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प्रश्न
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by ______.
पर्याय
Wind
Bat
Bee
Water
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उत्तर
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by wind.
Explanation:
Wind-pollinated flowers frequently have a single ovule in the ovary and are packed in an inflorescence. Pollen, which is lightweight and easily transported to other flowers by the wind, is usually produced in great quantities by these flowers. The crowded arrangement of an inflorescence increases the likelihood of successful wind pollination, and the single ovule guarantees that just one seed will grow following pollination. Grass and certain trees, such as pines, are examples of such plants.
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संबंधित प्रश्न
Lever mechanism of pollination is observed in
- Salvia
- Jasmine
- Bougainvillea
- Butea
A flower of tomato plant following the process of sexual reproduction produces 200 viable seeds.
Answer the following questions giving reasons :
(a) What would have been the minimum number of ovules present in pre-pollinated pistil ?
(b) How many microscope mother cells would minimally be required to produce requisite number of pollen grains ?
(c) How many pollen grains must have minimally pollinated the carple ?
(d) How many male gametes would have used to produce these 200 viable seeds ?
(e) How many megaspore mother cells were required in this process ?
Give the floral adaptations for anemophily.
Write different modes of pollination in detail with suitable examples.
Give an account of any two biotic agents for pollination along with their adaptations.
Chief pollinators of agricultural crops are ______.
Even in absence of pollinating agents seed-setting is assured in ______.
The flower which does not open at all are called ______.
Autogamy can occur in a chasmogamous flower if ______.
Mention any one example of the anemophilous flower.
