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प्रश्न
What is self-incompatibility?
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उत्तर
Sexual incompatibility occurs when a pistil with functioning female gametes fails to establish seeds after pollination with viable and fertile pollen capable of fertilizing another pistil. Sexual incompatibility can arise between members of different species or within the same species. The condition is also known as self-incompatibility.
संबंधित प्रश्न
Name the part of the flower which the tassels of the corn- cob represent.
Why does self-pollination not lead to seed formation in self-incompatible species?
Enlist advantages and disadvantages of cross pollination
Add a note on pollination mechanism in Salvia.
Name two characteristics of flowers in which pollination occur by wind.
Fill in the blank:
Male sex cells in plants are called _________.
Find the odd-one out, giving reason:
Ovary, style, pollen grain, stigma
Define the term Pollinating.
Which one of the following is one of the characteristics of self-pollinated flowers?
Name of the part of the ovary which gives rise to:
Fruit ______
In bisexual flowers, maturation of gynoecium before androecium is known as ______.
Put a tick mark (✓) against the correct alternative in the following statements
Pollen is produced in the
Put a tick mark (✓) against the correct alternative in the following statements
Vegetative propagation is not observed in:
Write different modes of pollination in detail with suitable examples.
What are the adaptations which are required in cross-pollinated
What are the adaptations which are required in self-pollinated plants?
Both chasmogamous and cleistogamous flowers are present in ______.
Even in absence of pollinating agents seed-setting is assured in ______.
Plants with ovaries having only one or a few ovules are generally pollinated by ______.
Heterostyly as a contrivance for cross-pollination is found in ______.
Which type of flower has ovary superior?
Which type of pollination does the figure indicate?
Autogamy can occur in a chasmogamous flower if ______.
Choose the correct statement from the following:
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
Pollination in water lilies is carried out by ______.
Briefly discuss any two methods by which plants avoid self-pollination.
