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प्रश्न
What are the parameters used to measure growth of plants?
टीपा लिहा
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उत्तर
- Increase in length or girth (roots and stems)
- Increase in fresh or dry weight
- Increase in area or volume (fruits and leaves)
- Increase in the number of cells produced.
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संबंधित प्रश्न
______ is a powerful growth inhibitor.
Select the correctly matched one.
| A) Human urine | i) Auxin –B |
| B) Corn gram oil | ii) GA3 |
| C) Fungus | iii) Abscisic acid II |
| D) Herring fish sperm | iv) Kinitin |
| E) Unripe maize grains | v) Auxin A |
| F) Young cotton bolls | vi) Zeatin |
Write the physiological effects of Cytokinins.
In unisexual plants, sex can be changed by the application of ____________.
Substances which originate at the tip of the stem and control growth elsewhere are ______.
The plant hormone used to destroy weeds in a field is ______
Auxin is used by gardeners to prepare weed-free lawns. But no damage is caused to grass as auxin.
Which one of the following phytohormones promotes nutrient mobilisation which helps in the delay of leaf senescence in plants?
Read the following statements on plant growth and development.
- Parthenocarpy can be induced by auxins.
- Plant growth regulators can be involved in promotion as well as inhibition of growth.
- Dedifferentiation is a pre-requisite for redifferentiation.
- Abscisic acid is a plant growth promoter.
- Apical dominance promotes the growth of lateral buds.
Choose the option with all correct statements.
