Table 2.
Volatile substances and their relative concentrations in full bloom stage.
| Class | Name of substance | R.T.min | Relative concentration (%) | Molecular formula |
|---|---|---|---|---|
| Alcohols | 3-Hexen-1-ol | 7.229 | 22.3 | C6H12O |
| Trans-2-Hexenal | 8.047 | 6.1 | C6H12O | |
| Benzyl Alcohol | 18.328 | 0.2 | C7H8O | |
| 1,2-Heptanediol | 18.486 | 0.3 | C7H16O2 | |
| Phenylethyl alcohol | 22.181 | 2.5 | C8H10O | |
| 4-Methoxybenzyl alcohol | 31.647 | 0.4 | C8H10O2 | |
| Aldehydes | Benzaldehyde | 14.815 | 16.6 | C7H6O |
| Nonanal | 17.646 | 0.1 | C9H18O | |
| Phenylacetaldehyde | 19.313 | 0.6 | C8H8O | |
| 4-Methoxybenzaldehyde | 30.705 | 32.8 | C8H8O2 | |
| Esters | Methyl cinnamate | 34.793 | 0.3 | C10H10O2 |
| Methyl anisate | 34.998 | 13.7 | C9H10O3 | |
| Ethyl 4-methoxybenzoate | 37.585 | 0.8 | C10H12O3 | |
| Others | o-Tolunitrile | 25.520 | 0.2 | C8H7N |
| 2-Ethylfuran | 11.549 | 0.5 | C6H8O |
Note: Relative concentration refers to the proportion of the substance in the total volatile components. Means within a column followed by the same letter are not significantly different at p-value <0.05.