Table 4 Effect of shading treatment on the relative content (%) volatile compounds in grains
From: Shading during the grain filling period increases 2-acetyl-1-pyrroline content in fragrant rice
Compounds | Yuxiangyouzhan | Nongxiang 18 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
S0 | S1 | S2 | S3 | Mean | S0 | S1 | S2 | S3 | Mean | |
(E)-2-Hexenal | 0.58c | 1.76a | 1.67a | 1.17b | 1.29 | 1.15b | 2.16a | 1.86a | 1.55ab | 1.68* |
1-Hexanol | 1.45a | 1.12a | 1.65a | 1.69a | 1.48 | 2.10ab | 2.55a | 2.21ab | 1.78b | 2.16 |
Heptanal | 15.73a | 19.84a | 17.97a | 16.28a | 17.45 | 25.11ab | 22.99b | 24.14ab | 25.91a | 24.51* |
2-acetyl-1-pyrroline | 18.06b | 18.07b | 18.08b | 22.93a | 19.29* | 10.84b | 14.22a | 14.17a | 13.11a | 13.08 |
Octane | 7.26a | 7.22a | 5.91b | 5.83b | 6.55 | 7.00ab | 7.47a | 6.25bc | 6.01c | 6.68* |
1-Heptanol | 1.29a | 1.07a | 0.85a | 0.86a | 1.02 | 1.06a | 0.98a | 1.29a | 1.02a | 1.09 |
1-Octen-3-ol | 1.96a | 2.16a | 3.43a | 1.80a | 2.34 | 2.12a | 1.94a | 1.87a | 2.08a | 2.00 |
Octanal | 11.92b | 14.81a | 13.56ab | 11.60b | 12.97 | 13.36b | 13.62b | 13.26b | 15.24a | 13.87* |
Benzyl alcohol | 0.24b | 0.74a | 0.38ab | 0.61ab | 0.52 | 0.20b | 0.78a | 0.27b | 0.82a | 0.49 |
Benzeneacetaldehyde | 5.31a | 3.95a | 4.00a | 5.53a | 4.70 | 4.16ab | 4.90a | 4.16ab | 3.73b | 4.23 |
3,8-Dimethylundecane | 12.08a | 9.62a | 9.81a | 13.36a | 11.22 | 9.46b | 12.16a | 12.22a | 8.67b | 10.63 |