Intrapopulation variation in nectar secretion in Impatiens capensis

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1984 English Publisher:Springer Science and Business Media LLCJournal:Oecologia, volume 63, pages 418-422 (issn: 0029-8549, eissn: 1432-1939,

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Authors: J H, Marden;

doi: 10.1007/bf00390675

pmid: 28311221

Intrapopulation variation in nectar secretion in Impatiens capensis

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Abstract

Variation in nectar secretion rates within a population of Impatiens capensis was examined. There was no evidence for phenotypic variation between plants in nectar secretion rates. There was significant daily variation in secretion rates, which appeared to be caused by environmental factors. Individual flowers showed variable rates of secretion over consecutive hours, and these fluctuations in secretion occurred independently among the many flowers on any single plant. Time of day, plant size, and flower age (as indicated by sexual phase) showed no relationship to nectar secretion rates.

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