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  • 1 University of Szeged Department of Plant Biology H-6701 Szeged P. O. Box 654 Hungary
  • 2 University of Szeged Botanic Garden H-6726 Szeged Lövölde u. 42 Hungary
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Numerous experiments have suggested that in many species higher floral display can be more attractive for pollinators, but the possibility of between-flower self-pollination, namely geitonogamy may reduce the floral longevity, the fitness of both individuals and the offspring. In this study we investigated how phenological parameters (mainly floral display) change temporally and how they affect the female reproductive success of cymose Iris sibirica. We found that in blooming sequence of both individuals and the population 3 sections can be separated. The number of levels and flowers per stalks on the plants observed was very variable yearly. Female reproductive success parameters (fruit set and seed set) showed intra- and interannual variations, which were probably due to intra-plant resource allocation.

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