Table 2.

Expression stability of the candidate reference genes calculated by NormFinder software.

Total		IBA		SA		Cold		Heat		MeJA
Ranking	Stability	Ranking	Stability	Ranking	Stability	Ranking	Stability	Ranking	Stability	Ranking	Stability
EF 1-a	0.011	EF 1-a	0.004	GAPDH	0.010	GAPDH	0.008	ACT	0.009	UBQ	0.004
UBC	0.015	GAPDH	0.007	UBC	0.012	ACT	0.008	APT1	0.013	EF 1-a	0.004
ACT	0.031	UBC	0.014	APT1	0.013	EF 1-a	0.010	EF 1-a	0.013	GAPDH	0.008
UBQ	0.035	ACT	0.018	EF 1-a	0.017	UBC	0.012	UBC	0.023	β-TUB	0.022
GAPDH	0.052	UBQ	0.019	ACT	0.022	APT1	0.014	UBQ	0.039	ACT	0.023
β-TUB	0.059	APT1	0.038	UBQ	0.026	UBQ	0.024	β-TUB	0.047	APT1	0.030
APT1	0.078	β-TUB	0.062	β-TUB	0.029	β-TUB	0.069	GAPDH	0.104	UBC	0.032
18SrRNA	0.120	18S rRNA	0.118	18S rRNA	0.079	18S rRNA	0.159	18S rRNA	0.132	18S rRNA	0.173
Drought		Different organs		Root		Stem		Leaf		NaCl
Ranking	Stability	Ranking	Stability	Ranking	Stability	Ranking	Stability	Ranking	Stability	Ranking	Stability
EF 1-a	0.007	UBQ	0.015	UBC	0.016	UBC	0.009	GAPDH	0.009	EF 1-a	0.007
UBC	0.008	EF 1-a	0.015	β-TUB	0.016	β-TUB	0.011	ACT	0.011	APT1	0.007
GAPDH	0.020	UBC	0.023	ACTIN	0.027	EF 1-a	0.011	UBC	0.013	UBC	0.020
UBQ	0.022	ACTIN	0.028	EF 1-a	0.029	ACTIN	0.017	UBQ	0.021	UBQ	0.025
ACT	0.032	β-TUB	0.042	UBQ	0.044	UBQ	0.028	EF 1-a	0.025	GAPDH	0.039
β-TUB	0.046	GAPDH	0.046	GAPDH	0.055	GAPDH	0.060	β-TUB	0.039	β-TUB	0.056
APT1	0.046	APT1	0.079	18s rRNA	0.060	APT1	0.100	APT1	0.145	ACT	0.058
18S rRNA	0.053	18s rRNA	0.124	APT1	0.093	18s rRNA	0.102	18s rRNA	0.148	18s rRNA	0.093