Browsing by Author "Kareem, S.A."
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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 Rapid Determination Of CaO and SO3 in Loose Powder Cement by Energy Dispersive X-Ray Fluorescence (EDXRF) Technique(2006) Adebayo, S. A.; Mustapha, L.G.; Kareem, S.A.Percentage CaO and SO3 in loose powder cement were determined rapidly using the EDXRF spectrometer. Sample particle size was further reduced by grinding in a rotating disc gyratory mill for a period of 120 seconds. To avoid the absorption of secondary x-rays from the low atomic number elements (Ca and S), measurement was carried out in helium atmosphere instead of air. The results showed a high degree of accuracy and precision technically desired for process control in a cement factory. The method was found to be more effective (less time consuming and cost saving) compared to the pressed pellet or the fused bead methods employed on the EDXRF spectrometry and the spectrophotometric and gravimetric methods often used by the industry.