Preprint and Postprint Journal Articles

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Browsing Preprint and Postprint Journal Articles by Author "ABA, D.A."

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    CHARACTERIZATION OF SOME RELEASED SORGHUM VARIETIES AND FOR FOOD AND INDUSTRIAL UTILIZATION IN NIGERIA
    (2005) ABA, D.A.; ABU, E.; CIUNDO, P.S.; MARLE, P.S.; MAIGIDA, D.N.; OGUNGBILE, A.O.
    Seven sorghum varieties and three sorghum lines were analysed for their biochemical composition, effect of malting time on cold water extract (CWE %}, malting loss. Sumsorg-3, Samsorg-7, Samsorg-41. SRN 4841, Samsorg-38, SSV 98001, NR 71168 and NRL 3 had protein content above 12%. SRN 4841 had the highest carbohydrate of 85.30. SRN 4841 gave highest cold water extract (CWE %) of 103.62% at day 6, There was significant (0.05) correlation between days to flowering and carbohydrate (r = 0.37). Plant height showed negative correlation to protein content. Yield was negatively significantly correlated to protein content (r = -0.545). Some of the sorghum varieties have been identified to be useful as nutritious source of food and for use in the malting industry.
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    GENETIC VARIABILITY IN PLANT TYPES' OF SORGHUM {Sorghum bicolor (L.) MOENCH) DERIVED FROM GAMMA-RAY IRRADIATION
    (2002-09-09) ABA, D.A.; ALABI, S. O.
    Variability was created in an improved sorghum variety SK 5912 using gamma-ray irradiation (Cobalt source) 60 Co. The Mo seeds were advanced to My and from the M3 family selections were made of 34 lines based on medium height, disease free plants and good yields. These were advanced to M4 family lines. The M4 families were harvested and threshed and were divided into three equal portions for evaluation. The materials were evaluated in the Institute for Agricultural Research Farms for three years (1989, 1990 and 1991). The objective was to determine the variations resulting from the gamma-ray irradiation using the multivariate analysis procedure of factor analysis. Fhenotypic correlations were computed for the individual and combined years using the component, of variance and convariances. Principal component analysis , procedure was used to extract factors (TC) that account for the variations in the plant types of sorghum using the twenty two characters evaluated. In 1989 non-reproductive structures (II) photosynthetic) accounted for 5.75% of the total variations in F,, I" leaf sheath, Td intcrnode length, accounted for 2.24% of the total variation in F2. In 1990, the same nonreproductive structures (12) accounted for 5.51% of the total variations in F,, and only the lengths of leaf blades accounted for 2.72% of the variations in F2. In 1991 the lengths of five internodes accounted for 2. 75% of variation in F, while only lengtlis of the four leaf blades accounted for 2.25% of variations in F2. In the combined component analysis lengths of five internodes accounted for 4.96% of the total variation in F,, while lengtlis of three leaf blades, grain wt/spikelet and Days to 50% flowering accounted for 2.60% of the variation in F2. These results are useful in identifying the characters that give much variations and are correlated to the yield attributes, to be selected for in order to improve yield in the plant types, using recurrent selection procedure.
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    GENOTYPE x ENVIRONMENT IN SORGHUM {Sorghum bicolor (L.) Moench) TRIAL
    (1995-09) ABA, D.A.; SHOWEMIMO, F.A.; YEYE, M.
    The results obtained from four locations for three year testing of seven lines (genotypes) were used to estimate genotype x year, genotype x location and genotype x year x location interactions for sorghum yield trials. The three main effects (years, locations and genotypes) and their interactions were highly significant (P = 0.01), thus indicating differential genotype response to the environments used. The variance components were relatively small with the second order interaction variance component larger than the first order types involving genotypes. Environmental variance was larger than the interaction variances. Computation of theoretical standard error for cultivar (genotype) means suggest that four replications, six locations and two years is an ideal testing procedure for sorghum in term of cost and time
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    VARIABILITY IN HOST PLANT RESISTANCE OF SORGHUM TO STRIGA HERMONTHICA INFESTATION IN WEST AFRICA
    (2013-10) MARLEY, PAUL S.; TOURE, ABOUBACAR; SHEBAYAN, J.A.Y; ABA, D.A.; TOURE, A.O.; DIALLO, A.G; KATILE, S.O.
    Nigeria and Mali. Results showed that many of the lines especially MALISOR 84-1, SAMSORG 41, 97-SBF5DT- 64 (Keninkcdie) and the check SRN 39 remained resistant to Striga in all locations with low emerged Striga counts, while SAMSORG 14 had the highest Striga infestation in all locations. Considerable variation in reaction to Striga infestation was observed on Seguetana, 97-SB-F5DT-63 (Wasa), 97-SB-F5DT-65, CMDT 38, CMDT 39 and CMDT 45 which were susceptible lo Striga at Samaru, Nigeria but were resistant to Striga at both locations in Mali. Based on low Striga resistance and high grain yield, lines MALISOR 84-1, SAMSORG 41, 97-SB-F5DT-64, 97-SB-F5DT-65, CMDT 39 and SAMSORT 14 have been nominated for wider evaluation across more West African countries.
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