter, U., Manson-D'Croz, D., Nedumaran, S., Robertson, R., Robinson, S. and Wiebe, K., in: Global Food Security, volume 10, pages 63-70, ISSN 2211-9124, 2016. [DOI] |
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| Targeting agricultural research based on potential impacts on poverty reduction: strategic program priorities by agro-ecological zone in Nigeria, Alene, A., Manyong, V., Tollens, E. F. and Abele, S., in: Food Policy, volume 32, number 3, pages 394-412, 2007. |
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| Targeting agricultural research for development in Tanzania: an example of the use of GIS for ex ante impact assessment at IITA, Legg, C., pages 61-74, International Institute of Tropical Agriculture (IITA), ISBN 978 131 321 8, 2007. |
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| Targeting cowpea breeding and seed delivery efforts to enhance poverty impacts in sub-Saharan Africa, Coulibaly, O., Alene, A., Abdoulaye, T., Chianu, J., Manyong, V., Aitchedji, C., Fatokun, C., Kamara, A., Ousmane, B., Tefera, H. and Boahen, S., Abstract (Oral presentation) in Program and Book of Abstracts of the 5th World Cowpea Research Conference, held at Palm Beach Hotel, Saly, Senegal. 27 September - 1 October, 2010. |
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| Targeting cowpea breeding and seed delivery efforts to enhance poverty impacts in sub-Saharan Africa, Coulibaly, O., Alene, A., Abdoulaye, T., Chianu, J., Manyong, V., Aitchedji, C., Fatokun, C., Kamara, A., Boukar, O., Tefera, H., Boahen, S. and Chikoye, D., in: Innovative research along the cowpea value chain:proceedings of the Fifth World Cowpea Conference on improving livelihoods in science, held in Saly, Senegal, 27 september -1 October 2010, pages 358-368, IITA, Ibadan, Nigeria, 2012. |
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| Technical and institutional options for sorghum grain mold management and the potential for impact on the poor, Hall, A., Bandyopadhyay, R., Chandrashekar, A. and Shewry, P. R., in: Technical and institutional options for sorghum grain mold management: proceedings of an international consultation, 18-19 May 2000, ICRISAT, Patancheru, India, pages 7-33, International Crops Research Institute for the Semi Arid Tropics, 2000. |
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| Technical efficiency and impact evaluation differentials between the adopters and non-adopters of Nerica in the six baseline states in Nigeria, Obayelu, A. E.*, Adeoti, J. O.* and Dontsop-Nguezet, P., in: Review of Agricultural and Applied Economics, volume 20, number 1, pages 3-15, ISSN 1336-9261, 2017. [DOI] |
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| The differential impact of four tropical species of root-knot nematodes (Meloidogyne spp.) on biofortified cassava, Oyetunde, A. K., Afolami, S.*, Kulakow, P. and Coyne, D., in: Nematology, volume 24, pages 695-705, ISSN 1388-5545, 2022. [DOI] |
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| The dynamics of agricultural labor demand and their impact on rural labor markets in Central and Eastern Europe, Abele, S., Fiege, U. and Reinsberg, K., volume 39, pages 243-250, Münster-Hiltrup (Landwirtschaftsverlag), 2004. |
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| The economic and poverty impacts of maize research in West and Central Africa, Alene, A., Menkir, A., Ajala, S., Badu-Apraku, B., Olanrewaju, A., Manyong, V. and Ndiaye, A.*, in: Agricultural Economics, volume 40, number 5, pages 535-550, ISSN 0169-5150, 2009. |
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| The economic impact of climate change on farm decisions and food consumption in Ghana, Etwire, P. M., University of Otago, 2018. |
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| The economic impact of investments in cassava research in Uganda, Bua, A.*, Acola, G., Adupa, R., Otim-Nape, G.*, Baguma, Y.*, Sserunkuma, D., Manyong, V. and Coulibaly, O., pages 147-151, chapter 14, CABI, ISBN 978-1845932671, 2007. |
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| The efficiency - equity tradeoffs in agricultural research priority setting: the potential impacts of agricultural research on economic surplus and poverty reduction in Nigeria, Alene, A., Manyong, V., Tollens, E. F. and Abele, S., in: 26th Conference of the International Association of Agricultural Economists, Gold Coast, Australia, International Association of Agricultural Economists (IAAE), 2006. |
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| The estimated ex ante economic impact of Bt cowpea in Niger, Benin and Northern Nigeria, Gbegbelegbe, S.+, Lowenberg-DeBoer, J., Adeoti, R.+, Lusk, J. and Coulibaly, O., in: Agricultural Economics, volume 46, number 4, pages 563-577, ISSN 0169-5150, 2015. [DOI] |
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| The impact of a fluctuating agenda at the international level on cocoa farms in the humid forest zone of West and Central Africa: current issues, research and development implications, Sonwa, D. and Weise, S., in: 6th open meeting of the IHDP (International Human dimension program of Global Environmental Change Research community), University of Bonn, Germany 9-13 October, University of Bonn, Germany, 2005. |
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| The impact of agricultural research on productivity and poverty in sub-Saharan Africa, Alene, A. and Coulibaly, O., in: Food Policy, volume 34, number 2, pages 198-209, ISSN 0306-9192, 2009. |
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| The impact of biottechnology on food production in Africa: the cassava story, Hahn, S. K., Terry, E. R. and Russell, N., 1983. |
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| The impact of certification on the natural and financial capitals of Ghanaian cocoa farmers, Fenger, N., Bosselmann, A., Asare, R. and De Neergaard, A., in: Agroecology and Sustainable Food Systems, volume 41, number 2, pages 143-166, ISSN 1473-5903, 2017. [DOI] |
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| The impact of climate change on interdependence for microbial genetic resources for agriculture, Beed, F., number 48, 2011. |
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| The impact of credit on the technical efficiency of maize-producing households in northern Ghana, Martey, E., Wiredu, A., Etwire, P. M.* and Kuwornu, J. K.*, in: Agricultural Finance Review, pages 1-19, ISSN 0002-1466, 2019. [DOI] |
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| The impact of demonstration plots on improved agricultural input purchase in Tanzania: implications for policy and practice, Sseguya, H., Robinson, D. S., Mwango, H. R., Flock, J. A., Manda, J., Abed, R. and Mruma, S., in: PloS ONE, volume 16, number 1: e0243896, pages 1-16, ISSN 1932-6203, 2021. [DOI] |
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| The impact of globalization on the agricultural sectors of east and central African countries: ASARECA monograph, No. 1, Robbins, P. and Ferris, R. S. B., ASARECA monograph, No. 1, International Institute of Tropical Agriculture (IITA), ISBN 978-131-207-6, 2003. |
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| The impact of IARC genetic improvement programmes on cassava, Johnson, N., Manyong, V. and Pachico, D., pages 337-355, CABI, 2003. |
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| The impact of IITA-led biological control of major pests in sub-Saharan African agriculture: a synthesis of milestones and empirical results, Alene, A., Neuenschwander, P., Manyong, V., Coulibaly, O. and Hanna, R., Impact series, 2005. |
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| The impact of mechanized processing of cassava on farmers' production efficiency in Uganda, Abass, A., Amaza, P.*, Bachwenkizi, B., Wanda, K.*, Agona, A.* and Cromme, N., in: Applied Economics Letters, pages 1-5, ISSN 1350-4851, 2016. [DOI] |
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| The impact of participatory action research and endogenous integrated soil fertility management on farm-gate dietary outputs in northern Tanzania, Mponela, P., Manda, J., Kinyua, M. and Kihara, J., in: Heliyon, volume 9, number 11: e21888, pages 1-12, ISSN 2405-8440, 2023. [DOI] |
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| The impact of planting dates on the performance of soybean varieties [Glycine max (L.) Merr.] in the Nigerian Savannas, Eseigbe, O. B., Kamara, A., Miko, S.*, Omoigui, L., Solomon, R., Adeleke, M., Tofa, A. and Bebeley, J. F., in: Agronomy, volume 14, number 10: 2198, pages 1-18, ISSN 2073-4395, 2024. [DOI] |
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| The impact of SNP fingerprinting and parentage analysis on the effectiveness of variety recommendations in cacao, Padi, F. K.*, Ofori, A.*, Takrama, J.*, Djan, E.*, Opoku, S.*, Dadzie, A. M.*, Bhattacharjee, R., Motamayor, J. and Zhang, D., in: Tree Genetics and Genomes, volume 11, number 3, pages 1-14, ISSN 1614-2942, 2015. [DOI] |
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| The impact of the emergency response to the outbreak of the cassava mosaic disease in the Democratic Republic of Congo, Rusike, J., Mahungu, N., Lukombo, S., Kendenga, T, Bidiaka, S., Alene, A., Lema, A. and Manyong, V., in: Tropical Roots and Tuber Crops and the Challenges of Globalization and Climate Changes=Plantes a Racines et Tubercules Tropicales et les Defis de la Mondialisation et du Changement Climatique: Proceedings of the 11th triennial Symposium of the ISTRC-AB, pages 3-30, ISTRC-AB, Ibadan, Nigeria, 2012. |
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| The Impact of the NAFPP Program in Imo State, Okali, C. and Botei-Doku, E., 1978. |
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| The incidence of the cassava mosaic disease in relation with the source of planting materials and its impact on cassava production, Tata-Hangy, K.*, Legg, J., Lema, K., Hanna, R. and Luyindula, N.*, in: Root and tuber crops for poverty alleviation through science and technology for sustainable development: proceedings of the 10th Symposium of ISTRC-AB held from 8-12 October, 2007 in Maputo, Mozambique, pages 371-379, ISTRC-AB, 2010. |
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| The income and food security impacts of soil and water conservation technologies in Tanzania, Manda, J., Hirpa Tufa, A., Alene, A., Swai, E.*, Muthoni, F. K., Hoeschle-Zeledon, I. and Bekunda, M., in: Frontiers in Sustainable Food Systems, volume 7, number -: 1146678, pages 1-11, ISSN 2571-581X, 2023. [DOI] |
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| The poverty impacts of improved cowpea varieties in Nigeria: a counterfactual analysis, Manda, J., Alene, A., Hirpa Tufa, A., Abdoulaye, T., Assfaw Wossen, T., Chikoye, D. and Manyong, V., in: World Development, volume 122, pages 261-271, ISSN 0305-750X, 2019. [DOI] |
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| The poverty impacts of improved soybean technologies in Malawi, Hirpa Tufa, A., Alene, A., Manda, J., Feleke, S., Assfaw Wossen, T., Akinwale, M. G., Chikoye, D. and Manyong, V., in: Agrekon, pages 1-20, ISSN 0303-1853, 2021. [DOI] |
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| Think globally and act locally: assessing the environmental impacts of the Nigerian threatened native trees project, Awoyemi, A. G., Olasupo, O. E., Ajayi, A. D. and Brown, D., in: Societal Impacts, volume 4, number -: 100067, pages 1-4, ISSN 2949-6977, 2024. [DOI] |
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| Thirthy-six (36) Years of IITA: Impacts on science and livelihood, Ortiz, R., in: Business Day, 2003. |
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| Tillage and varietal impacts on tomato (Solanum lycopersicum L.) production on an ultisol in central Cameroon, Tueche, J., Norgrove, L., Hauser, S. and Cadisch, G., in: Soil & Tillage Research, volume 128, pages 1-8, ISSN 0167-1987, 2013. [DOI] |
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| Towards sustainable palm oil production: the positive and negative impacts on ecosystem services and human wellbeing, Ayompe, L. M., Schaafsma, M. and Egoh, B. N., in: Journal of Cleaner Production, volume 278, number -: 123914, pages 1-11, ISSN 0959-6526, 2021. [DOI] |
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| Training in impact assessment of agricultural innovations on food security, poverty reduction, and environmental protection in sub-Saharan Africa, Coulibaly, O., Adeoti, R., Manyong, V. and Sy, A., in: Outcome and impact assessment at IITA: issues and evidence, pages 14-15, 2011. |
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| Underground knowledge: estimating the impacts of soil information transfers through experimental auctions, Murphy, D. M. A., Roobroeck, D., Lee, D. R. and Thies, J., in: American Journal of Agricultural Economics, volume 102, number 5, pages 1468-1493, ISSN 0002-9092, 2020. [DOI] |
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| Understanding the factors influencing fall armyworm (Spodoptera frugiperda J.E. Smith) damage in African smallholder maize fields and quantifying its impact on yield: a case study in eastern Zimbabwe, Baudron, F., Zaman-Allah, M. A., Chaipa, I.*, Chari, N.* and Chinwada, P., in: Crop Protection, volume 120, pages 141-150, ISSN 0261-2194, 2019. [DOI] |
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| Unlocking the potential of agribusiness in Africa through youth participation: an impact evaluation of N-Power Agro Empowerment Program in Nigeria, Ogunmodede, A. M., Ogunsanwo, M. O.* and Manyong, V., in: Sustainability, volume 12, number 14: 5737, pages 1-18, ISSN 2071-1050, 2020. [DOI] |
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| Use of modelling tools to assess climate change impacts on smallholder oil seed yields in South Africa, Kephe, P. N., Mkuhlani, S., Rusere, F.* and Chemura, A., in: PLoS ONE, volume 19, number 5: e0301254, pages 1-19, ISSN 1932-6203, 2024. [DOI] |
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| Variations in on-farm plant densities and their impact on yield in low input East African highland banana (Musa spp.) cropping systems: a case study of Rwanda, Ndabamenye, T.*, Van Asten, P., Vanhoudt, N., Blomme, G., Annandale, J.*, Swennen, R.+, Bagabe, M. C.*, Sallah, P. and Barnard, R., Abstract (Poster Presentation) in Book of Abstracts of CIALCA International Conference on "Challenges and Opportunities for Agricultural Intensification of the Humid-Highland Systems of sub-Saharan Africa", Kigali, Rwanda, 24-27 October, 2011. |
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| Varietal adoption, outcomes and impact., Walker, T. S., Alwang, J., Alene, A., Ndjuenga, J., Labarta, R., Yigezu, Y., Diagne, A., Andrade, R., Andriatsitohaina, R. M., De Groote, H., Mausch, K., Yirga, C.*, Simtowe, F., Katungi, E., Jogo, W., Jaleta, M., Pandey, S. and Charyulu, D., pages 388-405, chapter 19, CGIAR and CABI, ISBN 978-1-78064-401-1, 2015. [DOI] |
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| Varietal impact on women's labour, workload and related drudgery in processing root, tuber and banana crops: focus on cassava in sub-Saharan Africa, Bouniol, A., Ceballos, H., Bello, A. A., Teeken, B., Olaosebikan, O., Owoade, D., Agbona, A ., Fotso Kuate, A., Madu, T.*, Okoye, B.*, Ofoeze, M.*, Nwafor, S.*, Onyemauwa, N.*, Adinsi, L.*, Forsythe, L. and Dufour, D., in: Journal of the Science of Food and Agriculture, pages 1-25, ISSN 0022-5142, 2024. [DOI] |
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| Walking the impact pathway: CIALCA's efforts to mobilising agricultural knowledge for the African Great Lakes Region, Van Schagen, B., Blomme, G., Vanlauwe, B., Van Asten, P. and Mutuo, P., pages 243-253, chapter 19, Routledge, ISBN 978-0-415-53273-0, 2013. |
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| Walking the impact pathway: the CIALCA experience in mobilising agricultural knowledge for the African Great Lakes Region, Van Schagen, B., Njukwe, E., Katharina, P. B., Sengele, N.*, Mazibo, F.*, Blomme, G., Vanlauwe, B. and Van Asten, P., Abstract (Oral Presentation) in Book of Abstracts of CIALCA International Conference on "Challenges and Opportunities for Agricultural Intensification of the Humid-Highland Systems of sub-Saharan Africa", Kigali, Rwanda, 24-27 October, 2011. |
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| Welfare impacts of climate-smart agriculture in Ghana: Does row planting and drought-tolerant maize varieties matter?, Martey, E.*, Etwire, P. M.* and Abdoulaye, T., in: Land Use Policy, volume 95, number -: 104622, pages 1-10, ISSN 0264-8377, 2020. [DOI] |
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| Welfare impacts of improved groundnut varieties in eastern Zambia: a heterogeneous treatment effects approach, Manda, J., Khonje, M., Alene, A. and Gondwe, T., in: Agrekon, pages 1-17, ISSN 0303-1853, 2017. [DOI] |
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| Welfare impacts of smallholder farmers' participation in multiple output markets: empirical evidence from Tanzania, Manda, J., Azzarri, C., Feleke, S., Kotu, B. H., Claessens, L . and Bekunda, M., in: PloS ONE, volume 16, number 5: e0250848, pages 1-20, ISSN 1932-6203, 2021. [DOI] |
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| Youth agricultural entrepreneurship: assessing the impact of agricultural training programmes on performance, Adeyanju, D. F., Mburu, J.* and Mignouna, D., in: Sustainability, volume 13, number 4: 1697, pages 1-11, ISSN 2071-1050, 2021. [DOI] |
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| Socioeconomic assessment of adoption of production and processing technologies on farming households in Nigeria, Ayedun, B., Okuneye, P. A.*, Dipeolu, A.* and Abdoulaye, T., in: Journal of Agricultural Management and Rural Development, volume 4, number 1, pages 134-147, 2013. |
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| Keywords: | Adoption; impact; technology; estimates.
|
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| A framework for conceptualizing impact assessment and promoting impact culture in agricultural research, Alene, A., Manyong, V., Gockowski, J., Coulibaly, O. and Abele, S., Impact series, 2006. |
|
| A proposal for the use of the partnership-extension model to facilitate adoption of the International Institute of Tropical Agriculture's plantain and banana (Musa spp.) technologies in Nigeria, Ogunlade, I.* and Coulibaly, O., in: Acta Horticulturae, volume 2, number 879, pages 791-796, ISSN 0567-7572, 2010. |
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| Adoption and impact of dry-season dual-purpose cowpea in the semiarid zone of Nigeria, Inaizumi, H., Singh, B., Sanginga, P., Manyong, V., Adesina, A. and Tarawali, S., Impact series, International Institute of Tropical Agriculture (IITA), ISBN 978 131 171 1, 1999. |
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| An impact assessment of IITA's benchmark area approach, Douthwaite, B., Baker, D., Weise, S., Gockowski, J., Manyong, V. and Keatinge, J., Impact series, 2003. |
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| Ant diversity in the humid forest zone of Cameroon: distribution of the pest ant Anaplolepis tenella Santschi (ABSTRACT), Fotso Kuate, A., Hanna, R., Nagel, P. and Tindo, M.*, Abstract, p. 130 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Banana, cassava and yam: target pests and diseases, Beed, F., Abstract, p. 15 in Program Book of Abstracts, Scientific Review and Planning Workshop: "Modelling climate impacts on pests and diseases", 10-14 December 2012 Lima, Peru, 2012. |
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| Current surveillance strategies for banana, cassava and yam pests and diseases, Beed, F., Abstract, p. 42 in Program Book of Abstracts, Scientific Review and Planning Workshop: "Modelling climate impacts on pests and diseases", 10-14 December 2012 Lima, Peru, 2012. |
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| Demographic analysis of Bactrocera invadens (Diptera: tephritidae) reared at five constant temperatures, Dongmo, M., Hanna, R., Kekeunou, S.*, Kroschel, J. and Tonnang, H., Abstract, p. 146 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Demographic analysis of Fopius arisanus reared at five constant temperatures, Nanga, S. N., Hanna, R., Kekeunou, S.*, Kroschel, J. and Tonnang, H., Abstract, p. 62 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Development and commercialization of the green muscle biopesticide, Douthwaite, B., Langewald, J. and Harris, J., Impact series, International Institute of Tropical Agriculture (IITA), ISBN 978-131-1932, 2001. |
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| Does cassava processing research-for-development have an impact on fabricator, processor and farm level outcomes? Evidence from Nigeria. Proceedings of pre-conference workshop, 28th International Conference of Agricultural Economists., Rusike, J., Abdoulaye, T., Asumugha, G.*, Dixon, A.*, Manyong, V. and Ilona, P., 2012. |
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| Effect des saisons de culture sur la dynamique de la population des ravageurs et de leurs ennemis naturels sur les varietes de chou, Djomaha, E. S., Hanna, R., Ghogomu, R.* and Et Fotso, K. A.*, Abstract, p. 99 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Effects of temperature and relative humidity on immature development and survival of Stictococcus vayssierei Richard, a pest of some tropical root and tuber crops, Doumtsop, A. R. P., Hanna, R. and Tindo, M.*, Abstract, p. 109 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Enhancing the effectiveness of training: follow-up and follow-through: proceedings of a WARDA/NARS training seminar held at WARDA, Bouake, Cote d'Ivoire, 4th-6th May, 1992, Gulley, J. L., in: Human resources development for rice science in West Africa: strengthening West Africa's capability in the science, technology and socio-economics of rice production, Bouake, Cote d'Ivoire, 4th-6th May, 1992, pages 121-131, West Africa Rice Development Association (WARDA), Bouake, Cote d'Ivoire, 1993. |
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| Evaluation of boric acid for the suppression of the ant Anoplolepis tenella and impact on infestations of its tended scale insect Stictococcus vayssierei in cassava fields in Cameroon, Fotso Kuate, A., Hanna, R., Nanga, S. N., Tindo, M.* and Nagel, P., Abstract, p. 104 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Evaluation of East African highland banana land races and hybrids for resistance to banana nematodes in semi-arid Uganda, Wasukira, A., Coyne, D., Dubois, T., Dusabe, J., Pillay, M. and Lorenzen, J., Abstract (oral Presentation), P. 104 in the Program and Book of Abstracts, International Banana 2008 Conference, "Banana and Plantain in Africa: Harnessing International Partnerships to Increase Research Impact"., 2008. |
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| Evaluation of the Dissemination of New Banana (Musa spp.) Technologies in Central Ghana- the Role of Technology Characteristics, Dzomeku, B. M.*, Staver, C., Aflakpui, G.*, Sanogo, D., Garming, H., Ankomah, A.* and Darkey, S.*, in: Acta Horticulturae, volume 2, number 879, pages 735-740, ISSN 0567-7572, 2010. |
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| Ex post impact assessment of agricultural research in sub-Saharan Africa: the IITA experience, Nkamleu, G. B., Coulibaly, O., Sanogo, D., Manyong, V. and Alene, A., pages 27-47, International Institute of Tropical Agriculture (IITA), ISBN 978 131 321 8, 2007. |
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| Factors affecting the adoption of disease-resistant plantain and banana (Musa spp.) hybrids in Nigeria, Aitchedji, C., Tenkouano, A. and Coulibaly, O., in: Acta Horticulturae, volume 2, number 879, pages 741-748, ISSN 0567-7572, 2010. |
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| Fast-track release of black leaf streak resistant banana and plantain (Musa spp.) hybrids and related technologies to farmers in Cameroon: a strategy to enhance food security, Njukwe, E., Amah, D., Ndango, R. and Tenkouano, A., in: Acta Horticulturae, volume 2, number 879, pages 577-584, ISSN 0567-7572, 2010. |
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| Genetically improved dualpurpose cowpea: assessment of adoption and impact in the dry savanna region of West Africa, International Institute of Tropical Agriculture (IITA), 2002. |
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| IITA Annual Report 2015, IITA, , International Institute of Tropical Agriculture (IITA), ISBN ISSN: 0331-4340, 2016. |
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| Impact of climate change on interdependence for microbial genetic resources for agriculture, Beed, F., pages 37-46, chapter 5, FAO, 2009. |
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| Impact of IITA-improved germplasm on maize production in west and central Africa, Manyong, V., Kling, J., Makinde, K., Ajala, S. and Menkir, A., Impact series, 2000. |
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| Initial assessment of the producer costs and benefits of farmer field school training, Gockowski, J., David, S., Okuku, I., Nkeh, J., Wandji, D., Asamoah, C., Agordorku, S. and Adu, M., STCP Impact Brief, No. 03, 2005. |
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| L'ampleur des problemes lies au fletrissement bacterien de la banane (BXW) a l'Est de la RDC (Nord et Sud Kivu et Province Orientale): une evaluation d'experts sur les informations existantes, 2010. |
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| L'ampleur des problemes lies au fletrissement bacterien de la banane (BXW) a l'Est de la RDC (Nord et Sud Kivu et Province Orientale): une evaluation d'experts sur les informations existantes, Beed, F., Fiaboe, K., Ouma, E., Vigheri, N., Tinzaara, W. and Khoury, W., 2010. |
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| Les fourmis envahissante du Cameroun, Tindo, M.*, Fournier, D., Foucaud, J., Mbenoun Masse, P. S.*, Fotso Kuate, A., Hanna, R., Mony, R.*, Fomena, A.* and Kenne, M.*, Abstract, p. 151 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Measuring the effectiveness of crop improvement research in sub-Saharan Africa from the perspectives of varietal output, adoption, and change: 20 crops, 30 Countries, and 1150 cultivars in farmers' fields, Walker, T., Alene, A., Ndjeunga, J., Labarta, R., Yigezu, Y., Diagne, A., Andrade, R., Andriatsitohaina, R. M., De Groote, H., Mausch, K., Yirga, C.*, Simtowe, F., Katungi, E., Jogo, W., Jaleta, M. and Pandey, S. J., 2014. |
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| Meeting the challenge of the plantain (Musa spp.) subsector economic restructuring in cameroon, Tetang, J., Kwa, M.*, Temple, L., Bikoi, A.*, Njukwe, E., Staver, C. and Ottou, J.*, in: Acta Horticulturae, volume 2, number 879, pages 829-836, ISSN 0567-7572, 2010. |
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| Molecular-based diversity of the scale insect Stictococcus vayssierei in the Congo Basin: evidence of the existence of a species complex, Doumtsop, A. R. P., Hanna, R., Fomena, A.*, Normark, B. and Tata-Hangy, W., Abstract, p. 153 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Mucuna fallow diffusion in southern Benin, Manyong, V., Houndekon, V. A.*, Sanginga, P., Vissoh, P. V. and Honlonkou, A. N.*, Impact series, International Institute of Tropical Agriculture (IITA), ISBN 978 131 177 0, 1999. |
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| On-farm participatory evaluation of East African highland banana 'Matooke' hybrids (Musa spp.), Tendo Ssali, R.*, Nowakunda, K., Barekye-Erima, R.*, Batte, M. and Tushemereirwe, W. K.*, in: Acta Horticulturae, volume 2, number 879, pages 585-592, ISSN 0567-7572, 2010. |
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| Outcome and impact assessment at IITA: issues and evidence, Proceedings (Booklet), 2011. |
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| Policy shifts and adoption of alley farming in West and Central Africa, Adesina, A., Coulibaly, O., Manyong, V., Sanginga, N., Mbila, D., Chianu, J. and Kamleu, D. G., Impact series, International Institute of Tropical Agriculture (IITA), ISBN 978 131 170 3, 1999. |
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| Population dynamics of banana aphid, Vector of banana bunchy top virus, on four Musa genotypes with different levels of aphid susceptibility, Ngatat, S., Hanna, R., Kumar, P. L. and Fontem, D. A.*, Abstract, p. 54 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Release, persistence and parasitism of the parasitoid Fopius arisanus on bush mango, Irvingia gabonensis in Benin, West Africa, Gnanvossou, D., Hanna, R., Bokonon-Ganta, A.*, Mohamad, S.* and Ekesi, S., Abstract, p. 49 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Risk assessment and modelling: IITA, Tamo, M., Beed, F., Goergen, G ., Hanna, R., Coyne, D., Van Asten, P. and Legg, J., Abstract, p. 33 in Program Book of Abstracts, Scientific Review and Planning Workshop: "Modelling climate impacts on pests and diseases", 10-14 December 2012 Lima, Peru, 2012. |
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| Roosting hosts and their integration into bait application for the management of fruit flies infesting cucurbits in Benin, West Africa, Azandeme, G., Hanna, R. and Gnanvossou, D., Abstract, p. 38 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Seasonal abundance and species diversity of tephritid fruit in male lure traps in Benin, West Africa, Gnanvossou, D., Hanna, R., Bokonon-Ganta, A.*, Mohamad, S.* and Ekesi, S., Abstract, p. 45 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Selection, training and supervision of field enumerators employed for village-level economic survey, Winch, F. E., in: Village-level socio-economic studies workshop held at IITA, November 14-25, 1977, Ibadan, 1977. |
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| Setting strategic agricultural research priorities based on potential impacts on poverty reduction: the case of Nigeria, Alene, A., Manyong, V., Tollens, E. F. and Abele, S., pages 8-26, International Institute of Tropical Agriculture (IITA), ISBN 978 131 321 8, 2007. |
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| Social impact of soybean in Nigeria's southern Guinea savanna, Sanginga, P., Adesina, A., Manyong, V., Otite, O.* and Dashiell, K., Impact series, International Institute of Tropical Agriculture (IITA), ISBN 978 131 168 1, 1999. |
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| Species composition, seasonality, response to attractants, and fruits infestations of tephritid fruit flies in mango and guava orchards in Cameroon, Hanna, R., Fotso Kuate, A., Nanga, S. N., Ndjab, M. R., Tamedjouong, Z. T., Olina Bassala, J. P.*, Ntchoutnji, I.*, Ekesi, S. and Mohamad, S.*, Abstract, p. 52 in the book of abstracts of the 20th Biennial Conference of the African Association of Insect Scientist, 28-31 October, 2013 Yaounde, Cameroon, 2013. |
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| Stakeholder Engagement Plan (SEP) for Ghana Cluster Activities, IITA, , International Institute of Tropical Agriculture, 2022. |
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| Targeting agricultural research for development in Tanzania: an example of the use of GIS for ex ante impact assessment at IITA, Legg, C., pages 61-74, International Institute of Tropical Agriculture (IITA), ISBN 978 131 321 8, 2007. |
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| The contribution of IITA-improved cassava to food security in sub-Saharan Africa: an impact study, Manyong, V., Dixon, A., Makinde, K., Bokanga, M. and Whyte, J., Impact series, 2000. |
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| The economic impact of investments in cassava research in Uganda, Bua, A.*, Acola, G., Adupa, R., Otim-Nape, G.*, Baguma, Y.*, Sserunkuma, D., Manyong, V. and Coulibaly, O., pages 147-151, chapter 14, CABI, ISBN 978-1845932671, 2007. |
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| The effectiveness of crop improvement programmes from the perspectives of varietal output and adoption: cassava, cowpea, soybean and yam in sub-Saharan Africa and maize in West and Central Africa, Alene, A., Abdoulaye, T., Rusike, J.*, Manyong, V. and Walker, T. S., pages 74-122, chapter 6, CGIAR and CABI, ISBN 978 1 78064 401 1, 2015. |
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| The impact of climate change on interdependence for microbial genetic resources for agriculture, Beed, F., number 48, 2011. |
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| The impact of IITA-led biological control of major pests in sub-Saharan African agriculture: a synthesis of milestones and empirical results, Alene, A., Neuenschwander, P., Manyong, V., Coulibaly, O. and Hanna, R., Impact series, 2005. |
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| The importance of banana (Musa sp) for food and nutrition security, Van Asten, P. and Staver, C., CCAFS Working Paper no. 23, pages 15-22, chapter 2, CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), 2012. |
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| The International Plant Diagnostic Network (IPDN) in Africa: improving capacity for diagnosing diseases of banana (Musa spp.) and other African crops, Miller, S. A., Kinyua, Z. M.*, Beed, F., Harmon, C. L., Xin, J., Vergot, P., Momol, M. T., Gilbertson, R. and Garcia, L., in: Acta Horticulturae, volume 1, number 879, pages 341-348, ISSN 0567-7572, 2010. |
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| The potential benefits of GIS techniques in disease and pest control: an example based on a regional project in Central Africa, Bouwmeester, H., Abele, S., Manyong, V., Legg, C., Mwangi, M., Nakato, V., Coyne, D. and Sonder, K., in: Acta Horticulturae, volume 1, number 879, pages 333-340, ISSN 0567-7572, 2010. |
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| The WASHC ISFM legacy database: milestone report 1.6a: develop ISFM database and ISFM data repository, Huising, J. E., Mesele, S. A.* and Adebayo, F., 2017. |
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| Training in impact assessment of agricultural innovations on food security, poverty reduction, and environmental protection in sub-Saharan Africa, Coulibaly, O., Adeoti, R., Manyong, V. and Sy, A., in: Outcome and impact assessment at IITA: issues and evidence, pages 14-15, 2011. |
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| Varietal adoption, outcomes and impact., Walker, T. S., Alwang, J., Alene, A., Ndjuenga, J., Labarta, R., Yigezu, Y., Diagne, A., Andrade, R., Andriatsitohaina, R. M., De Groote, H., Mausch, K., Yirga, C.*, Simtowe, F., Katungi, E., Jogo, W., Jaleta, M., Pandey, S. and Charyulu, D., pages 388-405, chapter 19, CGIAR and CABI, ISBN 978-1-78064-401-1, 2015. [DOI] |
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| Varietal generation and output, Walker, T. S., Alene, A., Ndjuenga, J., Labarta, R., Yigezu, Y., Diagne, A., Andrade, R., Andriatsitohaina, R. M., De Groote, H., Mausch, K., Yirga, C.*, Simtowe, F., Katungi, E., Jogo, W., Jaleta, M., Pandey, S. and Charyulu, D., pages 370-387, chapter 18, CGIAR and CABI, ISBN 978-1-78064-401-1, 2015. [DOI] |
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| Severity of anthracnose and virus diseases of water yam (dioscorea alata L.) in NIgeria I: effects of yam genotype and date of planting, Egesi, C. N.*, Onyeka, T. and Asiedu, R., in: Crop Protection, volume 26, number 8, pages 1259-1265, ISSN 0261-2194, 2007. |
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Abstract:
Anthracnose and virus diseases exert devastating impacts on yam production in many tropical regions of the world where the crop contributes to food security and income generation. The complexities in their epidemiology necessitate the use of integrated approaches in their management. Six genotypes of Dioscorea alata, planted on six dates (March?August) in each of 1998 and 1999 in Ibadan, Nigeria, were evaluated to determine the effects of planting date and genotype on severity of the two diseases. The date of planting had a profound influence on anthracnose severity, contributing 72% of the observed variation due to combined effects of planting date, genotype and their interactions. In contrast, the genotype effect was most dominant with respect to virus severity, accounting for 85% of the total observed variation. Planting in August supported least anthracnose development while April and May plantings resulted in the least severity of virus diseases. While selection of planting time could be used to manage anthracnose disease, its application could be influenced by the prevailing weather conditions in a particular location. Two of the genotypes (TDa 291 and TDa 297) had low severity values for both diseases across the different planting dates. Availability of such sources of multiple disease resistance and appropriate choice of planting date would be very useful in integrated management of the two major yam diseases.
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| The impact of agricultural research on productivity and poverty in sub-Saharan Africa, Alene, A. and Coulibaly, O., in: Food Policy, volume 34, number 2, pages 198-209, ISSN 0306-9192, 2009. |
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Abstract:
While it is widely recognized that agricultural research is a key driver of broad-based technological change in agriculture that benefits the poor in many different ways, little is known about its aggregate impacts on productivity growth and poverty reduction in sub-Saharan Africa (SSA). Using a polynomial distributed lag structure for agricultural research within a simultaneous system of equations framework,this paper first demonstrates that agricultural research contributes significantly to productivity growth in SSA. Productivity growth is again shown to raise per capita incomes, with income increases finally having significant poverty-reducing effects. With an aggregate rate of return of 55%, the payoffs to agricultural research are also impressive. Agricultural research currently reduces the number of poor by 2.3 million or 0.8% annually. While the actual impacts are not large enough to more than offset the poverty-increasing effects of population growth and environmental degradation, the potential impacts of agricultural research are far greater. Apart from low research investments, SSA faces several constraints outside the research system that hinder realization of potential research benefits. The results show that doubling research investments in SSA would reduce poverty by 9% annually. However, this would not be realized without more efficient extension, credit, and input supply systems.
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