Table 2.

Short description of each conducted experiment together with their abbreviation

Experiment abbreviation	Description
Exp. 1	Evaluation of five nutrient solutions: Conn [6], Hoagland [22], Hermans [25], Murashige and Skoog (MS) [23], and Tocquin [24]
Exp. 2	Comparison of Somerville solution [9, 21] at different electrical conductivity (EC) and phosphate levels using Hoagland [22] as control treatment
Exp. 3	A salt (NaCl) dose response experiment in the range of 0.5 to 32 dS m−1 to establish the response of Arabidopsis to salt (ionic) stress in deep water culture
Exp. 4	The effects of Hoagland [22] nutrient solution concentration in the range of 0.1 to 0.7 dS m−1 including Tocquin [24] solution as reference/control
Exp. 5	The effects of Hoagland [22] nutrient solution concentration in the range of 0.5 to 1.25 dS m−1 including Tocquin [24] solution as reference/control