Question
Distinguish between: Autogamy (Self-pollination) – Xenogamy (cross pollination)
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Answer
Autogamy (Self-pollination) | Xenogamy (Cross pollination) |
1. In self-pollination, bisexual flower is pollinated by its own pollen grains. | 1. In cross pollination the pollen grains from the anther are carried to the stigma of another flower of same species. |
2. Self-pollination does not depend upon external agents for pollination. | 2. Cross pollination does depend upon external agents for pollination. |
3. Self-pollination is economical as there is no wastage of pollen grains. | 3. Cross pollination is not economical as there is wastage of pollen grains during transfer. |
4. Offspring are genetically similar to their parents; E.g. Pea | 4. Offspring are genetically varied due to recombination. E.g. Food and fibre crops – Maize, Rice. |
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