Browsing by Author "Lawal O.O"

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    Comparative evaluation of forage grasses for stability analysis using GGE biplot and AMMI and forage yield modelling
    (Research on Crops, 2020) Lawal O.O; Abdulrahaman O.L; Ayanda I.F; Ishola Hakeem; Olatinwo L.K; Ibrahim U.Y
    The need for cultivation of forage grasses to feed animals, as a way of ameliorating the clashes between herders and crop farmers cannot be over emphasized. Therefore, this study was conducted during 2019 at three diverse agro-ecological zones in Kwara State, Nigeria to assess the yield potential, stability, and the possibilities of improving forage yield through secondary traits. Hence, three forage grasses (Elephant grass, Pennisetum purpureum; Gamba grass, Andropogon gayanus; and Ruzi grass, Brachiaria ruziziensis) were laid out in randomised complete block design (RCBD) wherein data was collected on vegetative, stress index traits and yield and were subjected to analysis of variance (ANOVA). Traits with significant G × E were subjected to stability analysis using genotype × genotype × environment interaction (GGE) biplot and additive main effects and multiplicative interaction (AMMI). Structural equation model was used to depict the association between yield and secondary traits. The results revealed significant (p < 0.05) difference among forage grasses for yield and other traits, hence, they are amendable to selection and improvement through breeding efforts. AMMI and GGE biplot effectively identified the best and most stable forage grass as Pennisetum purpureum (28.59 t/ha) for general adaptations, and Ruzi and Gamba for target environments. Plant height, number of tillers, leaf area, dry matter content and stay green are valuable secondary traits that are employable in improving forage yield. Pennisetum can meet the feed demand of herder’s animals, which, if adopted for cultivation and use, can reduce the incessant crises between farmers and herders in Nigeria.
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    Residual Effect of Applied Compost on growth and yield of Tomato (Lycopersicon esculentum Mill) under an Alfisol
    (INTERNATIONAL JOURNAL OF SCIENCES AND ENERGY RESEARCH, 2017-01) 1Wahab A.A; Dada O. A; Aina O; Agbanna K; Ashaye W.O; Lawal O.O; 1Alabi K. O
    A field experiment was carried out to determine the residual effect of compost applied to two tomato varieties (UC82B and BESKE) on growth and yield succeeded by same varieties in second season on an organic farm, Abeokuta. Three rates 0, 10 and 20 t/ha of compost were incorporated to the soil classified as kandiustalf before planting in the first season. The treatments were arranged in split-plot layout and randomized complete block design. The parameters considered were plant growth and yield. The results of this study showed that the residual effect of compost applied to tomato varieties affected the growth and fruit yield of succeeding tomato. Also, the results showed that preceding tomato varieties had no significant effect on succeeding tomato growth parameters like plant height, number of leaves, number of branches, leaf area and leaf area index. Application of 20t/ha of composts on preceding tomato varieties plots significantly increased number of fruits per plant, fruit weight, total fruit yield and earliness to fruiting of the succeeding tomato plant than where no compost was applied.