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dichogamy

Line breaks: di|chog¦amy
Pronunciation: /dʌɪˈkɒɡəmi
 
/

Definition of dichogamy in English:

noun

[mass noun] Botany
The ripening of the stamens and pistils of a flower at different times, so that self-fertilization is prevented. Compare with homogamy (sense 3).
Example sentences
  • However, the form of dichogamy (protogyny and protandry) is likely to have different consequences for autogamy versus geitonogamy.
  • Flowering plants have several mechanisms that have evolved to prevent self-fertilization, e.g. self-incompatibility systems, heterostyly and dichogamy.
  • However, if flowering is asynchronous and the behaviour of individual pollinators does not follow a regular pattern within a plant, dichogamy might have little effect on reducing geitonogamy.

Origin

mid 19th century: from Greek dikho- 'apart, in two' + gamos 'marriage'.

Derivatives

dichogamous

1
adjective
Example sentences
  • Darwin deduced that the first flowers to open sometimes aborted because they were of no use in dichogamous hermaphrodite plants.
  • Flowers are unisexual, dichogamous in nature and, thus, most species are open-pollinated.
  • The breeding system of the dichogamous hermaphrodite species Silene acutifolia, endemic to north-west Spain and north and central Portugal, is examined.

Definition of dichogamy in:

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