The plant hormone which counteracts apical dominance is

Plant hormones which show the antagonist effects to auxin w.r.t. apical dominance is

Surface area of roots by promoting roots growth and root hair formation is increased by

One of the synthetic auxin is

After a series of experiments, it was concluded that the …A… of coleoptile was the site of transmittable influence that caused the …B… of the entire coleoptile.

Complete the given statement with the correct combination of options given in the codes below

The chemical nature of gibberellins is

Study the following question

I. Who was the first to confirm the release of volatile?

Substance from ripened organs of plants?

II. Who discovered kinetin from herring sperm?

III. Who discovered GA?

Which of the following option correctly answer the given questions?

Which one is first to be discovered ?

Indentify two of the following phytohormones, which regulate the stomatal movements?

     I.IAA                                II.  $G{A_3}$

III. Zeatin IV. ABA

Photoperiodism was first characterized in

The ripening of fruits can be fastened by treatment with