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प्रश्न
What is meant by emasculation?
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उत्तर
Emasculation is the removal of stamens, mainly the anthers, from the flower buds before their dehiscence. The removal is mainly done to avoid self-pollination. Emasculation is one of the measures in the artificial hybridization.
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संबंधित प्रश्न
Lever mechanism of pollination is observed in
- Salvia
- Jasmine
- Bougainvillea
- Butea
With the help of a suitable example, explain protandry.
Describe the characteristic features of wind pollinated flowers.
List the different types of pollination depending upon the source of pollen gain.
Make a list of any three outbreeding devices that flowering plants have developed and explain how they help to encourage cross-pollination.
Why angiosperm anthers are called dithecous?
Draw a diagram of a section of a megasporangium of an angiosperm and label funiculus, Micropyle, embryosac and nuclleus.
Write two ways in which pollination may occur in plants.
State the name of the chief pollinating agent against the corresponding plant by choosing from those given in brackets.
Dahlia_______ .
Give one word/term for the following:
Pollination of flowers by birds.
Answer the following question.
Express the process of pollination in Vallisneria.
Write different modes of pollination in detail with suitable examples.
Differentiate Between Cross Pollination and Self Pollination:
What are the adaptations which are required in self-pollinated plants?
What are the different adaptations shown by bird-pollinated flowers?
Explain water pollination in detail with its types.
For which of the following attractants and rewards are required?
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by ______.
Which of the following pair has haploid structures?
Anemophily type of pollination is found in ______.
Feathery stigma occurs in ______.
Which type of flower has ovary superior?
Advantage of cleistogamy is:
What is self-incompatibility?
What is ornithophily?
What is hypohydrophily?
What is epihydrophily?
When and why does a plant breeder employ the emasculation technique?
