Q.The development of root from the callus is called :

Organogenesis is the plant regeneration pathway in which morphological changes within callus tissue lead directly to the formation of shoots and roots, rather than to an embryo-like structure the way somatic embryogenesis does. Shoot formation from callus is specifically called caulogenesis and root formation is called rhizogenesis; because a complete, functional plantlet needs both, organogenesis protocols typically induce shoots first and root formation afterward, on a separate medium formulation. Organogenesis is triggered in vitro by adding plant growth regulators to the MS medium, and which organ forms is largely controlled by the relative balance of two hormone classes: auxins and cytokinins together induce shoot and root formation, with a higher cytokinin-to-auxin rati …