POLLINATION IN PLANTS

CONTENT

1. Meaning of Pollination
2. Types of Pollination
3. Features of Self Pollination and Cross Pollination
4. Features of Wind and Insect Pollinated Flowers
5. Agents of Pollination

Meaning of Pollination

Pollination is the process by which pollen grains from an anther of a flower are transferred to the stigma of the flower or another flower of the same species. In most species of flowering plant, external agent brings about the pollination. Flowers have evolved special structured and mechanisms to ensure successful pollination. The proce enables fertilisation and sexual reproduction to occur.

Types of Pollination

There are two types of pollination:

1. Self pollination.
2. Cross pollination.

1. Self Pollination

This is the process by which mature pollen grains are transferred from the anthers of a flower to the stigma of the same flower (autogamy) or other flowers on the same plant (cleistogamy). It is common in short-lived annual species. This process has a high successful rate. Self pollination brings the male and female gametes of the same plant together.