Preprint and Postprint Journal Articles

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

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    ADOPTION OF IMPROVED SORGHUM VARIETIES IN THE NORTH -WEST ZONE OF NIGERIA
    (1998) Atala, T.K.; Macaver, O.J.; Aba, D.A.
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    APPLICATION OF SCIENCE AND TECHNOLOGY FOR INCREASED AGRICULTURAL PRODUCTION FOR ECONOMIC EMPOWERMENT AND SELF-SUFFICIENCY IN KADUNA STATE"
    Aba, D.A.
    The focus of this paper is to examine how science and technology can be employed in order to increase agricultural productivity in Kaduna State. An attempt was made to identify the factors militating against farmers achieving optimum output in their farming enterprises and how to overcome these factors. It also look at the utilization of the increase agricultural produce by industrial processors within and outside the State for economic empowerment and self sufficiency
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    ASSESSMENT OF SORGHUM GENOTYPES FOR RESISTANCE TO FOLIAR ANTHRACNOSE (COLLETOTRICHUM GRAMINICOLA) UNDER FIELD CONDITIONS
    (2002) Marley, S. C.; Aba, D.A.
    One hundred and fifty nine (159) sorghum genotypes from the International Crop Research Institute for the Semi-Arid Tropics (ICRISAT), West African National Agricultural Research Systems (NARS) and local collections were evaluated at Samaru, Nigeria for resistance to foliar anthracnose under field conditions during the 1996, 1997 and 1998 wet seasons. Disease reaction was observed six weeks after planting and disease severity assessed when plants had reached physiological maturity using a 1-9 visual rating scale. Results show that 42 genotypes showed resistant reaction while 20 and 97 genotypes showed moderately resistant and susceptible reactions respectively. Resistant genotypes included 14 ICRISAT sorghum varieties (ICSV), 4PB lines, 8 IS lines, 5 West African NARS lines, 2 SAMSORG varieties, 3NR varieties and 6 local varieties. Results herein indicate the availability of germplasm with stable resistance to foliar anthracnose. The need for assessment of these germplasm for panicle anthracnose resistance is highlighted.
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    ASSESSMENT OF SORGHUM GENOTYPES FOR RESISTANCE TO FOLIAR ANTHRACNOSE (COLLETOTRICHUM GRAMINICOLA) UNDER FIELD CONDITIONS
    (2002) MARLEY, P.S.; Gupta, S. C.; Aba, D.A.
    One hundred and fifty nine (159) sorghum genotypes from the International Crop Research Institute for the Semi-Arid Tropics (ICRISAT), West African National Agricultural Research Systems (NARS) and local collections were evaluated at Samaru, Nigeria for resistance to foliar anthracnose under field conditions during the 1996, 1997 and 1998 wet seasons. Disease reaction was observed six weeks after planting and disease severity assessed when plants had reached physiological maturity using a 1-9 visual rating scale. Results show that 42 genotypes showed resistant reaction while 20 and 97 genotypes showed moderately resistant and susceptible reactions respectively. Resistant genotypes included 14 ICRISAT sorghum varieties (ICSV), 4PB lines, 8 IS lines, 5 West African NARS lines, 2 SAMSORG varieties, 3NR varieties and 6 local varieties. Results herein indicate the availability of germplasm with stable resistance to foliar anthracnose. The need for assessment of these germplasm for panicle anthracnose resistance is highlighted
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    Biochemical Evaluation of Ten Sorghum (Sorghum bicolor Cultivars Compared to Wheat for Baking Characterise,s
    (2000) Abu, A. I.; Aba, D.A.; Chindo, P.S.; Anigo, K.M.; Maigida, D.N.
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    EFFECT OF NAPHTHALENE ACETIC ACID (NAA) ON IN VITRO ROOTING OF REGENERATED MICROSHOOTS OF GROUNDNUT (ARACHIS HYPOGAEA L.)
    (2012-12) Abdulmalik, M.M; Usman, I.S; Olarewaju, J.D.; Aba, D.A.
    Successful utilization of tissue culture for the improvement and conservation of groundnut will be made possible only with an efficient shoot proliferation, formation of well-developed root system in microshoots, successful acclimatization and final establishment in field. A regeneration protocol ensuring a high frequency rooting of microshoots derived from embryonic axes of four groundnut genotypes was achieved using naphthalene acetic acid (NAA). Microshoots of 3cm length were subcultured on Murashige and Skoog (MS) medium plus 30% sucrose, supplement with 1.0 or 1.5mg/L NAA and compared with a hormone free medium (control). Rooting was significantly influenced by the presence and concentration of NAA. Microshoots subcultured in medium supplemented with 1mg/L NAA rooted within 2weeks of subculture, producing the highest number of roots/plantlet and root-induction frequency. However, increasing the concentration of the auxin suppressed root length with the hormone free medium having the longest roots. Significant genotypic effect was also observed, with Samnut 22 having more number of roots/plantlet and root-induction frequency.
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    RELEASE OF FOUR SORGUM VARIETIES AND FOUR NEW SORGUM HYBRIDS BY IAR
    Aba, D.A.; showomino, F.A; Gufta, S.C
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    SORGUM
    Aba, D.A.