Root colonization at GS 13 for both treated and untreated plants remained stable over the years (Table 4; P ¼ 0.1983 and P ¼ 0.2906, respectively) with higher values for treated plants (Fig. 1A).
Root colonization at GS 13 for both treatedand untreated plants remained stable over the years (Table 4;P ¼ 0.1983 and P ¼ 0.2906, respectively) with higher values fortreated plants (Fig. 1A).