Browsing by Author "Olajide, O. O."

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    Genetic Variations, Heritability and Genetic Advance Studies among Okra Accessions grown in different Agro-ecological Zones in Nigeria
    (International Journal of Food Science and Agriculture, 2019-05-16) Agbowuro, Gbenga O.; Salami, A. E.; Awoyemi, S. O.; Ogunwale, G. I.; Kehinde-Fadare, A. F.; Olajide, O. O.
    Some level of variation within crop varieties is highly important for its improvement with the aids of good plant breeding methods. A field research experiment was carried out with the aim to estimate genetic variation and heritability in the okra accessions grown in different agro-ecological zones in Nigeria. Twenty okra accessions were obtained from various locations in different agro-ecological zones of Nigeria. Twenty okra accessions were evaluated between April to August 2018 at Ekiti State University Teaching and Research Farm, Ekiti State. These twenty okra accessions constituted the treatment, which was lied out in a RCBD in a three replicates. The result were highly significant (p<0.01) for all the traits studied. Magnitude of the phenotypic coefficient of variances were slightly higher than genotypic coefficient of variances in this study which showed that environment did not much influence the estimates of genetic performance. The coefficient of phenotypic and genotypic variances were high in the traits studied. Heritability estimates ranges from 75.04% for days to 50% flowering to 98.85% for weight of 100 seeds. High heritability with high genetic advance were observed for all the studied traits indicating that they are governed by additive gene action and this could be improved through simple selection except days to 50% flowering with the lowest heritability value coupled with the lowest genetic advance value lesser than 10%.
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    PHENOTYPIC VARIABILITY AMONG AFRICAN YAM BEAN LANDRACE ACCESSIONS FROM DIFFERENT AGRO-ECOLOGIES OF NIGERIA
    (Nigerian Agricultural Journal, 2021-04) Agbowuro, G. O.; Salami, A. E; Aluko, M.; Olajide, O. O.
    The aim of this research work was to estimate the genetic variability and magnitude of the genetic components of some phenotypic traits among twenty African yam bean landraces collected from three agro-ecological zones of Nigeria. The accessions constituted the treatment which was laid out in a Randomized Complete Block Design with three replications. Accession seven performed best across the three locations in terms of grain yield, while accession ten had the least performance in term of grain yield. Levels of accessions and locations were significantly different (P<0.05) from one another for the studied traits except hypocotyl length, while accession x location interaction differed significantly (though at different levels) in all the traits except hypocotyl length, number of leaves per plant and pod length. The results revealed that phenotypic coefficient of variation were higher than genotypic coefficient of variation for the traits studied. Broad sense heritability estimates were high in all the studied traits. Genetic advance as percentage values were moderate to high for all the traits. High heritability estimate values coupled with high genetic advance in the research work depicts that improvement can be made on the crop through simple selection. This study provides baseline information for improving African yam bean landrace.