Types of Pollination

What is Pollination?

Pollination can be defined as the transfer of pollen from an anther the male part of the plant to the stigma, which is the female part of the plant. Pollen can be transmitted through animals such as insects and birds, and also through water, wind, etc., and they are known as pollinating agents. Stamen will interact with the stigma of the same species of flower, so it is important that stamen will reach the stigma of the same family plant for successful pollination....

Process of Pollination

Pollination begins with the transfer of pollen grains to the stigma in a flower of a plant, when pollen grain reaches then a pollen tube will be formed with the style length that basically connects the stigma and ovary. When the pollen tube is completely formed the pollen grain will start transmitting sperms to the ovary....

Agents of Pollination

During sexual reproduction, these agents of pollination are the ones who transfer pollen grains from one to flower or plant.  It is classified based on Anatomy and on what types of forces are involved....

Types of Pollination

Plants having flowers depend on pollination for reproduction. There are two types of pollination:...

Self Pollination

Self-pollination occurs when pollen grains are transferred from the anther of one flower of a plant to the stigma in the same flower of the same plant. It can also occur when pollen grains are transferred from the anther of one flower of one plant to the stigma of another flower but of the same plant. During self-pollination, the eggs and sperm of the same flower share the same genetic information which leads to a reduction in genetic diversity....

Cross-Pollination

Cross-pollination occurs when pollen grains are transferred from the anther of one flower of one plant to the stigma of another flower of another plant. During cross-pollination, the eggs and sperms will share their different genetic information which leads to an increase in genetic diversity. While combining the different genetic information the offspring will become unique....

Mechanism that Prevents Self-pollination

Two noticeable mechanisms that prevent self-pollination are:...

Mechanism that Permits Self-pollination

Perfect flower: This type of flower also called bisexual and hermaphroditic flower, is self-fertilized by being present in a single plant because both male and female reproductive organs are present in the same flower. It will be promoted. When pollen release and stigma receptivity are synchronized and there is no mechanism to facilitate pollen transfer from flower to flower, pollen transfer within the flower is guaranteed. Homogamy: Female and male reproductive organs mature at the same time. That is, pollen is released as soon as the stigma is absorbed. Cleistogamy: This is a plant mechanism in which pollination and fertilization occur before or just before flowering....

FAQs on Pollination

Q1: What is pollination?...