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

Figure 3

Phytosiderophore (PS) exudation rates (mmol/g root FW· 4 h⁻¹) as a function of shoot Na⁺ concentration (mmol/g DW) in the presence (a) or the absence of Fe (b). White symbols stand for H. vulgare while black symbols stand for H. maritimum.

(a)  

(b)