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Notes: Tetraploid Aspen Production Using Unreduced Triploid Pollen

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One fast-growing tetraploid tree was produced, apparently from the fertilization of a normal egg cell (1n) from diploid quaking aspen with an unreduced (3n) pollen grain, dry screened from the 37-44 fraction from one natural triploid quaking aspen. Large grains could be concentrated by screening in water, but pollinations with a slurry of such grains were failures. Forest Sci. 16: 180-182.

Keywords: Populus tremuloides

Document Type: News

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

Publication date: June 1, 1970

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