The IITA Bibliography digital repository system captures, stores, indexes, preserves, and distributes digital research material. http://biblio1.iita.org:8080 2026-07-20T04:24:52Z 2026-07-20T04:24:52Z Babalola, E. Oladejo, R. https://hdl.handle.net/20.500.12478/8685 2025-05-15T15:19:53Z 2023-11-01T00:00:00Z

Transforming Agrifood Systems in West and Central Africa (TAFS-WCA): guidelines for community engagement for introducing climate-resilient crop varieties, enhancing adoption of improved crop management practices, and setting up small and medium-scale enterprises Babalola, E.; Oladejo, R.

2023-11-01T00:00:00Z Oguuniyi, Q.A. Ogbole, O.O. Akin-Ajani, O.D. Ajala, T.O. Liu, Q. Apriyanto, A. Odeku, O.A. Fettke, J. Oyatomi, O. Abberton, M. https://hdl.handle.net/20.500.12478/8684 2025-05-15T14:46:31Z 2023-11-03T00:00:00Z

Carbohydrate profiling of different accessions of three underutilized legumes: a potential source of valuable nutraceuticals and pharmaceuticals Oguuniyi, Q.A.; Ogbole, O.O.; Akin-Ajani, O.D.; Ajala, T.O.; Liu, Q.; Apriyanto, A.; Odeku, O.A.; Fettke, J.; Oyatomi, O.; Abberton, M. Carbohydrates are significant components of legumes, and their profiling can provide information about their nutritional value and potential health benefits. This study explores the proximate composition and carbohydrate profiles of accessions of three underutilized legumes, namely, Vigna radiata, Vigna mungo, and Macrotyloma uniflorum. The total starch and soluble sugar are determined. Starch granule morphology and diameter are determined using scanning electron microscopy and chain length distribution of amylopectin is analyzed using Capillary Electrophoresis. All accessions of the legumes vary both in their proximate composition and carbohydrate components. Accessions of M. uniflorum (PI-658594-01-SD) have the highest carbohydrate component (7.6%) while V. radiata (TVR-42) has the least (4.2%). Macrotyloma uniflorum accensions (PI-658594-01-SD, and PI-180437-01-SD) have the highest starch and sucrose contents, while V. mungo accensions (TVM-13, and TVM-11) have the lowest. The glucose and fructose contents are lower than sucrose in all the accessions of the legumes. Macrotyloma uniflorum accensions exhibit larger granules while accessions of Vigna species have the smallest granules. All species accessions exhibit similar amylopectin chain length distribution profiles although accessions of V. mungo slightly differ in their proportion of long and short glucan chains. The three species of underutilized legumes exhibit unique characteristics which make them suitable for consumption and may be exploited as a source of nutraceuticals and pharmaceuticals.

2023-11-03T00:00:00Z Bitire, T.D. Abberton, M. Tella, E.O. Edemodu, A. Oyatomi, O. Babalola, O.O. https://hdl.handle.net/20.500.12478/8683 2025-05-15T11:26:37Z 2023-09-26T00:00:00Z

Impact of nitrogen-fixation bacteria on nitrogen-fixation efficiency of Bambara groundnut [Vigna subterranea (L) Verdc] genotypes Bitire, T.D.; Abberton, M.; Tella, E.O.; Edemodu, A.; Oyatomi, O.; Babalola, O.O. Nitrogen fixation by bacteria is essential for sustaining the growth, development, and yield of legumes. Pot experiments were carried out at the International Institute of Tropical Agriculture (IITA) in the glasshouse between August to December 2018/2019 cropping season in Ibadan, Nigeria. Field studies were also performed in two different agroecological zones, “Ibadan and Ikenne” between August and December of 2019/2020 cropping season. The studies were set up to determine the potential of nitrogen-fixation bacteria strain inoculation on the nitrogen-fixation potential of 10 Bambara groundnut (BGN) genotypes, namely, TVSu-378, TVSu-506, TVSu-787, TVSu-1,606, TVSu-1,698, TVSu-1739, TVSu-710, TVSu-365, TVSu-475, and TVSu-305. The strains were inoculated as a broth to seedlings of each BGN genotype in the pot experiment. While six seeds from each BGN genotype were coated with each of the following nitrogen-fixation bacteria (Bradyrhizobium japonicum strains), FA3, USDA110, IRJ2180A, and RACA6, nitrogen fertilizer (urea, 20 kg/ha) was applied as a check to the nitrogen-fixation bacteria to seedlings of BGN genotypes 2 weeks after planting in both glasshouses and fields. Uninoculated plants served as controls (zero inoculation and zero fertilization). The field experiments were arranged in Randomized Complete Block Design (RCBD), while the glasshouse experiments were arranged in Complete Randomized Design (CRD) in triplicate. The result gotten showed that higher nodule numbers and weight were recorded in TVSu-1739 and TVSu-475 in both locations and seasons compared to other genotypes; the highest nitrogen fixed values were recorded among BGN genotypes TVSu-1739, TVSu-1,698, TVSu-787, TVSu-365, TVSu-305, TVSu-710, and TVSu-1,606, with a range of (62–67 kg ha−1), and were mostly enhanced by RACA6 and USDA110 strains compared to other strains that were used.

2023-09-26T00:00:00Z Bitire, T.D. Abberton, M. Oyatomi, O. Babalola, O.O. https://hdl.handle.net/20.500.12478/8682 2025-05-15T10:32:38Z 2023-03-27T00:00:00Z

Yield response of accessions of Bambara groundnut (Vigna subterranea (L) Verdc) inoculated with Bradyrhizobium japonicum strains Bitire, T.D.; Abberton, M.; Oyatomi, O.; Babalola, O.O. Field experiments were conducted in two different agroecological locations of Ibadan and Ikenne in Nigeria from August through December during the 2019 and 2020 cropping seasons. The studies were set up to reduce reliance on inorganic nitrogen fertilizer and to embrace the use of nitrogen-fixing bacteria to improve legume production to increase farmers' output and profitability. Ten accessions of the Bambara groundnut (BGN) were used in the trials. Seeds of each BGN accession were coated with each of the following Bradyrhizobium japonicum strains (B. japonicum): FA3, RACA6, USDA110, and IRJ2180A before planting. Furthermore, Nitrogen (N) fertilizer (20 kg/ha, urea) was applied to seedlings without inoculation, and uninoculated seedlings (without inoculation and without fertilization) served as control. The experiment was, therefore, a factorial arrangement (10 BGN accessions, 4 B. japonicum strains, N fertilizer application, and an uninoculated control). The yield and yield components of the inoculated BGN accessions were significantly enhanced at both agroecological locations and seasons. Among the B. japonicum strains used for inoculation, RACA6 strains significantly enhanced the yield and yield component of TVSu-1698 than other inoculated BGN accessions with a mean value of 6,234 ± 87 kg ha−1 recorded in both locations and seasons, compared to the result obtained in the combination of TVSu-1698 with N fertilizer with a mean value of 3,264 ± 943 kg ha−1. By using TVSu-1698 with RACA6 strain, farmers can get 85% more yield than on average with other genotypes/strains combination, while an average yield of 60% could be obtained by farmers using N fertilizer application.

2023-03-27T00:00:00Z