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प्रश्न
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?
उत्तर
i. a. Pruning is done to remove apical dominance in plants.
b. When plants are decapitated, removal of apical bud results in growth of lateral buds which gives bushy appearance to plants.
c. Thus, pruning is done to encourage growth of more shoots with softer leaves.
ii. The gardener should be aware of the property of apical dominance.
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संबंधित प्रश्न
What is Parthenocarpy?
A plant hormone related with inhibition of senescence is
Auxins are abundantly produced in
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 :
Name one plant hormone which inhibits the said phenomenon.
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.
Which hormone promotes the production of male flowers in Cucurbits?
Apical dominance refers to ____________.
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 |
The box given below contains twelve words. Out of these, ten can be arranged in five suitable matching pairs. Make these five pairs in the form of a table.
| Auxins, Abscisic acid, Fruit ripening, Cytokinins, Closure of stomata, Parthenocarpy, Ethylene, Gibberellins, Tropism, Stem elongation, Cuscuta, Cell division. |
