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The transfer of pollen from a stamen to a pistil; fertilization in flowering plants. It takes place through self-pollination or cross-pollination. Please note that this answer refers specifically to pollination of angiosperms and gymnosperms.
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Self-pollination
From Wikipedia:
Self-pollination is a form of pollination that can occur when a flower has both stamen and a carpel in which the cultivar or species is self fertile and the stamens and the sticky stigma of the carpel contact each other to accomplish pollination. The term is inaccurately used in many cases where an outside pollinator is actually required; such plants are merely self fertile, or self pollenizing.
Few plants actually self pollinate. The mechanism is seen most often in some legumes such as peanuts. In another legume, Soybeans, the flowers open and remain receptive to insect cross pollination during the day; if this is not accomplished, the flowers self pollinate as they are closing.
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Cross-pollination
The process in which the pollen from the anther of the male flower of a plant comes into contact with the ovary of a female flower of another plant, resulting in pollination.
Methods/ Agents of cross-pollination are:
- Humans (Cultivation)
- Insects
- Wind
- Animals (Birds, bats)
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∙ 14y ago
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What is an example of pollination?
An example of cross pollination could be described as when the wind spreads the pollen from a purple daffodil to a red daffodil.
How does pollen grain reaches the ovary?
When pollen grains land on the stigma(funny stick thingo on a flower), it wil start to grow a pollen tube, towards the ovary and the ovules. Then it GOES THROUGH the tube and =============*FERTILISATION*=====================
How do wind pollination occurs?
On maturity of pollen grains , the anther lobes burst open and the pollen grains released in large amonut are carried by wind to several meters away to settle on feathery stigma as in case of plants of grass family.
After the pollen grains land on the stigma what begins to grow from a cell in the pollen?
the pollen tube
What bee structure observes pollen grains?
The bee sees pollen with its eyes. It carries pollen because the pollen stick to the hind legs!
What do bees eat in the summer?
I think because the pollen spreads more in the summer
How does the pollen tube reach the ovary?
one an insect or animals spreads it,it goes down the STIGMA and into the OVARY then into the OVULES
What is the function of a flower on a rose?
pollination. the flower's colors attract fauna that spreads it's pollen to other plants for germination.
What is an example of pollination?
An example of cross pollination could be described as when the wind spreads the pollen from a purple daffodil to a red daffodil.
What do plants need a flower for?
Plant flowers attract certain insects which spreads pollen around to other similar plants, resulting in seed production.
How does pollen grain reaches the ovary?
When pollen grains land on the stigma(funny stick thingo on a flower), it wil start to grow a pollen tube, towards the ovary and the ovules. Then it GOES THROUGH the tube and =============*FERTILISATION*=====================
How do Bumblebees keep the world in balance?
Bee's spread pollen from one flower to another. When the pollen spreads it helps the other plants grow. If the bee's were gone, all the plants would die. Then the animals would die. Then all we'ed have left is water and we would die!
What is the difference between the two types of reproduction?
Asexual reproduction: there is only one plant that spreads its roots and makes new plants out of those roots. All the plants that were made are connected with the "parent plant" by the root. Sexual reproduction: This occurs when pollen somehow travels by either wind, or an animal carrying it, and the pollen will make contact with another plant and a seed will be produced when the pollen is in contact with the Pistil. Pollen is also known as sperm for a plant. The pistil is also known as the "female" part of a flower which takes the pollen (sperm) and makes a seed out of it I hope I have helped! :)
How do wind pollination occurs?
On maturity of pollen grains , the anther lobes burst open and the pollen grains released in large amonut are carried by wind to several meters away to settle on feathery stigma as in case of plants of grass family.
What is the function of pollen grains?
Matured pollen grains contained sperm cells. When Pollen grains are sticky, you have pollen. Pollen grains are contained in the pollen sac, with the purpose of helping plants reproduce.
What the function of the pollen grains?
Matured pollen grains contained sperm cells. When Pollen grains are sticky, you have pollen. Pollen grains are contained in the pollen sac, with the purpose of helping plants reproduce.
What is another sentence with the word pollen?
I hate pollen! Pollen is annoying!!
