Table 3. Stability of reference gene expression across abiotic conditions.

Abiotic conditions	Reference genes	geNorm		Normfinder		BestKeeper		△Ct
		Stability	Rank	Stability	Rank	Stability	Rank	Stability	Rank
Temperature	ACTIN	0.392	4	0.416	6	0.418	7	0.605	5
	EF1A	0.42	5	0.415	5	0.265	2	0.616	6
	GAPDH	0.646	8	0.840	9	0.737	9	0.934	9
	RPL10	0.460	6	0.439	7	0.412	6	0.638	7
	RPL18	0.312	1	0.278	3	0.407	5	0.533	3
	RPL28	0.312	1	0.247	2	0.318	3	0.519	2
	RPS13	0.563	7	0.799	8	0.606	8	0.903	8
	RPS15	0.340	2	0.177	1	0.180	1	0.506	1
	SOD	0.361	3	0.302	4	0.362	4	0.557	4
Photoperiod	ACTIN	0.495	4	0.415	5	0.422	2	0.609	5
	EF1A	0.472	3	0.258	1	0.429	3	0.535	1
	GAPDH	0.595	7	0.629	8	0.725	8	0.755	8
	RPL10	0.523	5	0.533	7	0.503	5	0.679	7
	RPL18	0.426	1	0.361	4	0.450	4	0.580	4
	RPL28	0.426	1	0.354	3	0.429	3	0.572	2
	RPS13	0.631	8	0.636	9	0.627	7	0.759	9
	RPS15	0.549	6	0.420	6	0.577	6	0.619	6
	SOD	0.439	2	0347	2	0.404	1	0.574	3