Fig. 6.

Influence of seed priming with different concentrations of nZVI on a AGR, b CGR, c NAR of rice plants after maturity (1st harvest—on 30 DAS, 2nd harvest—on 60 DAS, 3rd harvest—at maturity). Data represent the means of five replicates and error bars represent standard error. Means with the same letters are not significantly different (Tukey’s HSD multiple comparisons at p ≤ 0.05). Significant differences between session 2018 and 2019 plants are indicated by symbol ‘*’ as obtained from unpaired t test analysis