Bulletin of the National Research Centre

Table 4 Effect of different concentrations of arginine and SNP on photosynthetic pigments (mg/g fresh wt.) of sunflower plants under salinity stress

From: Comparative study for the effect of arginine and sodium nitroprusside on sunflower plants grown under salinity stress conditions

Salinity	Material	Conc. (mM)	Chl. a	Chl. b	Carotenoids	Total pigments
0	Control	0	1.54	0.75	0.28	2.57
	Arginine	10	1.68	0.85	0.33	2.86
	Arginine	20	1.88	1.04	0.38	3.31
	SNP	0.25	1.65	0.94	0.30	2.89
	SNP	0.50	1.72	0.97	0.33	3.02
5000 (mg/L)	Control	0	1.24	0.60	0.32	2.16
	Arginine	10	1.35	0.71	0.35	2.40
	Arginine	20	1.43	0.85	0.36	2.64
	SNP	0.25	1.36	0.76	0.34	2.46
	SNP	0.50	1.49	0.78	0.36	2.63
LSD at 5%			0.0027	NS	0.0017	0.05
LSD at 1%			0.0034	NS	0.0024	0.08

NS not significant

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