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Browsing Scholarly Publication by Author "Abdulkareem, K. A."

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    Composition of Coconut (Cocos nucifera L. Cv. Fiji Dwarf) Edible Endosperm and Physicochemical Properties of its Oil
    (Jewel Journal of Scientific Research, 2021-08-21) Abdulkareem, K. A.; Olayinka, B. U.; Lawal, A. R.; Adeniji, O. A.; Ibuowo, M. B.; Jacobs, O. E.; Abdulra’uf, L. B.; Kareem, I.; Aboyeji, O. O.; Mustapha, O. T.; Etejere, E. O.
    Coconut (Cocos nucifera L.) is one of the most important oil producing crops in the world. It has enormous industrial and health benefits. To affirm the foregoing, the proximate and physicochemical constituents of the oil extracted from the edible endosperm were determined. The results showed that percentage moisture, protein, ash, crude fat, crude fibre and carbohydrate had respective values of 42.39 %, 6.21 %, 1.04 %, 17.18 %, 8.95, and 23.69 %. The edible mesocarp has high amount of mineral elements such nitrogen, potassium, calcium and phosphorus. Whereas, elements such as sodium, manganese, magnesium, copper and chlorine occurred in low quantity. The physicochemical properties of the oil showed a refractive index of 1.46, specific gravity of 0.92 g/cm3, acid value of 2.15 %, free fatty acid of 1.08 %, saponification of 125.980 mgKOH/g and iodine value of 2.89 indicating that the oil is good for consumption. Given, the results of proximate and mineral compositions, the edible endosperm could therefore be considered as good source of energy and alternative source of dietary supplement for human nutrition.
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    Effect of phosphorus fertilizer and shoot pruning on growth, yield and fruit quality of tomato (Solanum lycopersicum)
    (Indian Journal of Agricultural Sciences,Indian Council of Agricultural Research, 2023-12-29) Olayinka, B. U.; Abdulbaki, A. S.; Oyewole, M.; Jacob, O. E.; Abdulkareem, K. A.; Lawal, A. R.; Abdulra’uf, L. B.; Isiaka, K.; Muhammed, G. Y.; Ezekekwu, C. P.; Mustapha, O. T.
    This study aimed to investigate the tolerance level and the use of primers (H2O, KNO3, ascorbic acid and salicylic acid), in mitigating stress in maize in the newly released cultivars (SWAN-LSR-Y, BR9928-OMR-SR-Y and OMR-LSR-SY). Activities of SOD, APX, CAT and GSH and lipid peroxidation were investigated, to measure the biochemical response of the primed maize seeds. Maize seeds primed with KNO3 and ascorbic acid improved germination and anti-oxidative potential against ROS in ameliorating the salinity stress, while salicylic acid slowed germination. The same trend was followed in the seed vigour index and radicle length of seeds primed with ascorbic acid, which recorded the highest values. The control was observed to have the highest seed vigour index, while seeds primed with salicylic acid showed the least vigour index in the maize seeds. Increased salinity stress showed adverse effects on all growth parameters. Of the maize cultivars tested, SWAN-LSR-Y showed the most tolerance to salinity stress, in terms of germination. Significant high enzymatic activities and lipid peroxidation were recorded in seeds primed with ascorbic acid and KNO3 show their importance in plant metabolic activities.