Table 5.

Spearman’s rank correlations between chemical characteristics (amount of essential oil and percentages of main chemical compounds) of essential oil of Thymus pulegioides and some topsoil characteristics (humus, soil pH, mobile potassium (K₂O) mobile phosphorus (P₂O₅) and 15 chemical elements. Chemotypes define chemical compounds, precursors, biogenetically related compounds and statistically significant correlation coefficients are bold.

Chemical Characteristics	Humus, %	pHKCl	K2O, mg/kg	P2O5, mg/kg	Chemical Elements, mg/kg
					Al	Ca	Cu	Fe	K	Mg	Mn	Na	P	Co	S	Si	Ti	Zn	Cl
Amount of essential oil (%)	0.18	0.14	0.02	0.15	−0.16	0.13	−0.09	−0.16	−0.14	−0.02	−0.22	−0.06	0.08	−0.32	0.00	0.04	−0.12	−0.04	−0.02
Carvacrol	0.10	0.01	−0.08	0.18	0.08	0.13	0.09	0.13	0.09	0.14	−0.03	−0.20	0.07	−0.08	0.27	−0.16	0.13	0.08	0.00
Thymol	0.04	−0.14	0.15	0.12	−0.01	−0.05	−0.11	−0.08	−0.07	−0.07	−0.03	−0.04	0.16	−0.06	−0.12	0.12	−0.13	−0.12	0.10
p-Cymene	−0.12	0.02	0.01	−0.16	0.00	0.06	−0.02	−0.02	−0.03	−0.05	−0.10	−0.07	−0.18	0.02	−0.20	0.00	−0.11	−0.10	0.13
γ-Terpinene	0.07	−0.04	0.01	0.23	−0.06	0.04	−0.10	−0.11	−0.12	−0.15	−0.12	0.08	0.02	−0.14	0.13	0.02	−0.09	−0.04	−0.06
Geraniol	−0.19	0.05	−0.02	0.04	−0.13	−0.10	−0.12	−0.11	−0.05	−0.09	−0.02	0.18	0.04	0.07	−0.16	0.14	0.02	0.08	−0.22
Geranial	−0.20	0.03	−0.03	−0.02	−0.11	−0.13	−0.12	−0.12	−0.04	−0.10	0.00	0.19	−0.06	0.14	−0.23	0.17	−0.02	−0.09	−0.20
Nerol	−0.16	−0.05	−0.05	−0.06	−0.10	−0.22	−0.10	−0.12	−0.04	−0.16	0.03	0.22	0.06	0.15	−0.25	0.23	−0.03	−0.01	−0.20
Neral	−0.17	−0.05	−0.03	−0.05	−0.09	−0.19	0.10	0.11	−0.03	−0.14	0.03	0.19	0.06	0.15	−0.24	0.20	−0.02	−0.09	−0.20
Linalool	0.03	−0.03	0.05	0.16	−0.01	0.02	0.08	0.01	−0.02	0.04	−0.06	0.14	0.06	−0.04	0.08	−0.02	−0.06	−0.02	0.09
α-Terpinyl acetate	−0.10	0.00	0.08	0.14	0.09	0.07	−0.11	−0.07	−0.09	0.03	−0.03	0.12	−0.01	0.08	−0.01	−0.04	−0.09	−0.04	0.06
Myrcene	−0.04	−0.05	−0.01	−0.05	−0.12	0.08	−0.14	−0.10	−0.22	−0.02	−0.05	0.01	0.01	−0.10	0.06	0.02	−0.18	−0.08	0.04
Thymol methyl ether	−0.04	0.07	−0.13	−0.01	0.00	0.05	−0.13	−0.03	−0.09	−0.08	0.02	0.03	0.06	0.04	−0.08	0.11	−0.09	−0.06	0.07
Carvacrol methyl ether	0.06	0.04	0.07	−0.12	0.09	0.03	0.02	0.06	0.05	0.06	0.00	−0.09	0.01	−0.01	−0.06	−0.04	−0.01	−0.04	0.09
β-Caryophyllene	0.13	0.05	0.09	0.05	0.18	0.01	0.19	0.20	0.20	0.08	0.16	−0.16	0.17	0.14	0.16	−0.11	0.20	0.16	0.10
β-Bisabolene	0.08	0.05	−0.05	0.00	0.15	0.00	0.12	0.15	0.12	0.04	0.19	−0.15	0.13	0.16	0.07	0.06	0.15	0.13	0.12
Caryophyllene oxide	−0.22	0.03	0.03	−0.24	0.00	−0.11	−0.04	−0.01	0.03	−0.01	−0.03	0.05	−0.19	0.22	−0.33	0.12	−0.01	−0.15	0.07