Table 5. Stability analysis of 10 candidate reference genes with these samples under separate salt, drought stress and their combination in H. caspica by NormFinder.

10 candidate reference genes
Stability of value	ACT	UBC10	UBC13	TUB2	TUB3	EF1α	tRNA	5S rRNA	U6	miR1436
salt	0.673	0.338	0.480	0.782	0.475	0.200	0.700	0.734	0.552	0.562
drought	1.166	0.367	0.240	1.248	0.117	0.997	0.528	0.773	0.529	0.513
all samples	0.915	0.348	0.412	1.248	0.348	0.828	0.945	0.76	0.595	0.528