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    Öğe
    ADAPTATION STRATEGIES TO CLIMATE CHANGE WITH SUSTAINABLE IRRIGATION
    (Univ Agronomic Sciences & Veterinary Medicine Bucharest - Usamv, 2023) Cetin, Oner; Doganay, Kivanc Hayri; Bezdan, Jovana
    Global warming and climate change are the biggest problems of the world today. Agricultural irrigation plays a very important role in both increasing production and reducing the potential risk of drought. However, excessive use of water in agriculture (>10 000 m(3) ha(-1)), very low irrigation efficiency (35-50%) and the effect of climate change cause a rapid decrease in water resources.In adaptation to climate change, efficient use of water resources in agricultural production, irrigation water productivity (kg m(-3)), economic productivity of water ($ m(-3)), farmers' net income ($ ha(-1)) and total water use (m(3)ha(-1)) should be considered for each irrigated area. Thus, both the farmers, the irrigation authority and the decision makers can choose to implement possible deficit irrigation strategies and/or the most effective water use strategies according to these parameters. Thus, the main categories might be identified under the sustainable resource management, water management, technological developments, farm management, and farm production practices. Adaptation strategies to climate change can be implemented, but the costs and benefits of these practices need to be well understood.
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    Öğe
    Salinity Stress Effects on the Growth Yield and Quality Performance of Two Sweet Potato Varieties
    (Amer Chemical Soc, 2023) Doganay, Kivanc Hayri; Kurunc, Ahmet; Dincer, Cuneyt
    Theyield response of several sweet potato varieties to salinitystress has been extensively studied in the scientific literature,but no research on the Koganesengan and Beniazuma varieties has beenidentified. The purpose of this study was to examine the effects ofvarious irrigation salinity levels on the growth (vine and tuber lengths,stem and tuber diameters, and number of leaves, shoots, and tubers),yield (fresh, dry, tuber, and total yields, and water use efficienciesfor vine, tuber, and total yields), and quality parameters (dry matter,ash, crude fiber, starch, phenolic matter, antioxidant activity, ss-carotene,ascorbic acid, protein, saccharose, glucose, and fructose contents)of these sweet potato varieties under drip irrigation. The findingsshow that without a varietal difference, increasing water salinitylevels increased soil salinity and decreased soil pH values. Somegrowth and yield parameters of Beniazuma were negativelyaffected by the salinity level, but not those of Koganesengan.Irrigation salinity levels only had an effect on the crude fiber contentand antioxidant activity of Koganesengan and the ash,starch, ss-carotene, and ascorbic acid contents of Beniazuma.Significant variations between varieties were only seen under thecontrol treatment for all yield parameters (except dry vine yield)and water use efficiency values. According to the calculated salinitythreshold and slope values, Beniazuma is more sensitiveto salt stress than Koganesengan.