Table 3. Leaf and root formation of the IbNFU1-overexpressing sweetpotato plants after 4 weeks of water culture with 86 mM NaCl.
| Plant lines | Leaf formation | No. of roots |
| L41 | ++a | 22.67±4.70** b |
| L4 | ++ | 21.33±4.33** |
| L5 | ++ | 13.00±3.06* |
| L27 | ++ | 11.67±3.18* |
| L32 | + | 8.67±2.73* |
| L24 | + | 8.33±2.60* |
| L39 | + | 7.67±3.71 |
| L19 | + | 7.00±2.31 |
| L6 | − | 5.67±2.03 |
| L12 | − | 5.00±2.08 |
| L16 | − | 4.67±1.76 |
| L13 | − | 4.33±1.45 |
| L25 | − | 2.00±1.53 |
| WT | − | 0.67±0.33 |
a
‘++’ indicates that cuttings formed obvious new leaves; ‘+’ indicates that cuttings survived, but failed to form new leaves; ‘−’ indicates that cuttings died;
b
Data are presented as means ± SE (n = 3). * and ** indicate a significant difference from that of the wild-type (WT) at P<0.05 and <0.01, respectively, by Student's t-test.