Doctor of Philosophy (Ph.D.) Theses and Dissertations

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    Facts of farm size and distribution patterns on resource productivity and farm incomes in Kwara State, Nigeria.
    (Department of Agricultural Economics , Obafemi Awolowo University, Ile-Ife., 2023) Olumuyiwa, Fowole Ashaolu
    This study examined the distributional issues in resource productivity and farm incomes in Kwara State, through the economic analysis of agricultural production, conditional upon farm size. Specific objectives were to examine the existing farm size patterns and identify factors which determine the distribution of farms in the state, analyze the impacts of the existing farm size patterns on resource productivity and farm incomes, investigate the cost-size relationships for grain-crop farms under irrigated (Fadama) and rainfed agriculture, and determine the optimal farm sizes and forecast the distribution of future farms for the small, medium and large farm size groups.
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    The impact of land tenure systems and rural credit market on agricultural investmenet in Oyo state of Nigeria.
    (Department of Agricultural Economics, Obafemi Awolowo University, Ile-Ife., 1990) Idowu, Ezekiel Oluwakayode.
    The study was designed to provide an imperical measure of association and possible line of causation between land tenure institutions, rural credit and agricultural investment in Oyo state. The Objective was to investigate the various ways by which the existing land tenure system and rural credit market are influencing the process of agricultural development.
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    Genetic and non-genetic sources of variation in liter size, kidding interval and body weight at various ages in West African dwarf goats.
    (Department of Animal science , Obafemi Awolowo University, Ile-Ife, Nigeria., 1991) Idowu, Kolawole Odubote.
    Records on eight hundred and forty-eight west African Dwarf Goat kids sired by eleven bucks mated to a total of one hundred and thirty doot vere used for this study.
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    Soil fertility requirement and intensity cultivation for increasing rice production
    (Department of Soil Science, Faculty of Agriculture, Obafemi Awolowo University., 1987) Ajayi, Emmanuel Oluwole Ojo
    A study was conducted at Badeggi (Agaie soil series) for three years with the objectives of determining the effect of combinations of intensive cultivation and soil fertility management on rice productivity of submerged soils.
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    Genetics analysis of multiple stress tolerant extra-early maize (Zea mays L.) inbred lines under contrasting environments
    (Department of Crop production and protection, Faculty of Agriculture, Obafemi Awolowo University., 2021) OBISESAN, Oluwafemi Isaiah
    This study evaluated grain yield performance and stability of 210 extra-early maize hybrids across stress and non-stress environments; established the mode of gene action controlling the inheritance of yield and other traits under Striga infestation, drought, optimal conditions and across environments; assessed the combining abilities of the inbreds; classified the lines to heterotic groups based on their combining ability; and determined the efficiency of inbred testers and interrelationship among traits measured. These were with a view to develop and deploy improved hybrids with combined tolerance to these stresses in West and Central Africa.