Mitigation of water stress by compost and arginine application and its impacts on barley production

Bulletin of the National Research Centre

Table 4 Proline and plant height of barley as affected by arginine (Arg) and irrigation regimes

Varieties	Compost	Proline (mg g⁻¹ fresh weight)				Plant height (cm)
		Sufficient irrigation		Deficit irrigation		Sufficient irrigation		Deficit irrigation
		Arg (−)	Arg (+)	Arg (−)	Arg (+)	Arg (−)	Arg (+)	Arg (−)	Arg (+)
Giza 125	0.0-ton fed⁻¹	2.45	2.21	3.85	2.99	75.30	80.40	61.40	68.30
	2.0-ton fed⁻¹	2.30	2.16	2.84	2.38	85.30	95.60	63.40	73.70
	4.0-ton fed⁻¹	1.55	1.46	2.60	2.21	91.80	104.50	67.30	79.40
	6.0-ton fed⁻¹	1.28	1.24	2.38	2.07	95.00	109.60	71.70	82.20
Tombari	0.0-ton fed⁻¹	2.81	2.57	3.44	2.85	77.80	85.40	60.10	66.30
	2.0-ton fed⁻¹	2.33	2.16	2.74	2.62	86.40	95.40	71.80	80.30
	4.0-ton fed⁻¹	2.06	1.95	2.66	2.57	90.50	103.60	72.20	82.80
	6.0-ton fed⁻¹	2.00	1.87	2.18	2.09	102.70	116.30	75.30	89.00
	0.0-ton fed⁻¹	2.65	2.12	3.53	2.78	65.20	72.40	57.40	66.10
Ksar	2.0-ton fed⁻¹	2.09	1.87	2.74	2.60	80.30	92.10	62.30	74.40
Megrine	4.0-ton fed⁻¹	1.75	1.53	2.65	2.52	90.60	106.60	67.40	82.00
Megrine	6.0-ton fed⁻¹	1.48	1.43	2.29	2.20	98.20	113.70	71.20	87.00
Tamellat	0.0-ton fed⁻¹	2.03	1.81	3.91	2.79	71.20	75.40	62.00	69.40
	2.0-ton fed⁻¹	1.67	1.57	2.33	1.97	85.40	95.00	67.90	77.80
	4.0-ton fed⁻¹	1.45	1.36	2.11	1.87	93.60	105.00	70.60	84.30
	6.0-ton fed⁻¹	1.11	1.06	1.54	1.41	100.50	115.00	73.40	88.40
LSD (0.05)	Varieties	0.10	0.06	0.14	0.19	1.92	1.46	1.04	1.27
	Compost	0.07	0.05	0.04	0.25	2.32	1.13	2.08	1.96
	Interaction	0.15	0.11	0.17	0.41	3.86	2.37	2.85	2.95