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प्रश्न
The only phytohormone which is a gas at ordinary temperature:
पर्याय
Ethane
Ethyl alcohol
Ethylene
Ethyne
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उत्तर
Ethylene
Explanation:
The only hormone that is gaseous at standard temperature is ethylene.
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संबंधित प्रश्न
Which of the following hormones regulate stomatal colour?
The figure given below shows the stages of ripening in a banana. Answer the question that follow:
Mention two characteristic features of this hormone.
Very Short Answer Question:
What is role of gibberellin in rosette plants?
A farmer is fed up of weeds in his Wheat farm. Which of the following chemicals he can use to overcome the problem?
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.
Name the phytohormone related with the given phenomenon.
- Apical dominance
- Bolting of Cabbage
- Artificial ripening of fruit
- Acts as Anti-transpirant by closing stomata
Flowering in pineapple is promoted by ____________.
Match the following lists and select the correct option.
| List I | List II | ||
| i. | 2,4-D | a. | Promotes senescence and ripening of fruits |
| ii. | ABA | b. | DelaysJeaf senescence |
| iii. | Gibberellins | c. | Increases the length of the sugarcane stem |
| iv. | Ethylene | d. | Kills dicotyledonous weeds without affecting mature monocotyledonous plants |
| e. | Stimulates the closure of stomata |
Name the plant hormones responsible for the following
- elongation of cells
- growth of stem
- promotion of cell division
- falling of senescent leaves.
Which one of the following pair of plant hormones inhibit flowering in some plants?
