Table 2 The effect of selenium sources and flowering stages on some essential oils of Echium amoenum.
Compsition | RI | Con | Sodium selenite (mg L−1) | Sodium selenite (mg L−1) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
2 | 4 | 8 | 16 | 2 | 4 | 8 | 16 | ||||
1 | a-Pinene | 922 | 18.11 | 19 | 19.02 | 20.2 | 20.73 | 21.23 | 23.61 | 21.23 | 19.19 |
2 | Myrcene | 989 | 0.51 | 0.61 | 0.35 | 0.55 | 0.42 | 0.49 | 0.35 | 0.47 | 0.61 |
3 | (Z)-β-Ocimene | 1034 | 1.21 | 1.23 | 1.11 | 0.9 | 0.87 | 1.25 | 0.5 | 1.02 | 1 |
4 | 1-Octen-3-yl acetate | 1111 | 0.56 | 0.61 | 0.68 | 0.12 | 1.25 | 0.98 | 0.4 | 1.11 | 2.21 |
5 | Camphor | 1167 | 0.8 | 4 | 3.8 | 3.3 | 2.2 | 1.2 | 0.9 | 2.1 | 1.9 |
6 | Terpinen-4-ol | 1180 | 1.23 | 0 | – | – | – | – | – | – | – |
7 | Borneol | 1184 | 4 | 1.6 | 1.2 | 0.8 | 1.6 | 1.3 | 1.7 | 2.08 | 1.44 |
8 | Carvacrol | 1307 | 4.6 | 4.4 | 4.36 | 4.86 | 4.77 | 5 | 5.89 | 4.22 | 4.08 |
9 | δ-Elemene | 1340 | 2.33 | 2.25 | 2.12 | 2.09 | 2.42 | 2 | 0.7 | 2.29 | 2.72 |
10 | β-Elemene | 1392 | 3.61 | – | – | – | – | – | – | – | – |
11 | β-Caryophyllene | 1413 | 2.01 | 1.55 | 2.65 | 2.02 | 2.21 | 1.61 | 1.79 | 1.87 | 3.08 |
12 | α-Guaiene | 1439 | 0.61 | 0.31 | 0.53 | 1 | 0.41 | 0.46 | 0.22 | 0.25 | 0.52 |
13 | β-Sesquiphellandrene | 1512 | – | 3.31 | 3.23 | 3.69 | 3.45 | 3.61 | 1.89 | 3.56 | 3.33 |
14 | δ-Cadinene | 1519 | 46.66 | 47.31 | 47.74 | 47.91 | 49 | 50.02 | 53 | 50.5 | 47 |
15 | α-Cadinene | 1533 | 4 | 4.3 | 4.26 | 4.5 | 3.54 | 4.03 | 5.5 | 4.11 | 4.23 |
16 | Spathulenol | 1577 | 1.21 | – | – | – | – | – | 0.02 | – | – |
17 | β-Eudesmol | 1651 | 0.77 | 0.64 | 0.56 | 0.68 | 0.78 | 0.91 | 0.25 | 0.67 | 0.85 |
18 | α-Cadinol | 1566 | 1.21 | 1.32 | 1.5 | 1.24 | 1.23 | 1.1 | 1.03 | 1.11 | 2.25 |
19 | β-Bisabolol | 1688 | 3.12 | 2.22 | 2.08 | 2.51 | 2.42 | 2.55 | 1.2 | 1.1 | 2.22 |
20 | 2-Phenethyl benzoate | 1798 | 3.11 | 2.25 | 2.26 | 2.11 | 2.31 | 2.13 | 1 | 1.45 | 2.09 |
All (%) | 99.65 | 96.91 | 97.45 | 98.48 | 99.61 | 99.87 | 99.95 | 99.14 | 98.72 | ||
