Physiological Responses of Wild and Cultivated Barley to the Interactive Effect of Salinity and Iron Deficiency

Table 2

Na⁺ concentrations (mmol Na⁺·g⁻¹ DW) in shoots and roots of H. maritimum and H. vulgare plants hydroponically grown under iron supply (+Fe) or iron starvation (−Fe) at different salt levels (0, 100, 200, 300 mM) over 60 h. Means of three replicates. For each line, means followed by the same letters are not significantly different at 5% according to Duncan’s test.

	Shoots				Roots
NaCl (mM)	0	100	200	300	0	100	200	300
H. maritimum
Iron treatment
+Fe	0.03^a	0.66^b	1.06^c	1.34^d	0.09^a	0.59^b	0.82^c	0.82^c
−Fe	0.03^a	0.76^b	0.99^c	1.27^d	0.11^a	0.58^b	0.84^c	0.87^c
H. vulgare
Iron treatment
+Fe	0.029^a	0.64^b	1.33^c	1.84^d	0.10^a	0.42^b	0.49^b	0.56^c
−Fe	0.03^a	0.56^b	1.63^c	2.86^d	0.11^a	0.60^c	0.67^d	0.53^b