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प्रश्न
Very Short Answer Question:
Which is the plant stress hormone?
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उत्तर
Abscisic acid (ABA) is the plant stress hormone
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संबंधित प्रश्न
How does chemical coordination occur in plants?
A plant hormone related with inhibition of senescence is
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 |
List five plant growth hormones and briefly describe their roles.
The tea plants are never allowed to grow lengthwise. This is done by cutting their apical buds, a process known as pruning. In this way, tea plants get a dense growth and easy yield. Answer the following question :
What plant hormone is responsible for the scientific phenomenon mentioned in 1.1.
Answer the following question.
What are plant hormones? Name the plant hormones responsible for the following:
- Growth of stem
- Promotion of cell division
- Inhibition of growth
- Elongation of cells
Gibberellins are synthesised from ______.
Write the name of______
- First hormone discovered in plants.
- Biological name of fungus from which Gibberellins were first isolated.
- The name given to the first cytokinin by Skoog and Miller.
Define the following term:
Phytohormones
Which one of the following pair of plant hormones inhibit flowering in some plants?
