Status of self-pollen in bee pollination efficiency of white clover (Trifolium repens L.)

Rodet Guy, Vaissière B.E., Brévault Thierry, Torre Grossa Jean-Paul. 1998. Status of self-pollen in bee pollination efficiency of white clover (Trifolium repens L.). Oecologia, 114 : pp. 93-99.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
[img] Published version - Anglais
Access restricted to CIRAD agents
Use under authorization by the author or CIRAD.

Télécharger (396kB) | Request a copy

Url - éditeur :

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Abstract : Flowers of white clover (Trifolium repens L.) are hermaphrodite and self-incompatible; their cross- pollination depends entirely on insect visitors, mainly bees (Apoidea). Because self-pollination of white clover occurs before flower anthesis, we determined whether selfing affected the pollination efficiency of a honeybee visit. We compared pollen deposition in emasculated and intact flowers following (1) a single honeybee visit, (2) open-pollination for a day and (3) enclosure in a cloth bag to prevent insect visits. In emasculated flowers, open-pollination resulted in more pollen deposited than after one visit (+30%) which is consistent with flowers being visited more than once by pollinators during the course of a day. On intact flowers, saturation of the stigma was achieved after the first visit of a honeybee (near 280 grains) because of self-pollination. Additional visits did not increase pollen deposits, but they improved pollen efficiency in terms of numbers of pollen tubes reaching the ovules. In such a context of easily saturated stigmas, self-pollen does not inhibit cross-pollen activity, but represents a constraint for pollination which demands multiple bee visits to each flower to achieve maximum fertilization. (Résumé d'auteur)

Classification Agris : F63 - Plant physiology - Reproduction

Auteurs et affiliations

  • Rodet Guy, INRA (FRA)
  • Vaissière B.E., INRA (FRA)
  • Brévault Thierry, CIRAD-FLHOR-ARF (REU) ORCID: 0000-0003-0159-3509
  • Torre Grossa Jean-Paul, INRA (FRA)

Source : Cirad-Agritrop (

View Item (staff only) View Item (staff only)

[ Page générée et mise en cache le 2021-02-26 ]