Question

Hormone used in tissue culture for better growth is

• A. Gibberellin
• B. Auxin
• C. Cytokinin
• D. Both B and C

Answer 1

Answer: (D)

Both B and C

The hormone used in tissue culture for better growth is auxin and cytokinin. The explant is cultured on the nutrient media. It turns into callus which is a mass of undifferentiated cells. Callus when treated with auxin it promotes rooting and when it is treated with cytokinin it stimulates cell maturation, differentiation and finally, promotes the development of stem. After formation of the stem, it differentiates into the different vegetative plant.

Gibberellin is a plant growth promoter which helps to remove dwarfism and also promotes seed germination and inhibit seed dormancy.

So, the correct answer is option D.