Figure 2
From: Foraging for selenium: a comparison between hyperaccumulator and non-accumulator plant species
Root density in Se-hyperaccumulator S. pinnata and non-accumulator B. juncea (both of Brassicaceae family). (a,d) control/control treatment; (b,e) control/selenite (30 mg kgDW−1) treatment; (c,f) control/selenate (30 mg kgDW−1) treatment. Reported percentages are the average of 8 biological replicates for each treatment (n = 8). The star symbol (*) indicates a significant difference in root density among the two halves after Student’s/Wilcoxon Rank Sum Tests (p < 0.05) (n = 8).
