Table 3.
Tuber yield of the non-transgenic control (CK) and the transgenic potato plants with high and very high expression of StPIP1 gene under no-stress, moderate-and severe drought stress.
| Groupa | Tuber per plant (g) | ||
|---|---|---|---|
| Non-stress | Moderate drought | Severe drought | |
| CK | 240.7 ± 1.5 ab | 149.7 ± 2.0 d | 6.3 ± 0.9 f |
| High | 240.0 ± 1.0 a | 195.2 ± 0.7 c | 126.3 ± 1.7 e |
| Very High | 241.2 ± 1.6 a | 228.0 ± 4.1 b | 145.5 ± 1.0 d |
a
CK is the “Shepody” non-transgenic potato cultivar, the rest are transgenic potato lines with “High” (T1 and T5) and “Very high” (T6 and T7) degree of tolerance.
b
Significant differences among means in each column according to Tukey's HSD test at P < 0.05 (n = 9, i.e., 3 replicates × 3 runs of the experiment).