Characterization of essential oil profiles, triterpenic acids, and biological assay in aerial parts of various Thymus persicus Jalas (Ronniger ex Rech.f.) populations

Chemical and Biological Technologies in Agriculture

Table 9 Morphological traits associated with phytochemical compositions in Thymus persicus populations (TPPs) as illustrated using multiple regression analysis and coefficients

Morphological marker	Phytochemical composition	r	R₂	Standardized beta coefficients	t value	P value
PH	Betulinic acid	0.965^a	0.931	0.965	5.208	0.035
CanD	Total tannins content	0.983^a	0.967	0.983	7.688	0.017
DMW	Total saponins content	0.965^a	0.930	0.965	5.171	0.024
	p-Cymene	0.888^b	0.789	0.888	6.113	0.000
	Ursolic acid	0.936^c	0.876	0.721	5.387	0.000
	Betulinic acid	0.988^d	0.976	0.333	5.695	0.000
RL	4,8-β-epoxy-Caryophyllene	0.978^a	0.957	0.978	6.656	0.022
FSL	Total saponin content	0.966^a	0.932	− 0.966	− 5.247	0.034
LLWR	Caryophyllene oxide	0.983^a	0.966	0.983	7.590	0.017
LCo	α-Terpineol	0.952^a	0.906	0.952	4.387	0.048
BolW	DPPH	0.983^a	0.965	0.983	7.479	0.019
CaL	Total flavonoids content	0.968^a	0.937	− 0.968	− 5.451	0.032
FSL	Carvacrol	0.729^a	0.531	0.729	3.366	0.007
IntL	α-Terpineol	0.931^a	0.866	0.558	4.262	0.002
BL	Oleanolic acid	0.984^a	0.969	− 1.031	− 12.937	0.000
LL	Oleanolic acid	0.620^a	0.384	0.620	2.496	0.028
NFI	4,8-β-epoxy-Caryophyllene	0.980^a	0.960	0.279	5.407	0.000
	Betulinic acid	0.994^b	0.988	− 0.110	− 2.708	0.000
	α-Terpineol	0.996^c	0.994	− 0.416	− 12.868	0.000
	γ-Terpinene	0.997^d	0.994	0.195	7.197	0.000
NIP	4,8-β-epoxy-Caryophyllene	0.531^a	0.282	0.531	2.657	0.016
	Ursolic acid	0.691^b	0.478	− 0.691	− 3.024	0.013
	Betulinic acid	0.944^c	0.891	0.944	9.051	0.000
	Linalool	0.960^d	0.921	0.818	7.653	0.000
	γ-Terpinene	0.979^e	0.959	− 0.507	− 6.549	0.000
	p-Cymene	0.982^f	0.964	− 0.477	− 6.594	0.000
	Thymol	0.997^g	0.993	− 0.659	− 21.081	0.000