Figure 1. Effect of root applied TU on (A) number of leaves, (B) tuber fresh weight, (C) leaf area and (D) tuber dry weight of 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.

Means sharing similar letter(s) within a column for each parameter do not differ significantly at p < 0.05. Data in the figures are means of three repeats (n = 3) of just one harvest of potato plants ± standard deviation (SD). Different treatments (TU) used in this study are as follows: 0 mM (0 mM of root applied TU), 0.5 mM (0.5 mM of root applied TU) and 0.75 mM (0.75 mM of root applied TU).