Comparison of three pollination methods for Eucalyptus argophloia, a small-flowered eucalypt

Bruce Randall; David Walton; David J Lee; Helen M Wallace

doi:10.1007/s13595-014-0407-z

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Comparison of three pollination methods for Eucalyptus argophloia, a small-flowered eucalypt

Journal article

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Comparison of three pollination methods for Eucalyptus argophloia, a small-flowered eucalypt

Bruce Randall, David Walton, David J Lee and Helen M Wallace

Annals of Forest Science, Vol.72(1), pp.127-133

2014

DOI: https://doi.org/10.1007/s13595-014-0407-z

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Abstract

eucalyptus argophloia

pollination methods

pollen tubes

seed set

pollen age

Context: Most studies assess pollination success at capsule maturity, and studies of pre-zygotic processes are often lacking. Aims: This study investigates the suitability of controlled pollination for a potential forestry plantation species, Eucalyptus argophloia, by examining pre- and post-zygotic pollination success. Methods: Pollen tube development, capsule set and seed set are compared following three-stop pollination, artificially induced protogyny (AIP), AIP unpollinated and open pollination. The fecundity of stored pollen was compared with that of fresh pollen. Results: Three-stop pollination, AIP and open pollination had similar numbers of pollen tubes, but AIP unpollinated had none. Open pollination produced significantly more capsules and total number of seeds than the other treatments. There were significantly more seeds per retained capsule for the open pollination and three-stop pollination treatments than for the AIP and AIP unpollinated pollination treatments. There were no significant differences relative to the age of pollen. Conclusions: Pre-zygotic success in terms of pollen tubes was similar for open-pollinated, three stop and AIP, but was not reflected in post-zygotic success when the open pollination and three-stop method produced significantly more seeds per retained capsule than the AIP treatments and open pollination yielded more seeds. Capsule set and total seed set for open pollination, and fewer capsules in controlled pollinations, may reflect physical damage to buds because of the small E. argophloia flowers. Suitable alternative breeding strategies other than controlled pollinations are discussed for this species.

Details

Title: Comparison of three pollination methods for Eucalyptus argophloia, a small-flowered eucalypt
Authors: Bruce Randall (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
David Walton (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
David J Lee (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Helen M Wallace (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Publication details: Annals of Forest Science, Vol.72(1), pp.127-133
Publisher: Springer France
Date published: 2014
DOI: 10.1007/s13595-014-0407-z
ISSN: 1286-4560
Organisation Unit: School of Science and Engineering - Legacy; Tropical Forests and People Research Centre; University of the Sunshine Coast, Queensland; GeneCology Research Centre - Legacy; Forest Industries Research Centre; Forest Research Institute
Language: English
Record Identifier: 99448974702621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Forestry

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