Natural cytokinins are synthesized in tissue that are
a)	Senescent	b)	Dividing rapidly	c)	Storing food material	d)	Differentiating

(b)

Cytokinins are produced in actively growing tissues such as embryos, developing fruits and roots. cytokinins have so far been extracted from coconut milk (liquid endosperm), tomato juice, ect. In conjugation With auxins, they stimulate cell division even in permanent tissue. The root and auxin ratio.