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The experiment was conducted in the winter agricultural season 2020 in the greenhouses of Al-Faris Company in Al-Zubair district The aim of the study is studying the effect of salinity of irrigation water on the mineral leaves content of twenty-one cultivars of Armenian Cucumber( Cucumis melo  var. flexuosus), Where the experiment included 42 treatments, which resulted from two main factors, the first one is irrigation water, which are (1and 5 dS.m −1 )and the second factor was included 21cultivars, of Armenian cucumber were selected, 16 of which are local and 5 imported. The study showed that the salinity of irrigation water caused a significant increase in the leaves content of potassium and sodium, with an increase of 33.71% and 324.43%, respectively, while irrigation with Naturalwater caused an increase in the percentage of the potassium element to the sodium with an increase reached 330.83%, While the cultivars differed in their content of mineral elements, where the Tikrit cultivar excelled with the highest content of phosphorous and potassium amounted to 0.2299% and 6.820%, respectively. While the Diyala cultivar gave the highest leaves content of sodium 5.548%) and the Karbala cultivar excelled and gave the highest percentage of potassium to sodium in the leaves of 5.681%), while the Italian cultivar recorded the lowest percentage of phosphorus in the leaves 0.0201, the Diwaniyah cultivar gave the lowest percentage of potassium in leaves, reaching 4.240%, and the cultivar Amarah gave the lowest percentage of sodium in the leaves, reaching 2.218%.Where the Mosul cultivar (Abu Akaf) gave the lowest average of potassium to sodium ratio in the leaves when it reached 1.209%).

iop conference series. earth and environmental science

Effect of Salinity Irrigation Water on the Mineral Leaves Content for a Number of Alqutha Cucumber (Cucumis Melo Var. Flexuosus) Cultivated in Greenhouses