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प्रश्न
What is bagging technique?
उत्तर
Various artificial hybridisation techniques (under various crop improvement programmes) involve the removal of the anther from bisexual flowers without affecting the female reproductive part (pistil) through the process of emasculation. Then, these emasculated flowers are wrapped in bags to prevent pollination by unwanted pollen grains. This process is called bagging.
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संबंधित प्रश्न
List the different types of pollination depending upon the source of pollen gain.
A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds.
Answer the following questions giving reasons :
(a) What is the minimum number of pollen grains that must have been involved in the pollination of its pistil?
(b) What would have been the minimum number of ovules present in the ovary?
(c) How many megaspore mother cells were involved?
(d) What is the minimum number of microspore mother cells involved in the above case?
(e) How many male gametes were involved in this case?
Name two characteristics of flowers in which pollination occur by wind.
Can a unisexual flower be self pollinated?
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.
What are the adaptations which are required in cross-pollinated
Mention various adaptations for wind pollination.
For which of the following attractants and rewards are required?
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 ______.
Pollination occurs in ______.
Both chasmogamous and cleistogamous flowers are present in ______.
Plants with ovaries having only one or a few ovules are generally pollinated by ______.
Triple fusion in Capsella bursa pastoris is fusion of male gamete with ______.
Which type of flower has ovary superior?
Autogamy can occur in a chasmogamous flower if ______.
From among the situations given below, choose the one that prevents both autogamy and geitonogamy.
Describe any three adaptations in hydrophilous flowers.
Mention any one example of the hydrophilous flower.
Name the following:
Aquatic plants which are anemophilous.
