question_answer

For a successful graft, the adhesion between stock and scion is a must. Which one of the following is the earliest event towards a good graft                                       [CBSE PMT 1990]

A) Production of plasmodesmata in the cells at the interface of stock and scion

B) Coordinated differentiation of vascular tissue between the stock and scion

C) Regeneration of cortex and epidermis over the union of stock and scion

D) Production of callus tissue between the cells of stock and scion