Recycled Wastewater and Reverse Osmosis Brine Use for Halophytes Irrigation: Differences in Physiological, Nutritional and Hormonal Responses of Crithmum maritimum and Atriplex halimus Plants

Halophytes are capable of coping with excessive NaCl in their tissues, although some species may differ degree salt tolerance. In addition, it is not clear whether they can tolerate other confounding factors and impurities associated non-conventional waters. The experiment was performed a greenhouse Crithmum maritimum Atriplex halimus plants, growing on soil irrigated two different water types: reclaimed wastewater (RWW) (EC: 0.8–1.2 dS m?1) reverse osmosis brine (ROB) 4.7–7.9 m?1). Both showed physiological nutritional responses, when were ROB. plants reduced leaf potential maintained turgor as consequence an osmotic adjustment process. higher intrinsic use efficiency than Crithmum, regardless the type used. status photosynthetic similar both treatments. presented accumulation B Ca ions, while amount K, Mg, Na Zn. ROB concentrations 1-aminocyclopropane-1-carboxylic acid trans-zeatin-glucoside, whereas abscisic concentration lower. lower trans-zeatin-riboside scopoletin. characteristics to irrigation did influence negatively development any these species, which confirms alternative irrigate them conventional