Introduction to pollination
Just like how plants help animals, animals also help plants in many important processes.
One such process is known as pollination which is needed for the reproduction of plants.
We all know that the plants are fixed and they cannot move.
And to reproduce it is very important for the male gametes to fuse with female gametes.
The process of transfer of pollen to the stigma is known as pollination.
It is a feature of gymnosperms and angiosperms.
Pollination can be done by various means. Even animals help plants out in this process.
Let us see the different means by which pollination occurs
Flower of a plant can be of two types i.e unisexual and bisexual flower.
When androecium and gynoecium are present on a same flower it is known as bisexual flower.
When either androecium or gynoecium are present on a flower it is known as unisexual flower e.g. papaya
Based on the types of flower, pollination is divided into two - Self-pollination and Cross-pollination
Now lets see some facts about self-pollination
When the pollen is transferred to the stigma of the same flower or another flower of the same plant it is known as self-pollination
It takes place between bisexual or unisexual flower borne on same plant.
Now lets see some facts about cross-pollination
Cross-pollination is the transfer of pollen to the stigma of another flower of a different plant.
It needs various agents like air, water, insects birds etc for pollination.
The process of transfer of pollens to the stigma is known as pollination.
It is of two types - self pollination or cross-pollination.
Self-pollination occurs when the pollen is transferred to the stigma of the same or another flower of the same plant.
Cross-pollination occurs when the pollen is transferred to the stigma of the flower of a different plant.