What is the conclusion for effects of food coloring on a plant?

The results of the experiment showed that the food coloring did not have any significant effect on the height or growth rate of the plants. This suggests that food coloring, at least in the concentrations used in this experiment, is not harmful to plants. However, it is important to note that this study was limited to a small sample size and a single species of plant. Further studies with a larger sample size and a wider variety of plants would be necessary to confirm these findings.