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Compatibility and pollinator efficiency tests on Pyrus communis L. cv.'Conference'

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Jacquemart, Anne-Laure [UCL] Michotte-Van der Aa, Agnès Raspé, Olivier [UCL]

Effectiveness of pollination was predicted in a 'Conference' pear orchard by examining pollen tube growth. This histological technique allows a reliable and rapid estimation of pollination quality. Intra- and inter-cultivar compatibility was tested by hand pollinations with 'Conference' or 'Doyenne' pollen, respectively. In intra-cultivar pollinated flowers, limited pollen tube growth and large callose plugs were observed. This cultivar was thus considered self-incompatible. As insect pollinators deposit variable quantities and mixtures of intra-cultivar (incompatible) and inter-cultivar (compatible) pollen grains, their relative efficiency can differ greatly. The pollination efficiencies of honeybees (Apis mellifera L.) and of bumblebees (Bombus terrestris L.) were compared by examining pollen deposition and pollen tube growth following single floral visits. Bumblebees deposited higher quantities of more compatible pollen grains per stigma than honeybees; whereas no differences were detected in pollen tube growth. The implications for 'Conference' pear production are discussed.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès libre
Publication date 2006
Language Anglais
Journal information "Journal of Horticultural Science and Biotechnology" - Vol. 81, no. 5, p. 827-830 (2006)
Peer reviewed yes
Publisher Headley Brothers Ltd (Ashford)
issn 1462-0316
Publication status Publié
Affiliation UCL - Autre
Links
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  5. McGregor, S. E. (1976). Insect pollination of cultivated crop plants, USDA. (http://gears.tucson.ars.ag.gov/book/).
  6. Michotte-Van Der A. A., A. and Jacquemart, A. L. (2003). Les principales variétés de poirier cultivées en Belgique (Pyrus communisL., var. ‘Conférence’, var. ‘Doyenné’ et var. ‘Durondeau’) sont-elles compatibles intra-variété?Le Fruit Belge,503,107–112.
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Bibliographic reference Jacquemart, Anne-Laure ; Michotte-Van der Aa, Agnès ; Raspé, Olivier. Compatibility and pollinator efficiency tests on Pyrus communis L. cv.'Conference'. In: Journal of Horticultural Science and Biotechnology, Vol. 81, no. 5, p. 827-830 (2006)
Permanent URL http://hdl.handle.net/2078.1/38220