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प्रश्न
What are the adaptations which are required in cross-pollinated
उत्तर
Adaptations required by self-pollinated plants are:
(i) Bisexuality - Self-pollination occurs only in bisexual flowers.
(ii) Homogamy - Both anther and stigma need to mature at the same time.
(iii) Cleistogamy - Flowers which are bisexual and never open are called cleistogamous flowers. They are small, colourless, odourless and without nectar. The pollen grains fall on the stigma inside the closed flower. Example - Arachis
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संबंधित प्रश्न
Lever mechanism of pollination is observed in
- Salvia
- Jasmine
- Bougainvillea
- Butea
What is self-incompatibility?
Fill in the blanks:
The two kinds of pollination are __________ and __________.
Find the odd-one out, giving reason:
Ovary, style, pollen grain, stigma
Name of the parts of the ovary which give rise to:
Fruit wall ______
When maturation time of reproductive parts in a flower is different.
Answer the following question.
Can a plant flowering in Mumbai be pollinated by pollen grains of the same species growing in New Delhi? Provide explanations to your answer.
Which type of pollination does Figure 12.1 indicate?
Which one of the following may require pollinators, but is genetically similar to autogamy?
Pollination in water lilies is carried out by ______.