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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
Name the part of the flower which the tassels of the corn- cob represent.
Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.
What is the bagging technique?
Give the floral adaptations for anemophily.
Define the term Pollinating.
Select and write the most appropriate answer from the given alternatives for the following subquestion:
A versatile anther is an adaptation for _______ type of pollination.
Which one of the following is one of the characteristics of self-pollinated flowers?
Give one word/term for the following:
Pollination of flowers by insects.
Describe the advantages and disadvantages of cross-pollination to the plant.
Differentiate between geitonogamy and xenogamy (allogamy).
Can a plant flowering in Mumbai be pollinated by pollen grains of the same species growing in New Delhi? Provide explanations to your answer.
Name the two types of pollination.
Differentiate Between Cross Pollination and Self Pollination:
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 ______.
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by ______.
A dioecious flowering plant prevents both ______.
Pollination occurs in ______.
Triple fusion in Capsella bursa pastoris is fusion of male gamete with ______.
In some plants anther and stigma mature at the same time this condition is called ______.
During Hybridization process anther of the bisexual flower is removed before it dehisces is called ______.
In the dioecious aquatic plant shown, identify the characteristics of the male flowers that reach the female flowers for pollination:
| Size of the flower | Colour of flower | The characteristic feature of pollen grain | |
| A | small | brightly coloured | Lightweight and non-sticky |
| B | large | colourless | large and sticky |
| C | small | white | small, covered with mucilage |
| D | large | colourless | non-sticky |
Which type of pollination does the figure indicate?
Pollination in water lilies is carried out by ______.
Name the following:
One plant each of Hypohydrophily and epihydrophily.
Comparatively a large amount of pollen grains are wasted during ______.
Which one of the following flower is hypohydrophilous?
In sea grass, pollens are long, ribbon like and without exine exhibiting ______ pollination.
