Fig. 4
Primary root length of A. thaliana on day-2, day-4 and day-7 post treatments. a Each bar represents the mean ± SE of ten replicate plants, taken from three Magenta boxes. * Significant difference (P ≤ 0.05) in data between NS + NI and any other treatment within a particular day of analysis. ! Significant difference (P ≤ 0.05) between WS + I and WS + NI samples within a particular day of analysis. Statistical analysis was done to compare data between two different treatments by Student’s t-test (two-tailed analysis, P ≤ 0.05) using Microsoft Excel 2010. b Observation on primary root length of one replicate plant from each of the four treatments. In both a and b, d-0 represents the time period just before treatments (the respective treatments in the x-axis indicate sets of plants thereafter transferred to Magenta boxes for those treatments)