I would make up a 1x Hoagland's solution, by doubling all the volumes of the various component solutions. I would then make up a NaCl solution of twice the required strength, and mix 1:1 with the 1x Hoagland's. So to make various NaCl concentrations, just make several NaCl solutions of 2x the final concentration desired.
e.g. to treat plants with 150 mM NaCl in 0.5x Hoagland's, mix equal volumes of 1x Hoagland's with 300 mM NaCl.
12/17/2012 4:24:40 PM Reply