Competition-dependent abscission of self-pollinated flowers of Phormium tenax (Agavaceae): a second action of self-incompatibility at the whole flower level?

J. X. Becerra, D. G. Lloyd

Research output: Contribution to journalArticlepeer-review

105 Scopus citations

Abstract

The relative success of fruit from paired self- and cross-pollinations was examined in Phormium tenax when pollinations were separated by different distances on the same and different inflorescences. The success of selfed fruits is determined by the degree of competition with crossed fruits and may be an expression of self-incompatibility. Competition-dependence of the abscission of selfed flowers has not been documented previously. Competition-dependent abscission of selfed flowers allows a high level of outcrossing to be achieved while it assures seed set when pollinations are scarce. -from Authors

Original languageEnglish (US)
Pages (from-to)458-469
Number of pages12
JournalEvolution
Volume46
Issue number2
DOIs
StatePublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Agricultural and Biological Sciences(all)

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