Table 5. Relative stability ranking of potential reference genes based on geNorm, NormFinder, Bestkeeper and ΔCt method.

Experimental conditions	Four most stable genes				Recommended comprehensive ranking	Two Least stable genes
	geNorm	NormFinder	Bestkeeper	ΔCt
All	CYP,EF-1, UBQ,RPL2	TUB, CYP, UBQ, 26S	UBQ, RPL2, CYP,EF-1	CYP, EF-1, UBQ, RPL2	CYP, EF-1,UBQ,RPL2	18S-rRNA, TUA
Wounding	CYP, UBQ, TUB, RPL2	CYP, RPL2, TUB, 18S-rRNA	RPL2, CYP, 18S-rRNA, 26S	CYP, RPL2, TUB, 18S-rRNA	CYP, RPL2, TUB, 18S-rRNA	TUA, GAPDH
Salt	TUB, RPL2, CYP,T-SAND	UBQ, GAPDH, CYP, EF-1	EF-1,GAPDH,T-SAND, 26S	T-SAND, CYP,TUB,RPL2	T-SAND,TUB, CYP,EF-1	18S-rRNA, ACT
Drought	26S, RPL2, UBQ, CYP	26S, UBQ, RPL2, ACT	UBQ, RPL2, 26S, CYP	26S, UBQ, RPL2, CYP	26S, UBQ, RPL2, CYP	TUA, TUB
Heat	CYP, EF-1, TUB, 26S	26S, TUB, CYP, GAPDH	T-SAND, ACT, RPL2, 18S-rRNA	CYP, TUB, 26S, EF-1	CYP, 26S, TUB, EF-1	TUA, 18S-rRNA
Cold	CYP, UBQ, TUB, RPL2	TUB, RPL2, EF-1, T-SAND	18S-rRNA, TUB, CYP, UBQ	TUB, RPL2, EF-1, UBQ	TUB, UBQ, RPL2, CYP	TUA, ACT
Tissue	CYP, EF-1, GAPDH,RPL2	CYP, RPL2 GAPDH, EF-1	CYP, EF-1, UBQ, 26S	CYP,EF-1,GAPDH, RPL2	CYP,EF-1,GAPDH,RPL2	T-SAND, ACT
MJ	CYP, TUB, T-SAND, 18S-rRNA	CYP, T-SAND, TUB, TUA	T-SAND, RPL2, EF-1, CYP	CYP, T-SAND, TUB, TUA	CYP, T-SAND, TUB, RPL2	26S, UBQ
SA	T-SAND, UBQ, RPL2, EF-1	T-SAND, CYP, 18S-rRNA, RPL2	T-SAND, UBQ, RPL2, EF-1	T-SAND, CYP, 18S-rRNA, RPL2	T-SAND, UBQ, RPL2, CYP	GAPDH, ACT
ABA	RPL2, EF-1, 26S, UBQ	18S-rRNA, T-SAND, TUB, CYP	UBQ, CYP, EF-1, T-SAND	18S-rRNA, T-SAND, TUB, EF-1	18S-rRNA, EF-1, T-SAND, UBQ	GAPDH, ACT
Biotic	UBQ, T-SAND, EF-1, 18S-rRNA	UBQ, T-SAND, EF-1,CYP	TUB, RPL2,UBQ,EF-1	EF-1, CYP, T-SAND, UBQ	UBQ, T-SAND, EF-1, TUB	GAPDH, TUA