Explain the difference between self-pollination and cross-pollination.

Pollination is the sexual method of reproducing in all plants by the process of transferring the pollen grains from the anther to the stigma of the gynoecium. There are two types of pollination. They are self and cross pollination. Some differences are listed below

Self-pollination Cross pollination
The process of transfer of pollen grains from anthers to the stigma of a flower, but when this process is between the flowers of the same plant than the term is called self-pollination. The process of transfer of pollen grains between the flowers of the different plants of the same species is called cross-pollination.
It involves single plant Two different plants of the same species are involved
Self-pollination occurs in perfect flowers only. It occurs in both imperfect and perfect flowers.
Pollinating agents are not required. Pollinating agent such as wind, water, insects, etc. is not required
Wheat, rice, pea, orchids, barley, tomatoes, peaches, apricot. Mulberry, maize, pumpkins, strawberries, blackberries, plums, grapes, daffodils, maple, catkins, grasses.
Transfers a limited number of pollens. Transfers large numbers of pollen.

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