Introduction The transfer of pollen grains from the anther of a flower to the stigma of the same or another flower is called pollination. In angiosperms and the most of the gymnosperms, pollination is an essential process for sexual reproduction. Pollination may be of the following two types:
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The transfer of pollen grains from anthers to the stigma of the same flower is known as the self-pollination. Self –pollination takes place only in case of bisexual flowers, where the anthers and stigma mature simultaneously. In such case the stigma receives the pollen grains from the same flower or different flower of the same plant. When a flower is pollinated by its own pollen, it is called autogamy as in wheat, pea, rice, etc. When pollen grains from one flower are transferred on the stigma of another flower borne on the same plant, it is called geitonogamy.
Adaptation for self-pollination In nature self-pollination is favoured by one of the following adaptations in flower:
Characteristics of self-pollinated flowers The characteristics of self-pollinated flower or plants are given below:
Advantages of self-pollination The main advantages of self-pollination are as below:
Last words As you have seen there are many advantages of self-pollination and there is no need for any medium, there are still some disadvantages of self-pollination which are given below:
Hakimuddin Kuwakhedawala is based in India with over 15 years experience as a teacher. Teaching and writing are his passion. Most of the articles of Hakimuddin are related to education, exam, environmental problems, etc.
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