Dr. F. Went noted that if coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of what significance is this experiment?

Through his experiments, F.W. Went identified relationship among the various concentrations of auxins and as a result the relative bending in coleoptiles. Therefore, we can say that these experiments formed the basis for quantitative determination of small amounts of growth-promoting substances.