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प्रश्न
Answer the following question.
Express the process of pollination in Vallisneria.
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उत्तर
Vallisneria grows in freshwater and is pollinated by water. It is a type of pollination known as hydrophily. The female flowers reach the surface of the water by a long stalk while the pollen grains are released on the surface of the water. These are passively carried by water currents to reach the stigma of the female flowers. Pollen grains of such plants are covered by mucilage which protects them from wetting.
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संबंधित प्रश्न
Describe the characteristic features of wind pollinated flowers.
What is self-incompatibility?
What is meant by emasculation?
- Nucellus
- Antipodals
- Synergids
- Micropyle
A particular species of plant produces light, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by ______.
Correct definition of pollination is ______
Mention any one example of the anemophilous flower.
Describe any three adaptations in hydrophilous flowers.
What is hypohydrophily?
What are the major abiotic factors that influence habitat?
