The site of perception of light in plants during photoperiodism is:

Match the following concerning the activityl function and the phytohormone involved.
(A) Fruit ripener
(I) Abscisic acid
(B) Herbicide
(II) GA₃
(C) Bolting agent
(III) 2, 4-D
(D) Stress hormone
(IV) Ethephon
Select the correct option from following

Who coined the term 'Kinetin'?

Formation of interfascicular cambium from fully developed parenchyma cells is an example for

Auxin is used gardeners to papers weed-free lawns. But no damage is caused to grassas auxin.

Spraying sugarcane crop with which of the following plants growth regulators, increases the length of stem, thus, increasing the yield?

Interfascicular cambium develops from the cells of:

Auxin can be bioassayed by:

Fruit and leaf drop at early stages can be prevented by the application of

Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants:

The plant hormone used to destroy weeds in a field is