Browsing by Author "Anadi, A.C."

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    Effects of Allelochemical of Jatrophacurcas L. Leachate on Germination and Rooting of Four (4) Pepper (Capsicum) Species
    (Department of Biological Science, Nasarawa State University, Keffi, 2020-09-03) Ubazi, C.C.; Abdulkarim, B.M.; Yahaya, S.A.; Sani, M.H.; Aliyu, R.H; Anadi, A.C.
    A study was carried out on the effect of allelochemicals of Jatrophacurcas L. on germination and rooting of four pepper species (Capsicum spp) in the Department of Plant Science and Biotechnology Laboratory, Nasarawa State University Keffi, Nigeria. Data was collected on percentage inhibition and shoot length. Results generatedfrom the study showed that there were significant differences among the values of treatments (4%, 8%, 12%, 16% and 20%) and the control (0%) and within the treatments at P ≤ 0.05 level of significance. Eventually all the test samples were said to be affected by various sort of range of concentrations of the aqueous extracts and the most obvious (i.e most significant) effect was at 12%, 16% and 20% concentrations of the extracts in all species respectively. Germination and early rooting were retarded (delayed) completely at higher concentrations in virtually all the cases when placed in comparison with the control sample. The inhibitory (retardation) effect was seen to be relyon concentration and may also be due to the presence of water soluble allelochemicals like phenols, tannins and azelaic acid.
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    GENETIC VARIABILITY IN MINERAL COMPOSITION AMONG DIFFERENT STRESS TOLERANT MAIZE (Zee mays L.) GENOTYPES IN KEFFI, NASARAWA STATE
    (Department of Plant Science and Biotechnology, Nasarawa State University Keffi, 2020-01-14) Anadi, A.C.; Onovo, J.C.; Joshua, Alanana Abu ; Idris, A.
    Genetic variability m mineral composition among different stress tolerant maize genotypes was carried out. Thirteen genotypes and two local checks (control) were evaluated in randomized complete block design (RCBD) with three replications. The twelve agronomic characters studied were plant height, ear per plant, anthesissilking interval, days to pollen, days to silking, days to maturity, number of cob per plant, leave length, Zinc, Magnesium, and grain yield. The result obtained from the analysis of variance for all the agronomic traits studied showed significant differences among all the genotypes at (P < 0.01). The highest mean value for zinc was seen in SAM 15 (3.39 mg/kg), followed by SAM 24 (3.26 mg/kg) and L2 (control) (3.16 mg/kg). The least mean value for zinc was found in SAM 37 (2.25 mg/kg). The highest mean values for magnesium was found in LI (control) (6.53 mg/kg), followed by SAM 38 (6.48 mg/kg) and SAM 15 and L2 (control) (6.45 mg/k0). The least mean value was found in SAM 46 and SAM 37 (5.98 mg/kg). The mean performance for Iroi. :!'owed there was significant difference between the genotypes. SAM 48 had the highest mean value (8.35 mg/kg; for iron, followed by SAM 26 (4.05 mg/kg) and SAM 46 (3.83 mg/kg). SAM 24 had the least mean value (2.09 mg/kg). Correlation studies revealed Magnesium to be positive and significantly correlated zinc (r = 0.52). Number of cub per plant was positively correlated to ear per plant (r = 1.00) while ear per plant was significant and negatively correlated to zinc (r = - 0.381) and magnesium (r = -0.341). The results from this research have shown that high genetic variability exist with regards to mineral composition and this warrant effective selection for further improvement. The results from the broad sense heritability estimates for the 12 characters studied showed that all the characters are heritable with values range from 69.11 for leaf length to 100.00 for zinc, magnesium and iron. The information presented in this research should be of value to nutritionists. This paper thus recommend that SAM 48 be giving to children because of its iron content.
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    Moulds Associated with Deterioration of Mango (Mangifera indica L.) and Proximate Analysis of Infected Fruits in Keffi, Nasarawa State, Nigeria
    (Department of Plant Science and Biotechnology, Nasarawa State University Keffi., 2020-09-03) Anadi, A.C.; Abdulkarim, B.M.; Aliyu, R.H.
    A study was carried out on moulds associated with deterioration of mango fruits and proximate analysis of infected fruits in Keffi, Nasarawa State. The disease survey covered four locations in Keffi. The locations include; Keffi Market, FMC Round about, Angwan Lambu and High Court. The four locations were visited four times and a total of 64 mango fruits were collected and sampled. Forty two (42) fruits were infected with different fungal diseases while twenty two (22) were free from fungal infection. The fungal species isolated and identified were Aspergillus niger, Aspergillus oryzae, Mucor hiemalis and Rhizopus stolonifer. Their frequencies of occurrence were 28.57%, 23.81%, 23.81% and 23.81% respectively. FMC Round About and High Court has the highest frequency of occurrence (18.75%) and Angwan Lambu has the least occurrence (12.50%). There was no significant difference (P<0.05) in the incidence of different isolates in relation to locations. Analysis of the nutritional contents of infected mango fruits showed increase in the moisture content and reduction in crude fibre, crude ash, crude protein and crude carbohydrates level compared with uninfected fruits. The result for pathogenicity test showed that Aspergillus niger was the most virulent, while Mucor hiemalis was the least virulent or may be mere contaminate. Consumption of deteriorated mango fruits should be avoided because of the health implication of swallowing these fungal isolates.