Quantified root and shoot area of the 360 Arabidopsis accessions exposed to salt stress / control treatment. The data were collected during PhD of Magdalena Julkowska at University of Amsterdam, under supervision of Dr. Christa Testerink. The quantification of root system architecture was performed at University of Amsterdam, under supervision of Dr. Christa Testerink, and was used for the publication of Julkowska et al., 2017 (https://doi.org/10.1105/tpc.16.00680). The quantification of the root and shoot data was performed with custom developed tool at King Abdullah University of Science and Technology, during Magdalena Julkowska's Postdoc, under supervision of Dr. Mark Tester.