Plant Growth Regulators
Plant Growth Regulators: Overview
This topic covers concepts, such as, Ethephon,Applications of Gibberellin,Physiological Effects of Ethylene etc.
Important Questions on Plant Growth Regulators
The plant hormone controlling fruit ripening is

Which of the following induces dormancy?

Which of the following hormone induces cell division?

Coconut water is abundant in which of the following plant growth regulator?

Induction of cell division and delay in senescence is done by

In plant, auxin synthesis occurs in

Bean seeds were planted and put on a sunny windowsill. As the plants grew, their stems bent toward the window. This bending was most likely caused by an

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

Pruning of plants promotes branching because the axillary buds get sensitized to:

Seed and bud dormancy can be induced by

What is the difference between auxins and abscisic acid?

Which hormone promotes internode / petiole elongation in deep water rice?

Spraying of which of the following phytohormone on juvenile conifers helps in hastening the maturity period, that leads to early seed production?

N6 furfuryl amino purine is which plant growth promoter?

Removal of auxin source demonstrates that leaf abscission is _____ by auxin, and apical dominance is ______ by auxin.

Which of the following statements are false regarding ethephon?
A) A source of ethylene.
B) It is slowly absorbed and transported within the plant to release ethylene rapidly.
C) It causes reduced abscission in flowers and fruits of cotton.
D) Supresses the internode elongation in deep water rice plants.

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

A fruit is green when unripe but becomes beautifully coloured when ripe. How does this change occur?

Who invented auxin?

Which is employed for artificial ripening of banana fruits?
