Plant Growth Regulators

The plant hormone controlling fruit ripening is

Which of the following induces dormancy?

Which of the following hormone induces cell division?

Induction of cell division and delay in senescence is done by

In plant, auxin synthesis occurs in

Avena curvature test is a bioassay for examining the activity of<

Select the correct option regarding the phytohormone to which the given molecular structure belongs.

Cytokinins are derivatives of __________.

The growth hormone used in breaking dormancy and inducing flowering is ______.

Which hormone initiates chloroplast formation in presence of light?

Match the following

A substance isolated from herring sperm DNA and named as 'kinetin' by

Storage sprouting of potato can be prevented by

A substance which is used to stimulate the increase in size of the apple fruit is

Antiauxin used in picking cotton balls is

Assertion : Stratification of seeds may promote their germination.

Reason Stratification promote gibberellin and cytokinins.

Assertion : Agent orange is a mixture of $2,4-\mathrm{D}$ and $2,4,5-\mathrm{T},$ used during Vietnam War.

Reason:  $2,4-\mathrm{D}$ and $2,4,5-\mathrm{T}$ are used as herbicides.

Seed dormancy can be broken by the following combination of chemicals

Which of the following enhances or induces fusion of protoplasts

One hormone hastens maturity period in juvenile conifers, a second hormone controls xylem differentiation, while the third increases the tolerance of plants to various stresses they are respectively