Definition of geitonogamy in English:
geitonogamy
noun ˌɡʌɪtəˈnɒɡəmiˌɡītnˈäɡəmē
mass nounBotany The fertilization of a flower by pollen from another flower on the same (or a genetically identical) plant.
Compare with xenogamy
Example sentencesExamples
- Because geitonogamy requires that individual pollinators visit more than one consecutive flower on a plant, I quantified the relation between the number of flowers open on a branch and the number visited sequentially by foraging bees.
- Protogyny may also reduce geitonogamy if the flowers on an inflorescence develop so that all open flowers are in either male or female phase at any given time.
- Both species use a mixed breeding system, consisting of xenogamy, geitonogamy, and autogamy; agamospermy is unimportant.
- Inefficient beetle-pollination and the automimicry system via asynchronous flowering might be responsible for the high level of pollen shortage and frequent geitonogamy.
- However, successful geitonogamy likely occurs because flowers at different stages of development are present at any one time on a plant and pollinators appear to move pollen effectively between such flowers.
Derivatives
adjective
Botany Comparing intact and emasculated flowers open on the same plant on the same day will underestimate autogamy, because emasculation of one flower potentially reduces the geitonogamous pollen received by the other.
Example sentencesExamples
- Consequently, it reduces male fitness because geitonogamous pollen grains are barred from fertilizing ovules.
- Unless pollen is transported to another plant, geitonogamous self-pollinations therefore become more likely when plants are visited.
- Furthermore, behavioral data reveal that pollen collection commonly is followed by geitonogamous pollination.
- This indicates that frequent geitonogamous selfing occurs.
Origin
Late 19th century: from Greek geitōn, geitono- 'neighbour' + -gamos 'marrying'.