What are the agents in pollination?

Answer 1

Agents of Pollination

Introduction of agents of pollinationWhen the pollen grains are shed from anther, they are disseminated by arios agencies. Some of them may, by one means or another, finally reached the stigma of a pistil, either of same or another flower. This transfer of pollen from anther to stigma is called pollination. Agents of pollination are wind, water, insects, birds and bats. Description of Agents of Pollination

1. Wind (anemophily): Wind is one of the most important agents of pollination. Pollination brought about through agency of wind in plants is called anemophily. Wind pollinated plants are coconut palm, date palm, cannabis, maize, grasses etc. exhibit the following characters which favour the wind pollination.

a) Wind pollinated flowers are inconspicuous and not showy.

b) They are devoid of scent, nectar etc.

c) The pollen grains are dry and unwettable.

d) The anemophilous plants grow in large groups to ensure pollination.

e) To catch the pollen grains, the stigma become sticky, hairy, and feathery or branched.

2. Water (Hydrophily): Pollination brought about through the agency of water in plants especially submerged plants is termed hydrophily. Examples are Hydrilla, Ceratophyllum, Zostera and Vallisneria are some of the water pollinated plants.

3. Insects(Entomophily): Inset pollinated flowers possess following characteristic features

a) The insect pollinated flowers are fragrant and omit sent and odour. Example Cestrum, Jasmine etc. Rafflesia gives out obnoxious and repelling odour.

b) The insect pollinated flowers are beautifully coloured. In flowers, mostly petals are brightly coloured.

c) The nectariferous glands produce nectar for feeding the visiting insects.

d) To catch the pollen grains, the stigmas become sticky.

4. Birds (ornithophily): Ornithophilous flowers differ in number of respects from entomophilous flowers. These kind of flowers are generally scentless. The flowers are usually large in size. They are also beautifully coloured with colour contrasts and are common colours liked by birds.

5. Bats (Chiropterophily): The flowers of Kigella pinnata, Durio, Antocephalus are pollinated by bats. The bats hold on to the freely exposed, large and relatively tough flowers, which open in the evening or night. Bats are nocturnal animals and transport pollen over long distances. They usually give off a strong scent like that of rotting fruits. Bats also feed on the copious nectar and pollen which is produced in plenty as compared bird pollinated flowers.

Answer 2

Plants often entice animals to help spread their pollen. Some animals who help pollinate include insects (bees, ants, flies, butterflies, etc), birds, and humans. Some plants rely on the wind to spread their pollen from plant to plant.

Answer 3

1. wind
2. water
3. insects
4. birds
5. mammals

Answer 4

Bees, birds, and other animals, as well as wind are all agents of pollination. Animals can come in contact with the pollen produced by flowering parts of plants, and inadvertently carry it (as it gets stuck to surface features of the animal, such as hairs/fur, skin, etc.) and help to transport the pollen. In the process, pollen can be transferred from plant to plant. Wind can transport pollen more passively as well.

Answer 5

Mainly insects, but in some special cases, water and and even wind. More here: http://en.wikipedia.org/wiki/Pollination

Answer 6

Bees, hummingbirds, wasps, and butterflies pollinate flowers.

Answer 7

Agents Pollination are insects, birds, water and wind. They helps in Pollination transferring pollen grains from the anther of a stamen to the stigma of a carpel .

Answer 8

Pollination refers to the transfer of pollen grains from the anther of a stamen to the stigma of a carpel. Agents of Pollination are insects, birds, water and wind.