List of top Biology Questions on plant growth and development

What is differentiation and redifferentiation?
In plants, which of the following hormones is primarily responsible for promoting cell elongation in stems?
Which of the following hormone is antitranspirant?
What is the period of mammals called?
(Geological time scale)
Adventive embryony is seen in which plants?
Function of vegetative and generative cell.
What is the artificial method of vegetative propagation?
Which acid is responsible for enlargement of ovary into fruit?
The first step in plant growth is
Examples of propagation by stem are:

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

In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as

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

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 gaseous plant growth regulator is used in plants to:
Which of the following elements are considered as micro-elements for plant growth ?

Mutations in plant cells can be induced by

Identify the incorrect statement/s.
1. Kinetin is a derivative of Adenine which is a pyrimidine.
2. The technique of decapitation is widely used in tea plantations.
3. Ethylene is a gaseous plant hormone.
4. Use of GA3 hastens the malting process in brewing industry.
5. ABA is a growth promoter.
During an excavation of soil, Pollen. fossils were retrieved from deepest layer of soil. The pollen grains remained as fossils because
Which of the following is not an inhibitory substance governing seed dormancy ?
It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout, the year to increase yield ?
It takes very long time for pineapple plante to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?
In plants, Richmond - Lang effect is
Which of the following is not a plant growth inhibitor
Lichens do not like to grow in cities