The Role of Ethylene Gas in Local Rice Cultivars (Oryzae sativa) in ali Local Government Area, Bal. Bali Town as the Case Study.
Abstract
Rice (Oryza sativa) is a staple food that provides the staple food requirements for more than 50% of the global population. As the human population increases fast, there a need to increase its production to satisfy their needs. However, rice production is associated with low nitrogen use efficiency as a result of leaching and denitrification. Ethylene plays important roles in root elongation, partial disease resistance, and inhibition of nitrification, grain filling, regulating root structure, increasing water use efficiency and triggering growth in rice. Three experiments were set up in the Research Farm of the Department of Agricultural Technology, Federal Polytechnic, Bali Taraba State Nigeria. The rice cultivars used were Yar Ai, Maikano, Chikwa and CP Jamila and all of them were grown under flooded, aerobic and alternate wetting and drying (AWD) soil management The objective of the study was to find out whether rice could produce ethylene gas and study it, to find out if the production of ethylene gas varied with local rice cultivars and to determine whether or not the produced ethylene could inhibit biological nitrification. On the first experiment of weather local varieties of rice produce ethylene gas or not, result showed that local rice varieties could produce ethylene gas (P < 0.01). On the second experiment of weather the production of ethylene gas varied with the local rice cultivar or not, the result showed the production of ethylene gas varied with local rice cultivars (P< 0.05).On the third experiment to determine if the produced ethylene gas could inhibit biological nitrification, the result showed that the concentration of ethylene gas could no inhibit the oxidation of ammonium when the obtained value was compared with the ammonium oxidation limit.
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