Abstract
The measuring values of growth parameters of Solanum melon gene were highly affected by the different stresses of O-3. The plant height was highly significant affected (P<0.0001) by ascorbic acid (AA) (32.66 +/- 8.08 cm/plant) followed by the control treatment (29.00 +/- 5.19 cm/plant) and the lowest highest was found by the plants grown in the second power plant (SPP II) (12.00 +/- 2.00 cm/plant). Moreover, the growth parameters were positively highly affected P< 0.001) by treatment of AA. The introducing of AA with the plants grown in the second industrial city (SIC II) which has an O-3 with a concentration of 136.66 pbb, didn't significantly enhanced the growth parameters. The growing plants planted in SPP II (exposed to approximately 92 ppb) and enhanced by introducing of AA (SPP II+AA), exhibited the higher amounts of Chl a (27.45 +/- 1.03mg g(-1) FW), Chi b (10.43 +/- 1.05 mg g(-1) FW), T Chi (47.35 +/- 3.41 mg g(-1) FW) and Caro (9.46 +/- 1.35 mg g(-1) FW). On the other hand, the Pro content was affected by SIC 11 (8.69 +/- 0.61 g/100 g(-1) Fw), SIC II+AA (8.07 +/- 0.27 g/100 g(-1) Fw) and SPP 11 (8.92 +/- 2.08 g/100 g(-1) Fw). The different parameters of anatomical features or stomatal parameters and vessels diameters of S. melon gena grown in the locations with high level of O-3 in comparisons with the control plants were significantly affected (P<0.0001).