What is the meaning of self pollination?

Answer 1

Self-pollination or autogamy---- pollen from stamen / anther moves to the female part, or stigma of the same flower, or to another flower on the same individual plant.

Clarity requires that the term "self-pollination" be restricted to those plants that accomplish pollination without an external pollinator (example: the stamens actually grow into contact with the pistil to transfer the pollen).

Most peach varieties are autogamous, but not truly self-pollinated, as it is generally an insect pollinator that moves the pollen from anther to stigma.

Plants adapted to self-pollinate have similar stamen and carpel length.


Cleistogamy-( It is a type of Self pollination ): pollination that occurs before the flower opens is always self-pollination.

Some cleistogamous flowers never open, in contrast to chasmogamous flowers that open and are then pollinated.

Cleistogamous flowers; must out of necessity, be self-compatible or self-fertile plants. Other plants are self-incompatible.

Now for some diagrams and pictures- click the links below-
http://www.life.uiuc.edu/help/digitalflowers/picts/Breeding%20Systems/05-Inbreeding.jpg

http://ecs.lewisham.gov.uk/youthspace/ca/webpagesf/pollination.jpg

http://www.cls.zju.edu.cn/sub/classroom/botany/ketang/images/4/6/106.jpg

self pollination with the help of an insect-- http://www.hiltonpond.org/images/RagwortSmallsFly02.jpg

Answer 2

Pollination is a process whereby the pollen grains from the anther(male part of the flower)are transferred to the stigma(female part of the flower).
After pollination, the style,which holds the stigma,will develop a tube where the pollen grains(also known as 'sperm')travels down and go to the ovary.
The 'sperm' will then meet with the egg cell which is in the ovule(undeveloped seed).The ovule is found in the ovary.Like animals,the 'sperm' fuses with the egg cell and becomes a seed.This process is known as Fertilisation.
After fertilisation,the flower develops into fruits containing seed which are dispersed.The seeds will then germinate to producenew plants,which grow and mature into adult plants.

Answer 3

Pollen is the flower "sperm" in the form of microspherules that act as male fertlizer, to the flower "ovary", (the little bulbous organ close to the stem of the flower)
In botany, we have "male" producing flowers, with pystillus carrying the pollen in the tip, and female flowers, that posess only ovarium.
However, half of the flowers in nature are "hermaphrodytes" that is, they posess both organs, and the pollen produced at the top of the center of the flowers, let the pollen fall by gravity on its own ovaries, carrying out "self pollination" that is, without the intervention of other plant or flower

Answer 4

The pollen grain from the stamen of the flower fertilizes the ovule of the same flower or other flowers of the same plant. Examples of plants that use this form of pollination are wheat, tomato, peach and pea.

Answer 5

When the pollen grains r transferred 4rm anther to stigma of the same flower or another flower on the same mother plant,it is called self pollination.
it is also known as autogamy.
auto means self,gamos means marriage.

Answer 6

simply put, you are fertilising yourself :-) a pollen grain is fertilising the ovule of the same flower or another flower on the same plant. the minute the pollen goes to another flower on a different plant it becomes cross pollination.

Answer 7

The transfer of pollen from a flower to the stigma of the same flower, or to different flowers on the same plant.

Answer 8

producing pollen by itself