Figure 7.

Macroscopic and microscopic analysis of control and treated germinated seeds of cucumber. The germinated control (seed on the left) shows the typical morphology of the primary and secondary roots, tegument, cotyledon, and hypocotyl can be observed. A morphological change can be observed in the germinated seeds treated with 2.5 mM of COL (seed on the right), a broader and shorter hypocotyl (gray arrow), and primary root blebbing formation of approximately 1–2 mm (solid circle), and secondary root inhibition (black arrows).