Influence of Seed Soaking and Foliar Application Using Ozonated Water on Two Sweet Pepper Hybrids under Cold Stress

The harmful impacts of ozone (O3) on plant development and productivity have been excessively studied. Furthermore, the positive influences its low concentrations still need to be explored further. present study was performed assess impact O3 two sweet pepper hybrids under cold stress. ozonated water utilized for seed soaking or foliar application at 0, 10, 20, 30, 40 ppm. Seed using 1 h compared in distilled as a control. Moreover, exogenously sprayed thrice three-day intervals with untreated differences between applied methods (seed water) were not statistically detected most evaluated parameters. On other hand, displayed significant studied parameters, superiority Lirica evident germination seedling growth Both significantly improved In particular, concentration ppm highest enhancement index, coefficient velocity, quality. addition, it promoted maintenance high relative content (RWC), chlorophyll, proline, ascorbate peroxidase activity stress conditions. protected cell wall from damage by decreasing membrane permeability (MP). Generally, best results obtained followed 30 spray. pointed out possible use protect plants during early growth.