Figure 5. Schematic presentation interpreting the application of TU in two potato cultivars (Potato-SH-5 and Potato-FD.73-10) grown in controlled (100% water field capacity) and drought (65% water field capacity) stressed environment.

The drought stressed environment inhibited the plant growth characteristics and higher oxidative damaged was accumulated in the potato cultivars. Although, the negative impact of drought stress in both cultivars of potato can overcome by root applied by the application of TU, which not only increased plant growth characteristics and photosynthetic pigments but also decreased oxidative damage by enhancing antioxidant capacity in both cultivars of potatoes.