The role of PGRs is a kind of intrinsic control.

The cells of tracheary elements lose their protoplasm and become dead at maturity due to the deposition of lignocellulos…

The source of hormone ethylene is________

Which of the following processes lead to formation of callus in plant tissue culture carried out in a laboratory?

One single maize root apical meristem can give rise to how many new cells per hour?

The hormone which can replace vernalization is ___

Which of the following kinds of growth is exhibited by plants?

Which of the following is not a characteristic of the cell walls of root apex meristem?