Browsing by Author "Olaniyan, J.O"

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    INFLUENCE OF SEED PRIMING ON YIELD, MORPHOLOGICAL AND PHYSIOLOGICAL CHARACTERISTICS OF WATER-DEFICIT STRESSED LOWLAND RICE
    (West University of Timisoara, Romania, 2021-08-28) Kareem, I; Ismail, M.R; Puteh, A.B; Kareem, S.A; Lawal, O.I; Adekola, O.F; Faseyi, A.F; Olaniyan, J.O; Yusuf, S.Y; Lawal, M.T; Abdulkareem, K.A; Olayinka, B.U; Abdulaziz, A.; Ahmed, O; Baba, H.S; Kuranga, H.A; Lawal, Q.O; Musa, A.I; Oyelade, H.Y
    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.
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    NPK partitioning, growth, yield and proximate composition of okra (Abelmoschus esculentus) under water deficit stress
    (Agricultural Academy of Bulgaria, 2020-04) Kareem, I; Faseyi, A.F; Saliu, A.K; Abdulmaliq, S.Y; Adekola, O.F; Abdulkareem, K.A; Olayinka, B.U; Abdulaziz, A.; Alasinrin, S.K; Hakeem, A.K; Usman, M.; Lawal, M.T; Ahmed, O; Lawal, O.I; Bello, W.B; Salami, T.B; Ayeleke, D.A; Azeez, K.O; Olaniyan, J.O; Affinnih, K.O; Olalekan, K.K
    This experiment was conducted to determine the effects of drought stress on growth yield, NPK partitioning and nutritional composition of okra. To achieve this objective, four levels of water deficit stress (daily (control), a day interval, two days interval and three days interval irrigation) were tested on 17Lucky19 (hybrid) okra variety in a pot experiment. The experiment was laid out randomized complete block design (RCBD) with three replications. Parameters used to determine the effects of water deficit stress were nitrogen, phosphorus and potassium contents of stems and leaves. Plant height, number of branches, number of leave, number of fruits, fresh fruit mass, dry straw mass, chlorophyll content, and proximate parameters (crude fat, crude fibre, crude protein and ash contents of the leaves) were also used. It was found that all the growth and yield parameters tested reduced with increase in water deficit levels. Similarly, all proximate parameters decreased with increase in water deficit levels with the exception of crude fibre which increased with increase in water deficit levels. In the same vein, nitrogen and potassium levels decreased with increase in water deficit levels in both leaves and stems. However, phosphorus levels in stems and leaves decreased with increase in water deficit levels. It is, therefore, concluded that 17Lucky19 is susceptible to water deficit stress. This implies that water deficit tolerant or resistant varieties should be used instead of 17Lucky19 whenever areas with irregular rainfall are to be used for cultivating this variety of okra.