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प्रश्न
Briefly discuss any two methods by which plants avoid self-pollination.
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उत्तर
The two methods to avoid self-pollination are:
- Dichogamy - In bisexual flowers, anthers and stigma mature at different times. Due to these maturation times, self-pollination is not possible.
- Prepotency - In numerous plants, pollen grains from one flower easily germinate on the stigma of another flower that is genetically distinct, as opposed to pollen grains from the same flower. This prevents self-pollination.
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संबंधित प्रश्न
Lever mechanism of pollination is observed in
- Salvia
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- Bougainvillea
- Butea
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Very short answer type question:
What is hydrophily?
Which type of flower has ovary superior?
Which one of these statements is incorrect?
The following statements seem to describe the water-pollinated submerged plants.
Pollination in water lilies is carried out by ______.
Mention any one example of the hydrophilous flower.
What is epihydrophily?
