Potential of Industrial Waste Water Use for Jatropha Cultivation in Arid Land

A pot experiment was conducted in the greenhouse of the National Research Center, Dokki, Cairo, Egypt to investigate the effect of NKP foliar fertilizer and irrigation by Industrial Drainage Water (IDW) on Lipid Peroxidation (LP) and antioxidant enzyme activities [Catalase (CAT), Suproxide Desmatase (SOD) and Ascorbate Peroxidas (APX)] of jatropha plants. Plants fertilized with NPK fertilizers (N0g+P0g+K0g, N3g+P3g+K3g and N6g+P6g+k6g/pot) and irrigated by mixed varied levels of industrial drainage water (0, 25, 50 and 75% IDW). Data showed that concentration of LP increased as percentage of IDW increased up to 75% and tended to decrease with water contains zero IDW. A positive relationship was observed between the CAT, SOD and APX enzyme activities and the level of IDW in irrigation water. The maximum values of the three enzymes activities were obtained with application of NPK: 2:2:2 followed by application of NPK: 1:1:1 as compared with to the control. The highest lipid peroxidation were detected in leaves of non fertilized plants and irrigated by IDW, whereas the lowest values were detected in leaves of plants fertilized by NPK: 2:2:2 by fresh water.