Browsing by Author "Gado A.A."

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DISTRIBUTION AND DIVERSITY OF COWPEA GERMPLASM IN NIGER STATE
(Genetic Society of Nigeria, 2023-03-26) Yusuf S.; Gado A.A.; Daudu O.A.Y.; Abubakar A.; Audu M.A.I; Nasir Z.A.
Biodiversity loss have emerged as bottleneck befalling the agricultural production including cowpea. Rising insecurities, socio-economic changes, abnormal onset and cessation of rainfall and soil conditions has led to a dramatic reduction of cowpea landraces cultivated recently and probably to the disappearance of local populations. Germplasm exploration is the basis for crop improvement and foundation of agricultural production. This study was designed to evaluate the distribution and diversity of cowpea germplasm using seeds morphology. The study was conducted between the months of November to December 2021. A total of 43 germplasm was collected. The germplasms were randomly collected across the three Geopolitical zones of Niger state. The data was collected using participatory research tools and techniques such as direct observation, group discussions, individual interviews, field visits and questionnaires. The results revealed that Vigna unguiculata. Vigna unguiculata recorded the highest accessions (39), followed by Vigna angularis (1), Vigna mungo (2), Vigna radiata (1). Vigna unguiculata showed the highest occurrence in most parts of the three geopolitical zones while Vigna angularis and Vigna radiata were found in Zone A), Vigna mungo were found in Zone A and zone B. Zone A had the highest germplasm accessions (22), zone C (13). Zone B (8). This result showed an uneven distribution of the species of cowpea and this could be as a result of the increasing insecurity ravaging some parts of the state. There by promoting the movement of the farmers from one area to another. Hence germplasm collection can serve as means of conserving crop diversities from total loss.
Studies on soil physico-chemical properties and biochemical composition of selected vegetables collected from locally irrigated farmland with municipal wastewater in Minna, Niger State, Nigeria
(Brill, 2023-05-28) Gado A.A.; Salihu I.A.; Audu M.A.I; Abubakar A.L.; Daudu O.A.Y.; Salihu M.A.
Vegetables have become an indispensable part of human nutrition. This study aimed at analyzing the biochemical compositions of three leafy vegetables (Corchuorus olitorius, Telfairia occi dentalis and Spinacia oleracea) collected from local farm irrigated with municipal wastewater. The biochemical parameters were assayed following standard laboratory protocols. Results revealed significantly (P < 0.05) higher Ca (207.33 mg/kg) and Mg (182.53 mg/kg) contents in wastewater with Mg contents in both clean water (72.80 mg/kg) and wastewater (182.53 mg/kg) exceeding the FAO safe limits. The wastewater had significantly (P < 0.05) higher (Fe) and (Cd) contents (1.72 and 0.42 mg/kg), than clean water from the modern farm (0.67 and 0.13 mg/kg). Both water samples had heavy metals, exceeding the FAO safe limits. The Mn, Fe and Pb contents determined in the three vegetables collected from both farms were within FAO safe limits except Cd content which ranged from 0.05–0.87 mg/kg which is above FAO acceptable limits of 0.02 mg/kg. Results on mineral composition revealed significantly higher (P < 0.05) Na, K, Ca and Mg contents in the three vegetables collected from the local farm, Telfairia occidentalis having the highest Na (123.33 mg/ kg), K (6500 mg/kg) and P (6.19 mg/kg) while, Corchuorus olitorius had the highest Ca (2.15 mg/kg) and Mg (2.12 mg/kg). The result of this study shows that municipal wastewater irrigation could be utilized in improving the mineral compositions of leafy vegetables. However, it is highly recommended that the wastewater is treated properly to avoid heavy metal contamination
Yield Attributes and Biochemical Compositions of Elites and Landraces of Pigeon Pea [Cajanus cajan (L.) Millsp]
(NCRI Press, 2023-12-30) Daudu O.A.Y.; Falusi O.A.; Abubakar A.; Gado A.A.; Dangana M.C.; Audu M.A.I; Adebimpe Y.A.
Cajanus cajan (L.) Millsp (Pigeon pea) is an important leguminous crop grown mostly in the tropical regions of the world, Nigeria inclusive. The crop is still underutilised in Nigeria; the potentials of the crop in terms of yield traits and biochemical compositions, with ability of enhancing food security and preventing over-dependent on very expensive animal protein, is yet to be fully exploited. It was based on this premise that this study was designed. Twenty-five (25) accessions were obtained from International Institute of Tropical Agriculture, lbadan; National Centre for Genetic Resources and Biotechnology, Ibadan and Local farmers in Oyo state, Nigeria. The accessions were sown in the experimental farm in a Randomised Complete Block Design (RCBD) with three replicates. Standard procedures were followed for determination of yield parameters as well as biochemical compositions. It showed that NG/SA/11/08/108 produced the highest number of pods per plot (437.00) and the highest grain yield (2.6t/ha). Similarly, TCC-8126 produced the highest crude protein (22.53 %) while PG/OY/18/002 had the highest carbohydrate contents (52.22 %). TCC-8126 was the best elite genotype in terms of amino acid profile, containing glutamic acid (18.10 %), aspartic acid (11.4 %); arginine (7.41 %), alanine (5.90 %). The values produced for both nutritional compositions and amino acid profiles were within the recommended standard limits set by Food and Agriculture Organisation and United States Department of Agriculture. NG/SA/11/08/108, NG/AO/MAY/09/021/02, TCC-151, TCC-8126, TT-8129 and TCC-2 have been selected as promising genotypes that could serve as breeding lines for future breeding programme of Cajanus cajan in Nigeria.