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ü It is essential for survival of plants on earth. It leads to fertilization and production of seeds and fruits, which ensure continuity of plant life.
ü The role of pollination in the production of hybrid seeds has been of great significance.
ü The pollination, especially cross pollination results in the production of plants with a combination of characters from two plants. This helps to merge useful characters from two different plants into one
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DIFFERENCE BETWEEN SELF AND CROSS POLLINATION
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No.
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Self Pollination
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Cross Pollination
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1.
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In self pollination, the pollen grains are transferred from anther to stigma of the same flower or different flower present on the same plant.
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In cross pollination, the pollen grains are transferred from anther to stigma of another flower present on a different plant.
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2.
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In self pollination, only one plant is involved.
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In cross pollination, two different plants are involved.
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3.
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It is a sure method of pollination (pollination rarely fails).
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It is not a sure method of pollination (pollination may fail).
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4.
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External pollinating agents are not required.
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External pollinating agents are required.
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5.
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Pure line progeny can be obtained.
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Pure line progeny cannot be obtained.
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6.
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It does not help in evolution.
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It helps in evolution.
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7.
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Undesirable characters cannot be eliminated.
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Undesirable characters can be eliminated.
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