Which of the following is NOT a function of abscisic acid (ABA)?

A gardener uses a synthetic auxin to control broadleaf weeds in his lawn. The grass, a monocot, remains unaffected. This is primarily due to:

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

Which hormone was first isolated from human urine?

Ageing is retarded by

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

Which plant hormone is found in gaseous form?

The plant hormone used to destroy weeds in a field is

Hormone replacing the requirement of vernalization is

The plant hormone produced by Rhizobium for nodulation is

Study the following statements

I. ${O_2}$ helps in releasing metabolic energy, which is essential for growth

II. Nutrients are required by plants for the synthesis of protoplasm

III. Change in temperature could be the detrimental for the survival of an organism

IV. Light and gravity don’t affect the stages of growth

Choose the correct option