Journal article
Pollination methods, stigma receptivity and pollen tube growth in Eucalyptus argophloia
Silvae Genetica, Vol.61(3), pp.121-126
2012
Abstract
Eucalyptus argophloia Blakely (Western white gum) has shown potential as a commercial forestry timber species in marginal environments of north-eastern Australia. We measured early pollination success in Eucalyptus argophloia to compare pollination methods, determine the timing of stigma receptivity and compare fresh and stored pollen. Early pollination success was measured by counting pollen tubes in the style of E. argophloia 12 days after pollination. We compared the early pollination success of 1) Artificially Induced Protogyny (AIP), one-stop and three-stop methods of pollination; 2) flowers pollinated at 2 day intervals between 2 days before and 6 days after anthesis and 3) fresh pollen and pollen that had been stored for 9 months. Our results show significantly more pollen tubes from unpollinated AIP and AIP treatments than either the one-stop pollination or three-stop pollination treatments. This indicates that self-pollination occurs in the unpollinated AIP treatment. There was very little pollen tube growth in the one-stop method indicating that the three-stop method is the most suitable for this species. Stigma receptivity in E. argophloia commenced six days after anthesis and no pollen tube growth was observed prior to this. Fresh pollen resulted in pollen tube growth in the style whereas the stored pollen resulted in a total absence of pollen tube growth. We recommend that breeding programs incorporating E. argophloia as a female parent use the three-stop pollination method, and controlled pollination be carried out at least six days after anthesis using fresh pollen.
Details
- Title
- Pollination methods, stigma receptivity and pollen tube growth in Eucalyptus argophloia
- Authors
- Bruce Randall (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringDavid Walton (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringDavid J Lee (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and EngineeringHelen M Wallace (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
- Publication details
- Silvae Genetica, Vol.61(3), pp.121-126
- Publisher
- J.D. Sauerlaender's Verlag
- Date published
- 2012
- DOI
- 10.1515/sg-2012-0015
- ISSN
- 0037-5349
- 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
- 99450272202621
- Output Type
- Journal article
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