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

AcademicBiologyNCERTClass 7

Difference between Self-Pollination and Cross-Pollination is as follows:

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Self-PollinationCross-Pollination
1. Pollen of one flower transfers to the stigma of the same flower, or another flower of the same plant.1. Pollen of one flower transfers to the stigma of the different flower, or another flower present on a different plant.
2. Occurs in genetically same plants.2. Occurs in genetically different plants of the same species.

3. Limited amounts of pollen grains are produced.

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3. Large amounts of pollen grains are produced.

4. External pollinating agents are not required.

4. External pollinating agents are required such as water, wind, insects etc.

5. Both the stigma and anther mature simultaneously.

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5. Both the stigma and anther mature at different times.

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6. Pollination can be carried out even in the closed flower.

6. The flower should be open for this type of pollination.

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7. Example- Orchid, Sunflower, Wheat, Pea, etc.

7. Example- Papaya, Pumpkin, Apple, etc.\r
  "[Image is posted for extra information and better understanding only]" 


raja
Updated on 10-Oct-2022 12:46:26

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