Table 2.
The peak area of the main volatile compounds emitted from multi-treated Barbarea vulgaris plants.
| Main Compounds | Peak Area × 10−6 pA·s (μL/mL) | |||
|---|---|---|---|---|
| HB * | FLB | TLB | MB | |
| hexahydrofarnesyl acetone | 4.18 | 5.38 | 10.21 | 3.53 |
| n-heptanal | 4.19 | 4.74 | 0.17 | 3.59 |
| α-pinene | 2.34 | 5.07 | 2.92 | 3.16 |
| hexadecanoic acid | 12.20 | 9.97 | 15.62 | 11.28 |
| while phytol | 2.59 | 2.9 | 0.14 | 2.75 |
| (Z)-3-hexenyl acetate | 7.67 | 7.78 | 6.36 | 8.3 |
| sabinene | 2.8 | 2.99 | 2.52 | 3.15 |
| 3-methylsulfinylpropyl isothiocyanate | 26.64 | 1.63 | 7.36 | 24.9 |
| 4-methylsulfinyl-3-butenyl isothiocyanate | 1.68 | 0.65 | 0.45 | 1.88 |
* HB, healthy B. vulgaris; FLB, first instar larvae feeding on B. vulgaris; TLB, third instar larvae feeding on B. vulgaris; MB, mechanically damaged B. vulgaris.