1Division of Plant Pathology, Central Potato Research Intitute, Simla-171001.
*Present address: Central Potato Research Station, Mukteswar-263138.
Rabbits were immunized intramuscularly with PVX antigen emulsified in Freund's complete adjuvant and liquid paraffin as against the control (antigen without adjuvant). Both the adjuvants were found effective over the control. Freund's adjuvant increased the antisera titre more than that with liquid paraffin and maintained high antibody level for longer period.