Browsing by Author "Ahmed, Oladimeji"

Now showing 1 - 9 of 9
  • Item
    Component analysis for seed mycoflora in four cultivars of cowpea (Vigna unguiculata (L) Walp.
    (Library and Publication Committee, University of Ilorin, Nigeria, 2006) Ahmed, Oladimeji
  • Item
    Control of Post-harvest loss of Tomato fruits caused by Fusarium verticilloides with aqueous leaf extracts of Azadirachta indica Juss. and Vernonia amygdalina Del.
    (Society for Conservation of Phytofuels and Sciences, 2013) Ahmed, Oladimeji; Aliyu, T. H; Orisasona, M. D; Ojumoola, O. A; Kayode, R. M. O; Badmos, A. H. A
    This study was carried out to determine the effect of leaf extracts of Azadirachta indica and Vernonia amygdalina on the control of post harvest deterioration of tomato fruits caused by fungi. The extracts were applied at 5% and 10% w/v against Fusarium verticilloides, one of the rot causing fungi in tomato fruits, in-vitro in a completely randomized experimental design. The effect of the extracts on the mycelia growth diameter of the fungus was measured following two perpendicular lines passing through the centre of the culture on plates. The extracts were later applied at 10%w/v on tomato fruits inoculated with the fungus and the weight loss (a deterioration parameter) was recorded over time. The mycelia growth of the fungus was significantly (p ˂ 0.05) reduced by the plant extracts. Compared with the control, the plant extracts performed better at 10% w/v than at 5% w/v. Mean weight loss of the treated fruits was significantly (p< 0.05) reduced throughout the period of the experiment compared with the untreated fruits and the control. Neem leaf extract was more effective. Palatability test conducted on the treated tomato fruits showed that there was no significant difference in the taste of the treated fruits and those not treated suggesting that both plant extracts can be used for the preservation of tomato fruits to prolong its shelf life
  • Item
    Detection and determination of pathogenicity of seed-borne fungi in maize (Zea mays L.) varieties
    (Faculty of Pure and Applied Sciences LAUTECH Ogbomoso, Nigeria., 2010) Fawole, O. B; Ahmed, Oladimeji; Adetunji, S. B
  • Item
    Effect of Pre- and Post- germination treatment of soybean (Glycine max L.) with aqueous extract of Moringa oleifera stem bark on fungal infection
    (International Moringa and Nutraceutical Research Society., 2014) Aliyu, T. H; Balogun, O. S; Onuegbu, L. C; Ahmed, Oladimeji
  • Item
    Fungal Diversity in selected Cultivated Farmland within the University of Ilorin Campus
    (Federal University of Kashere-Nigeria., 2022-03) Ahmed, Oladimeji; Abioye, A. I; Omiyale, R. O
    This study was carried out to determine the fungal biota composition of selected agricultural soils and to determine the soil pH level and organic matter content that supports the observed fungal community in the soils within the University of Ilorin campus. Serial dilution technique was used to determine the fungal colony count of the sampled soils. Soil pH was determined with the use of p H meter and organic matter content of the soil was determined using the Walky Black procedure. Nine species of fungi belonging to seven genera were isolated from all the sampled soils. The fungi were identified as Aspergillus flavus, Aspergillus niger, Aspergillus ochraceous, Botryodiplodia theobromae, Cladosporium sp., Fusarium verticilloides, Penicillium sp., Phomopsis sp. and Pythium sp. There was no significant difference (p˃0.05) in the population of the isolated fungi in all the sampled soils except for Phomopsis sp. in soybean cultivated soil samples and Fusarium sp. in soils sampled from zone C. The results also showed no significant difference (p˃0.05) in the organic matter content of the soils. The sampled soils were generally slightly acidic with pH values ranging between 6.03 and 6.88. Significant differences (p<0.05) only existed between the pH values of cassava cultivated soils obtained from the different zones. These organic matter content and the p H values of the soils were found to be within the range suitable for the survival of the fungal community in the study area.
  • Item
    Incidence and Severity of Sugarcane red rot disease in selected sugarcane growing areas of Kwara State, Nigeria
    (International Journal of Moringa and Nutraceutical Research Society, 2018) Ahmed, Oladimeji; Zubairu, M. A; Solomon, A. O
  • Item
    INFLUENCE OF SEED PRIMING ON YIELD, MORPHOLOGICAL AND PHYSIOLOGICAL CHARACTERISTICS OF WATER-DEFICIT STRESSED LOWLAND RICE
    (Annals of West University of Timişoara, ser. Biology,, 2021) Kareem, Isiaka; Ismail, M.R.; Puteh, A.B.; Kareem, S.A.; Lawal, O.I.; Adekola, O.F.; Abdulkareem, K.A.; Olayinka, B.U.; Abdulaziz, Ayinla; Ahmed, Oladimeji; Baba, H.S.; Kuranga, H.A.; Lawal, Q.O.; Musa, A.I.; Yusuf, Sa'adat Yetunde; Lawal, Mujidat Temidayo; Oyelade, Y.O.
    One of the potential ways of increasing rice production to cater for ever increasing population of Malaysia is to extend the production area of lowland rice through its production as upland rice. Therefore, this research was conducted to determine the effects of seed priming in alleviating water deficit stress in lowland rice produced as upland rice. The treatments used were 100mM calcium chloride dihydrate for duration of 48hours and temperature of 25oC, 40% w/v polyethylene glycol (PEG) 6000 for a duration of 48hours and temperature of 25oC, 100ppm kinetin for a duration of 24hours and temperature of 4oC, 200ppm methyl jasmonate for a duration of 24hours and temperature of 4oC, stressed control (unprimed seeds) and the unstressed control (unprimed seeds with adequate irrigation). The experiment was laid out in randomized complete block design (RCBD) with three replications. Data were collected on classical growth parameters, germination pattern, gas exchange characteristics, yield and yield components. It was found that priming MR219 rice with PEG could enable the variety to be produced as upland rice with little yield reduction because PEG priming was the best in individual seed mass, final yield, harvest index and water use efficiency. It is, therefore, concluded that 48hours of priming with 40%w/v polyethylene glycol at 25oC be used for MR219 rice seeds whenever MR219 rice variety is to be cultivated as upland rice.
  • Item
    PATHOGENICITY OF SEED-BORNE FUNGI ON SOYBEAN (GLYCINE MAX (L.) MERRIL) IN NIGERIA
    (Federal University of Technology Akure Ondo State, 2018-04) Ahmed, Oladimeji; Balogun, O. S; Abolarinwa, Maryam; Adebola, Lateef
    Soybean provides an inexpensive and high quality source of protein worldwide as compared to animal protein but its production is constrained mainly by diseases which include the seed-borne diseases. Five seed-borne fungi isolated from fifteen soybean cultivars grown in the Guinea Savannah agro-ecology of Nigeria were evaluated for their pathogenicity on soybean cultivar TGX 1448-2E. The effect of the fungi was determined on seed viability, seedling biomass and plant morphology using the seedling symptom method. Translocation of the fungi in the seedlings was also determined. All the fungi reduced seed viability, mean root and shoot weight and seedling height significantly (p<0.05) with Phomopsis sp. being the most virulent. The result also showed that translocation of the fungi decreased from the root towards the upper part of the plant. The number of plants that showed symptoms of postemergence damping off and stunting in response to inoculation with the different fungi and those with no symptom (normal seedlings) also differed significantly (p<0.05). Implications of the fungi on healthy growth of soybean are discussed.
  • Item
    Study on Evaluation of Forty Two Pepper Lines Land Races for Resistance to Virus Diseases Under Field Conditions.
    (Horticultural Society of Nigeria, 2019) OKE, K. E; Adetula, O. A; Idowu-Agida, O. O; Akinfasoye, J. O; Kayode, A. B; Orkpeh, U; Oyedeji, E. O; Abdul-Rafiu, A. M; Taiwo, O. S; Dixon, H. G; Adebiyi, O. E; Ahmed, Oladimeji; Modupeola, T. O; Oladosu, B. O; Adebisi-Adelani, Y