Figure 1. Salt stress impacts on root volume are alleviated by treatment with biostimulant seaweed extract (SWE), and increased peroxidase activity is observed in salt tolerant soybeans at 0.1 M NaCl (-SWE): A-B) .

Images of salt tolerant Manokin and salt sensitive Clark individuals at the end of the growth period across all salinity levels. C) Average root volume of Manokin and Clark seedlings for each treatment. (+) SWE replicates were foliar sprayed with 10 mL of Maxicrop Liquid Seaweed solution each week and volume was measured by water displacement. * indicates that a T-test yielded a significant difference (p < 0.05) between the means. Error bars represent standard error. D-E) Images of salt tolerant Manokin and salt sensitive Clark root mass at the end of the growth period across all salinity levels. F) Average peroxidase activity in Manokin and Clark seedlings for each treatment. (+) SWE replicates were foliar sprayed with 10 mL of Maxicrop Liquid Seaweed solution each week. Peroxidase activity was measured after 30 days using leaf tissue samples (* indicates that a T-test yielded a significant difference (p < 0.05) between the means). Error bars represent standard error.