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

Abiotic conditions	Reference gene	geNorm		Normfider		BestKeeper		ΔCt
		Stability	Rank	Stability	Rank	Stability	Rank	Stability	Rank
Temperature	28S	0.19	1	0.15	3	0.17	1	0.38	2
	CypA	0.35	5	0.39	5	0.35	5	0.53	5
	EF1A	0.19	1	0.10	1	0.19	2	0.37	1
	ATPase	0.21	2	0.14	2	0.19	2	0.39	3
	GAPDH	0.50	6	0.83	7	0.59	6	0.87	7
	18S	0.22	3	0.18	4	0.26	3	0.41	4
	Actin	0.30	4	0.44	6	0.33	4	0.55	6
Photoperiod	28S	1.44	3	1.50	4	0.47	1	2.57	4
	CypA	1.30	2	0.66	2	1.77	5	2.35	2
	EF1A	2.25	5	3.51	6	1.53	4	3.73	6
	ATPase	1.15	1	0.78	3	1.50	3	2.39	3
	GAPDH	1.15	1	0.57	1	0.79	2	2.25	1
	18S	3.04	6	1.50	7	5.11	7	4.99	7
	Actin	1.87	4	1.75	5	2.54	6	2.96	5
	28S	0.43	5	0.48	6	0.38	6	0.57	6
	CypA	0.48	6	0.53	7	0.44	7	0.60	7
dsRNA	28S	0.45	3	0.42	3	0.46	5	0.65	3
	CypA	0.28	2	0.21	1	0.35	1	0.60	1
	EF1A	0.53	5	0.52	6	0.72	6	0.75	6
	ATPase	0.76	6	1.29	7	1.27	7	1.35	7
	GAPDH	0.25	1	0.44	4	0.44	2	0.68	5
	18S	0.48	4	0.48	5	0.45	3	0.68	4
	Actin	0.25	1	0.22	2	0.45	4	0.62	2