“…In addition, these fitness metrics can be easily applied across taxa to answer comparable questions across multiple species (Younginger et al., 2017 ). To investigate the relationship between substrate sodium and biomass changes, we retained 49 studies that reported aboveground and belowground dry biomass as well as aboveground and belowground sodium tissue concentration for a total of 107 cultivars, strains, or varieties (herein populations) of plants, in 67 species, 43 genera, and 20 families, across 16 orders (Table S1) (Abdallah et al, 2016 , Al Sherif, 2009 , Ashraf and Ahmad, 2000 , Ashraf et al, 2001 , Assaha et al, 2013 , Barhoumi et al, 2007 , Bayuelo‐Jiménez et al, 2003 , Ben Hamed et al, 2014 , Chartzoulakis et al, 1995 , Ebrahimi and Bhatla, 2011 , Ferreira et al, 2001 , Gebauer et al, 2004 , Gorai et al, 2007 , Gul et al, 2010 , Gulzar et al, 2003 , Hamilton et al, 2001 , Kafi and Rahimi, 2011 , Kchaou et al, 2010 , Keling and Zhujun, 2010 , Khan et al, 2001 , Khan et al, 2000a , Khan et al, 2000b , Khan et al, 2000c , Kim et al, 2012 , Manivannan et al, 2008 , Moghaieb et al, 2001 , Mori et al, 2006 , Naidoo, 1994 , Nedjimi, 2009 , Nedjimi, 2014 , Parida et al, 2016 , Qureshi et al, 2007 , Rejili et al, 2007 , Renault et al, 2001 , Ruiz et al, 1997 , Sanadhya et al, 2015 , Shaheen et al, 2013 , Shereen et al, 2007 , Sohail et al, 2009 , Taffouo et al, 2010 , Tammam et al,…”