Advertisements
Advertisements
प्रश्न
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by ______.
पर्याय
Wind
Bat
Bee
Water
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
As a senior biology student you have been asked to demonstrate to the students of secondary level in your school, the procedure(s) that shall ensure cross-pollination in a hermaphrodite flower. List the different steps that you would suggest and provide reasons for each one of them.
Enlist advantages and disadvantages of cross pollination
Differentiate between geitonogamy and xenogamy (allogamy).
- Nucellus
- Antipodals
- Synergids
- Micropyle
Mention various adaptations for wind pollination.
Consider the following statements depicting adaptation of flowers to carryout successful pollination.
- Stigma is long, sticky and unwettable.
- Sepals, petals or perianth (if present) have waxy coating.
- Stamens with long filament and versatile anthers.
- Tubular corolla is seen.
- Flowers are noctumal.
Which of the above statements clearly depict hydrophily?
Pollination in water lilies is carried out by ______.
What is epihydrophily?
Complete the following table:
| Sr. | Type of pollination | Agent | Kind of flower | Examples |
| (i) | ______ | Wind | ______ | Maize |
| (ii) | Chiropterophily | ______ | Dull colour, with strong fragrance, abundant nectar | Adansonia |
| (iii) | Entamophily | Insects | ______ | Rose/Jasmine |
| (iv) | Ornithophily | ______ | Brightly coloured, large and showy. They secrete profuse, dilute n ectar | ______ |
When and why does a plant breeder employ the emasculation technique?
