The Grain Legumes Improvement Programme (GLIP) is one of the seven research programmes of the Institute; established in 1975 with the zonal mandate to carry out genetic improvement of some major legumes (cowpea, soya bean, winged bean, African yam bean, pegion pea and lima bean) in the southwest agro-ecological zones (high rain forest, transition forest, southern savanna and derived savanna). This is in addition to developing sustainable production technologies for legumes in the South[BM1] West agro[BM2] ecologies through multidisciplinary, participatory and collaborative efforts. Grain legumes are the most economically and nutritionally important African protein sources with the seed yield still low (less than 1 ton per hectare), yield loss of between 46-80% due to severe insect pest, disease and weed infestations as well as non-availability of tolerant or resistant cowpea[BM3] varieties adaptable to the ecology. In addition to the aforementioned factors, lack of knowledge of good agronomic practices, scarcity of viable seeds for planting and discouraging marginal returns to farmers further worsen the limitations of grain legumes
It is therefore impossible to economically cultivate cowpea in these zones without the application of hazardous pesticides (in most cases indiscriminately applied) which causeses high levels of pesticide residue in the grains and fodder from the crop as well as leading to high cost of production of cowpea.
Cultivar development and improvement, innovative agronomic technologies coupled with sustainable integrated pest management are the antidotes to the challenges of cowpea production for enhanced income as well as food security in the South[BM4] forest agro-ecologies. Therefore the need to develop insect and disease[BM5] tolerant/resistant varieties and sustainable and economically viable technologies for improved productivity. This is imperative because of high levels of rainfall and humidity which has made the brown blotch disease endemic as well as high resurgence of complexes of insect pests and weed infestation.
Soya bean is one of the most valuable crops in the world because it is a good source of vegetable oil and dietary protein. With the rising interest in healthy lifestyle, the demand for soya bean products in Nigeria is on the increase. However, the availability of such products in the Nigerian market is limited due to the [BM6] along the soya bean value chain from availability of improved viable seeds and production practices to improved processing and utilisation technologies. Other challenges are pests, diseases and unavailability of sufficient improved genotypes. Henc, the need to bridge the gaps along soya bean value chain for the Nigerian population.
Lima bean (Phaseoluslunatus) is one of the underutilised legumes in Nigeria which has potential to address both food and nutritional security. It is a nutritious plant containing about 23% protein and 6% fibre. It has the ability to improve soil fertility and it is well adapted to the humid rainforest environment of southern Nigeria. However, its production has almost gone into extinction amd as such, its level of utilisation is very low. This ia due to its unavailability in the market and and also the fact that it takes long to cook. bring Lima beans can however be reincorporated into the cropping system of southwest, Nigeria so as to facilitate its inclusion in the diets of the rural populace, hence the project.
Pigeon pea is a leguminous crop that is often grown as hedges int residential areas or as a cover crop in rural communities, thus it is highly underutilised as food for humans. The seed is high in protein[BM7] and can be an alternative to cowpea preparing various meals. , However, the crop has received little research attention in Nigeria in terms of crop improvement and utilisation, thus only low[BM8] yielding landraces are cultivated by the farmers. Holistic research into all the aspects of the crop will unleash the potentials , increase food alternatives and reduce food insecurity. Winged bean, a wonder legume, is a valuable source of protein, vitamins and minerals and occupies an important place in human nutrition. I It is a multipurpose crop and therefore considered as a versatile legume. Winged bean can readily serve as a substitute for soya bean. Research into this crop will provide vital information on the yield potential and would also profer ways of genetically improving it. The programme has experienced and competent scientists from various disciplines including Plant Breeding, Plant Protection, Soil Microbiology, Agricultural Extension and Economics and Food Science.
TEAM MEMBERS
GRAIN LEGUMES TEAM
Prof. O. F. Owolade
Research Professor (Plant Pathology)
Mayowa Oladipo
Plant Breeding
Adenike Oluwaseun Dada
Plant Pathology
Mr. Adedotun Daniel Adewumi
Adeyinka Kehinde Adebayo
Research Fellow (Crop Physiology)
Dr. Solomon Tayo Akinyosoye
Research Fellow (Plant Genetics)
Dr. Q. O. Oloyede-Kamiyo
Principal Research Fellow (Plant Breeder)
Dr. O. A. Aluko
Research Fellow (Agronomy Weed Science)
Dr. Olugbenga A. Egbetokun
Research Fellow (Agricultural Economics)
Dr. J. O. Amosun
Research Fellow (Weed Science)
Paul C. Ukachukwu
Plant Breeding
Prof. O. F. Owolade
Research Professor (Plant Pathology)
RECENT PUBLICATIONS
Akande, S. R., S. A. Olakojo, S. A. Ajayi, F. Owolade, J. A. Adetumbi, O. N. Adeniyan and B. A Ogunbodede (2012). Planting dates Affects Cowpea seed Yield and Quality at Southern Guinea Savanna of Nigeria. Seed Technology. 34: 51-60.
Owolade, O. F., A.G. O. Dixon., O, T. H. Idowu, S. R. Akande, S. A. Olakojo, C. G. Afolabi, P. O. Tedela, A. R. Popoola, A. Y. A. Adeoti, Enikuomehin, A. O., and F. Aduramigba-Modupe (2012). Molecular identification of Colletotrichum gloeosporioides f sp manihotis causing cassava anthracnose in Nigeria. Nigerian Journal of Genetics. 26:127-140.
Olasoji O, J, , F. Owolade, R. S. Badmus, A. A. Olosunde and O. J. Okoh (2012). Variation in germination and seed longevity of Kenaf (Herbiscus canabinus) as affected by different maturity and harvesting stages. Stored Products and Postharvest Research 3:167-173.
Akinbode, O, B. Ikotun, C. Odebode and Owolade (2015). The Use of Micro-Biological Agents at Different Pairing Times in the control of Fusarium verticillloides Pathogen of Maize (Zea mays) Submitt Journal of Agriculture, Forestry and Fishery 23:231-235
Ganiyu, A, R. Popoola, O. F. Owolade and K. A. Fatona (2017). Control of common bacterial disease of cowpea (Vigna unguiculata [L.] Walp) with certain plant extracts in Abeokuta, Nigeria. Accepted for Publication in the Journal of Crop Improvement 31:22-27.
Olowolafe M. O., S. T. Akinyosoye, J. A. Adetumbi, D. J. Ogunniyan, F. Owolade, F. B. Anjorin and A. O. Agbeleye (2014). Evaluation of Cowpea (Vignia unguicula (L.) Walp.) Using Morphological Characters. Journal of Agriculture, Forestry and the Social Science
Ganiyu, S. A., Popoola, A. R., Yussuf, T. F., Owolade, O. F. and Gbolade, J. O. (2018). Management of Anthracnose Disease of Cowpea with Three Plant Leaf Extracts for Enhanced Grain Yield in Abeokuta, Nigeria. Nigerian Agricultural Journal 49:1-7
Akinyosoye S. T. , Owolade O. F., Olowolafe M. O. and Ailenokhuria B. V. (2019). Genetically Modified Organisms (GMOs) and Recombinant DNA Technology- Benefits and Ethical Issues: A Review. Moor Journal Agricultural Research (Special Edition) 20; 80-91.
Odeyemi, O.O., Lawal, B. O., Owolade, O. F., Olasoji, J. O., Egbetokun, O. A., Oloyede- Kamiyo, Q. O., Omodele, T. and Anjorin, F. B (2020). FALL ARMYWORM Spodoptera Frugiperda (J. E. Smith) (Lepidoptera: Noctuidae): Threat to Maize Production in Nigeria. Nigerian Agricultural Journal 51; 101-108
T. H. Hamzat, S. A. Ganiyu, O. M. Obembe, A. M. Ajayi and O. F. Owolade (2021). Response of maize (Zea mays L.) cultivars to leaf blight and Curvularia leaf spot under application of Titanium dioxide in forest—savanna transition agro ecological zone of Nigeria. Archives of Phytopathology and Plant Protection, 55:8, 913-925, DOI:10.1080/03235408.2022.2074713
Oloyede- Kamiyo, Q. O., Odeyemi, O. O., and Oladipo, M. S. (2020). Performance of stem borer resistant maize inbred lines under maize weevil infestation (Sitophilus zeamais): Towards developing multiple pest resistant maize. Nigerian Journal of Plant Protection, 34 (2): 81-96.
Oladipo, M. S., Olaoye, G., Oyekunle, M., Atanda, A. and Bankole, F. (2021). Yield potential of sub-tropical maize hybrids of different maturity groups across Nigeria guinea savanna. Applied Tropical Agriculture, 26(2): 144-154.
Aluko, O. A., Adebayo, A. K., Adewumi, A. D., Oladipo, M. S. and Ukachukwu, P. C. (2022). Evaluation of Morpho-physiological Variations in Pigeon Pea for Weed Suppression and Yield Potentials in Southern Agro-ecologies of Nigeria. International Journal of Plant & Soil Science. Article no: IJPSS.87959.
Dada, A. O., Dania, V. O., Oyatomi, O. A., Abberton, M. and Ortega-Beltran, A. (2022). First report of Colletotrichum cliviicola causing anthracnose disease of cowpea (Vigna unguiculata) in Nigeria. Plant disease, 10.1094/PDIS-10-22-2512-PDN. Advance online publication. https://doi.org/10.1094/PDIS-10-22-2512-PDN
Dada, A. O., Oresanya, A., Akinyosoye, S. T., & Arogundade, O. (2022). The first report of bean common mosaic virus (BCMV) infection of African yam bean (Sphenostylis stenocarpa) in Nigeria. Molecular biology reports, 10.1007/s11033-022-07883-3. Advance online publication. https://doi.org/10.1007/s11033-022-07883-3
Akinbode O.A., Balogun M. A., Kareem K. T., Dada, A. O. and Olagunju Y. A. 2022. Effect of packaging materials and storage conditions on seed borne fungi in stored kenaf (Hibiscuscanabinnus L.) seeds. Ife Journal of Agriculture 34(2):1-18
Aluko, O. A., Oyebola, T. O., Amosun, J. O., Adewumi, A., and Oluwayemi, T. T. 2020. Spatial and temporal effects kenaf (Hibiscus cannabinus) cultivation on weed dynamics in southern agro-ecologies of Nigeria. Journal of Experimental Agriculture International 42(12): 39-47. Article no. JEAI.60028.
Adesuyi A. A., Adewumi A. D., and Elufisan, T. S. 2021. Population dynamics of Pratylenchus brachyurus in maize treated with inorganic fertilizer. International Journal of Plant & Soil Science 33(10): 12-16, 2021; Article no. IJPSS.67714
Aluko, O. A., Adebayo, A. K, Adewumi, A. D., and Oladipo, M. S., and Ukachukwu, P. C. (2022) Evaluation of morpho-physiological variations in Pigeon Pea (Cajanus cajan) for weed suppression and yield potentials in southern agro-ecologies of Nigeria. International Journal of Plant and Soil Science.Article no: IJPSS 87959.
Adebayo, A.K., Ayoola, O.T., Anjorin, F.B. and Oladehinde, T.E. (2019). Growth and Yield Performances of three Maize Varieties as Influenced by Poultry manure and Planting patterns. Journal of Agriculture, Forestry and Social Science 16(1): 1-7.
Agbeleye, O.A., Adebayo, A.K., Olayinka, R.B. and Ayoola, O.T. (2019). Evaluation of Growth and Yield Components of Lima Bean (Phaseolus lunatus L). Moor Journal of Agriculture 20: 64-71
Fasoyiro S.B., Farinde, E.O., Oyedokun, M.O. and Adebayo, A.K. (2019). Dissemination training on Pigeon Pea Utilization and Evaluation of Farmers’ Acceptability of the Products at Erin Oke, Osun State, Nigeria. Greener Journal of Agricultural Sciences 9(1):90-94.
Anjorin, F.B., Adejumo, S.A., Adediran, J.A., Adebayo, A.K, Ogunniyan, D.J. and Olanipekun, S.O. (2018). Influence of Organic and Inorganic Fertilizer Application on Yield Components of two maize varieties under Irrigation in Ibadan. African Journal of Agriculture Technology and Environment7(1):109-122.
Olanipekun, S.O., Togun, A.O., Adejumo, S.A., Adeniyan, O.N. and Adebayo, A.K. (2019). Assessment of Plant Population on Growth, Fiber and Seed yield of kenaf (Hibiscus cannabinus L.) in Ibadan, Western Nigeria. Journal of Agricultural Research and Development 18: 50-56.
Anjorin, F.B., Adebayo, A.K., Omodele, T., Adetayo, A.O. and Adediran, J.A. (2021). Role of Soil nutrient amendments in enhancing Growth and Yield performance of Quality Protein Maize grown under Water deficit stress in Ibadan. Acta Agriculturae slovencia
Olanipekun, S.O., Togun, A.O. and Adebayo, A.K. (2020). Influence of N.P.K fertilizer on Growth and Nutrient uptake of Kenaf (Hibiscus cannabinus L.) in Southwestern Nigeria. European Journal of Agriculture and Forestry Research 8(1): 16-27
Farinde, E.O., Oyedokun, M.O., Fasoyiro, S.B. and Adebayo, A.K. (2020). Sensory Evaluation and Acceptability of some elected Lima Bean Products at Erin- Oke, Osun State, Nigeria. Journal of Underutilized Legumes 2(1): 7-14
Adebayo, A.K., Ayoola, O.T., Anjorin, F.B, Ojo, A.O. and Oladeinde, T.E. (2020). Nutrient Uptake and Cowpea performance following Early Season Maize under Different Fertilizer type. Tropical and Subtropical Agroecosystem 23: 1-11.
Ayoola, O.T. and Adebayo, A.K. (2017). Maize Growth and Yield Components as Influenced by Different Sources of Organic Fertilizers. Nigeria Journal of Soil Science 27: 245-254 (Nigeria).
Akinyosoye, S.T. and Adetumbi, J.A. 2022. Biotechnology as a Tool forAgriculturalRevolutioninDevelopingNations:CurrentStatusandBottleneckinNigeria.In:AgriculturalBiotechnology,BiodiversityandBioresourcesConservationandUtilization(1sted.).Obembe,O.O.,Ekundayo,E.O.,Okoli,A.S.,Gidado,A.,Adetunji,C.O.,Ibrahim,A.B.,& Ubi,B.E.(Eds.).Taylor&Francis.pp3-11.
Akinyosoye, T. 2022. Genotype-Genotype × Environment (GGE) biplot analysis ofextra-early maturing quality protein maize hybrids for grain yield. Journal of CropScience andBiotechnology25(2):1-12(Korea)
Akinyosoye,S.T.2022.CharacterizationofAfricanyambean(Sphenostylisstenocarpa)mutant lines using phenotypic markers. Yuzuncu Yil University Journal ofAgricultural Sciences 32(3): 487-496 (Turkey).
Akinyosoye,T., Agbeleye, O.A., Adetumbi,J.A. and Ukachukwu, P.C. (2021).Selection for earliness and seed yield in mung bean accessions [Vigna radiate (L.)Wilcezk]usingREML/BLUP.PesquisaAgropecuáriaBrasileir56: e02290.DOI:https://doi.org/10.1590/S1678-3921(Brazil).
Ogunniyan, D.J., Olakojo, O.O., Akinyosoye, S.T. and Makinde, S.A. 2021. Analysisof grain yield of early maturing yellow-endosperm maize hybrids under nitrogen stressInternationalJournalofPlantBreedingandGenetics 15:24-33(USA).
Akinyosoye,S.T.2020.EffectofSodiumAzide(NaN3)onseedgerminationandcallusinduction in some maize (Zea mays L.) varieties. Nigerian Journal of Seed Science4:66-75(Nigeria).
Oloyede-Kamiyo Q.O. Efficiency of index-based selection methods for stem borerer resistance in maize (Zea mays L.). Journal of Crop Science and Biotechnology 22(3): 205-211.
Oloyede-Kamiyo, Q.O. Full-Sib versus S1 family selection methods in improvement of a Quality Protein Maize population. Applied Tropical Agriculture. (Nigeria). 24(2): 78-84.
Oloyede-Kamiyo, Q.O., Ajala, S.O. and Job, A.O. 2019. Improvement for tolerance to low soil nitrogen in a Quality Protein Maize (QPM) population: Variability and selection gains. Moor Journal of Agricultural Research 50th Anniversary Special Edition. 20 (1): 80-88.
Oloyede-Kamiyo, Q.O. and Olaniyan A.B. 2020. Varietal response to double plant population density in maize: Implications for breeding. Journal of Agricultural Science. 15(3): 387- 394.
Odeyemi O.O., Lawal B.O., Owolade O.F., Olasoji J.O., Egbetokun O.A., Oloyede-KamiyoO., Omodele T. and Anjorin, F.B. 2020. Fall Armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae): Threat to maize production in Nigeria. Nigerian Agricultural Journal. 51(1): 101-108.
Oloyede-Kamiyo Q.O., Odeyemi O.O. and Oladipo, M.S. 2020. Performance of stem borer resistant maize inbred lines under maize weevil (Sitophyllus zeamais) infestation: Towards developing multiple pest resistant maize. Nigerian Journal of Plant Protection. 34(2): 81-96.
Oloyede-Kamiyo, Q.O., Olaniyan, A.B., Abdul-Waheed, J.A. and Akinseye, B.A. 2021. Sources of tolerance to low soil nitrogen in some Striga resistant and Quality protein maize (Zea mays L) varieties. Journal of Crop Science and Biotechnology. 1007/s12892-021-00098-1.
Oloyede-Kamiyo Q.O. and Odeyemi O.O. 2021. Early detection of fall armyworm resistance source in some Tropically-adapted maize varieties in Southern Nigeria. Acta Agriculturae Slovenica. 117(2): 1-8. doi:10.14720/aas.2021.117.2.1944
Ogunfunmilayo A.O., Kazeem S.A., Idoko J.E., Adebayo, R.A., Fayemi E.Y., Adedibu O.B., Oloyede-Kamiyo, Q.O.,Nwogwugwu J.O., Akinbode, O. A., Salihu S., Goergen G. and Ofuya, I.A. 2021.Occurrence of natural enemies of Spodoptera frugiperda (Lepidoptera: Noctuidae) (Fall Armyworm) in Nigeria. PlosOne 16(7): https://doi. org/10.1371/journal.pone.0254328.
Oloyede-Kamiyo, Q.O., Lawal, B.O., Kareem K.T., Odeyemi, O.O. and Adelakun O.J.2021. Assessment of some cowpea (Vigna unguiculata L.) genotypes for quantitative and qualitative traits. Nigerian Agricultural Journal. 52(3): 222-230.
Aluko O.A., Ajijola S. and Ayodele O.P. (2017). Effect of weed control methods on profitable kenaf (Hibiscus cannabinus L) production in rainforest-savanna transition agro-ecology of Nigeria
Aluko O.A., Smith M.A.K. and Omodele T. (2018). Survey and mapping of speargrass (Imperata cylindrica (L.) Reauschel) invasiveness in two Agro-ecologies European Journal of Agriculture and Forestry Research. 6 (3): 1–10. (UnitedKingdom).
Aluko O.A. (2018). Mapping of weeds in cassava fields using geographic information systems (GIS) in Derived savanna of Nigeria. European Journal of Agriculture and Forestry Research. 6 (5): 1– 14. (UnitedKingdom)
Aluko O.A. (2019). Comparative study of herbicides for pre-emergence weed control in maize (Zea mays L.) in derived savanna of Nigeria. Journal of Experimental Agriculture International.37 (1): 1-11. (UnitedKingdom)
Aluko O.A. (2019). Efficacy of candidate herbicides for post-emergence weed control in Kenaf (Hibiscus cannabinus). Journal of Agriculture and Ecology Research International. 19 (3): 1 – 7. (UnitedKingdom)
Aluko O.A. and Anjorin F.B. (2019). Kenaf morpho-physiological variations and responses to weed pressure in derived savanna agro-ecology of Nigeria. Journal of Agriculture and Ecology Research International. 20 (3): 1-9. (UnitedKingdom)
Aluko O.A., Oyebola T.O., Amosun J.O., Adewumi A. and Oluwayemi T.T (2020). Spatial and temporal effects of kenaf (Hibiscus cannabinus) on weed dynamics in southern agro-ecologies of Nigeria. Journal of Environmental Agriculture International. 42(12): 39-47. (UnitedKingdom)
Amosun J.O., Aluko O.A. and Ilem D.O. (2021): Comparative effect of weed control methods on Mexican sunflower (Tithonia diversifolia) in maize. African Journal of Plant Science 15(4):115-122. (Kenya)
Ayodele O.P., Aluko O.A. and Adegbaju O.D. (2021): Effects of catnip (Nepetacataria ) and Mexican sunflower (Tithonia diversifolia L.) density on growth, yield and proximate composition of Jute mallow (Corchorus olitorius L.) Plant varieties studying and protection 17(2): 155 – 163.
Aluko O.A., Amosun J.O., Adetayo A.O. and Dauda T.O. (2022): Speargrass [Imperata cylindrica (L.) Raeuschel] growth in relation to season, rainfall and temperature patterns of southern agroecologies of Nigeria. International Journal of Plant and Soil Science 34(3):1-9. (UnitedKingdom)
Egbetokun O. A., Shittu, B. A. and Ayoade, M. O. (2017): Determinants of Market Participation among Maize Farmers in Ogbomoso Zone, Oyo State, Nigeria. Cercetari AgronomiceVol. L, No 1 (169): 109-118 (Romania)
Egbetokun, O. A. (2016): Crop Farming Households’ Market Participation in Major Food Markets in Southwestern Agricultural Zone of Nigeria. Moor Journal of Agricultural Research 17: 94-103 (Nigeria)
Amao, I. O. and Egbetokun, O. A. (2017): Market Participation among Vegetable Farmers. International Journal of Vegetable Science24(1): 3-9. (United State of America)
Olasoji, J. O. and Egbetokun, O. A. (2017): Assessment of Farmers’ Save Seed and Improved Seed on Maize Productivity in South Western, Nigeria. Journal of Experimental Agriculture International 18(3): 1-7. (United State of America)
Egbetokun O.A., Ajijola S., Awolola, O. A. and Awoyemi, D. O. (2018): Economic Evaluation of Maize Intercropped with Some Major Food Crops in South Western Nigeria. Cercetari Agronomice LI No 4 (176): 27-35 (Romania)
Egbetokun, O. A. and Awoyemi, D. O. (2019): Determinants of Banking Behaviour among Rural Households in Ibarapa East Local Government of Oyo State. Moor Journal of Agricultural Research 20 (2): 198-205 (Nigeria)
Egbetokun O.A., Shittu B.A.and Ayoade M.O. (2017): Determinats of market participation among maize farmers in Ogbomoso Zone, Oyo State Journal of cercetariAgronimice L169: 109-118 (Romania)
Odeyemi, O.O., Lawal, B. O., Owolade, O. , Olasoji, J. O., Egbetokun, O. A., Oloyede- Kamiyo, Q. O., Omodele, T. and Anjorin, F. B. (2020): Fall Armyworm Spodoptera Frugiperda (J. E. Smith) (Lepidoptera: Noctuidae)Threat to MaizeProduction in Nigeria. Nigerian Agricultural Journal 51 (1): 100 - 108 (Nigeria)
Egbetokun, O. A. and Fraser, C. G. C. (2020): Factors Influencing Food Consumption Diversity Among Farming Households in Selected States in Southwestern Nigeria. African Journal of Food,Agriculture, Nutrition and Development 20 (5): 16325-16342
Egbetokun, O. A. and Oloyed-Kamiyo, Q. O. (2020): Economic and Yield Assessment of Maize Varieties under Recommended and Double Plant Population Densities. AmericanJournal of Environmental Science and Engineering 4 (3): 31-35 (United State of America)
Olakojo, S. A., Dauda, T., Makinde, J. O. and Ogundiya, M. O. (2011). Development of synthetic maize varieties (Zea mays) tolerant to Striga lutea (Lour) infestation. NigerianJournal of Genetics 25: 47-59.(Nigeria)
Aluko O.A., Smith M.A.K., Olasoji J.O., Amosun J.O., Olayiwola L.O, Adeniyan N.O. and Kareem K.O. (2013). Effect of pendimethalin and its atrazine mixture on weeds and jute (Corchorus olitorius) seed. International Journal of Agriculture and Agricultural Sciences Vol 1 (1): 1-8. (USA)
Takim, F.O., Fadayomi, O., Ekeleme, F., and Amosun, J.O. (2013). Relationship between the soil seedbank and weed population as influenced by land use intensity in southern Guinea savanna of Nigeria. Nigerian Journal of Agriculture, Food and Environment 9 (3): 36-41. (Nigeria)
Takim, F.O., O. Fadayomi, O.Amosun, and F. Ekeleme (2013). Influence of land use intensity and weed management practice on field emergence, characterization and growth of weeds in Southern Guinea savanna of Nigeria. Journal of Agricultural Research & Development 12 (2): 13-32 (Nigeria)
Amosun, J. O., Aluko, O. A., and Adeniyan (2015). Effect of weed management strategies on maize yield. International Journal of Agriculture and Agricultural Science 2 (1): 18-20. (UK)
Amosun, J. O. and V. O. Aduramigba-Modupe (2016). Influence of groundnut populations on weed suppression in cassava-groundnut systems. Journal of Agricultural Science 8 (5): 72-78. (Canada)
Amosun, J. O., Ayeni, A. O., Tijani-Eniola, H. and B. A. Majek (2016). Influence of tillage on herbicide efficacy in maize in southwestern Nigeria. Nigerian Journal of Weed Science 29: 41-55.
Aluko O. A., Oyebola T. O., Amosun J. O., Adewunmi A. and T. T. Oluwayemi (2020). Spatial and temporal effects of kenaf (Hibiscus cannabinus L.) cultivation on weed dynamics in southern agro-ecologies of Nigeria. Journal of Environmental Agriculture International 42 (12): 39-47.
Amosun J. O., Aluko O. A. and D. O. Ilem (2021). Comparative effect of weed control methods on Mexican sunflower (Tithonia diversifolia) in maize. African Journal of Plant Science 15 (4): 115-122.
Aluko O. A., Amosun J. O., A. O. Adetayo and T. O. Dauda (2022). Speargrass [Imperata cylindrica (L.) Raeuschel] growth in relation to season, rainfall and temperature patterns of southern agro-ecologies of Nigeria. International Journal of Plant and Soil Science 34 (3): 1-9.
Aluko, O. A., Adebayo, A. K, Adewumi, A. D., and Oladipo, M. S., and Ukachukwu, P. C. (2022) Evaluation of morpho-physiological variations in Pigeon Pea (Cajanus cajan) for weed suppression and yield potentials in southern agro-ecologies of Nigeria. International Journal of Plant and Soil Science.Article no: IJPSS 87959.
Idehen E.O., Ukachukwu P.C., Showemimo F.A. (2021) Selection indices for fruit yield improvement in elite cucumber (Cucumis sativus L.) cultivar. Acta Horticulturae et Regitectuare. 24(2): 89-95
Akinyosoye S.T., Adetumbi J.A and Ukachukwu P.C. (2021).Impact of sodium azide on maturity, seed and tuber yields in M1 African yam bean [Sphenostylis stenocarpa (Hochst ex A. Rich)Harms] generation. Journal of Tropical Agriculture. Vol 98(1): 16-27.
Akinyosoye S.T., Agbeleye A., Adetumbi J.A and Ukachukwu P.C. (2021). Selection for earliness and seed yield in mung bean accessions using REML/BLUP. Pesquisa Agropecuaria Brasileira. 56(1):2021
Ukachukwu P.C., Idehen E.O., Showemimo F.A., Hammed L.A., Abdul-Rafiu A.M. (2019). Agro-morphological character studies and their contribution to variation in selected cucumber (Cucumis sativus) varieties. Nigerian journal of Horticultural Science. 24(2) Page 132-141
Ikoro I.J., Idehen E.O., Ibitoye D.O., Anyaoha C.O., Oguntolu O.O., Okoyo M.E., Ukachukwu P.C., Lukman F.B., Ukpong M.E. (2019). Estimates of genetic variation for agromorphological and yield traits of some pepper (Capsicum anuum) Accessions. Nigerian journal of Horticultural Science. Volume 24 (Issue 30) Page 124-131
Ikoro I.J., Idehen E.O., Oguntolu O.O., Onyeanusi H.C., Nweke U.C, Igbegwu F.C., Ukachukwu P.C., Ajoba F.B., Oladokun E.O., Uwanaka C.E., Orija A.A. (2021). Variability evaluation of qualitative traits among okra (Abelmoschus esculentus (L.)Moench) genotypes in south west Nigeria. Proceedings of the Annual Conference of Horticultural Society of Nigeria (HORTSON). CRIN 2021. PP 726-732.
Anyaoha C.O., Ikoro I.J., Okoyo M.E., Oguntolu O.O., Ukachukwu P.C., and Oladokun E.O. (2019). Genetic diversity among three okra (Abelmoschus esculentus) breeding populations in Nigeria. Proceedings of 43rd annual conference of Genetic Society of Nigeria. Page 315-319
Ikoro I.J., Idehen E.O., Anyaoha C.O., Okoyo M.E., Ukachukwu P.C (2018). Preliminary Characterisation of selected Pepper (Capsicum annum L.) genotypes in South West Nigeria. Proceedings of the Annual Conference of Horticultural Society of Nigeria, Lafia 2018. Page 11-15