Kamara, A.    

Firstname:A. 
Surname:Kamara 
Email:a.kamara@cgiar.org 
Institute:IITA 
Homepage:http://www.iita.org 
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246 publications (0 read)

10 Keywords relate to this author

Cowpea
Cowpea varieties
Cropping system
Dry savannas
Farmer participatory evaluation
PREA
Plant pathology
Seed systems
Socioeconomic studies
Sub-Saharan Africa




Publications as Author



2025

Gender disparities in the adoption of improved management practices for soybean cultivation in North East Nigeria, Kamara, A. Y.*, Kamsang, L.*, Mustapha, A.*, Kamara, A., Kolapo, A.* and Kamai, N.*, in: Journal of Agriculture and Food Research, volume 22, number -: 102032, pages 1-12, ISSN 2666-1543, 2025. [DOI]
 
Modelling the potential impact of climate change on the productivity of soybean in the Nigeria Savannas, Bebeley, J. F., Tofa, A., Kamara, A., Jibrin, J. M., Solomon, R., Adeleke, M. A., Omoigui, L., Eseigbe, O. B., Peter-Jerome, H. and Ademulegun, T., in: PLoS ONE, volume 20, number 3: e0313786, pages 1-22, ISSN 1932-6203, 2025. [DOI]
 
Evaluation and application of the CROPGRO - Cowpea model for simulating appropriate sowing window and planting density of cowpea varieties across contrasting environments, Kamara, A., Solomon, R., Tofa, A., Garba, I. I.*, Eseigbe, O. B., Jibrin, J. M.*, Omoigui, L., Aliyu, K. T., Bebeley, J. F. and Peter-Jerome, H., in: Field Crops Research, volume 331, pages 1-14, ISSN 0378-4290, 2025. [DOI]
 

2024

Matching cereal and legume crop varieties to production environments in Northeast Nigeria using Decision Support Tools (DST), Ajeigbe, H. A.+, Kamara, A., Akinseye, F. M., Silwal, P. K., Faleti, O., Tofa, A., Kamai, N., Bebeley, J. F. and Solomon, R., International Institute of Tropical Agriculture (IITA), ISBN 978-978-131-425-4, 2024.
 
Assessing the effects of plant density and nitrogen on millet yield in Southern Niger using the CERES-millet model, Garba, M., Kamara, A., Mohamed, F. S., Tofa, A., Mahamane, S.*, Salissou, H., Kapran, B. I., Abdoulaye, T. and Garba, I. I., in: CABI Agriculture and Bioscience, volume 5, number -: 50, pages 1-16, ISSN 2662-4044, 2024. [DOI]
 
Effect of combined use of supplementary irrigation, manure and P fertilization on grain yield and profitability of soybean in northern Nigeria, Bebeley, J. F., Kamara, A., Jibrin, J. M.*, Tofa, A., Solomon, R. and Kamai, N., in: Heliyon, volume 10, number 7: e28749, pages 1-11, ISSN 2405-8440, 2024. [DOI]
 
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]
 
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]
 
Combined use of improved maize hybrids and nitrogen application increases grain yield of maize, under natural Striga hermonthica infestation, Solomon, R., Kamara, A., Aliyu, K. T., Ademulegun, T., Mohammed, I. B.*, Tofa, A., Omoigui, L. and Adeleke, M. A., in: Open Agriculture, volume 9, number -: 20220338, pages 1-11, ISSN 2391-9531, 2024. [DOI]
 

2023

Designing gender- and youth-responsive agronomic solutions. Study report: Sasakawa Africa Association Nigeria use case, Lambrecht, I., Ma, N., Ragasa, C., Cole, S. M., Kreye, C., Peter, H., Yergo, W., Arouna, A., Tijjani, K., Shehu, B. M., Ibrahim, A., Kazuki, S., Kamara, A., Aliyu, M. K., Taru, A. and Sasakawa Africa Association, , 2023.
 
Modelling the impacts of diverse cover crops on soil water and nitrogen and cash crop yields in a sub-tropical dryland, Garba, I. I., Bell, L. W., Chapman, S. C., deVoil, P., Kamara, A. and Williams, A., in: Field Crops Research, volume 301, number -: 109019, pages 1-14, ISSN 0378-4290, 2023. [DOI]
 
Tool for optimum planting window selection NG-Akilimo-SAA: manual for executing and managing the decision support tool for variety selection and planting window recommendation, Bendito, E., Peter, H., Tofa, A., Tijjani, K., Kamara, A. and Kreye, C., International Institute of Tropical Agriculture, 2023.
 
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]
 
Compositional nutrient diagnosis (CND) and associated yield predictions in maize: a case study in the northern Guinea savanna of Nigeria, Shehu, B. M.*, Garba, I. I.*, Jibrin, J. M.*, Kamara, A., Adam, A. M.*, Craufurd, P., Aliyu, K. T., Rurinda, J.* and Merckx, R ., in: Soil Science Society of America Journal, volume 87, number 1, pages 63-81, ISSN 0361-5995, 2023. [DOI]
 
Managing fall armyworm (Spodoptera frugiperda J.E. Smith) using leaf residue of neem (Azadirachta indica A. Juss) on maize (Zea mays L.) under natural infestation, Ewansiha, S. U.*, Enogieru, L. H.*, Aigbe, U. D.* and Kamara, A., in: Biological Agriculture & Horticulture, pages 1-11, ISSN 0144-8765, 2023. [DOI]
 
Spatial modelling indicates Striga seedbank density dependence on rainfall and soil traits in the savannas of northern Nigeria, Aliyu, K. T., Lado, A.*, Hussaini, M. A.*, Kamara, A., Musa, S. A.*, Dawaki, M. U.*, Suleiman, M. S.*, Bello, T. T.*, Fagge, A.*, Isa, H. M.* and Ibrahim, H.*, in: Weed Research, pages 1-14, ISSN 0043-1737, 2023. [DOI]
 
Establishing optimal planting windows for contrasting sorghum cultivars across diverse agro-ecologies of north-eastern Nigeria: a modelling approach, Akinseye, F. M., Ajeigbe, H. A.+, Kamara, A., Omotayo, A. O., Tofa, A. and Whitbread, A. M., in: Agronomy, volume 13, number 3: 727, pages 1-24, ISSN 2073-4395, 2023. [DOI]
 
Sources of genetic resistance to Fusarium wilt (Fusarium oxysporum f. sp tracheiphilum) in cowpea (Vigna unguiculata (L.) Walp.) and comparison of inoculum concentration levels, Omoigui, L., Danmaigona, C. C.*, Kamara, A., Alakonya, A.+, Ademulegun, T. and Zarafi, A. B.*, in: Archives of Phytopathology and Plant Protection, volume 56, number 17, pages 1372-1389, ISSN 0323-5408, 2023. [DOI]
 
Evaluating the use of nitrogen and phosphorous fertilization as crop management options for maize adaptation to climate change in the Nigeria savannas, Tofa, A., Kamara, A., Babaji, B. A.*, Adnan, A. A.*, Ademulegun, T. and Bebeley, J. F., in: Environmental Research Communications, volume 5, number 5: 055001, pages 1-17, ISSN 2515-7620, 2023. [DOI]
 
Breeding cowpea for adaptation to intercropping for sustainable intensification in the Guinea Savannas of Nigeria, Omoigui, L., Kamara, A., Shaibu, A. S.*, Aliyu, K. T., Tofa, A., Solomon, R. and Olasan, O. J.*, in: Agronomy, volume 13, number 6: 1451, pages 1-12, ISSN 2073-4395, 2023. [DOI]
 
Implication of blanket NPK application on nutrient balance of maize based on soil and tissue diagnosis approaches in the savannas of northern Nigeria, Aliyu, K. T., Kamara, A., Huising, J. E., Adam, A. M.*, Shehu, B. M.* and Jibrin, J. M.*, in: Environmental Research Communications, volume 5, number 6: 065007, pages 1-15, ISSN 2515-7620, 2023. [DOI]
 
Registration of 'UAM14-122-17-7 and UAM14-123-18-3' cowpea cultivars with high-yield, resistance to Striga, and large seed size with brown colour, Omoigui, L., Kamara, A., Shaibu, A. S.*, Iyorkaa, N.*, Ugbaa, M. S.*, Olufajo, O.*, Iolarmen, T.* and Timko, M. P., in: Genetic Resources and Crop Evolution, pages 1-15, ISSN 0925-9864, 2023. [DOI]
 
Farmer's guide to growing cowpea: flyer, Omoigui, L., Kamara, A., Aliyu, K. T. and Solomon, R., 2023.
 
Farmer's guide to growing soybeans: flyer, Omoigui, L., Kamara, A., Aliyu, K. T. and Solomon, R., 2023.
 
Strengthening cowpea seed systems to increase the productivity of smallholder farmers in west Africa, Omoigui, L., Kamara, A., Teryima, I.*, Muhammed, I.* and Ojiewo, C. O ., Dryland Legumes and Cereals, 2023.
 
Growing rice in Northern Nigeria: a farmers guide; flyer, Kamara, A., Omoigui, L., Aliyu, K. T., Tofa, A., Solomon, R., Kmata, A. H. and Atser, G ., 2023.
 
Growing maize in Northwestern Nigeria: a farmers guide; flyer, Kamara, A., Omoigui, L., Aliyu, K. T., Tofa, A., Solomon, R., Kmata, A. H. and Atser, G ., 2023.
 
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]
 
Simulating potential yield of rainfed soybean in northeast Nigeria, Kamara, A., Bebeley, J. F., Aliyu, K. T., Tofa, A., Omoigui, L., Solomon, R. and Akinseye, F. M., in: European Journal of Agronomy, volume 142, number -: 126683, pages 1-16, ISSN 1161-0301, 2023. [DOI]
 

2022

Assessment of the genetic structure and diversity of soybean (Glycine max L.) germplasm using diversity array technology and single nucleotide polymorphism markers, Shaibu, A. S.*, Ibrahim, H.*, Miko, Z. L.*, Mohammed, I. B.*, Mohammed, S. G.*, Yusuf, H. L*, Kamara, A., Omoigui, L. and Karikari, B.*, in: Plants, volume 11, number 1: 68, pages 1-13, ISSN 2223-7747, 2022. [DOI]
 
Optimum stand density of tropical maize varieties: an on-farm evaluation of grain yield responses in the Nigerian Savanna, Adnan, A. A.*, Jibrin, J. M.*, Kamara, A., Craufurd, P., Shaibu, A. S.* and Garba, I. I.*, in: Frontiers in Agronomy, volume 4, number -: 773012, pages 1-12, ISSN 2673-3218, 2022. [DOI]
 
Assessing the spatial variability of soil properties to delineate nutrient management zones in smallholder maize-based system of Nigeria, Peter-Jerome, H., Adewopo, J., Kamara, A., Aliyu, K. T. and Dawaki, M. U.*, in: Applied and Environmental Soil Science, volume 2022, number -: 5111635, pages 1-14, ISSN 1687-7667, 2022. [DOI]
 
Growing soybean in Kano state, northwestern Nigeria, Omoigui, L., Kamara, A., Aliyu, K. T., Solomon, R., Tofa, A. and Raba, A.*, Booklet, 2022.
 
Growing cowpea in Kano state, northwestern Nigeria, Omoigui, L., Kamara, A., Aliyu, K. T., Solomon, R., Tofa, A. and Raba, A.*, Booklet, 2022.
 
Evaluation and application of the CROPGRO-soybean model for determining optimum sowing windows of soybean in the Nigeria savannas, Bebeley, J. F., Kamara, A., Jibrin, J. M.*, Akinseye, F. M., Tofa, A., Adam, A. M.*, Kamai, N. and Solomon, R., in: Scientific Reports, volume 12, number -: 6747, pages 1-15, ISSN 2045-2322, 2022. [DOI]
 
Maize yield as affected by the interaction of fertilizer nitrogen and phosphorus in the Guinea savanna of Nigeria, Tofa, A., Kamara, A., Babaji, B. A.*, Aliyu, K. T., Ademulegun, T. and Bebeley, J. F., in: Heliyon, volume 8, number 11: e11587, pages 1-9, ISSN 2405-8440, 2022. [DOI]
 
Maize nutrient yield response and requirement in the maize belt of Nigeria, Aliyu, K. T., Kamara, A., Huising, J. E., Jibrin, J. M.*, Shehu, B. M.*, Rurinda, J.*, Adam, A. M.*, Mohammed, I. B.* and Vanlauwe, B., in: Environmental Research Letters, volume 17, number 6: 064025, pages 1-17, ISSN 1748-9326, 2022. [DOI]
 
Growing maize in Kano state, northwestern Nigeria, Kamara, A., Omoigui, L., Aliyu, K. T., Tofa, A., Miko, S.*, Solomon, R., Kmata, A. H. and Raba, A.*, Booklet, 2022.
 
Growing rice in Kano State, northwestern, Nigeria, Kamara, A., Omoigui, L., Aliyu, K. T., Tofa, A., Miko, S.*, Solomon, R., Kmata, A. H. and Raba, A.*, Booklet, 2022.
 

2021

Integrated soil fertility management: maximizing the fertilizer use efficiency towards sustainable intensification of smallholder agriculture in sub-Saharan Africa, Vanlauwe, B., Ampadu-Boakye, T., Chernet, M., Coyne, D., Nziguheba, G., Pypers, P ., Asare, R., Baijukya, F., Bekunda, M., Hauser, S., Huising, J. E., Kamara, A., Kreye, C., Kintche, K., Nabahungu, N. L., Manners, R., Masso, C., Mutuo, P. and Taulya, G., pages 130, Agropolis International, ISBN ISSN: 1628-4259, 2021. [DOI]
 
Optimizing sowing density-based management decisions with different nitrogen rates on smallholder maize farms in northern Nigeria, Adnan, A. A.*, Diels, J., Jibrin, J. M.*, Kamara, A., Shaibu, A. S.*, Garba, I. I.*, Craufurd, P. and Maertens, M., in: Experimental Agriculture, volume 56, number 6, pages 866-883, ISSN 0011-4797, 2021. [DOI]
 
Physical purity of cowpea seeds from trained community based and licensed seed producers in three states of Nigeria, Iyorkaa, N.*, Omoigui, L., Odo, P. E.*, Kamara, A., Ugbaa, M. S.* and Ekeuro, G. C.*, in: Bioscience and Bioengineering, volume 6, number 2, pages 10-19, ISSN 2381-7690, 2021.
 
Understanding nutrient imbalances in maize (Zea mays L.) using the diagnosis and recommendation integrated system, Aliyu, K. T., Huising, J. E., Kamara, A., Jibrin, J. M.*, Mohammed, I. B.*, Nziguheba, G., Adam, A. M. and Vanlauwe, B., in: Scientific Reports, volume 11, number -: 16018, pages 1-13, ISSN 2045-2322, 2021. [DOI]
 
Simulating the response of drought-tolerant maize varieties to nitrogen application in contrasting environments in the Nigeria Savannas using the APSIM Model, Beah, A., Kamara, A., Jibrin, J. M.*, Akinseye, F. M., Tofa, A. and Adam, A. M.*, in: Agronomy, volume 11, number 1: 76, pages 1-22, ISSN 2073-4395, 2021. [DOI]
 
Simulation of the optimum planting windows for early and intermediate-maturing maize varieties in the Nigerian Savannas using the APSIM model, Beah, A., Kamara, A., Jibrin, J. M.*, Akinseye, F. M., Tofa, A. and Ademulegun, T., in: Frontiers in Sustainable Food Systems, volume 5, number -: 624886, pages 1-18, ISSN 2571-581X, 2021. [DOI]
 
Assessing the use of a drought-tolerant variety as adaptation strategy for maize production under climate change in the savannas of Nigeria, Tofa, A., Kamara, A., Babaji, B. A.*, Akinseye, F. M. and Bebeley, J. F., in: Scientific Reports, volume 11, number : 8983, pages 1-16, ISSN 2045-2322, 2021. [DOI]
 
Studies on the background of cowpea seeds from trained community based and licensed seed producers in three states of Nigeria, Iyorkaa, N.*, Kamara, A., Omoigui, L., Odo, P. E.*, Teryima, I.* and Ekeuro, G. C.*, in: International Journal of Plant Science and Ecology, volume 7, number 3, pages 61-68, ISSN 2381-6996, 2021.
 

2020

Science-based decision support for formulating crop fertilizer recommendations in sub-Saharan Africa, Rurinda, J., Zingore, S., Jibrin, J. M.*, Balemi, T.*, Masuki, K., Andersson, J. A., Pampolino, M. F., Mohammed, I. B., Mutegi, J.*, Kamara, A., Vanlauwe, B. and Craufurd, P., in: Agricultural Systems, volume 180, number -: 102790, pages 1-13, ISSN 0308-521X, 2020. [DOI]
 
Direct estimation of maize leaf area index as influenced by organic and inorganic fertilizer rates in Guinea Savanna, Berdjour, A., Dugje, I.*, Rahman, N. A., Odoom, D. A.*, Kamara, A. and Ajala, S., in: Journal of Agricultural Science, volume 12, number 6, pages 66-75, ISSN 1916-9752, 2020. [DOI]
 
Effect of cowpea cultivar, planting date and application of insecticide in the management of cowpea insect pests in south eastern Sierra Leone, Mansaray, A.*, Mark, Y. K.*, Moseray, M. T.*, Kamara, A. and Conteh, A.*, in: Journal of Entomology and Nematology, volume 12, number 2: CDD409F64045, pages 39-45, ISSN 2006-9855, 2020. [DOI]
 
Can a combination of UAV-derived vegetation indices with biophysical variables improve yield variability assessment in smallholder farms?, Adewopo, J., Peter, H., Mohammed, I. B.*, Kamara, A., Craufurd, P. and Vanlauwe, B., in: Agronomy, volume 10, number 12: 1934, pages 1-21, ISSN 2073-4395, 2020. [DOI]
 
CERES-Maize model for simulating genotype-by-environment interaction of maize and its stability in the dry and wet savannas of Nigeria, Adnan, A. A.*, Diels, J ., Jibrin, J. M.*, Kamara, A., Shaibu, A. S.*, Craufurd, P. and Menkir, A., in: Field Crops Research, volume 253, number -: 107826, pages 1-11, ISSN 0378-4290, 2020. [DOI]
 
Modeling planting-date effects on intermediate-maturing maize in contrasting environments in the Nigerian savanna: an application of DSSAT model, Tofa, A., Chiezey, U. F.*, Babaji, B. A.*, Kamara, A., Adnan, A. A.*, Beah, A.* and Adam, A. M.*, in: Agronomy, volume 10, number -: 871, pages 1-19, ISSN 2073-4395, 2020. [DOI]
 
Guide to rice production in northern Nigeria, Kamai, N., Omoigui, L., Kamara, A. and Ekeleme, F., Revised edition, 2020.
 
Understanding the response of sorghum cultivars to nitrogen applications in the semi-arid Nigeria using the agricultural production systems simulator, Akinseye, F. M., Ajeigbe, H. A.+, Kamara, A., Adefisan, E. A.* and Whitbread, A., in: Journal of Plant Nutrition, pages 1-17, ISSN 0190-4167, 2020. [DOI]
 
Productivity, water- and nitrogen-use efficiency, and profitability of pearl millet (Pennisetum glaucum) under different nitrogen applications in semiarid region of Nigeria, Ajeigbe, H. A.+, Akinseye, F. M., Kamara, A., Tukur, A. and Inuwa, A. H., in: International Journal of Agronomy, volume 2020, number -: 1802460, pages 1-12, ISSN 1687-8159, 2020. [DOI]
 
Guide to cowpea production in northern Nigeria, Omoigui, L., Kamara, A., Kamai, N., Ekeleme, F. and Aliyu, K. T., International Institute of Tropical Agriculture, ISBN 978-978-131-368-4, 2020.
 
Guide to soybean production in northern Nigeria, Omoigui, L., Kamara, A., Kamai, N., Dugje, I.*, Ekeleme, F., Kumar, P. L., Ademulegun, T. and Solomon, R., Revised edition, 2020.
 
Delineation of soil fertility management zones for site-specific nutrient management in the maize belt region of Nigeria, Aliyu, K. T., Kamara, A., Jibrin, J. M.*, Huising, J. E., Shehu, B. M.*, Adewopo, J., Mohammed, I. B.*, Solomon, R., Adam, A. M.* and Samndi, A.*, in: Sustainability, volume 12, number -: 9010, pages 1-18, ISSN 2071-1050, 2020. [DOI]
 
Guide to maize production in northern Nigeria, Kamara, A., Kamai, N., Omoigui, L., Togola, A., Ekeleme, F. and Onyibe, J. E., Revised edition, 2020.
 
Maize hybrids response to high plant density in the Guinea savannah of Nigeria, Kamara, A., Menkir, A., Abubakar, A. W., Tofa, A., Ademulegun, T., Omoigui, L. and Kamai, N., in: Journal of Crop Improvement, pages 1-20, ISSN 1542-7528, 2020. [DOI]
 
Mitigating Striga hermonthica parasitism and damage in maize using soybean rotation, nitrogen application, and Striga-resistant varieties in the Nigerian savannas, Kamara, A., Menkir, A., Chikoye, D., Tofa, A., Fagge, A.*, Dahiru, R.*, Solomon, R., Ademulegun, T., Omoigui, L., Aliyu, K. T. and Kamai, N., in: Experimental Agriculture, volume 56, number 4, pages 620-632, ISSN 0014-4797, 2020. [DOI]
 
Seed dressing maize with imazapyr to control Striga hermonthica in farmers' fields in the savannas of Nigeria, Kamara, A., Menkir, A., Chikoye, D., Solomon, R., Tofa, A. and Omoigui, L., in: Agriculture, volume 10, number -: 83, pages 1-9, ISSN 2077-0472, 2020. [DOI]
 

2019

Market-led options to scale up legume seeds in developing countries: experiences from the Tropical Legumes Project, Rubyogo, J. C., Akpo, E., Omoigui, L., Pooran, G., Chaturvedi, S.*, Fikre, A., Haile, D., Ajeigbe, H. A.+, Monyo, E., Nkalubo, S.*, Fenta, B.*, Binagwa, P.*, Kilango, M.*, Williams, M.*, Mponda, O.*, Okello, D.*, Chichaybelu, M.*, Miningou, A.*, Bationo, J.*, Sako, D.*, Kouyate, Z.*, Diallo, S.*, Oteng-Frimpong, R.*, Yirzagla, J.*, Iorlamen, T .*, Garba, U.*, Mohammed, H.*, Ojiewo, C. O., Kamara, A., Varshney, R. K., Nigam, S., Janila, P., Nadaf, H. L.* and Kalemera, S., in: Plant Breeding, pages 1-13, ISSN 0179-9541, 2019. [DOI]
 
Public sector soybean (Glycine max) breeding: advances in cultivar development in the African tropics, Chigeza, G., Boahen, S., Gedil, M., Agoyi, E. E.*, Mushoriwa, H.*, Denwar, N. N.*, Gondwe, T., Tesfaye, A.*, Kamara, A., Alamu, E. O. and Chikoye, D., in: Plant Breeding, pages 1-10, ISSN 0179-9541, 2019. [DOI]
 
Farmers' preferences for high-input agriculture supported by site-specific extension services: evidence from a choice experiment in Nigeria, Oyinbo, O., Chamberlin, J., Vanlauwe, B., Vranken, L., Kamara, A., Craufurd, P. and Maertens, M., in: Agricultural Systems, volume 173, pages 12-26, ISSN 0308-521X, 2019. [DOI]
 
Weeds affecting field crops and water bodies in Africa, Chikoye, D., Ekeleme, F., Hauser, S., Menkir, A., Kamara, A., Neuenschwander, P., Ajuonu, O. and Ajeigbe, H. A.+, Burleigh Dodds series in Agricultural Science, pages 365-396, chapter 14, Burleigh Dodds Science Publishing Limited, ISBN 978-1-78-676232-0, 2019. [DOI]
 
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]
 
Balanced nutrient requirements for maize in the northern Nigerian Savanna: parameterization and validation of QUEFTS model, 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. and Merckx, R ., in: Field Crops Research, volume 241, pages 1-12, ISSN 0378-4290, 2019. [DOI]
 
Sustaining the beneficial effects of maize production in Nigeria: does adoption of short season maize varieties matter?, Oyinbo, O.*, Mbavai, J. J.*, Shitu, M. B.*, Kamara, A., Abdoulaye, T. and Ugbabe, O. O.*, in: Experimental Agriculture, pages 1-13, ISSN 0014-4797, 2019. [DOI]
 
Options for calibrating ceres-maize genotype specific parameters under data-scarce environments, Adnan, A. A.*, Diels, J., Jibrin, J. M.*, Kamara, A., Craufurd, P., Shaibu, A. S.*, Mohammed, I. B. and Tonnang, H. E. Z., in: PLoS ONE, volume 14, number 2: e0200118, pages 1-20, ISSN 1932-6203, 2019. [DOI]
 
Physiological evaluations of maize hybrids under low nitrogen, Abubakar, A. W.*, Manga, A. A.*, Kamara, A. and Tofa, A., in: Advances in Agriculture, volume 2019, pages 1-6, ISSN 2356-654X, 2019. [DOI]
 
Inheritance of resistance to Cercospora leaf spot disease of cowpea [Vigna unguiculata (L.) Walp], Omoigui, L., Arrey, M. O.*, Kamara, A., Danmaigona, C. C.*, Ekeruo, G.* and Timko, M. P., in: Euphytica, volume 215, number -:101, pages 1-12, ISSN 0014-2336, 2019. [DOI]
 
Ex-ante evaluation of promising soybean innovations for sub-Saharan Africa, Gbegbelegbe, S., Alene, A., Kamara, A., Wiebe, K., Manyong, V., Abdoulaye, T. and Mkandawire, P., in: Food and Energy Security, pages 1-16, ISSN 2048-3694, 2019. [DOI]
 
Using a participatory approach and legume integration to increase the productivity of early maturing maize in the Nigerian Sudan Savannas, Kamara, A., Ajeigbe, H. A.+, Ndaghu, N.*, Kamsang, L.*, Ademulegun, T. and Solomon, R., in: International Journal of Agronomy, number -: 5154943, pages 1-8, ISSN 1687-8159, 2019. [DOI]
 
Yield, N uptake and N utilization of early maturing, drought and striga-tolerant maize varieties under low N conditions, Kamara, A., Ewansiha, S. U.* and Tofa, A., in: Communications in Soil Science and Plant Analysis, pages 1-15, ISSN 0010-3624, 2019. [DOI]
 

2018

Handbook on value addition on grain legume processing of soybean, cowpea, and groundnut for smallholder farmers in Borno State, Pindar, H., Kamai, N., Kanampiu, F. and Kamara, A., International Institute of Tropical Agriculture, 2018.
 
Quantifying variability in maize yield response to nutrient applications in the northern Nigeria Savanna, Shehu, B. M., Merckx, R., Jibrin, J. M.*, Kamara, A. and Rurinda, J., in: Agronomy, volume 8, number -:18, pages 1-23, ISSN 2073-4395, 2018. [DOI]
 
Effectiveness of imazaquin seed treatment on Striga gesnerioides control and growth traits of seven cowpea genotypes, Lado, A.*, Hussaini, M. A.* and Kamara, A., in: Journal of Plant Pathology, pages 1-8, ISSN 1125-4653, 2018. [DOI]
 
Genetic analysis of Fusarium wilt resistance in cowpea (Vigna unguiculata Walp.), Omoigui, L., Danmaigona, C. C.*, Kamara, A., Ekefan, E. J.* and Timko, M. P., in: Plant Breeding, pages 1-9, ISSN 0179-9541, 2018. [DOI]
 
Guide to cowpea production in west Africa, Omoigui, L., Kamara, A., Batieno, B. J.*, Iorlamen, T .*, Kouyate, Z.*, Yirzagla, J.*, Diallo, S.* and Garba, U.*, Tropical Legume III (TLIII), International Institute of Tropical Agriculture, ISBN 978-978-131-357-8, 2018.
 
Guide sur la production du niebe en Afrique de l'Ouest, Omoigui, L., Kamara, A., Batieno, B. J.*, Iorlamen, T .*, Kouyate, Z.*, Yirzagla, J.*, Garba, U.* and Diallo, S.*, Legumineuse Tropicale III (TLIII), International Institute of Tropical Agriculture, ISBN 978-978-131-358-5, 2018.
 
The adoption of soybean in northern Nigeria: the case of Kaduna state, Kamara, A., Kamai, N., Kanampiu, F., Reuben, A.*, Jajua, M. and Kadafur, I. M., 2018.
 

2017

Looking back and moving forward: 50 years of soil and soil fertility management research in sub-Saharan Africa, Vanlauwe, B., Abdelgadir, A. H., Adewopo, J., Adjei-Nsiah, S., Ampadu-Boakye, T., Asare, R., Baijukya, F., Baars, E., Bekunda, M., Coyne, D., Dianda, M., Dontsop-Nguezet, P., Ebanyat, P., Hauser, S., Huising, J. E., Jalloh, A., Jassogne, L., Kamai, N., Kamara, A., Kanampiu, F., Kehbila, A. G., Kintche, K., Kreye, C., Larbi, A., Masso, C., Matungulu, K. P., Mohammed, I. B., Nabahungu, N. L., Nielsen, F., Nziguheba, G., Pypers, P ., Roobroeck, D., Schut, M., Taulya, G., Thuita, M., Uzokwe, V. N. E., Van Asten, P., Wairegi, L., Yemefack, M. and Mutsaers, H. J. W., in: International Journal of Agricultural Sustainability, pages 613-631, ISSN 1473-5903, 2017. [DOI]
 
Using CERES-maize and ENSO as decision support tools to evaluate climate-sensitive farm management practices for maize production in the northern regions of Ghana, MacCarthy, D. S.*, Adiku, S. G. K.*, Freduah, B. S.*, Gbefo, F.* and Kamara, A., in: Frontiers in Plant Science, volume 8, number 31, pages 1-13, ISSN 1664-462X, 2017. [DOI]
 
Evaluating maize yield variability and gaps in two agroecologies in northern Ghana using a crop simulation model, MacCarthy, D. S.*, Adiku, S. G. K.*, Freduah, B. S.*, Kamara, A., Narh, S.* and Abdulai, A. L.*, in: South African Journal of Plant and Soil, pages 1-11, ISSN 0257-1862, 2017. [DOI]
 
New sources of aphids [Aphis craccivora (Koch)] resistance in cowpea germplasm using phenotypic and molecular marker approaches, Omoigui, L., Ekeuro, G. C.*, Kamara, A., Bello, L.*, Timko, M. P. and Ogunwolu, G. O.*, in: Euphytica, volume 213, number 8, pages 1-15, ISSN 0014-2336, 2017. [DOI]
 
Profitability and technical efficiency of soybean production in northern Nigeria, Ugbabe, O. O.*, Abdoulaye, T., Kamara, A., Mbaval, J. and Oyinbo, O.*, in: Tropicultura, volume 35, number 3, pages 203-214, ISSN 0771-3312, 2017.
 
Using CERES-maize model to determine the nitrogen fertilization requirements of early maturing maize in the Sudan Savanna of Nigeria, Adnan, A. A.*, Jibrin, J. M.*, Kamara, A., Abdulrahman, B. L.* and Shaibu, A. S.*, in: Journal of Plant Nutrition, volume 40, number 7, pages 1066-1082, ISSN 0190-4167, 2017. [DOI]
 
CERES-maize model for determining the optimum planting dates of early maturing maize varieties in northern Nigeria, Adnan, A. A.*, Jibrin, J. M.*, Kamara, A., Abdulrahman, B. L.*, Shaibu, A. S.* and Garba, I. I.*, in: Frontiers in Plant Science, volume 8, number 1118, pages 1-14, ISSN 1664-462X, 2017. [DOI]
 
Performance of cowpea varieties under Striga gesnerioides (Willd.) Vatke infestation using biplot analysis, Omoigui, L., Kamara, A., Ajeigbe, H. A.+, Akinwale, R.*, Timko, M. P. and Oyekunle, M.*, in: Euphytica, volume 213, number 244, pages 1-16, ISSN 0014-2336, 2017. [DOI]
 
Breeding cowpea for resistance to Striga gesnerioides in the Nigerian dry savannas using marker-assisted selection, Omoigui, L., Kamara, A., Moukoumbi, Y. D., Ogunkanmi, L. A.* and Timko, M. P., in: Plant Breeding, volume 136, number 3, pages 393-399, ISSN 0179-9541, 2017. [DOI]
 
Agronomic evaluation of cowpea cultivars developed for the west African Savannas, Kamara, A., Ewansiha, S. U.*, Ajeigbe, H. A.+, Omoigui, L., Tofa, A. and Karim, K. Y.*, in: Legume Research, volume 40, number 4, pages 669-676, ISSN 0250-5371, 2017. [DOI]
 
Maize-soybean intercropping for sustainable intensification of cereal-legume cropping systems in northern Nigeria, Kamara, A., Tofa, A., Ademulegun, T., Solomon, R., Shehu, H.*, Kamai, N. and Omoigui, L., in: Experimental Agriculture, pages 1-15, ISSN 0014-4797, 2017. [DOI]
 

2016

Understanding market participation choices and decisions of maize and cowpea farmers in northern Nigeria, Mignouna, D., Abdoulaye, T., Akinola, A., Kamara, A. and Oluoch, M., in: Tropicultura, volume 34, number 1, pages 26-39, ISSN 0771-3312, 2016.
 
Identification of new sources of resistance to Striga gesnerioides in cowpea Vigna unguiculata accessions, Omoigui, L.*, Kamara, A., Alunyo, G. I.*, Bello, L.*, Oluoch, M., Timko, M. P. and Boukar, O., in: Genetic Resources and Crop Evolution, pages 1-11, ISSN 0925-9864, 2016. [DOI]
 
Response of groundnut to plant density and phosphorous application in the Sudan Savanna zone of Nigeria, Ajeigbe, H. A.+, Kamara, A., Kunihya, A., Inuwa, A. H. and Adinoyi, A., in: International Journal of Biosciences, volume 9, number 1, pages 291-302, ISSN 2220-6655, 2016. [DOI]
 
Effects of plant density on the performance of cowpea in Nigerian Savannas, Kamara, A., Tofa, A., Boahen, S., Solomon, R., Ajeigbe, H. A.+ and Kamai, N., in: Experimental Agriculture, pages 1-13, ISSN 0014-4797, 2016. [DOI]
 

2015

Consistency of performance of early-maturing maize cultivars in Striga infested and Striga-free environments, Badu-Apraku, B., Yallou, C.*, Oyekunle, M., Akinwale, R.*, Aweke, G. and Kamara, A., in: Canadian Journal of Plant Science, pages 1-35, ISSN 0008-4220, 2015.
 
Using CERES-maize model to determine nitrogen fertilisation requirements of early maize in Nigerian Sudan Savannah, Adnan, A. A.*, Jibrin, J. M.*, Kamara, A., Abdulrahman, B. L.* and Shaibu, A. S.*, Abstract, p. 116 in the book of abstracts of the Tropentag 2015: management of land use systems for enhanced food security - conflicts, controversies and resolutions, in Humboldt-Universitat Berlin, Germany, September 16 - 18, 2015.
 
Effect of Tillage on the growth and yield of cowpea varieties in sudan Savanna agroecology of Northern Nigeria, Ewansiha, S. U.*, Udensi, U. E.* and Kamara, A., in: Annual Research & Review in Biology, volume 5, number 3, pages 275-284, ISSN 2347-565X, 2015. [DOI]
 
Performance of cowpea grown as an intercrop with maize of different populations, Ewansiha, S. U., Kamara, A., Chiezey, U. F.* and Onyibe, J. E.*, in: African Crop Science Journal, volume 23, number 2, pages 113-122, ISSN 1021-9730, 2015.
 
Response of cowpea to sowing date and maize plant population in a Sudan savannah environment, Ewansiha, S. U.*, Kamara, A., Chiezey, U. F.* and Onyibe, J. E.*, in: Tropical Agriculture, volume 92, number 1, pages 80-91, ISSN 0041-3216, 2015.
 
Using cropping system models and geospatial tools to bring agronomy to scale in the Savannahs of Nigeria, Jibrin, J. M.*, Kamara, A. and Haertel, M., Abstract, p. 361 in the book of abstracts of the Tropentag 2015: management of land use systems for enhanced food security - conflicts, controversies and resolutions, in Humboldt-Universitat Berlin, Germany, September 16 - 18, 2015.
 
Assessment of level, extent and factors influencing striga infestation of maize in the dry Savannahs of Nigeria, Kamara, A., Ekeleme, F. and Jibrin, J. M.*, Abstract, p. 180 in the book of abstracts of the Tropentag 2015: management of land use systems for enhanced food security - conflicts, controversies and resolutions, in Humboldt-Universitat Berlin, Germany, September 16 - 18, 2015.
 

2014

Evaluation of multi-stress tolerant maize varieties for sustainable intensification in northern Guinea Savanna of north eastern Nigeria, Dugje, I., Odo, P. E.*, Teli, I. A.*, Kamara, A. and Asiedu, E. A.*, in: Maydica, volume 59, number 2, pages 136-143, ISSN 0025-6153, 2014.
 
Mid-term and cost-benefit study of smallholder farmers in Striga-Infested maize and cowpea growing areas of Northern Nigeria, Amaza, P.*, Hassan, M. B.*, Abdoulaye, T., Kamara, A. and Oluoch, M., International Institute of Tropical Agriculture, ISBN 978-978-8444-52-7, 2014.
 
Determinants of adoption of agricultural innovations and profitability of cereals and legumes in the Sudan savanna of Nigeria, Ayanwale, A. B.*, Abdoulaye, T., Kamara, A., Adekunle, A.*, Fatunbi, O.*, Ayedun, B. and Akinola, A. A.*, in: lfe Journal of Agriculture, volume 27, pages 95-110, 2014.
 
Assessment of the relationship between soil properties, Striga hermonthica infestation and the on-farm yields of maize in the dry Savannas of Nigeria, Ekeleme, F., Jibrin, J. M.*, Kamara, A., Oluoch, M., Samndi, A.* and Fagge, A.*, in: Crop Science, volume 66, pages 90-97, ISSN 0261-2194, 2014. [DOI]
 
Cowpea response to planting date under different maize maturity types in West African Sudan savannah, Ewansiha, S. U.*, Kamara, A. and Chiezey, U. F.*, in: Journal of Tropical Agriculture, volume 52, number 2, pages 139-144, ISSN 0971-636X, 2014.
 
Agronomic responses of diverse cowpea cultivars to planting date and cropping system, Ewansiha, S. U.*, Kamara, A., Chiezey, U. F. and Onyibe, J. E.*, in: Tropical Agriculture, volume 91, number 2, pages 116-130, ISSN 0041-3216, 2014.
 
Varietal Trials and Physiological Basis for Yield Differences among Cowpea Varieties in Sudan Savanna of Nigeria, Kamai, N.*, Kamara, A. and Omoigui, L.*, in: International Journal of Agriculture Innovations and Research, volume 2, number 5, pages 855-859, ISSN 2319-1473, 2014.
 
Group dynamics and improvement of rural livelihoods under the Sudan Savanna Taskforce Project, Shitu, M. B.*, Kamara, A., Mbavai, J. J.* and Ndaghu, N.*, Booklet, 2014.
 
Performance of cowpea cultivars when grown as an intercrop with maize of contrasting maturities, Ewansiha, S. U.*, Kamara, A. and Onyibe, J. E.*, in: Archives of Agronomy and Soil Science, volume 60, number 5, pages 597-608, ISSN 0365-0340, 2014. [DOI]
 
Assessment of level, extent and factors influencing Striga infestation of cereals and cowpea in a Sudan Savanna ecology of northern Nigeria, Kamara, A., Ekeleme, F., Jibrin, J. M.*, Tarawali, G. and Tofa, A., in: Agriculture, Ecosystems and Environment, volume 188, pages 111-121, ISSN 0167-8809, 2014. [DOI]
 
Agronomic Response of Soybean Varieties to Plant Population in the Guinea Savannas of Nigeria, Kamara, A., Ewansiha, S. U.*, Boahen, S. and Tofa, A., in: Agronomy Journal, volume 106, number 3, pages 1051-1059, ISSN 0002-1962, 2014. [DOI]
 

2013

Soybean varietal response to plant population in the Guinea Savannas of Nigeria, Kamara, A., Ewansiha, S. U.* and Tofa, A., African Crop Science Society (ACSS), 2013.
 
Assessment of the level, extent, and factors influencing Striga infestation of cereal and cowpea fields in the Sudan Savanna Zone of Northern Nigeria, Kamara, A., Ekeleme, F.*, Jibrin, J. M.* and Tofa, A., International Parasitic Plant Society (IPPS), 2013.
 
Assessment of nitrogen uptake and utilization in drought tolerant and Striga resistant tropical maize varieties, Kamara, A., Ewansiha, S. U.* and Menkir, A., in: Archives of Agronomy and Soil Science, pages 1-14, ISSN 0365-0340, 2013. [DOI]
 
Assessment of the level and extent of Striga infestation of cereal and cowpea fields in a dry savanna ecology of Northern Nigeria (ABSTRACT), Kamara, A., Ekeleme, F.*, Jibrin, J. M.* and Tofa, A., Abstract, P.61 in Programme and Abstracts, 12th World Congress on Parasitic Plants 15th - 20th July, Sheffield, United Kingdom, 2013.
 

2012

Sustainable intensification of cereal-based farming systems in Ghana's Guinea savanna: constraints and opportunities identified with local communities, Ellis-Jones, J., Larbi, A., Hoeschle-Zeledon, I., Dugje, I.*, Teli, I. A.*, Buah, S. S.*, Kanton, R.*, Kombiok, J. M.*, Kamara, A. and Gyamfi, I., 2012.
 
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.
 
Are investments in an informal seed system for cowpea a worthwhile endeavour?, Biemond, P. C., Stomph, T., Kamara, A., Abdoulaye, T., Hearne, S. and Struik, P. C., in: International Journal of Plant Production, volume 6, number 3, pages 367-386, ISSN 1735-6814, 2012.
 
Evaluation of cowpea genotypes for adaptation to agro-ecologies of Mozambique, Boahen, S., Chikoye, D., Kamara, A. and Boukar, O., Abstract: ASA-CSSA-SSSA international annual meetings, Oct. 21-24, 2012, Cincinnati, Ohio, 2012.
 
Improving the productivities of cowpea-cereal systems in the savannas of West Africa through dissemination of improved varieties and cropping systems, Ajeigbe, H., Singh, B., Kamara, A., Chikoye, D., Adamu, R. S.*, Saidou, A.K.* and Adeosun, J. O.*, in: Innovative research along the cowpea value chain. Proceedings of the Fifth World Cowpea Conference on Improving livelihoods in the cowpea value chain through advancement in science, held in Saly, Senegal, 27 September - 1 October 2010, pages 217-227, International Institute of Tropical Agriculture (IITA), 2012.
 
Improving the productivities of cowpea-cereal systems in the savannas of West Africa through dissemination of improved varieties and cropping systems, Ajeigbe, H., Singh, B., Kamara, A., Chikoye, D., Adamu, R. S.*, Saidou, A.K.* and Adeosun, J. O.*, in: Innovative research along the cowpea value chain: Proceedings of the fifth world cowpea conference on improving livelihoods in the cowpea value chain through advancement in science, held in Saly, Senegal, 27 September-1 October 2010, pages 217-230, IITA, 2012.
 
Comparative responses of cowpea breeding lines to Striga and Alectra in the dry savanna of northeast Nigeria, Omoigui, L.*, Kamara, A., Ishiyaku, M.* and Boukar, O., in: African Journal of Agricultural Research, volume 7, number 5, pages 747-754, ISSN 1991-637X, 2012. [DOI]
 
Simulating planting date and cultivar effects on dryland maize production using CERES-maize model, Jibrin, J. M.*, Kamara, A. and Ekeleme, F.*, in: African Journal of Agricultural Research, volume 7, number 40, pages 5530-5536, ISSN 1991-637X, 2012. [DOI]
 
Response of old and new cowpea varieties to insecticide spray regimes in the Sudan savanna of Nigeria, Kamara, A., Ewansiha, S. U.*, Ajeigbe, H. A.+ and Omoigui, L.*, in: Archives of Phytopathology and Plant Protection, pages 1-12, ISSN 0323-5408, 2012. [DOI]
 
Improving the productivity of cowpea in the savannas of northeast Nigeria through participatory evaluation and dissemination of improved varieties, Kamara, A., Omoigui, L.* and Ewansiha, S. U., in: Innovative research along the cowpea value chain. Proceedings of the Fifth World Cowpea Conference on Improving livelihoods in the cowpea value chain through advancement in science, held in Saly, Senegal, 27 September - 1 October 2010, pages 202-211, International Institute of Tropical Agriculture (IITA), Ibadan, 2012.
 
Improvements in grain and fodder yield of cowpea (Vigna unguiculata) varieties developed in the Sudan savannas of Nigeria over the past four decades, Kamara, A., Ewansiha, S. U., Ajeigbe, H., Okechukwu, R., Tefera, H., Boukar, O. and Omoigui, L.*, in: Innovative research along the cowpea value chain. Proceedings of the Fifth World Cowpea Conference on Improving livelihoods in the cowpea value chain through advancement in science, held in Saly, Senegal, 27 September - 1 October 2010, pages 179-188, International Institute of Tropical Agriculture (IITA), 2012.
 
Intensive cereal-legume-livestock systems in West African dry Savannas, Kamara, A., Ajeigbe, H., Omoigui, L.* and Chikoye, D., Issues in Tropical Agriculture, volume 1, pages 1-17, chapter 5, International Centre for Tropical Agriculture (CIAT), 2012.
 

2011

Striga the bewitching weed: interdisciplinary context of control, Hearne, S., Beed, F., Menkir, A., Badu-Apraku, B., Muranaka, S., Boukar, O., Fatokun, C. and Kamara, A., Abstarct (Oral) in the proceedings of the 11th World Congress on parasitic plants, 7 - 12 June, Martina Franca, Italy, 2011.
 
Baseline report of the Sudan Savanna zone of the Kano-Katsiina-Maradi (KKM) Project Learning Site (PLS) of the sub-Saharan Africa-Challenge Program (SSA-CP), Ayanwale, A. B.*, Abdoulaye, T., Sanni, A.*, Damisa, M. A.*, Kamara, A., Adekunle, A.*, Fatunbi, A. O., Ayedun, B. and Akinola, A. A.*, 2011.
 
Household typology based analysis of livelihood strategies and poverty status in the Sudan Savannah of Nigeria: baseline conditions, Damisa, M. A.*, Sanni, S. A.*, Abdoulaye, T., Kamara, A. and Ayanwale, A. B.*, in: Learning Publics Journal of Agriculture and Environmental Studies, volume 2, number 1, pages 146-160, ISSN 2026-5654, 2011.
 
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]
 
Study of the dynamics of resource use and identification of policy gaps in agricultural production, processing and marketing in the Sudan Savannas of Northern Nigeria, Abalu, G. I.*, Abdoulaye, T., Kamara, A. and Adekunle, A.*, 2011.
 
Effect of sowing date on Striga infestation and yield of sorghum (Sorghum bicolor [L.] Moench) cultivars in the Sudan savanna of northeast Nigeria, Ekeleme, F.*, Kamara, A., Omoigui, L., Chikoye, D., Dugje, I.* and Tegbaru, A., in: African Journal of Agricultural Research, volume 6, number 14, pages 3240-3246, ISSN 1991-637X, 2011.
 
Soil fertility variability in relation to the yields of maize and soybean under intensifying cropping systems in the tropical savannas of northeastern Nigeria, Kwari, J.*, Kamara, A., Ekeleme, F.* and Omoigui, L.*, volume 1, pages 457-464, chapter 1 Part II, Springer, ISBN 978-90-481-2541-8, 2011. [DOI]
 
Phosphorus effects on growth and yield of groundnut varieties in the tropical savannas of northeast Nigeria, Kamara, A., Ekeleme, F.*, Kwari, J.*, Omoigui, L.* and Chikoye, D., in: Journal of Tropical Agriculture, volume 49, number 1 and 2, pages 25-30, ISSN 0971-636X, 2011.
 
Response of exotic sorghum (Sorghum bicolor [L.] Moench) cultivars to planting date under natural infestation of Striga hermonthica (Del) Benth. in the Sudan savanna zone of northeast Nigeria, Kamara, A., Ekeleme, F.*, Omoigui, L., Menkir, A., Chikoye, D. and Dugje, I.*, in: Archives of Agronomy and Soil Science, volume 57, number 6, pages 679-692, ISSN 0365-0340, 2011. [DOI]
 
Performance of semi-determinate and indeterminate cowpeas relay-cropped into maize in Northeast Nigeria, Kamara, A., Omoigui, L.*, Ewansiha, S. U., Ekeleme, F.*, Chikoye, D. and Ajeigbe, H., in: African Journal of Agricultural Research, volume 6, number 7, pages 1763-1770, ISSN 1991-637X, 2011.
 
Influence of nitrogen fertilization on yield and yield components of rain-fed lowland NERIC rice in the northern Guinea savanna of Nigeria, Kamara, A., Ekeleme, F.*, Omoigui, L.* and Chikoye, D., in: African Journal of Agricultural Research, volume 6, number 13, pages 3092-3097, ISSN 1991-637X, 2011.
 
Phosphorus and nitrogen fertilization of soybean in the Nigerian savanna, Kamara, A., Ekeleme, F.*, Omoigui, L.* and Ajeigbe, H., in: Experimental Agriculture, pages 1-10, ISSN 0014-4797, 2011. [DOI]
 
Genetic gain in yield and agronomic characteristics of cowpea cultivars developed in the Sudan Savannas of Nigeria over the past three decades, Kamara, A., Tefera, H., Ewansiha, S. U., Ajeigbe, H., Okechukwu, R., Boukar, O. and Omoigui, L.*, in: Crop Science, volume 51, number 5, pages 1877-1886, ISSN 0011-183X, 2011. [DOI]
 

2010

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.
 
Impact of promoting sustainable agriculture in Borno (PROSAB) program on adoption of improved crop varieties in Borno State of Nigeria, Bamire, A. S.*, Abdoulaye, T., Amaza, P.*, Tegbaru, A., Alene, A. and Kamara, A., in: Journal of Food, Agriculture and Environment, volume 8, number 3 & 4, pages 391-398, ISSN 1459-0255, 2010.
 
Seed health constrains upscaling informal seed systems, Biemond, P. C., Ayodele, M., Oguntade, O., Kamara, A., Stomph, T. and Struik, P. C., Abstract (Oral presentaion) 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.
 
Analysis of technical efficiency among community-based seed producers in the savannas of Borno State, Nigeria, Amaza, P.*, Udoh, E. J.*, Abdoulaye, T. and Kamara, A., in: Journal of Food, Agriculture and Environment, volume 8, number 2, pages 1073-1079, ISSN 1459-0255, 2010.
 
Field evaluation of sorghum varieties to Striga hermonthica infestation in north eastern Nigerian savannas, Dugje, I.*, Ekeleme, F.*, Kamara, A., Menkir, A., Chikoye, D. and Omoigui, L., in: Nigerian Journal of Weed Science, volume 23, pages 1-11, ISSN 0794-4950, 2010.
 
Improving the productivities of cowpea-cereal cropping systems in the dry savannas of West Africa through dissemination of improved cowpea cropping systems, Ajeigbe, H., Singh, B. B., Kamara, A., Chikoye, D., Saidou, A.K.* and Adamu, R. S.*, Abstract (Oral presentaion) 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.
 
Using a linear discriminant analysis approach of baseline conditions to develop household categories in the Sudan Savanna ( KKM PLS SSA CP ), Nigeria, Olarinde, L.*, Abdoulaye, T., Kamara, A., Binam, J. N. and Adekunle, A., in: Journal of Food, Agriculture and Environment, volume 8, number 2, pages 805-812, ISSN 1459-0255, 2010.
 
Analysing the prospect of the IAR4D's innovation platforms in improving the productive efficienceis of cereal-legume farmers in the Sudan Savanna of Nigeria, Olarinde, L.*, Abdoulaye, T., Kamara, A., Binam, J. N. and Adekunle, A., in: Journal of Food, Agriculture and Environment, volume 8, number 2, pages 813-820, ISSN 1459-0255, 2010.
 
Evaluation of farmers' crop production practices that determine Striga gesnerioides infestation of cowpea fields in Nigerian savannas, Dugje, I.*, Kamara, A. and Ekeleme, F.*, in: Nigerian Journal of Weed Science, volume 23, pages 12-24, ISSN 0794-4950, 2010.
 
Breeding progress for grain yield and associated traits in medium and late maturing promiscuous soybeans in Nigeria, Tefera, H., Kamara, A., Asafo-Adjei, B.* and Dashiell, K.+, in: Euphytica, volume 175, number 2, pages 251-260, ISSN 1573-5060, 2010. [DOI]
 
Response of upland rice cultivars to nitrogen fertilizer in the savannas of Nigeria, Kamara, A., Ekeleme, F., Omoigui, L., Oikeh, S.*, Chikoye, D. and Tegbaru, A., in: Agronomy Journal, volume 102, number 1, pages 333-339, ISSN 0002-1962, 2010.
 
Improvement in grain and fodder yields of cowpea genotypes representing four decades of breeding in the Nigerian Sudan savannas, Kamara, A., Ajeigbe, H., Ewansiha, S. U., Boukar, O., Okechukwu, R., Tefera, H. and Omoigui, L., Abstract (Oral presentaion) 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.
 
Improving the productivity of cowpea in the savannas of northeast Nigeria through participatory evaluation and dissemination of improved varieties, Kamara, A., Omoigui, L. and Ewansiha, S. U., Abstract (Oral presentaion) 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.
 
A participatory evaluation of improved cowpea cultivars in the Guinea and Sudan savanna zones of north east Nigeria, Kamara, A., Ellis-Jones, J., Ekeleme, F.*, Omoigui, L., Amaza, P., Chikoye, D. and Dugje, I.*, in: Archives of Agronomy and Soil Science, volume 56, number 3, pages 355-370, ISSN 0365-0340, 2010. [DOI]
 
Participatory evaluation of improved cowpea cultivars in the Guinea and Sudan savanna zones of north east Nigeria, Kamara, A., Ellis-Jones, J., Ekeleme, F.*, Omoigui, L., Amaza, P., Chikoye, D. and Dugje, I.*, in: Archives of Agronomy and Soil Science, volume 56, number 3, pages 355-370, ISSN 1476-3567, 2010.
 
Integrating planting date with insecticide spraying regimes to manage insect pests of cowpea in north-eastern Nigeria, Kamara, A., Ekeleme, F., Omoigui, L., Abdoulaye, T., Amaza, P., Chikoye, D. and Dugje, I.*, in: International Journal of Pest Management, volume 56, number 3, pages 243-253, ISSN 0967-0874, 2010.
 

2009

Farmers' guide to soybean production in northern Nigeria, Dugje, I.*, Omoigui, L., Ekeleme, F., Bandyopadhyay, R., Kumar, P. L. and Kamara, A., International Institute of Tropical Agriculture (IITA), ISBN 978-131-333-1, 2009.
 
Production du niebe en Afrique de l'Ouest: guide du paysan, Dugje, I.*, Omoigui, L., Ekeleme, F., Kamara, A. and Ajeigbe, H., International Institute of Tropical Agriculture (IITA), 2009.
 
Farmer's guide to cowpea production in west Africa, Dugje, I.*, Omoigui, L., Ekeleme, F., Kamara, A. and Ajeigbe, H., International Institute of Tropical Agriculture (IITA), ISBN 978-131-332-3, 2009.
 
Response of early maturing maize landraces and improved varieties to moisture deficit and sufficient water supply, Menkir, A., Badu-Apraku, B., Ajala, S., Kamara, A. and Ndiaye, A.*, in: Plant Genetic Resources: Characterization and Utilization, volume 7, number 3, pages 205-215, ISSN 1479-2621, 2009.
 
Response of upland rice cultivars to weed competition in the savannas of West Africa, Ekeleme, F., Kamara, A., Oikeh, S., Omoigui, L., Amaza, P., Abdoulaye, T. and Chikoye, D., in: Crop Protection, volume 28, number 1, pages 90-96, ISSN 0261-2194, 2009. [DOI]
 
Improvement in grain and fodder yields of early-maturing promiscuous soybean varieties in the Guinea savanna of Nigeria, Tefera, H., Kamara, A., Asafo-Adjei, B.* and Dashiell, K.+, in: Crop Science, volume 49, pages 2037-2042, ISSN 0011-183X, 2009.
 
Relation of yields of soybean and maize to sulphur, zinc and copper status of soils under intensifying cropping systems in the tropical savannas of north-east Nigeria, Kwari, J.*, Kamara, A., Ekeleme, F. and Omoigui, L., in: Journal of Food, Agriculture and Environment, volume 7, number 1, pages 129-133, ISSN 1459-0255, 2009.
 
Planting date and cultivar effects on grain yield in dryland corn production, Kamara, A., Ekeleme, F., Chikoye, D. and Omoigui, L., in: Agronomy Journal, volume 101, number 1, pages 91-98, ISSN 0002-1962, 2009.
 
Influence of nitrogen fertilization on the performance of early and late maturing maize varieties under natural infestation with Striga hermonthica (Del.) Benth, Kamara, A., Ekeleme, F., Omoigui, L., Menkir, A., Chikoye, D., Dugje, I.*, Abdoulaye, T. and Amaza, P., in: Archives of Agronomy and Soil Science, volume 55, number 2, pages 125-145, ISSN 0365-0340, 2009.
 

2008

Response of corn genotypes to weed interference and nitrogen in Nigeria, Chikoye, D., Fontem Lum, A., Abaidoo, R., Menkir, A., Kamara, A., Ekeleme, F. and Sanginga, N., in: Weed Science, volume 56, number 3, pages 424-433, ISSN 0043-1745, 2008.
 
Guide to certified seeds production in Borno State, Nigeria, Dugje, I.*, Onyibe, J. E.*, Ekeleme, F., Kamara, A., Tegbaru, A., Omoigui, L. and Bassi, S. A., 2008.
 
Evaluation of artificial field infestation techniques with Striga Hermonthica for resistance screening in maize (Zea mays L.), Ibikunle, O., Menkir, A., Kamara, A., Ajeigbe, H. and Smith, M. A. K.*, in: Maydica, volume 53, pages 97-100, ISSN 0025-6153, 2008.
 
Evaluation of tropical maize hybrids under drought stress, Oyekale, K. O.*, Daniel, I.*, Kamara, A., Adegbite, A. E.* and Ajala, M. O.*, in: Journal of Food, Agriculture and Environment, volume 6, number 2, pages 260-264, ISSN 1459-0255, 2008.
 
Guide to safe and effective use of pesticides for crop production in Borno State, Nigeria, Dugje, I.*, Ekeleme, F., Kamara, A., Omoigui, L., Tegbaru, A., Teli, I. A.* and Onyibe, J. E.*, As a guide, 2008.
 
Influence of farmers' crop managemnt practices on Striga hermonthica infestation and grain yield of maize (Zea mays L.) in the savanna zones of northeast Nigeria, Dugje, I.*, Kamara, A. and Omoigui, L., in: Journal of Agronomy, volume 7, number 1, pages 33-40, 2008.
 
Comparative performance of common grain legumes in the Sudan savanna zone of Nigeria, Ajeigbe, H., Kamara, A. and Chikoye, D., in: Proceedings of 42nd Annual Conference of Agricultural Society of Nigeria, Ebonyi State University, Abakaliki, Nigeria, 19-23 October, 2008, pages 210-213, Agricultural Society of Nigeria, 2008.
 
Guide to Rice Production in Borno State, Nigeria, Ekeleme, F., Kamara, A., Omoigui, L., Tegbaru, A., Mshelia, J. and Onyibe, J. E.*, 2008.
 
Analyses of soil physico chemical properties determining Striga hermonthica infestations and grain yield of maize (Zea mays L.) in nigerian Guinea and Sudan savannas, Dugje, I.*, Kamara, A. and Kwari, J.*, in: Nigerian Journal of Weed Science, volume 21, pages 23-37, ISSN 0794-4950, 2008.
 
Effect of phosphorus application and soybean cultivar on grain and dry matter yield of subsequent maize in the tropical savannas of north-eastern Nigeria, Kamara, A., Kwari, J.*, Ekeleme, F., Omoigui, L. and Abaidoo, R., in: African Journal of Biotechnology, volume 7, number 15, pages 2593-2599, ISSN 1684-5315, 2008.
 
A participatory approach to increasing productivity of maize through Striga hermonthica control in Northeast Nigeria, Kamara, A., Ellis-Jones, J., Amaza, P., Omoigui, L., Helsen, J., Dugje, I.*, Kamai, N.*, Menkir, A. and White, R., in: Experimental Agriculture, volume 44, number 3, pages 349-364, ISSN 0014-4797, 2008. [DOI]
 
Field performance of improved cowpea varieties under conditions of natural infestation by the parasitic weed Striga gesnerioides, Kamara, A., Chikoye, D., Ekeleme, F., Omoigui, L. and Dugje, I.*, in: International Journal of Pest Management, volume 54, number 3, pages 189-195, ISSN 0967-0874, 2008.
 

2007

Breeding maize for broad-based resistance to Striga hermonthica, Menkir, A., Badu-Apraku, B., Yallou, C.*, Kamara, A. and Ejeta, G., pages 99-114, World Scientific Publishing, 2007.
 
Response of low-N pool maize population to nitrogen uptake and use efficiency after three cycles of full-sib recurrent selection, Omoigui, L., Alabi, S.* and Kamara, A., in: Journal of Agricultural Science, volume 145, pages 481-490, 2007. [DOI]
 
A participatory adoption of improved crop technologies in the savannas of West Africa: empirical study from Borno, Nigeria, Amaza, P., Ellis-Jones, J., Kamara, A., Helsen, J. and Gaya, H.*, in: 8th African Crop Science Society Conference, 27-31 Oct. 2007: proceedings, pages 1369-1375, 2007.
 
Breeding strategies to improve maize for adaptation to low soil nitrogen in West and Central Africa, Ajala, S., Menkir, A., Kamara, A., Alabi, S.* and Abdulai, M. S.*, in: African Crop Science Conference Proceedings, pages 87-94, African Crop Science Society, 2007.
 
Evaluation of cowpea genotypes for their reactions to Striga gesnerioides in the dry savanna of northeast Nigeria, Omoigui, L., Kamara, A., Massawe, F., Ishiyaku, M.*, Boukar, O., Alabi, S.* and Ekeleme, F., in: African Crop Science Conference Proceedings, pages 273-278, African Crop Science Society, 2007.
 
Effect of weed competition on upland rice production in north-eastern Nigeria, Ekeleme, F., Kamara, A., Oikeh, S., Chikoye, D. and Omoigui, L., in: African Crop Science Conference Proceedings, pages 61-65, African Crop Science Society, 2007.
 
Assessment of farmers' crop management practices influencing Striga hermonthica infestation and grain yield of sorghum (Sorghum bicolor), Dugje, I.*, Kamara, A. and Omoigui, L., in: Nigerian Journal of Weed Science, volume 20, pages 25-35, 2007.
 
Effects of sole cropping, intercropping and rotation with legume trap-crops on striga control and maize grain yield in farmers' fields in the Guinea savannas, Kureh, I.* and Kamara, A., in: In demand-driven technologies for sustainable maize production in West and Central Africa, proceedings of the fifth biennial regional maize workshop, pages 169-179, International Institute of Tropical Agriculture (IITA); WECAMAN, Ibadan, Nigeria; Cotonou, Benin, 2007.
 
Assessment of striga infestation in crop fields in the savanna zones of northeast Nigeria, Dugje, I.*, Kamara, A. and Omoigui, L., in: In demand-driven technologies for sustainable maize production in West and Central Africa, proceedings of the fifth biennial regional maize workshop, pages 271-281, International Institute of Tropical Agriculture (IITA); WECAMAN, Ibadan, Nigeria: Cotonou, Benin, 2007.
 
Influence of insecticide spraying regimes and cultivar on insect pests and yield of cowpea in the dry savannas of north-eastern Nigeria, Kamara, A., Chikoye, D., Omoigui, L. and Dugje, I.*, in: Journal of Food, Agriculture and Environment, volume 5, number 1, pages 154-158, 2007.
 
Influence of phosphorus application on growth and yield of soybean genotypes in the tropical savannas of northeast Nigeria, Kamara, A., Abaidoo, R., Kwari, J.* and Omoigui, L., in: Archives of Agronomy and Soil Science, volume 53, number 5, pages 539-552, 2007.
 
Cultivar and nitrogen fertilization effects on Striga infestation and grain yield of early maturing tropical maize, Kamara, A., Menkir, A., Chikoye, D., Omoigui, L. and Ekeleme, F., in: Maydica, volume 52, pages 415-423, 2007.
 
Cultivar and insecticide spraying regimes effects on insect pests and grain yield of cowpea in the dry savannas of north-eastern Nigeria, Kamara, A., Chikoye, D., Omoigui, L. and Dugje, I.*, in: African Crop Science Conference Proceedings, pages 179-184, African Crop Science Society, 2007.
 
Potential of drought-tolerant maize varieties in nitrogen-deficient soils of the Guinea savannas, Kamara, A., Menkir, A., Omoigui, L. and Kureh, I.*, in: In demand-driven technologies for sustainable maize production in West and Central Africa, proceedings of the fifth biennial regional maize workshop, pages 180-193, International Institute of Tropical Agriculture (IITA); WECAMAN, Ibadan, Nigeria; Cotonou, Benin, 2007.
 

2006

Responses of maize hybrids developed for drought tolerance to low soil nitrogen, Meseka, S. K.*, Menkir, A., Elhassan, A., Ibrahim, S. S., Ajala, S. and Kamara, A., in: Journal of Agricultural Science, volume 4, number 1, pages 1-14, ISSN 0021-8596, 2006.
 
Genetic gains from cycles of full-sib recurrent selection for low nitrogen tolerance in a tropical maize population, Omoigui, L., Alabi, S.*, Ado, S., Ajala, S. and Kamara, A., in: Maydica, volume 51, number 3/4, pages 497-505, 2006.
 
Influence of cereal-legume rotation on soil chemical properties, crop yield and Striga control, Tarfa, B.*, Kureh, I.*, Kamara, A. and Maigida, D., in: Journal of Agronomy, volume 5, number 2, pages 362-368, 2006.
 
Genetic variability and heritability studies of some reproductive traits in cowpea (Vigna unguiculata (L.) Walp.), Omoigui, L., Ishiyaku, M.*, Kamara, A., Alabi, S.* and Mohammed, S.*, in: African Journal of Biotechnology, volume 13, number 5, pages 1191-1195, ISSN 1684-5315, 2006.
 
Progress in breeding tropical maize for adaptation to sub-optimal soil nitrogen at IITA, Menkir, A., Ajala, S., Kamara, A. and Meseka, S. K.*, in: 42nd Illinois Corn Breeder's School, March 6-7, 2006, Champaign, Urbana, USA, 2006.
 
Guide to cowpea production in Borno State, Nigeria, Onyibe, J. E.*, Kamara, A. and Omoigui, L., 2006.
 
Guide to maize production in Borno State, Nigeria: promoting sustainable agriculture in Borno State (PROSAB), Onyibe, J. E.*, Kamara, A. and Omoigui, L., 2006.
 
Guide to soybean production in Borno State, Nigeria, Onyibe, J. E.*, Kamara, A. and Omoigui, L., 2006.
 
Influence of cereal-legume rotation on Striga control and maize grain yield in farmers' fields in the northern Guinea Savanna of Nigeria, Kureh, I.*, Kamara, A. and Tarfa, B.*, in: Journal of Agriculture and Rural Development in the Tropics and Subtropics, volume 107, number 1, pages 41-54, ISSN 1612-9830, 2006.
 
Infestation of crop fields by Striga species in the savanna zones of northeast Nigeria, Dugje, I.*, Kamara, A. and Omoigui, L., in: Agriculture, Ecosystems and Environment, volume 116, number 3-4, pages 251-254, ISSN 0167-8809, 2006.
 
Performance of old and new maize hybrids at high plant densities in the tropical Guinea Savanna, Kamara, A., Menkir, A., Kureh, I.*, Omoigui, L. and Ekeleme, F., in: Communications in Biometry and Crop Science, volume 1, number 1, pages 41-48, 2006.
 
Response to low soil nitrogen stress of S1 maize breeding lines selected for high vertical root-pulling resistance, Kamara, A., Menkir, A., Kureh, I.* and Omoigui, L., in: Maydica, volume 51, number 3-4, pages 425-433, ISSN 0025-6153, 2006.
 
Deterioration in soil fertility as a consequence of cropping intensification in the savannas of northeastern Nigeria, Kamara, A., Kwari, J.* and Omoigui, L., in: Sustainability-its impact on soil management and environment. Proceedings of 17th Triennial conference, International Soil Tillage Organization. 28th August-3rd September, Christian-Albrecht’s Universitaet, Kiel, Germany, pages 584-592, 2006.
 
Participatory on-farm evaluation of the performance of drought-tolerant maize varieties in the Guinea Savannas of Nigeria, Kamara, A., Kureh, I.*, Menkir, A., Kartung, P., Tarfa, B.* and Amaza, P., in: Journal of Food, Agriculture and Environment, volume 4, number 1, pages 192-196, ISSN 1459-0255, 2006.
 

2005

Screening maize for drought tolerance in the Guinea savanna of West and Central Africa, Badu-Apraku, B., Fakorede, M., Menkir, A., Kamara, A. and Dapaah, S., in: Cereal Research Communications, volume 33, number 2-3, pages 533-540, 2005.
 
Response of soybean genotypes to Alectra vogelii infestation under natural field conditions, Kureh, I.*, Alabi, S.* and Kamara, A., in: Tropicultura, volume 23, number 3, pages 183-189, ISSN 0771-3312, 2005.
 
Effect of drought and weed management on maize genotypes and the tensiometric soil water content of an eutric nitisol in south Western Nigeria, Azeez, J.*, Chikoye, D., Kamara, A., Menkir, A. and Adetunji, M.*, in: Plant and Soil, volume 276, number 1, pages 61-68, ISSN 0032-079X, 2005.
 
Performance of diverse maize genotypes under nitrogen deficiency stress in the northern Guinea Savanna of Nigeria, Kamara, A., Menkir, A., Ajala, S. and Kureh, I.*, in: Experimental Agriculture, volume 41, number 2, pages 199-212, 2005.
 

2004

Response of early maturing maize to multiple-stresses in the Guinea savanna of west and central Africa, Badu-Apraku, B., Fakorede, M., Menkir, A., Kamara, A., Akanvou, L.* and Chabi, Y.*, in: Journal of Genetics and Breeding, volume 58, pages 119-130, ISSN 0394-9257, 2004.
 
Effects of drought-screening methodology on genetic variances and covariances in Pool 16 DT maize population, Badu-Apraku, B., Fakorede, M.*, Menkir, A., Kamara, A. and Adam, A., in: Journal of Agricultural Science, volume 142, pages 445-452, ISSN 0021-8596, 2004. [DOI]
 
Genetic gain in cassava disease resistance, Okechukwu, R., Mkumbira, J., Dixon, A. and Kamara, A., 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.
 
Agronomic performance of maize cultivars representing three decades of breeding in the Guinea Savannas of West and Central Africa, Kamara, A., Menkir, A., Fakorede, M., Ajala, S., Badu-Apraku, B. and Kureh, I.*, in: Journal of Agricultural Science, volume 142, pages 567-575, ISSN 0021-8596, 2004. [DOI]
 
Vertical root-pulling resistance in maize is related to nitrogen uptake and yield, Kamara, A., Kling, J., Ajala, S. and Menkir, A., pages 228-232, International Maize and Wheat Improvement Center (CIMMYT); Kenya Agricultural Research Institute (KARI), 2004.
 
The potential of resilient crops in the cereal-legume production systems of the dry and moist savannas of West and Central Africa, Kamara, A., Menkir, A., Chikoye, D., Kureh, I.* and Sanginga, P., in: Extended abstracts for an international symposium on improving human welfare and environmental conservation by empowering farmers to combat soil fertility degradation, 17-21 May 2004, Yaounde, Cameroon, 2004.
 
Combating Striga hermonthica in the West African savannas using host-plant resistance and legume trap crops, Kamara, A., Menkir, A., Kureh, I.*, Franke, L. and Ibikunle, O., in: 8th International Parasitic Weeds Symposium in collaboration with the 4th International Weed Science Congress, 24-25 June 2004, Durban, South Africa, 2004.
 
Cereal-legume rotation to control Striga and improve on-farm yield of maize in northern Guinea savanna: effects of one-year rotation, Kamara, A., Chikoye, D., Menkir, A., Kureh, I.*, Franke, L. and Ibikunle, O., in: Book of Abstracts of the 4th International Weed Science Congress, 20-25 June 2004, Durban, South Africa, 2004.
 

2003

Maize revolution in West and Central Africa: an overview, Fakorede, M., Badu-Apraku, B., Kamara, A., Menkir, A. and Ajala, S., pages 3-15, WECAMAN; International Institute of Tropical Agriculture (IITA), 2003.
 
Maize revolution in West and Central Africa: an overview, Fakorede, M., Badu-Apraku, B., Kamara, A., Menkir, A. and Ajala, S., WECAMAN; International Institute of Tropical Agriculture (IITA), 2003.
 
Vertical root-pulling resistance and its effects on lodging and grain yield of maize lines in the southern Guinea savanna of Nigeria, Kamara, A., Kling, J., Menkir, A. and Ibikunle, O., in: Maize revolution in West and Central Africa: proceedings of a Regional Maize Workshop, 14-18 May 2001. Ibadan, Nigeria, pages 252-261, International Institute of Tropical Agriculture (IITA), 2003.
 
Reproductive and stay-green trait response of maize hybrids, improved open-pollinated varieties, and farmers' local varieties to terminal drought stress, Kamara, A., Menkir, A., Badu-Apraku, B. and Ibikunle, O., in: Maydica, volume 48, pages 29-37, ISSN 0025-6153, 2003.
 
The influence of drought stress on growth, yield, and yield components of some maize genotypes, Kamara, A., Menkir, A., Badu-Apraku, B. and Ibikunle, O., in: Journal of Agricultural Sciences, volume 141, pages 43-50, 2003.
 
Agronomic performance of maize (Zea mays L.) breeding lines derived from a low nitrogen maize population, Kamara, A., Kling, J., Menkir, A. and Ibikunle, O., in: Journal of Agricultural Sciences, volume 141, pages 221-230, ISSN 0021-8596, 2003. [DOI]
 
Association of vertical root-pulling resistance with root lodging and grain yield in selected S1 maize lines derived from a tropical low-Nitrogen population, Kamara, A., Kling, J., Menkir, A. and Ibikunle, O., in: Journal of Agronomy and Crop Science, volume 189, pages 129-135, 2003.
 

2002

Nitrogen use efficiency of some maize genotypes improved or selected for tolerance to low nitrogen and drought stress, Kamara, A., Menkir, A. and Sanginga, P., in: Proceedings, Witzenhausen, Germany, 2002.
 
The relationship between vertical root-pulling resistance and nitrogen uptake and utilization in maize breeding lines, Kamara, A., Kling, J., Ajala, S. and Menkir, A., in: Maydica, volume 47, pages 135-140, 2002.
 

2001

Breeding of drought and water stress tolerant crops, Ortiz, R., Ekanayake, I. J., Mahalakshmi, V., Kamara, A., Menkir, A., Nigam, S., Singh, B. and Saxena, N.*, International Water Management Institute (IMWI), 2001.
 
Vertical root-pulling resistance and its effects on lodging and yield of 18 maize S1 lines in the southern Guinea savanna, Nigeria, Kamara, A. and Kling, J., pages 32, International Institute of Tropical Agriculture (IITA), Cotonou, Benin Republic, 2001.
 
Physiomorphological changes associated with the genetic improvement of cassava (Manihot esculenta Crantz) in West and Central Africa over the last 30 years: growth, yield, leaf area index and light interception, Kamara, A. and Dixon, A., in: Book of Abstracts of the Eighth Triennial Symposium of the International Society fro Tropical Root Crops (ISTRC) - Africa Branch, 12-16 Nov, pages 22, International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria, 2001.
 
Performance of improved maize varieties under low and high N conditions in the Guinea savannas of Nigeria, Kamara, A., Kling, J., Sanginga, P. and Ajala, S., in: Deutscher Tropentang, 9-11 Oct. Bonn, Germany, pages 127, 2001.
 
Contrasting responses of 12 maize cultivars to terminal drought, Kamara, A. and Menkir, A., pages 76-77, 2001.
 

2000

Economic considerations for recommending soil fertility technologies: the case of cut-and-carry system of mulch production in south-western Nigeria In: Farmers and scientists in a changing environment: assessing research in West Africa, Kormawa, P. and Kamara, A., pages 99-109, Margraf Verlag, 2000.
 
Differences in the response of maize (Zea mays[L.] ) to leaf extracts and mulch from selected multipurpose trees (MPTs), Kamara, A., Akobundu, I. and Sanginga, P., in: Differences in the response of maize (Zea mays[L.] ) to leaf extracts and mulch from selected multipurpose trees (MPTs), pages 35, 2000.
 
The effects of mulch from selected multipurpose trees on nitrogen nutrition, growth and yield of maize (Zea mays), Kamara, A., Jutzi, S., Akobundu, I. and Sanginga, P., in: Journal of Agronomy and Crop Science, volume 184, pages 73-80, 2000.
 
Selective control of weeds in an arable crop by mulches from some multipurpose trees in southwestern Nigeria, Kamara, A., Akobundu, I. and Jutzi, S., in: Agroforestry Systems, volume 50, pages 17-26, 2000.
 

1999

Economic evaluation of using mulch from multipurpose trees in maize-based production systems in south-western Nigeria, Kormawa, P., Kamara, A., Jutzi, Y. and Sanginga, N., in: Experimental Agriculture, volume 35, number 1, pages 101-109, ISSN 0014-4797, 1999.
 
Differences in weed seed banks in planted tree fallows in southwestern Nigeria, Kamara, A., Chikoye, D. and Jutzi, S., in: Journal of Applied Botany and Food Quality (Angewandte Botanik), volume 73, pages 38-42, 1999.
 
Weed seed bank size and composition in an arable crop mulched with pruning from three multipurpose trees in south-western Nigeria, Kamara, A., Akobundu, I., Chikoye, D. and Jutzi, S., in: Journal of Applied Botany (Angewandte Botanik), volume 73, pages 25-30, ISSN 0066-1759, 1999.
 

1997

Gender and variety selection: Farmers assessment of local corn varieties in southern Mali, Defoer, T., Kamara, A. and De Groote, H., in: African Crop Science Journal, volume 5, pages 65-76, 1997.
 
The effect of mulch from three multipurpose trees on weed composition and biomass in maize, Kamara, A., Jutzi, S., Akobundu, I. and Chikoye, D., British Crop Protection Council, 1997.
 

1976

Cropping systems in uplands, Mahapatra, I. C. and Kamara, A., 1976.