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प्रश्न
Name the following:
Growth-retarding hormone in plants.
Give One Word Answer.
Growth retarding hormone in plants.
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उत्तर
Abscisic acid
संबंधित प्रश्न
Which of the following is not a plant hormone?
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 |
A farmer is fed up of weeds in his Wheat farm. Which of the following chemicals he can use to overcome the problem?
Gibberellins are synthesised from ______.
Match the column A with B
| A | B | |
| i. | Epinasty of flower | GA3 |
| ii. | Natural auxin | NAA |
| iii. | Flowering in Litchi | IAA |
| iv. | Bolting of Beet | Ethylene |
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.
Write full form of 2,4-D
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?
Give one example of Parthenocarpy.
Differentiate between:
Stimulus and response
