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Notes: Tetraploid Aspen Production Using Unreduced Pollen from Triploid Males

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Unreduced pollen from a triploid Populus tremuloides male was used to pollinate a diploid P. tremuloides female. One putative tetraploid was recovered. When this putative tetraploid flowered, pollen from it was applied to a diploid female. All resulting seedlings were checked and thirty-nine of them were found to have triploid counts. Obtaining triploid counts on a majority of the seedlings confirmed the tetraploid nature of the male parent and the usefulness of the unreduced pollen grain technique to produce tetraploids. Forest Sci. 22:329-330.

Keywords: Populus tremuloides; hybridization; polyploidy

Document Type: Miscellaneous

Affiliations: Senior Research Associate, Division of Natural Materials and Systems, The Institute of Paper Chemistry, Appleton, Wisconsin 54911

Publication date: September 1, 1976

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  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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