Table 17. Effect of 100 mM NaCl with or without glutathione, ascorbic acid, or amino acid mixture on protein nitrogen (%) of shoot and root of two barley cultivars at the seedling stage.

Treatments	Protein nitrogen
	Shoot		Root
	G124	G119	G124	G119
Control	3.4±0.03	3.9±0.06	1.6±0.03	2.3±0.01
NaCl	2.8±0.04	2.1±0.04	1.7±0.02	2.3±0.03
Glutathione	2.1±0.03	4.2±0.00	4.4±0.05	3.1±0.05
Glutathione plus salt	0.4±0.03	1.7±0.22	2.9±0.05	1.8±0.04
Ascorbic acid	1.0±0.03	2.0±0.02	0.6±0.01	2.6±0.01
Ascorbic acid plus salt	0.8±0.03	4.8±0.03	0.4±0.07	0.4±0.01
Amino acid mixtures	2.0±0.00	2.1±0.03	0.9±0.01	1.2±0.01
Amino acids plus salt	0.4±0.01	2.1±0.10	2.3±0.03	0.8±0.01
F	2519.3	495.5	2850.1	2727.2
P	**	**	**	**
LSD	0.06	0.16	0.07	0.05

^**Highly significant at P≤0.01.