The main function of the plant hormone called abscisic acid is to:

Which of the following is not caused by a growth movement?

The root of a plant is:

Options -

(i) positively phototropic but negatively geotropic

(ii) positively geotropic but negatively phototropic

(iii) negatively phototropic but positively hydrotropic

(iv) negatively hydrotropic but positively phototropic

The growth of tendrils in pea plants is due to the:

Which of the following phytohormone is not associated with the promotion of growth in plants?