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प्रश्न
Mention various adaptations for wind pollination.
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उत्तर
Adaptations in anemophilous flowers:
- The flowers are small, inconspicuous, colourless, without nectar and fragrance (odour).
- The pollen grains are light in weight, dry and produced in large numbers to increase chances of pollination considering wastage of pollen grains.
- Stigma is feathery to trap pollens carried by wind currents.
- Stamens are exserted with long filaments and versatile anthers.
- Stamens and stigmas are exposed to air currents.
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संबंधित प्रश्न
Why angiosperm anthers are called dithecous?
Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.
What is meant by emasculation?
What is meant by pollination?
Fill in the blanks:
The two kinds of pollination are __________ and __________.
Put a tick mark (✓) against the correct alternative in the following statements
Vegetative propagation is not observed in:
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by ______.
Anemophily type of pollination is found in ______.
The flower which possesses both androecium and gynoecium is called perfect or ______.
Match the Column I with Column II.
| Column I | Column II |
| A. Pea | (i) Xenogamy |
| B. Jawar | (ii) Epihydrophily |
| C. Maize | (iii) Anemophily |
| D. Vallis | (iv) Bisexual |
| E. Cannabis | (v) Geitonogamy |
