Table 5.
Effect of γ‐aminobutyric acid (GABA) and nitrogen on P5CS activity in leaves in different fragrant rice genotypes (U/g FW)
| Treatment | HS | 15d AH | MS |
|---|---|---|---|
| GABA0 | |||
| YX | |||
| ZN | 9.859 | 10.585 | 14.537 |
| LN | 10.166 | 10.493 | 13.369 |
| MN | 7.455 | 14.659 | 14.055 |
| HN | 7.670 | 9.901 | 10.987 |
| YG | |||
| ZN | 6.103 | 6.362 | 7.148 |
| LN | 6.840 | 6.054 | 6.953 |
| MN | 5.151 | 4.491 | 7.628 |
| HN | 6.556 | 6.712 | 6.137 |
| BS | |||
| ZN | 13.310 | 48.553 | 13.517 |
| LN | 11.574 | 17.559 | 73.011 |
| MN | 8.694 | 13.973 | 24.057 |
| HN | 10.267 | 56.993 | 12.069 |
| Mean | 8.637 | 17.195 | 16.956 |
| GABA250 | |||
| YX | |||
| ZN | 13.503 | 12.667 | 13.251 |
| LN | 10.858 | 11.839 | 15.622 |
| MN | 8.571 | 10.150 | 10.333 |
| HN | 8.042 | 12.555 | 10.082 |
| YG | |||
| ZN | 7.653 | 6.283 | 8.476 |
| LN | 7.171 | 5.535 | 8.231 |
| MN | 4.673 | 5.481 | 6.989 |
| HN | 5.444 | 6.312 | 7.880 |
| BS | |||
| ZN | 11.633 | 16.082 | 27.692 |
| LN | 11.492 | 13.046 | 18.846 |
| MN | 9.086 | 11.955 | 21.812 |
| HN | 7.548 | 10.929 | 21.335 |
| Mean | 8.806 | 10.236 | 14.212 |
| ANOVA | |||
| T | 0.12ns | 4.10ns | 1.90ns |
| V | 53.54** | 9.06** | 37.81** |
| T × V | 4.13* | 4.24* | 2.29ns |
| N | 17.75** | 3.64* | 16.09** |
| T × N | 1.79ns | 2.68ns | 16.42** |
| V × N | 1.17ns | 3.33** | 11.76** |
| T × V × N | 0.89ns | 3.65** | 19.55** |
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.