Table 2.
Headspace Volatile Organic Compounds collected from receiver plants.
| Compound | Mean values (pg g−1 fresh weight) ± s.e. | |||
|---|---|---|---|---|
| R-S1 | R-S2 | R-S3 | R-S4 | |
| 2,4-Dimethyl-1-heptene | 21.1185 ± 4.4608 | 12.1636 ± 2.2963 | 13.8323 ± 2.597 | 13.3111 ± 3.3908 |
| Ethylbenzene | 2.3097 ± 0.3994 | 2.3475 ± 0.4796 | 2.3484 ± 0.3575 | 2.7257 ± 0.6377 |
| p-Xylene | 8.6292 ± 1.4987 | 6.998 ± 1.2153 | 6.624 ± 1.2566 | 8.2506 ± 2.1974 |
| Amyl acetate | 0.489 ± 0.0766 | 0.5146 ± 0.14 | 0.4247 ± 0.0796 | 0.4807 ± 0.1049 |
| 2-Ethylhexanal† | — | — | — | 0.3531 |
| 4-Methylnonane | 1.9951 ± 0.6047 | 1.0561 ± 0.1576 | 0.727 ± 0.2447 | 1.1947 ± 0.4201 |
| Benzene, 1-ethyl-3-methyl-† | — | — | — | 0.0557 |
| benzaldehyde | 1.999 ± 0.75 | 2.0219 ± 0.6277 | 2.4066 ± 0.5362 | 3.8278 ± 1.5466 |
| 1-heptanol | 1.0527 ± 0.4114 | 0.9293 ± 0.3244 | 1.1244 ± 0.3817 | 1.3657 ± 0.4278 |
| 6-Methyl-5-hepten-2-one † | 0.0279 | — | — | — |
| Benzene, 1,3,5-trimethyl-* | 1.6267 ± 0.4142 | 1.006 ± 0.2542 | 0.5463 ± 0.2498 | 0.8002 ± 0.2682 |
| 1,4-dichlorobenzene | 7.667 ± 1.5971 | 6.0373 ± 1.2119 | 6.136 ± 1.177 | 7.622 ± 2.2909 |
| β-Ocimene* | 0.2265 ± 0.1035 | 0.1609 ± 0.0959 | 0.0489 ± 0.0443 | — |
| 2-ethyl-1-hexanol | 8.5359 ± 1.6822 | 7.1676 ± 1.4032 | 7.1111 ± 1.4065 | 9.9573 ± 3.0689 |
| acetophenone* | 1.438 ± 0.4395 | 1.2966 ± 0.1957 | 0.9845 ± 0.1998 | 1.3795 ± 0.387 |
| p-tolualdehyde | 3.7601 ± 0.9613 | 2.3816 ± 0.3119 | 1.7538 ± 0.4484 | 2.706 ± 0.7754 |
| Methyl benzoate | 0.3758 ± 0.1115 | 0.1327 ± 0.0602 | 0.1875 ± 0.0656 | 0.3088 ± 0.1149 |
| nonanal | 1.0921 ± 0.2091 | 1.267 ± 0.2963 | 1.2065 ± 0.2345 | 1.4374 ± 0.491 |
| camphor | 0.7695 ± 0.1488 | 0.6473 ± 0.1606 | 0.5334 ± 0.0855 | 0.6584 ± 0.2237 |
| naphthalene | 37.4862 ± 6.8839 | 27.2688 ± 4.7471 | 26.2957 ± 4.6487 | 31.9383 ± 9.1619 |
| 1-dodecene | 4.1405 ± 0.7282 | 3.1478 ± 0.6093 | 3.1018 ± 0.6402 | 3.6768 ± 1.2184 |
| decanal | 1.0878 ± 0.2345 | 0.7909 ± 0.2322 | 0.7063 ± 0.1913 | 1.0781 ± 0.3643 |
| Benzaldehyde, 2,4-dimethyl- | 0.7173 ± 0.1489 | 0.6024 ± 0.1355 | 0.4959 ± 0.094 | 0.6487 ± 0.1646 |
| 4-vinylphenol | 0.0297 ± 0.028 | 0.1929 ± 0.0677 | 0.0925 ± 0.0925 | 0.0226 ± 0.0226 |
| Ethanol, 2-phenoxy- | 1.0697 ± 0.3511 | 0.6518 ± 0.2817 | 0.3234 ± 0.1734 | 1.2439 ± 0.4482 |
| benzothiazole | 1.3984 ± 0.2395 | 1.517 ± 0.3732 | 0.7183 ± 0.1567 | 1.2738 ± 0.3447 |
| α-pinene | 0.4563 ± 0.0895 | 0.4042 ± 0.0983 | 0.4061 ± 0.0754 | 0.4701 ± 0.1301 |
| limonene | 0.4216 ± 0.0817 | 0.3408 ± 0.0709 | 0.3464 ± 0.065 | 0.3879 ± 0.1136 |
| linalool | 0.785 ± 0.1143 | 0.651 ± 0.1388 | 0.6061 ± 0.1115 | 0.7579 ± 0.2429 |
Asterisks indicate significant differences among treatments (Kruskal-Wallis One Way Analysis of Variance on Ranks); a Latin cross denotes that the compound was exclusively detected in one type of receiver. See Table 1 for the plant code description.