Similarity of Some Kinetin and Red Light Effects.

Abstract
When applied in darkness, kinetin (6-furfurylamino-purine) caused several growth effects similar to those brought about by exposure to red light. Thus kinetin promoted expansion of etiolated bean leaf disks, promoted germination of Grand Rapids lettuce seeds, inhibited elongation of etiolated pea stem segments, and increased the growth of upper parts of dark-grown bean seedlings. Since flowering in many plants may be controlled by red light, as are the above growth phenomena, it is suggested that kinetin also may affect flowering in such plants.