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प्रश्न
Very Short Answer Question:
What is role of gibberellin in rosette plants?
उत्तर
Gibberellin promotes bolting i.e. elongation of internodes just prior to flowering in plants with rosette habit e.g. beet, cabbage.
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संबंधित प्रश्न
Match the items in column A with those of column B.
| Column A | Column B | ||
| (a) | Auxin | (i) | apical dominance |
| (b) | Gibberellin | (ii) | cell-division |
| (c) | Cytokinin | (iii) | fruit ripening |
| (d) | Ethylene | (iv) | internodal elongation |
Name the following:
Hormone that stimulates growth by cell division.
The figure given below shows the stages of ripening in a banana. Answer the question that follow:
Mention two characteristic features of this hormone.
A farmer is fed up of weeds in his Wheat farm. Which of the following chemicals he can use to overcome the problem?
A gardener wants to give bushy appearance to plants in our college campus.
- What should he do to achieve the same?
- Which property of phytohormones he must be aware of?
Coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly cut coleoptile stumps.
What is the significance of the above experiment performed by Dr. F. Went?
Identify the INCORRECT statement regarding physiological effects of ethylene.
Name various plant hormones. Also give their physiological effects on plant growth and development.
The only phytohormone which is a gas at ordinary temperature:
Define the following term:
Phytohormones
