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Table 2 Retention time, relative frequency and relative abundance of identified mono- and sesquiterpenes in essential oil from A. artemisiifolia var. elatior leaves

From: Effect of elevated atmospheric carbon dioxide on the allelopathic potential of common ragweed

Monoterpenes Sesquiterpenes
Compounds R.T. D.F. (%) Compounds R.T. D.F. (%)
2-Hexenal 4.56 88 Bicycloelemene 17.51 21
Santolina triene 5.57 63 δ-Elemene 17.59 46
α-Pinene 6.40 96 α-Copaene 18.69 38
Camphene 6.82 4 β-Bourbonene 18.92 13
Sabinene 7.39 29 β-Elemene 19.04 38
β-Pinene 7.54 83 β-Caryophyllene 19.88 100
β-Myrcene 7.78 100 γ-Elemene 20.06 33
dl-Limonene 8.93 100 β-Cubebene 20.11 4
1,3,6-Octatriene 9.37 100 Bergamotene 20.14 83
Chrysanthenone 11.58 33 γ-Cadinene 20.47 8
Borneol 13.06 25 β-Farnesene 20.60 33
    β-Selinene 20.76 8
    α-Caryophyllene 20.79 92
    α-Selinene 21.19 25
    γ-Curcumene 21.27 17
    Germacrene-D 21.43 100
    Aromadendrene 21.61 17
    Bicyclogermacrene 21.76 88
    δ-Cadinene 22.28 29
    β-Sesquiphellandrene 22.40 4
    α-Gurjunene 22.63 4
    Elemol 23.00 4
    Germacrene B 23.31 46
    endo-1-Bourbonanol 23.71 42
  1. R.T. retention time (min), D.F. detection frequency (presented as percentage occurrence in all extract samples)