Table 7.
Effect of γ‐aminobutyric acid （GABA） and nitrogen on OAT activity in leaves in different fragrant rice genotypes (U/g FW)
| Treatment | HS | 15d AH | MS |
|---|---|---|---|
| GABA0 | |||
| YX | |||
| ZN | 50.436 | 118.519 | 175.335 |
| LN | 53.765 | 131.904 | 180.132 |
| MN | 39.305 | 167.937 | 173.495 |
| HN | 58.381 | 154.551 | 174.264 |
| YG | |||
| ZN | 80.354 | 77.057 | 88.004 |
| LN | 77.795 | 85.609 | 98.689 |
| MN | 72.791 | 76.401 | 176.657 |
| HN | 68.798 | 65.836 | 187.467 |
| BS | |||
| ZN | 137.599 | 154.256 | 196.877 |
| LN | 157.291 | 155.757 | 178.268 |
| MN | 135.698 | 177.890 | 193.295 |
| HN | 143.348 | 135.035 | 174.143 |
| Mean | 89.630 | 125.063 b | 166.385 |
| GABA250 | |||
| YX | |||
| ZN | 49.478 | 142.124 | 174.679 |
| LN | 56.952 | 162.462 | 203.454 |
| MN | 57.504 | 182.127 | 182.437 |
| HN | 49.556 | 157.765 | 175.051 |
| YG | |||
| ZN | 93.848 | 121.396 | 112.825 |
| LN | 85.471 | 77.531 | 108.065 |
| MN | 85.621 | 76.574 | 93.593 |
| HN | 87.751 | 78.630 | 90.222 |
| BS | |||
| ZN | 154.083 | 160.150 | 196.942 |
| LN | 148.063 | 163.815 | 227.015 |
| MN | 156.887 | 171.943 | 209.212 |
| HN | 134.361 | 174.965 | 197.217 |
| Mean | 96.631 | 139.123 a | 164.226 |
| ANOVA | |||
| T | 6.01ns | 12.40* | 0.16ns |
| V | 376.67** | 140.20** | 59.29** |
| T × V | 1.23ns | 0.21ns | 8.40** |
| N | 1.26ns | 1.92ns | 1.82ns |
| T × N | 2.62ns | 0.97ns | 7.90** |
| V × N | 0.89ns | 3.05* | 3.93** |
| T × V × N | 1.39ns | 1.38ns | 6.02** |
Means with different lowercase letter(s) differ statistically at p < .05.
Abbreviations: BS, Basmati‐385; d AH, days after heading; HS, heading stage; MS, maturity stage; YG, Yugengyou14; YX, Yuxiangyouzhan.
*
Significant at p < .05;
**
Significant at p < .01; ns: nonsignificant.