Pollination and Fertilization in Plants

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Overview

The process of transfer of pollen grains from an anther to the stigma of a same or different flower is called pollination. This note provides us an information on pollination and fertilization in plants.
Pollination and Fertilization in Plants

Pollination

The process of transfer of pollen grains from the anther to stigma of a same or different flower is called pollination.

Self-pollination: The pollination (the process of transfer of pollen grains) that occurs in the same flower is called self-pollination. This type of pollination only occurs in complete flower. No natural agents like air, water or insect is required for this process.

Cross-pollination: The pollination (the process of transfer of pollen grains) that occurs between two flowers is called cross-pollination. This occurs in both unisexual and bisexual flower. The external agents like the bee, air, other insects, water etc. are required.

Fertilization

Fertilization is the process of fusion of the female gamete, the ovum or egg and the male gamete produced in the pollen tube by the pollen grain. The reproductive part of the plant is the flower. It contains androecium as male reproductive part and gynoecium as female reproductive part. After maturity androecium, produce pollen grains as male gamete and gynoecium produce ovule as female gamete. After maturation of gamete, pollination takes place. The pollination may be self or cross. After pollination, the fusion of male and female gamete takes place. This process is called fertilization and a fertilized ovum is called zygote. The zygote then undergoes mitosis and form the embryo. The plant embryo is called seed. If seed encounters favorable environment it germinates to become a new plant.

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Difference between Fertilization and pollination

S.N Pollination fertilization
1. It is the process of transfer of pollen grains from the anther to the stigma of the flower. It is the process of fusion of male and female gamete.
2. It occurs before fertilization. It occurs after pollination.
3. It occurs only in plants. It occurs in both plants and animals.

Things to remember
  • The process of transfer of pollen grains from an anther to the stigma of a same or different flower is called pollination.
  • Fertilization is the process of fusion of the female gamete, the ovum or egg and the male gamete produced in the pollen tube by the pollen grain.
  • Flower contains androecium as male reproductive part and gynoecium as female reproductive part.
  • After maturation of gamete, pollination takes place.

 

  • It includes every relationship which established among the people.
  • There can be more than one community in a society. Community smaller than society.
  • It is a network of social relationships which cannot see or touched.
  • common interests and common objectives are not necessary for society.
Videos for Pollination and Fertilization in Plants
Flowers: Cross Pollination and Self Pollination
Introduction to Pollination
Sexual Reproduction In Flowering Plants | Fertilization
Questions and Answers

Pollination is the process of transfer of pollen grains from the anther to the stigma of a flower.

There are two types of pollination. They are self-pollination and cross-pollination.

The process of transfer of pollen grains from the anther to the stigma of another genetically identical flower of the same plant is called self-pollination.

The process of transfer of pollen grains from the anther of a flower of one plant to the stigma of the flower of another plant of same species is called cross-pollination.

Self-pollination is also called autogamy.
Cross-pollination is also called allogamy.

The difference between fertilization and pollination are:

S.N Pollination fertilization
1. It is the process of transfer of pollen grains from the anther to the stigma of a flower. It is the process of fusion of male and female gamete.
2. It occurs before fertilization. It occurs after pollination.
3. It occurs only in plants. It occurs in both plants and animals.

Fertilization is defined as the process of fusion of the female gamete, the ovum or egg and the male gamete produced in the pollen tube by the pollen grain.

The male reproductive part is androecium whereas female reproductive part is gynoecium.

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