Table 3 Correlation coefficients among 2-AP, GABA, total nitrogen, and proline content in grains
From: Shading during the grain filling period increases 2-acetyl-1-pyrroline content in fragrant rice
Index | 2-AP content | Grain GABA content | Proline content | Total nitrogen content |
|---|---|---|---|---|
Yuxiangyouzhan | ||||
2-AP content | 1 | 0.8326** | 0.5460 | −0.5557 |
GABA content | 0.8326** | 1 | 0.6926 | −0.3402 |
Proline content | 0.5460 | 0.6926 | 1 | −0.2272 |
Total nitrogen content | −0.5557 | −0.3402 | −0.2272 | 1 |
Nongxiang 18 | ||||
2-AP content | 1 | 0.5442 | 0.5356 | −0.1758 |
GABA content | 0.5442 | 1 | 0.3565 | 0.3836 |
Proline content | 0.5356 | 0.3565 | 1 | 0.3267 |
Total nitrogen content | −0.1758 | 0.3836 | 0.3267 | 1 |