MCQ on Plant Hormones

In tissue culture experiment to initiated shoots from the undifferentiated mass of cell the medium must contain:

Among the following which is NOT involved in the plant defence signaling pathway?

The factor responsible for the formation of early embryonic axis during early developmental pathway of plants is:

Aspirin delays senescence in cut parts of the plant and keeps flower fresh for longer time. The effect of aspirin is

Gibberellic acid stimulates seed germination in monocots by the activation of digestive enzymes by acting on:

Abscisic acid can be degraded by:

A tryptophan auxotroph in corn showed 50 times more accumulation of IAA than the normal. The probable explanation for this is:

Among the following which hormone can induce flowering in short day plants grown under long duration of light?

Parthenocarpic tomato fruits can be produced by:

How does pruning help in making the hedge dense?

Treatment of seed at low temperature under moist conditions to break its dormancy is called:

Which one of the following is NOT a plant hormone?

For the flower induction, the vernalization signal in plants is perceived mainly by:

Agrobacterium tumefaciens causes crown gall diseases in dicot plants. Which phytohormone genes are present on T‐DNA?

The “Foolish Seedling” disease of rice led to the discovery of: