Abstract
This study was aiming for the determination of heavy metals (Co, Se, Cu, Mn, Fe, Zn, Pb, and Cd) of tomato plant tissue and tomato yield. Plants were cultivated in pots under greenhouse condition for two consecutive seasons using different mixed of tri-treated, di-treated and ground water. Using (75% ground water (G) + 25% ditreated water (D)) treatment, significantly increased Co, Se, Cu, Mn, Fe, and Pb in plants tissue compared with other treatments in plants tissue were (2.966, 1.014, 0.583, 43.86, 187.9, 1.373 mg/kg) respectively. While the highest value for Zn (47.40 mg/kg), Cd (1.730 mg/kg) were obtained after irrigation with (75% ground water (G)+ 25% tri-treated water (T) treatments compared with other irrigation treatments. On other the hand, the lowest concentration for heavy metal (Co 2.873 mg/kg, Se 1.002 mg/kg, Cu 0.423 mg/kg, Mn 32.06 mg/kg, Fe 172.7 mg/kg Pb 1.306 mg/kg, and Cd 1.490 mg/kg), in plants tissue were obtained after irrigation with control (G), while Zn (40.36) was the lowest value with (100% T) treatment. However, high value for dry/fresh weight plant (19.87 %) was observed when (75% G + 25% D) treatment was used. The highest value for tomato yield (2.22 kg/plant) was obtained after irrigation with (G) control, the second rank (1.870 kg/plant with 100% (D). The lowest value for dry/fresh weight/plant (16.26%), and tomato yield (1.320 kg/plant) was observed when irrigated with (75% G + 25% D) treatment.
Finally, it is possibly suggested that the use of tri ,ditreated water could be utilizated for irrigating tomato plants without hazardous heavy metal concentration in plant tissue.