Question

In addition to auxins________must be supplied to culture medium to obtain a good callus in plant tissue culture,

Answer 1

Answer:

In callus, shoot regeneration is promoted by a cytokinin, such as BAP (Benzylaminopurine) and root regeneration is promoted by an auxin, such as NAA (Naphthalene acetic acid). ... Usually, an excess of auxins promote root regeneration and that of cytokinins promote shoot regeneration. So the correct answer is 'cytokinins'.