After 3 days of treatment, plates were scanned with CCD flatbed scanners (EPSON Perfection V600 Photo, Seiko Epson, Nagano, Japan), and images used to quantify root parameters with FIJI, by using the
= 3 replicates) dry mass, lateral extent, plant height, and size index for the ten target species, listed in order of increasing size index. Nomenclature follows Gleason and Cronquist (1991). Mean (N
