self-pollination (redirected from self-pollinator)

self-pol·li·na·tion (slfpl-nshn)

n.

Transfer of pollen from an anther to a stigma of the same flower.

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self-polli·nate v.

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self-pollination

Noun

Bot the transfer of pollen from the anthers to the stigma of the same flower

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self-pollination  (slfpl-nshn)

The transfer of pollen from a male reproductive structure (an anther or male cone) to a female reproductive structure (a stigma or female cone) of the same plant or of the same flower. Self-pollination tends to decrease the genetic diversity (increase the number of homozygous individuals) in a population, and is much less common than cross-fertilization. Many species of plants have evolved mechanisms to promote cross-pollination and avoid self-pollination, though certain plants, such as the pea, regularly self-pollinate. Compare cross-pollination.

Thesaurus

Noun

1.

self-pollination - fertilization by transfer of pollen from the anthers to the stigma of the same flower pollenation, pollination - transfer of pollen from the anther to the stigma of a plant cleistogamy - the production of small nonopening self-pollinating flowers cross-pollination - fertilization by transfer of pollen from the anthers of one flower to the stigma of another